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Numerical Relays SIEMENS

Leading Distributor / Channel Partner of siemens 7sr10 reyrolle overcurrent protection numerical relay, siemens 7sr1003 over current protection numerical relay, siemens 7sr1004 over current protection numerical relays, siemens 7sr158 argus voltage and frequency protection relay, 7sr45 self powered overcurrent protection relay and siemens siprotec 7sj66 relay from Navi Mumbai.

Siemens 7SR10 Reyrolle Overcurrent Protection Numerical Relay

Siemens 7SR10 Reyrolle Overcurrent Protection Numerical Relay
  • Siemens 7SR10 Reyrolle Overcurrent Protection Numerical Relay
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Product Details:

Model Name/Number7SR10
BrandSIEMENS
Voltage220-240V
Usage/ApplicationOvercurrent Protection
TypeIndustrial relays
Front connection portUSB
Rear portRS485

SIEMENS 7SR10 REYROLLE OVERCURRENT PROTECTION NUMERICAL RELAYSIEMENS OVERCURRENT PROTECTION 7SR10 NUMERICAL RELAY 

The Reyrolle 7SR10 Argus overcurrent and earth fault relay is a numerical overcurrent protection relay intended as a low-cost solution for distribution and industrial applications.The Reyrolle 7SR10 Argus overcurrent and earth fault relay is developed using the latest generation of hardware technology and is available in multiple variants depending on the power supply, Binary input/binary output configuration and data communication facility.Housed in a 4U high, size 4 non-draw-out case and these relays provide protection, monitoring, instrumentation, and metering 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 RS485 (optional) port for remote connection.

  • It has Universal power supply suitable for both AC and DC. 
  • 1A and 5A CT selectable at site. Basic communication protocol like MODBUS RTU and IEC 103 available and they are also site selectable. Relay are equipped with sufficient number of DI/DO i.e. upto 6 DI and 6 DO. 
  • 7SR1003 is designed for current based protection and 7SR1004 is available with additional voltage inputs to take care of voltage based protections. 7SR1005 is designed for motor protection application.???
PROTECTION FUNCTIONS
  • Broken Conductor, Load Unbalance (46BC)
  • Negative Phase Sequence Overcurrent (46NPS)
  • Thermal Overload (49)
  • Instantaneous Overcurrent Protection (50)
  • Instantaneous Earth Fault (50N/G)
  • Time Delayed Overcurrent Protection (51)
  • Time Delayed Derived/Measured Earth Fault Protection (51N/G)
  • Cold Load Pickup (51C)
  • Circuit Breaker Fail (50BF)
  • Time Delayed Sensitive Earth Fault Protection (51SEF)
  • Inrush Restraint (81HBL2)
  • Instantaneous Sensitive Earth Fault (50SEF)
SUPERVISION FUNCTIONS
  • Trip Circuit Supervision (74TC)
  • Total Harmonic Distortion Supervision (81THD)
CONTROL FUNCTIONS
  • Lockout (86)
  • CB Control
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Siemens 7SR1003 Over Current Protection Numerical Relay

Siemens 7SR1003 Over Current Protection Numerical Relay
  • Siemens 7SR1003 Over Current Protection Numerical Relay
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Product Details:

BrandSiemens
Relay TypeOvercurrent
TypeIndustrial Relay
Model Name/Number7SR1003
Display4 Small Display (lines)
Output Contact6 Binary Inputs (max) and 6 Binary Outputs (max) incl. Life contact
SizeE4 (xE)
Protection Functions"27/59,32,32S,37/37G/37SEF,46BC,46NPS,47NPS,49,50,50BF,50G/N/SEF,51,51c,51G/N/SEF,51
Supervision functions60CTS,60VTS,74T/CCS,81THD
Control Functions79,86,CB
Current Inputs (max)4
Push Buttons7
LEDs (max)10
Pluggable terminal blocksYes
PSU VariantsDC 24-60;AC/DC 60-240
Front User InterfaceYes
IEC 60870-5-103Yes
MODBUS RTU SLAVEYes
DNP3 serialYes
Time SynchronisationYes

The Reyrolle 7SR10 Argus overcurrent and earth fault relay is a numerical overcurrent protection relay intended as a low-cost solution for distribution and industrial applications.The Reyrolle 7SR10 Argus overcurrent and earth fault relay is developed using the latest generation of hardware technology and is available in multiple variants depending on the power supply, Binary input/binary output configuration and data communication facility.Housed in a 4U high, size 4 non-draw-out case and these relays provide protection, monitoring, instrumentation, and metering 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 RS485 (optional) port for remote connection.

