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Product Details:
| Model Name/Number | 7SR12 |
| Brand | Siemens |
| Voltage | 220-240V DC |
| Usage/Application | Directional Over Current Relay |
| Current | 1A/5A |
| Supply Voltage | 220-240 |
| Type | Industrial Relay |
Product Details:
| Model Name/Number | 7SR11, 7SR110 |
| Brand | SIEMENS |
| Usage/Application | Overcurrent Protection |
| Current | 1A-5A |
| Measuring Range | 1 A - 5A |
| Type | Industrial relays |
Siemens Reyrolle 7SR11 Overcurrent Relay functionality allows highly flexible settings for current and time grading making it compatible with all types of overcurrent protection.
Reyrolle 7SR11 Relay FeaturesThe relay functionality allows highly flexible settings for current and time grading making it compatible with all types of overcurrent protection.
The relays are available in single and four pole variants housed in E4 cases with the IEC 61850 protocol option housed in an E6 case. Integrated logic is provided to allow the optimal configuration of relay functionality with the relays analogue inputs and binary input/output circuits.
Protection, instrumentation and metering functionality is accessible via data comms channel(s). A front USB port for local PC connection or rear electrical RS485 port for remote connection is provided.
Discover the comprehensive range of Siemens Reyrolle numerical relays with us and get the best solution for your requirements.
Additional Information:
Product Details:
| Minimum Order Quantity | 1 Piece |
| Brand | Siemens |
| Mounting Type | Wall mounted / Din rail / Panel |
| Relay Type | Overload Relay |
| Voltage | Refer PDF document |
| Voltage Type | on |
| Type | Current Relay |
| Model Name/Number | 7SR242 |
| Current | Refer document PDF |
Reyrolle 7SR242
The 7SR242 is used as a protection, control and monitoring relay for two winding transformers of all vector groups, primary configurations/connections and earthing connections.
Features
The relay functionality also allows its application in auto-transformer and reactor protection schemes.
Relays are housed in size E8 or E10 cases. Integrated logic is provided to allow the optimal configuration of relay functionality with the relays analogue inputs and binary input/output circuits.
Protection, control, instrumentation and metering functionality is accessible via data comms channel(s). A front USB port for local PC connection or rear electrical RS485 port for remote connection is provided. Additional rear port options are available.
Functions
Protection functions
Supervision functions
Monitoring functions
Additional Information:
Product Details:
| Usage/Application | Overcurrent PROTECTION Relay |
| Model Name/Number | 7SR220 |
| Brand | SIEMENS |
| Voltage | 220-240V |
| Current | 1A-5A |
| Power Source | Electric |
| Relay Type | Voltage Relay |
| Mounting Type | Din Rail |
7SR220 series relays include for directional control of the overcurrent and earth fault functionality and are typically installed where fault current can flow in either direction i.e. on interconnected systems. Relays have five current and four voltage inputs they are housed in E6 or E8 cases.
Integrated logic is provided to allow the optimal configuration of relay functionality with the relays analogue inputs and binary input/output circuits. The optional auto-reclose feature offers an integrated solution for use on OHL feeders.
The relay functionality allows highly flexible settings for current and time grading making it compatible with all types of overcurrent protections.
Protection, instrumentation and metering functionality is accessible via data comms channel(s). A front USB port for local PC connection and rear electrical RS485 port for remote connection are provided as standard, additional ports are available as options.