  • It has Universal power supply suitable for both AC and DC. 
  • 1A and 5A CT selectable at site. Basic communication protocol like MODBUS RTU and IEC 103 available and they are also site selectable. Relay are equipped with sufficient number of DI/DO i.e. upto 6 DI and 6 DO. 
  • 7SR1003 is designed for current based protection and 7SR1004 is available with additional voltage inputs to take care of voltage based protections. 7SR1005 is designed for motor protection application.

7SR1003: Current based Protection Relay

·          Argus Non-directional overcurrent relay

·          Size 4 molded casing,

·          4 CT, 10 LEDs, 6 binary inputs/ 6 binary outputs

·          Measuring input: 1/5A, 50/60 Hz

·          Auxiliary voltage: 60 to 240 V AC/DC,

·          binary input tresh. 44 V AC/DC

·          Standard version - no cover

·          Communication: Front port: USB and rear: RS485 supporting IEC 60870-5-103 or Modbus RTU or DNP 3.0

·          Front fascia: w. breaker control pushbuttons

·         Protection function: standard version

PROTECTION FUNCTIONS

  • Broken Conductor, Load Unbalance (46BC)
  • Negative Phase Sequence Overcurrent (46NPS)
  • Thermal Overload (49)
  • Instantaneous Overcurrent Protection (50)
  • Instantaneous Earth Fault (50N/G)
  • Time Delayed Overcurrent Protection (51)
  • Time Delayed Derived/Measured Earth Fault Protection (51N/G)
  • Cold Load Pickup (51C)
  • Circuit Breaker Fail (50BF)
  • Time Delayed Sensitive Earth Fault Protection (51SEF)
  • Inrush Restraint (81HBL2)
  • Instantaneous Sensitive Earth Fault (50SEF)
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Siemens 7SR1004 Over Current Protection Numerical Relays

Siemens 7SR1004 Over Current Protection Numerical Relays
  • Siemens 7SR1004 Over Current Protection Numerical Relays
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Product Details:

Display4 Small Display (lines)
Output Contact6 Binary Inputs (max) and 6 Binary Outputs (max) incl. Life contact
SizeE4 (xE)
Protection Functions27/59,32,32S,37/37G/37SEF,46BC,46NPS,47NPS,49,50,50BF,50G/N/SEF,51,51c,51G/N/SEF,51
Supervision functions60CTS,60VTS,74T/CCS,81THD
Control Functions79,86,CB
Current Inputs (max)4
Push Buttons7
LEDs (max)10
Pluggable terminal blocksYes
PSU VariantsDC 24-60;AC/DC 60-240
Front User InterfaceYes
IEC 60870-5-103Yes
MODBUS RTU SLAVEYes
DNP3 serialYes
Time SynchronisationYes

SIEMENS 7SR10 REYROLLE NUMERICAL RELAYSSIEMENS OVERCURRENT PROTECTION 7SR10 NUMERICAL RELAY DEALER

The Reyrolle 7SR10 Argus overcurrent and earth fault relay is a numerical overcurrent protection relay intended as a low-cost solution for distribution and industrial applications.The Reyrolle 7SR10 Argus overcurrent and earth fault relay is developed using the latest generation of hardware technology and is available in multiple variants depending on the power supply, Binary input/binary output configuration and data communication facility.Housed in a 4U high, size 4 non-draw-out case and these relays provide protection, monitoring, instrumentation, and metering 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 RS485 (optional) port for remote connection.