Product Details:
| Usage/Application | 7SR17 |
| Voltage | 220-240V |
| Current | 1A-5A |
| Brand | SIEMENS |
| Type | Industrial Relay |
| Mounting | Din rail / panel |
| Voltage Type | on |
| Display | 4 Small Display (lines) |
Stall Protection (14)
Under/Over Voltage (27/59)
Power/Power Factor (32/55)
Undercurrent (37)
Current Unbalance Protection (46)
Phase Reversal (46Ph Rev)
Voltage Unbalance (47)
Start Protection (48/66)
Motor Thermal Overload (49R)
Directional Overcurrent (67)
Directional Earth Fault (67G/67N)
Backspin Protection (81B)
Under/Over Frequency (81)
High Impedance REF (87REF)
Temperature Inputs (via Comms Port) (RTD)
Circuit Breaker Fail (50BF)
CT Supervision (60CTS)
VT Supervision (60VTS)
Trip Circuit Supervision (74T/CCS)
Instrumentation
Optional RTD inputs
Cold Load Settings
Eight Settings Groups
Password Protection
Self Monitoring
Circuit Breaker Trip Counter
Fault, event and waveform records
Product Details:
| Model Name/Number | 7SR1004 |
| Current | 1A and 5A |
| Current Inputs | 4 |
| Voltage Inputs | 3 |
| Binary Inputs | 9 |
| Binary Outputs | 6 |
| LEDs | 10 |
| Communication protocol | MODBUS RTU and IEC 103 |
Product Details:
| Size | 4 molded casing |
| Measuring input | 1/5A,50/60 Hz |
| Auxiliary voltage | 60 to 240 V AC/DC |
| Communication | Front port: USB and rear: RS485 supporting IEC 60870-5-103 or Modbus RTU or DNP 3.0 |
| BI and BO | 6 binary inputs & 6 binary outputs |
| Protection function | standard version |
Product Details:
| Minimum Order Quantity | 1 Piece |
| Brand | Siemens |
| Model Name/Number | 7SR158 |
| Voltage | 220V-240V |
| Relay Type | Voltage Relay |
| Mounting Type | Din Rail |
| Type | Industrial Relay |
| Display | 4 Small Display (lines) |
| Size | E4,E6 (xE) |
The Reyrolle 7SR158 Argus voltage and frequency relays are numerical, multifunctional devices, with functionality designed for connection to voltage transformers. The voltage and frequency functionality is supplemented by data storage, instrumentation, user configurable logic and data communication features. A menu based user friendly interface provides local access to relay settings, instruments and operational data. The fascia also benefits from 9 user configurable, tri-coloured LEDs and a USB port for PC access.
The key functions provided include 27/59 -Under and Over voltage, 81 -Under and Over frequency, 78 -Voltage vector shift and 81R -Rate of change of frequency.
Relays have three voltage inputs, six binary inputs and eight binary outputs and are housed in a size E4 case. Programmable logic is provided to allow the optimal configuration of relay functionality. A rear electrical RS485 port is provided for SCADA connection using either IEC60870-5-103, DNP3.0 or MODBUS RTU protocol.
Protection Functions
1. Under/Over Voltage
2. Under/Over Frequency
3. Rate of change of Frequency
4. Negative Phase Sequence Voltage
5. Neutral Voltage Displacement
6. Voltage vector shift
Supervision Functions
1. Trip and Close circuit supervision
2. CT Supervision (60CTS)
3. Lockout
4. Monitoring Functions
5. Primary/Secondary Line and Phase Voltages
6. Historical Demand Record
7. Positive Phase Sequence (PPS) Voltage
8. Negative Phase Sequence (NPS) Voltage
9. Zero Phase Sequence (ZPS) Voltage
Further Functions
1. Four Settings Groups
2. 2 Levels Password Protection
3. Self Monitoring
4. Circuit Breaker Trip and Maintenance Counters
5. Fault, event and waveform records
6. Programmable user logic
7. User Alarms
8. Virtual Inputs/Outputs
9. Front USB Communication Port
10. Rear RS485 Communication Port
11. IEC60870-5-103, DNP 3.0 and MODBUS RTU
Product Details:
| Minimum Order Quantity | 1 Piece |
| Usage/Application | Protection Relays |
| Voltage | 220-240V |
| Current | 1A-5A |
| Brand | SIEMENS |
| Type | Voltage Relays |
| Mounting | Din rail / panel |
| Mounting Type | Din Rail |
| Display | 4 Small Display (lines) |
The 7SR191 Capa is a numerical protection device with a highly comprehensive functional software package.