  • It has Universal power supply suitable for both AC and DC. 
  • 1A and 5A CT selectable at site. Basic communication protocol like MODBUS RTU and IEC 103 available and they are also site selectable. Relay are equipped with sufficient number of DI/DO i.e. upto 6 DI and 6 DO. 
  • 7SR1003 is designed for current based protection and 7SR1004 is available with additional voltage inputs to take care of voltage based protections. 7SR1005 is designed for motor protection application.
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Siemens 7SR158 Argus Voltage And Frequency Protection Relay

Siemens 7SR158 Argus Voltage And Frequency Protection Relay
  • Siemens 7SR158 Argus Voltage And Frequency Protection Relay
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Product Details:

Model Name/Number7SR158
Display4 Small Display (lines)
Output Contact6 Binary Inputs (max) and 8 Binary Outputs (max) incl. Life contact
SizeE4,E6 (xE)
Protection Functions27/59,47,59N,78,81,81R
Supervision functions74T/CCS
Control Functions86
Push Buttons5
LEDs (max)10
PSU VariantsDC 24-60;DC 88-250 / 115V
Front User InterfaceYes
IEC 60870-5-103Yes
MODBUS RTU SLAVEYes
RSTP (Ethernet ring redundancy)optional (additional price)
PRP V1 (Parallel Redundancy Protocol)optional (additional price)
HSR (High available Seamless Ring configuration)optional (additional price)
Further Ethernet protocols on Ethernet modulesoptional (additional price)
Time SynchronisationYes

SIEMENS 7SR158 ARGUS VOLTAGE AND FREQUENCY PROTECTION  RELAY

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.

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7SR45 Self Powered Overcurrent Protection Relay

7SR45 Self Powered Overcurrent Protection Relay
  • 7SR45 Self Powered Overcurrent Protection Relay
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Product Details:

Usage/ApplicationOVERCURRENT PROTECTION
Voltage220-240V
Current1A-5A
BrandSIEMENS
TypeVoltage Relays
Relay TypeVoltage Relay
Display2 Small Display (lines)
SizeE4 (xE)
Protection Functions50,50N/G,51,51N/G,50LC/SOTF
Supervision functionsCC
Binary Inputs (max)2/4 (1)
Binary Outputs (max) incl. Life contact2/4 (1)
Current Inputs (max)4
Push Buttons7
LEDs (max)9
Front User InterfaceYes

FunctionsProtection Functions
  • Instantaneous Overcurrent Protection (50)

  • Instantaneous Derived Earth Fault (50N)

  • Instantaneous Measured Earth Fault (50G)

  • Time Delayed Overcurrent (51)

  • Time Delayed Derived Earth Fault (51N)

  • Time Delayed Measured Earth Fault (51G)

  • Line Check / Switch On To Fault (SOTF)

  • Inrush Restraint

Features
  • Self Powered

  • 10 Fault Records

  • 100 Event Records

  • Password Protection

  • Self Monitoring

  • Overcurrent Protection Functions (Instantaneous and Delayed)

  • Relay Integration via Reydisp Evolution PC Software

  • Sensitivity of 20% Nominal Current

Hardware
  • 4 Current Transformer with 1A or 5A Inputs

  • 2 Binary Inputs

  • 2 Latched Binary Outputs, 1 changeover and 1 normally open

  • 1 Pulsed Output

User Interface
  • 16 Character x 2 Line Backlit LCD

  • Menu Navigation Keys

  • 9 Predetermined LED’s for Easy Use

  • Front USB Interface

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Siemens Siprotec 7SJ66 Relay

Siemens Siprotec 7SJ66 Relay
  • Siemens Siprotec 7SJ66 Relay
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Product Details:

Model Name/Number7SJ66
Service LocationService Centre
BrandSIEMENS
Customer/Business TypeCustomer Requirement
Voltage220-240V
Usage/ApplicationOvercurrent Protection
Current4 Current Inputs (max)
Voltage Typeon
Display8 Small Display (lines)
Output Contact36 Binary Inputs (max) and 24 Binary Outputs (max) incl. Life contact
Size240x128 Large,graphical Display (Pixel)
Protection Functions50,50N,50,50N,51,51V,51N,67,67N,67Ns/50Ns,59N/64,67Ns,87N,50BF,79M,25,46,47,49,48,51M,14,66/86
Case (x19'')1/3; 1/2
Push Buttons4
LEDs (max)16
PSU Variants110 to 250 V DC,115 to 230 V AC
Front User InterfaceYes
IEC 60870-5-103optional (additional price)
MODBUS TCPoptional (additional price)
DIGSIDIGSI (additional price)
IEC 61850-8-1optional (additional price)
RTD-unit connectionoptional (additional price)
Time SynchronisationYes

Control functions/programmable logic
  • Commands for control of CB and of isolators

  • Graphical visualization of switch positions

  • Control via keyboard, binary inputs, DIGSI 4 or SCADA system

  • User-defined logic with CFC (e.g. interlocking)

Monitoring functions
  • Operational measured values V, I, f

  • Energy metering values Wp,Wq

  • Circuit-breaker wear monitoring

  • Slave pointer

  • Trip circuit supervision

  • Fuse failure monitor

  • 8 oscillographic fault records

  • Motor statistics

Communication interfaces
  • System interface protocols: IEC 60870-5-103, IEC 61850, Modbus RTU, DNP3

  • Electrical and optical interface

  • RSTP (Redundancy Protocol for Ethernet)

  • Service interface for DIGSI 4 or RTD-Box

  • Front USB interface for DIGSI 4

  • Time synchronization via IRIG B, DCF77

Hardware
  • Spring-type terminals

  • 4 current transformers

  • 4 voltage transformers

  • 16/22/36 binary inputs

  • 7/10/23 output relays

  • Graphic or 8 line display

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  • Item Code: 7SJ66
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Siprotec 7UT613 Transformer Differential Protection Relay - Automation Device

Siprotec 7UT613 Transformer Differential Protection Relay - Automation Device
  • Siprotec 7UT613 Transformer Differential Protection Relay - Automation Device
  • Siprotec 7UT613 Transformer Differential Protection Relay - Automation Device
  • Siprotec 7UT613 Transformer Differential Protection Relay - Automation Device
  • Siprotec 7UT613 Transformer Differential Protection Relay - Automation Device
  • Siprotec 7UT613 Transformer Differential Protection Relay - Automation Device
  • Siprotec 7UT613 Transformer Differential Protection Relay - Automation Device
  • Siprotec 7UT613 Transformer Differential Protection Relay - Automation Device
  • Siprotec 7UT613 Transformer Differential Protection Relay - Automation Device
  • Siprotec 7UT613 Transformer Differential Protection Relay - Automation Device
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Product Details:

BrandSiemens
Relay TypeOverload Relay
VoltageRefer PDF document
Voltage Typeon
TypeIndustrial Relay
Model Name/NumberSiprotec 7UT613 Transformer Differential Protection Relay - Automation Device
Current11 Current Inputs (max)
MaterialRefer Document
Display4 Small Display (lines)
Output Contact5 Binary Inputs (max) and 9 Binary Outputs (max) incl. Life contact
Protection Functions87T/G/M/L,87 N,50/51,50/51N,50/51G,46,49,49,24,59,27,81,32R,32F,60FL,50 BF,38,86,74 TC,27,32,47,50
Case (x19'')1/2
Push Buttons4
LEDs (max)16
PSU VariantsDC 24-48; DC 60-250 /AC 115-230
Front User InterfaceYes
IEC 60870-5-103optional (additional price)
Profibus FMS/DP, Slaveoptional (additional price)
MODBUS RTU SLAVEoptional (additional price)
PROFINET I/Ooptional (additional price)
DNP3 serialoptional (additional price)
DIGSIDIGSI (additional price)
IEC 61850-8-1optional (additional price)
RTD-unit connectionoptional (additional price)
20 mA unit connectionoptional (additional price)
RSTP (Ethernet ring redundancy)optional (additional price)
PRP V1 (Parallel Redundancy Protocol)optional (additional price)
HSR (High available Seamless Ring configuration)optional (additional price)
Further Ethernet protocols on Ethernet modulesoptional (additional price)
Time SynchronisationYes

Transformer differential protection

SIPROTEC 7UT613

The SIPROTEC 7UT613 differential protection relays are used for fast and selective fault clearing of short-circuits in transformers of all voltage levels and also in rotating electric machines like motors and generators, for short lines and busbars.