The market for power capacitors is continually growing due to the expanding power network driven by increased customer demand. Power capacitors improve the performance, quality and efficiency of the system and minimize power loss. The 7SR191 Capa protection relay is designed with all of the necessary functionality for use on shunt connected distribution capacitor banks arranged in all of the common connection configurations:
1. Single Star
2. Double Star
3. Delta
4. H Configuration
The 7SR191 Capa is a numerical protection device with a highly comprehensive functional software package which includes a range of integral application functions aimed at reducing installation, commissioning, wiring and engineering time.
Features
1. User selectable hardware configuration to suit different bank arrangements
2. *3 pole overcurrent + 1 pole unbalance
3. 1 pole overcurrent + 3 pole unbalance
4. Optional voltage inputs
5. Re-energisation blocking to prevent CB closing until bank has self discharged
6. Overvoltage protection by integration analysis of current
7. Suitable for use with both internally/externally fused and fuseless capacitors
8. User programmable characteristics for all inverse voltage, current and thermal curves
9. Unbalance protection with natural spill compensation
Product Details:
| Minimum Order Quantity | 1 Piece |
| Brand | Siemens |
| Voltage | 220V-240V |
| Power Source | Electric |
| Relay Type | Frequency Relay |
| Mounting Type | Din Rail |
| Type | Industrial Relay |
| Model Name/Number | 7PG23 |
| Size | E3 (xE) |
The 7PG23 electro-mechanical single phase circulating current protection is used to detect earth faults in ‘high impedance’ protection schemes. The relay is typically applied used in transformer protection schemes.
One relay per phase can be applied to detect both phase and earth faults e.g. on reactors and stator windings of large machines.
The relay is a voltage operating device and has a user selectable operate voltage setting. The relay can be used in conjunction with an external shunt setting resistor where a higher operate current is required. An integral non-linear resistor limits over-voltages occurring during system faults. Operation flag indicator. Relays are housed in size E3 cases.
Protection Functions
High impedance restricted earth fault
Features
User selectable voltage setting
Integral voltage limiting device
Operation flag indicator
Product Details:
| Minimum Order Quantity | 1 Piece |
| Usage/Application | Motor protection |
| Voltage | 220-240V |
| Current | 1A-5A |
| Brand | SIEMENS |
| Type | Industrial Relay |
| Mounting | Din rail / panel |
| Size | E6 (xE) |
| Protection Functions | 50/50N,85,87 |
The 7PG21 is a three phase unit differential protection used to detect in zone phase and earth faults. The relay is applied to overhead line and underground cable circuits as well as shorter circuits such as interconnectors.
Relays (and associated CTs) are installed at each end of the protected circuit and connected together with dedicated metallic pilot wires.
This established protection system provides a simple, robust protection of proven performance facilitating straightforward installation, commissioning and maintenance.
Relays have 3 current inputs and are housed in E6 cases.
Additional relays and components can be added to the basic protection to provide:
1. Increased insulation level
2. Pilot Wire Supervision to monitor the integrity of the pilot circuit.
Protection Functions
1. Current differential protection over a single pair of pilot wires
Supervision Functions
1. Optional pilot wire supervision
2. Optional overcurrent guard (check)
Control Functions
1. Optional unstabilising / intertripping
Product Details:
| Usage/Application | Overcurrent Protection |
| Voltage | 220-240V |
| Current | 1A-5A |
| Brand | SIEMENS |
| Mounting Type | Din Rail |
| Type | Industrial Relay |
| Mounting | Din rail / panel |
| Voltage Type | on |
Siemens Reyrolle 7SR157 Numerical Relays Prices:
The Reyrolle 7SR157 Argus is a combined check and system synchronising relay designed to carry out controlled closing of a circuit breaker using measurements of the line and bus voltages. The relay will prevent closure of the circuit breaker if the differences in phase angle, slip frequency or magnitude of the voltages fall outside prescribed Limits.