Features

The specific application can be chosen by parameterization. In this way an optimal adaptation of the relay to the protected object can be achieved.

 

In addition to the differential function, a backup overcurrent protection for 1 winding/ star point is integrated in the relay. Optionally, a low or high-impedance restricted earth-fault protection, a negative-sequence protection and a breaker failure protection can be used. 7UT613 features 4 voltage inputs. With this option an overvoltage and undervoltage protection is available as well as frequency protection, reverse / forward power protection, fuse failure monitor and overexcitation protection. With external temperature monitoring boxes (thermo-boxes) temperatures can be measured and monitored in the relay. Therefore, complete thermal monitoring of a transformer is possible, e.g. hot-spot calculation of the oil temperature.

7UT613 features full coverage of applications without external relays by the option of multiple protection functions e.g. overcurrent protection is available for each winding or measurement location of a transformer. Other functions are available twice: ground-fault differential protection, breaker failure protection and overload protection. Furthermore, up to 12 user-defined (flxible) protection functions may be activated by the customer with the choice of measured voltages, currents, power and frequency as input variables. The relays provide easy-to-use local control and automation functions.

The integrated programmable logic (CFC) allows the users to implement their own functions, e.g. for the automation of switchgear (interlocking). User-defined messages can be generated as well. The flexible communication interfaces are open for modem communication architectures with control system.

Hardware

  • 12 current transformers, 1 IEE
  • 4 voltage transformers
  • 5 binary inputs
  • 8 binary outputs
  • Text display
  • Surface-mounting or flush-mounting housing

    Functions

    Function overview

    • Differential protection for 2- up to 3-winding transformers (3-/1-phase)
    • Differential protection for motors and generators
    • Differential protection for short 2 up to 3 terminal lines
    • Differential protection for busbars up to 9 feeders (phase-segregated or with summation CT)

    Protection functions

    • Differential protection with phase-segregated measurement
    • Sensitive measuring for low-fault currents
    • Fast tripping for high-fault currents
    • Restraint against inrush of transformer
    • Phase-/earth overcurrent protection
    • Overload protection with or without temperature measurement
    • Negative-sequence protection
    • Breaker failure protection
    • Low-or high-impedance restricted earth fault (REF)
    • Voltage protection functions

    Control functions

    • Commands for control of c.b. and isolators
    • Control via keyboard, binary inputs, DIGSI 4 or SCADA system
    • User-defined logic with CFC

    Monitoring functions

    • Self-supervision of the relay
    • Trip circuit supervision
    • Oscillographic fault recording
    • Permanent differential and restraint current measurement, extensive scope of operational values

     

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    Additional Information:

    • Item Code: SiemensSiprotec7UT613
    • Production Capacity: Over 50000 per quarter
    • Delivery Time: 4-5 business days
    • Packaging Details: As per client's requirement
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    Siprotec 7ut63 Differential Transformer Overload Protection Relay

    Siprotec 7ut63 Differential Transformer Overload Protection Relay
    • Siprotec 7ut63 Differential Transformer Overload Protection Relay
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    Product Details:

    BrandSiemens
    Voltage220V-240V
    Current14 Current Inputs (max)
    Power SourceElectric
    Relay TypeDifferential Transformer Overload Protection
    Mounting TypeDin Rail
    Voltage Typeon
    Display240x120 Large,graphical Display (Pixel)
    Output Contact29 Binary Inputs (max) and 25 Binary Outputs (max) incl. Life contact
    Protection Functions87T/G/M/L,87 N,50/51,50/51N,50/51G,46,49,49,24,59,27,81,32R,32F,60FL,50 BF,38,86,74 TC,27,32,47,50
    Case (x19'')1/1
    Push Buttons4
    LEDs (max)16
    PSU VariantsDC 24-48; DC 60-250 /AC 115-230
    Front User InterfaceYes
    IEC 60870-5-103optional (additional price)
    Profibus FMS/DP, Slaveoptional (additional price)
    MODBUS RTU SLAVEoptional (additional price)
    PROFINET I/Ooptional (additional price)
    DNP3 serialoptional (additional price)
    DIGSIDIGSI (additional price)
    IEC 61850-8-1optional (additional price)
    RTD-unit connectionoptional (additional price)
    20 mA unit connectionoptional (additional price)
    RSTP (Ethernet ring redundancy)optional (additional price)
    PRP V1 (Parallel Redundancy Protocol)optional (additional price)
    HSR (High available Seamless Ring configuration)optional (additional price)
    Further Ethernet protocols on Ethernet modulesoptional (additional price)
    Time SynchronisationYes