If the parameters are within limits, the relay will issue an output which can be used to close the circuit breaker directly or in conjunction with an auto-reclose scheme.
Housed in a 4U high, size E4 case, the relay provides instrumentation and fault data with integrated input and output logic, data logging and fault reports. Communication access to the relay functionality is via a front USB port for local PC connection or rear electrical RS 485 port for remote Connection.
Additional Information:
Product Details:
| Usage/Application | High Impedance Bus Bar Protection |
| Voltage | 220-240V |
| Current | 1A-5A |
| Brand | SIEMENS |
| Type | Voltage Relays |
| Mounting | Din rail / panel |
| Relay Type | Voltage Relay |
| Mounting Type | Din Rail |
The 7SR23 DAD is a numeric high impedance circulating current relay has four current inputs, it is used as a unit protection to detect phase and earth faults.
The relay can be applied to bus bars, connections, transformers, reactors and motors.
The relay is used in ‘high impedance’ applications in conjunction with external stabilising resistors and non-linear resistors (Metrosils). Standardised external components can be provided in an Epsilon case to facilitate design and installation.
The integral CT supervision feature detects open circuits in the CT secondary wiring circuits, a consideration where CT circuits are switched.
Relays are housed in E6 or E8 cases. Integrated logic is provided to allow the optimal configuration of relay input and output functionality. Protection, instrumentation and metering functionality is accessible via data comms channels. A front fascia USB port for local connection and RS 485 rear port for remote connection are provided as standard, additional rear ports are available as options..
Additional Information:
Product Details:
| Usage/Application | Overcurrent Protection Relays |
| Voltage | 220-240V |
| Current | 1A-5A |
| Brand | SIEMENS |
| Type | Industrial Relay |
| Mounting | Din rail / panel |
| Relay Type | Voltage Relay |
| Display | 4 Small Display (lines) |
7SR224 series relays include for directional control of three phase overcurrent and earth fault functionality and typically installed as an integral controller for a pole mounted recloser. The controller offers an integrated auto-reclose solution for use on OHL feeders.
The relay functionality allows highly flexible settings for current and time grading making it compatible with all types of overcurrent protections.
Relays have four current and four voltage inputs and are housed in E10 cases.
Integrated logic is provided to allow the optimal configuration of relay functionality with the relays analogue inputs and binary input/output circuits.
Protection, instrumentation and metering functionality is accessible via data comms channel(s). A front USB port for local PC connection and rear electrical RS 485 port for remote connection are provided as standard, additional ports are available as options.
Additional Information:
Product Details:
| Usage/Application | Overcurrent and Earth fault protection |
| Model Name/Number | 7SR210 |
| Brand | SIEMENS |
| Voltage | 220-240V |
| Current | 1A-5A |
| Power Source | Electric |
| Relay Type | Voltage Relay |
| Mounting Type | Din Rail |
The 7SR210 series of relays provide overcurrent and earth fault protection. These relays are typically applied to provide the main protection on feeders and interconnectors and the back-up protection on items of plant such as transformers, Relays have four current inputs and are housed in E6 or E8 cases.
7SR220 series relays include for directional control of the overcurrent and earth fault functionality and are typically installed where fault current can flow in either direction i.e. on interconnected systems. Relays have five current and four voltage inputs they are housed in E6 or E8 cases.
Integrated logic is provided to allow the optimal configuration of relay functionality with the relays analogue inputs and binary input/output circuits. The optional auto-reclose feature offers an integrated solution for use on OHL feeders.
The relay functionality allows highly flexible settings for current and time grading making it compatible with all types of overcurrent protections.
Protection, instrumentation and metering functionality is accessible via data comms channel(s). A front USB port for local PC connection and rear electrical RS 485 port for remote connection are provided as standard, additional ports are available as options.
Additional Information:
Product Details:
| Minimum Order Quantity | 1 Piece |
| Brand | Siemens |
| Voltage | 220V /240V |
| Relay Type | Overcurrent relay |
| Mounting Type | Din Rail |
| Type | Industrial Relay |
| Model Name/Number | 7SR120 |
| Current | 1A TO 5A |
| Number Of Poles | Refer PDF document |
7SR12 Directional Over Current Relay, protection relay,siemens Overcurrent Relays
Siemens Reyrolle Numerical Relay
The exclusive range of Siemens Numerical Relays Provides the total protection requirements of distribution markets & Industrial Applications.Overcurrent Protection,Transformer Protection,Energy Automation & Smart Grid Solutions are the major aspect of Siemens Reyrolle Family.The portfolio incorporates numerous well known items e.g. Argus,Duobias,Solkor,Rho etc.
Motor & Generator protection,Capacitor bank protection,High Impedance Protection,Arc Fault Protection,Synchronising,Auxiliary Relays,Trip Relays & Timers and many more are the major applications of Reyrolle Protection Devices.
Detail Protection Functions
Supervision Functions
Control Functions
Monitoring Functions
Features
Additional Information:
Product Details:
| Model Name/Number | 7SR17 |
| Relay Type | Motor Protection Relay |
| Brand | Siemens |
| Voltage | 220-240V |
| Current | 1A-5A |
| Usage/Application | Industrial Relay |
| Mounting | Din rail / panel |
7SG17 relays provide thermal overload protection of motors or static plant for all in service conditions.
Features such as overcurrent and earth fault provide back-up protection for the motor and connections.
Relays have four current inputs and are housed in E6 or E8 cases. Integrated logic is provided to allow the optimal configuration of relay functionality with the relays analogue/RTD inputs and binary input/output circuits.
Protection and instrumentation functionality is accessible via the data comms channel - a fibre optic or RS485 port is provided on the rear of the relay.
Additional Information:
Product Details:
| Usage/Application | Arc Protection |
| Voltage | 220-240V |
| Current | 1A-5A |
| Brand | SIEMENS |
| Type | Voltage Relays |
| Model Name/Number | 7XG31 |
| Relay Type | Voltage Relay |
| Protection Functions | 1) 7XG3120 Arc Fault Monitor Relay, with 2 or 3 arc point sensor inputs 2) separate tripping- duty |
Arc fault protection is a relatively new technique employed for the fast clearance of arcing faults on Busbars & within metal clad switchgear & associated cable boxes. The arc is detected using an optical sensor & the signal input to a protection device which also monitors the load current on the system. Conventional current based protection techniques are at times challenged by the nature of arcing faults, and can result in slow protection clearance times. Slow protection clearance times increase the risk to nearby personnel and increase the degree of damage to plant and equipment. By employing an optical detection technique, Arc Fault Protection results in fast clearance of arcing faults.
When an arc fault start current is coincident with a signal from the optical sensor a trip command is output. An Arc trip only signal can be achieved within 10ms which can be considerably faster than that provided by a traditional IDMT overcurrent relay. This is because the onset of an arcing fault can occur at relatively low fault currents. Arguably the greatest risk of arc fault damage exists at the CB cable termination & in the CB chamber itself due to the slow clearance times of the IDMT feeder protection.
The ReyArc range of protection devices provide multiple arc fault protection schemes depending on your protection system requirements:
ReyArc Arc Protection range:
7XG3120 Arc Fault Monitor Detects Arc faults independently & in parallel with an overcurrent check relay.
7XG3123 ARC Fault Module - Designed to connect one or two optical arc fault sensors to a protection relay status input.