    • Differential protection for 2- up to 3-winding transformers up to 5 ends (3-/1-phase)

    • Differential protection for motors and generators

    • Differential protection for short 2 up to 5 terminal lines

    • Differential protection for busbars up to 12 feeders (phase-segregated or with summation CT)

    Protection functions

    • Differential protection with phase-segregated measurement

    • Sensitive measuring for low-fault currents

    • Fast tripping for high-fault currents

    • Restraint against inrush of transformer

    • Phase /ground overcurrent protection

    • Overload protection with or without temperature measurement

    • Negative-sequence protection

    • Breaker failure protection

    • Low/high-impedance restricted ground fault (REF)

    • Voltage protection functions

    Control functions

    • Commands for control of circuit-breakers and isolators

    • 7UT63x: Graphic display shows position of switching elements, local/remote switching by key-operated switch

    • Control via keyboard, binary inputs, DIGSI 4 or SCADA system

    • User-defined logic with CFC

    Monitoring functions

    • Self-supervision of the relay

    • Trip circuit supervision

    • Oscillographic fault recording

    • Permanent differential and restraint current measurement, extensive scope of operational values

    Communication interfaces

    • PC front port for setting with DIGSI 4

    • System interface IEC 61850 Ethernet - IEC 60870-5-103 protocol, - PROFIBUS-FMS/-DP, MODBUS or DNP 3.0

    • Service interface for DIGSI 4 (modem)/ temperature monitoring (thermo-box)

    • Time synchronization via IRIG-B/DCF 77

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    Additional Information:

    • Item Code: 7UT63
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    Siemens 7sr10 Overcurrent Numerical Relay

    Siemens 7sr10 Overcurrent Numerical Relay
    • Siemens 7sr10 Overcurrent Numerical Relay
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    Product Details:

    Usage/ApplicationOvercurrent Protection Relay
    Voltage220-240V
    Current1A-5A
    BrandSIEMENS
    TypeVoltage Relays
    Voltage Typeon
    Display4 Small Display (lines)
    SizeE4 (xE)
    Protection Functions"27/59,32,32S,37/37G/37SEF,46BC,46NPS,47NPS,49,50,50BF,50G/N/SEF,51,51c,51G/N/SEF,51
    Supervision functions60CTS,60VTS,74T/CCS,81THD
    Control Functions79,86,CB
    Binary Inputs (max)4
    Binary Outputs (max) incl. Life contact6
    Current Inputs (max)4
    Push Buttons7
    LEDs (max)10
    Pluggable terminal blocksYes
    PSU VariantsDC 24-60;AC/DC 60-240
    Front User InterfaceYes
    IEC 60870-5-103Yes
    MODBUS RTU SLAVEYes
    DNP3 serialYes
    Time SynchronisationYes

    We are the foremost firm of Overcurrent Relay. Our products are developed under the supervision of industry certified experts. In addition, we present this product at nominal costs.

     

    Features:

     

    • Affordable rates

    • Durability

    • Low maintenance

    • Easy installation

    • Top performance

    • Longer working life


    The 7SR10 overcurrent and earth fault relay is developed by using the latest generation of hardware technology and is available in two variants depending on Binary IO configuration and data communication facility. 7SR10 is a member of Siemens Reyrolle protection devices Argus product family. The 7SR10 overcurrent and earth fault relay is housed in a 4U high, size E4 non draw-out case and these relays provide protection, monitoring, instrumentation, and metering 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 (optional) port for remote connection.
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    • Item Code: 7SR10
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