7XG3124 IEC61850 Arc Fault Monitor – Arc Fault detection using IEC-61850
7XG3126 Arc Fault Monitor with Integrated Three Phase Current Check
7XG3130 Optical ARC Fault Sensor
Additional Information:
Product Details:
| Usage/Application | Motor protection |
| Voltage | 220-240V |
| Current | 1A-5A |
| Brand | SIEMENS |
| Type | Industrial Relay |
| Mounting | Din rail / panel |
| Model Name/Number | 7PJ13 |
| Power Source | Electric |
The 7PJ13 Trip Circuit Supervision Relay is an electronic-circuit based relay. The relay is a member of Siemens Reyrolle protection devices product family. It is used to monitor and supervise the integrity of a circuit-breaker’s trip coil and other wiring circuits of low-voltage and medium-voltage networks.
Features
The 7PJ13 is connected with a circuit-breaker to monitor the trip circuit positions (make or break). The 7PJ13 generates a trip circuit failure alarm, either if the trip circuit supply is disconnected or if the trip circuit connection is changed to an open circuit. Trip circuit continuity is measured by supplying the supervision current of 0.7 mA to 1.5 mA and sensing the flow of current with two optocouplers. The circuit-breaker contact indicates the status of the relay whether the circuit-breaker is in a make position or a break position.
The features of the Trip Circuit Supervision Relay are:
Product Details:
| Usage/Application | Motor protection |
| Voltage | 220-240V |
| Current | 1A-5A |
| Brand | SIEMENS |
| Type | Industrial Relay |
| Mounting | Din rail / panel |
Additional Information:
Product Details:
| Brand | Siemens |
| Size | E2,E4 (xE) |
| Protection Functions | Self reset and Hand reset |
| Binary Inputs (max) | 8NO + 8NC |
| Binary Outputs (max) incl. Life contact | 8NO + 8NC |
| PSU Variants | DC 12-240/AC 110-240 |
The range comprises electro-mechanical relays for a range of auxiliary and tripping functions. Various combinations of coils, contacts, operation indicator flags can be specified. Options are also available for operate and reset modes. 7PG11 AR relays - general auxiliary functions – repeats, indications, scheme logic FR relays.
Features
Type AR relays are a range of electro-mechanical relays with up to 8 contacts and complying with IEC 61850. They can be supplied in most combinations of contact, flag and reset arrangements. The relays are identified by a series of numbers and letters which define important relay features. The following comments are provided as a guide to the various features of type AR relays.
Product Details:
| Minimum Order Quantity | 1 Piece |
| Usage/Application | protection,control and monitoring of overhead lines and underground cables |
| Voltage | 220-240V |
| Current | 1A-5A |
| Brand | SIEMENS |
| Type | Voltage Relays |
| Mounting | Din rail / panel |
| Relay Type | Voltage Relay |
| Mounting Type | Din Rail |
Our differential protection relay, Reyrolle7SR18, is a numeric three phase differential protection relay used to detect in zone phase and earth faults. This differential protection relay is applied to overhead line and underground cable circuits as well as shorter circuits such as interconnectors.
Reyrolle 7SR18 differential protection relays have integral back-up overcurrent/earth fault protection and intertripping channels.
Protection Relays (and associated CTs) are installed at each end of the protected circuit. The relays are connected together with a fully supervised fibre optic protection communications link.
Relays have four current inputs and are housed in E6 cases. Integrated logic is provided to allow the optimal configuration of relay protection functionality with the relay''''s analogue inputs and binary input/output circuits.
Protection and instrumentation functionality is accessible via the data comms channel - a front USB, RS485 and IEC 61850 (optional) rear ports.
Protection Functions
Supervision Functions
Control Functions
Monitoring functions
Features
Product Details:
| Brand | Siemens |
| Relay Type | Overload Relay |
| Voltage | 220/240 V |
| Type | Industrial Relay |
| Model Name/Number | 7SR54 |
| Current | DC |
The Reyrolle 5 is designed for the electricity networks of the future with enhanced communications and cybersecurity
while maintaining a user-friendly interface and easy product management.
The Reyrolle 7SR54 provides protection, control and monitoring for 2 and 3 winding transformers. All transformer vector groups and earthing connections are considered.
The Reyrolle 7SR54 device includes a wide range of protection-functions and IEC 61850 Ethernet communications as standard. To further minimize the product variants the power supply and the binary inputs cover the full operating range with configurable binary input thresholds.
The large LCD, tactile pushbuttons and programmable LEDs provide a user-friendly product interface and the relay
element is withdrawable for easy replacement.
Inputs and Outputs
8 CT + 16 BI + 8 BO
8 CT + 4 VT + 12 BI + 8 BO
8 CT + 4 VT + 37 BI + 18 BO
12 CT + 24 BI + 10 BO
12 CT + 4 VT + 35 BI + 16 BO
Communication
Standard front USB port (for configuration using Reydisp PC based software tool) rear RS485, 2 x RJ45 electrical ports or optional optical ethernet connections.
Housing Size
12 with drawable design.
Display
Backlit 128 x 128 LCD with text and graphical display capabilities suitable for single line mimic diagrams.
Product Details:
| Model Name/Number | 7SR51 |
| Brand | SIEMENS |
| Voltage | 220-240V |
| Usage/Application | Overcurrent and Feeder Protection |
| Mounting Type | Din Rail |
| Relay Type | Voltage Relay |
The Reyrolle 7SR511 overcurrent device includes a wide range of protection functions and IEC 61850 Ethernet communications as standard.
The Reyrolle 5 is designed for the electricity networks of the future with enhanced communications and cybersecurity
while maintaining a user-friendly interface and easy product management.
The Reyrolle 7SR511 overcurrent device includes a wide range of protection functions and IEC 61850 Ethernet communications as standard. To further minimize the product variants the power supply and the binary inputs cover the full operating range with configurable binary input thresholds.
The large LCD, tactile pushbuttons and programmable LEDs provide a user-friendly product interface and the relay element is withdrawable for easy replacement
Product Details:
| Minimum Order Quantity | 1 Piece |
| Model Name/Number | 7SR110 |
| Brand | Siemens |
| Voltage | 220V |
| Power Source | Electric |
| Relay Type | Voltage Relay |
| Mounting Type | Din Rail |
| Type | Industrial Relay |
| Display | 4 Small Display (lines) |
The 7SR11 series of relays provide overcurrent and earth fault protection. These relays are typically applied to provide the main protection on feeders and interconnectors and the back-up protection on items of plant such as transformers. On distribution system circuits overcurrent and earth fault protection is often the only protection installed.
The 7SR12 includes for directional control of the overcurrent and earth fault functionality and is typically installed where fault current can flow in either direction i.e. on interconnected systems.
The relay functionality allows highly flexible settings for current and time grading making it compatible with all types of overcurrent protections.
The relays are available in single and four pole variants housed in E4 cases with the IEC61850 protocol option housed in an E6 case. Integrated logic is provided to allow the optimal configuration of relay functionality with the relays analog inputs and binary input/output circuits.
Protection, instrumentation and metering functionality is accessible via data comms channel(s). A front USB port for local PC connection or rear electrical RS485 port for remote connection are provided.
Protection Functions
Supervision Functions
Control Functions
Monitoring Functions
Product Details:
| Model Name/Number | 7XG225 - 3RMLG |
| Dimensions | REFER BROCHURE PDF FOR SPECS |
| Brand | Siemens |
| Product Type | TEST BLOCK SYSTEM |
| Usage/Application | SUITABLE FOR APPLICATION ON A WIDE RANGE OF PROTECTION RELAY PANELS |
| Size | E2,E4 (xE) |
A range of 14 way and 28 way test blocks, the 14 way are housed in an Epsilon size E2 case, 28 way blocks are housed in an E4 case.
Features