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Relays

Product catalog summary

Overview
This document provides comprehensive technical specifications and operational guidelines for various relays manufactured by Sigma Elektrik. The relays include 3-phase voltage relays, asymmetric loop time relays, star/delta delayed time relays, level control relays, 3-phase current relays, single function time relays, and multi-function time relays.

3-Phase Voltage Relay SRV8-03 / SRV8-05
General Features: Designed for controlling moving equipment and protecting against reverse running and phase failure, these relays feature True RMS voltage measurement, 8-level voltage setting, and LED status indicators. They are DIN rail mountable.
Technical Parameters: They monitor 3-phase voltage within 220-460V and 45-65Hz frequency, with adjustable thresholds for overvoltage, undervoltage, and asymmetry, and a hysteresis of 2%.

Asymmetric Loop Time Relay SRT8-S
General Features: Suitable for applications requiring asymmetric timing cycles, with adjustable time settings and LED indicators.
Technical Parameters: Supports a wide range of voltage and timing settings.

Star/Delta Delayed Time Relay SRT8-ST
General Features: Used for star/delta motor starting applications to reduce inrush current.
Technical Parameters: Includes adjustable delay settings for industrial applications.

Level Control Relay SRL8
General Features: Monitors and controls liquid levels with adjustable sensitivity.
Technical Parameters: Robust design suitable for various environmental conditions.

3-Phase Current Relay SRV8-01
General Features: Monitors 3-phase current, providing protection against phase loss and imbalance.
Technical Parameters: Offers precise current monitoring with adjustable settings.

Single Function Time Relay SRT8-A&B
General Features: Provides single-function timing capabilities with adjustable settings.
Technical Parameters: Designed for precise timing control applications.

Multi-Function Time Relay SRT8-M
General Features: Offers multiple timing functions for complex control systems.
Technical Parameters: Supports a wide range of timing settings and operational modes.

Phase Failure and LED Indicators
Describes a phase failure scenario where the function LED does not signal. If the device operates and the key position changes, all LEDs flash, but the chosen voltage continues to function normally.

Dimensions and Connection Diagrams
Includes dimensions and electrical connection diagrams for various relay models, such as SRV8-03 and SRT8-S.

General Standards and Installation
All relays conform to IEC/EN 61812-1 and IEC/EN61010-1 standards, with protection degrees of IP40 for the front panel and IP20 for terminals. Suitable for any operating position with a pollution degree of 2.

Relay Functions

Temporal Loop (Function D): Relay contacts change state upon application of input voltage, initiating a time delay cycle.
Off Delay (Function E): Requires continuous input voltage; relay contacts change state when the trigger switch is closed.
Latching Relay (Function I): Output state changes with each closure of the trigger switch.
Pulse Generator (Function J): Delivers a single output pulse upon application of input voltage.

Technical Parameters

Voltage Range: AC/DC 12-240V (50-60Hz)
Rated Power: AC 0.7-3VA/DC 0.5-1.7W
Time Ranges: 0.1 s to 1 day
Output: 1×SPDT, 16A / AC1, 250 VAC / 24 VDC
Mechanical Life: 10 million operations
Electrical Life (AC1): 1 million operations
Operating Temperature: -20℃ to +55℃
Protection Degree: IP40 for front panel, IP20 for terminals

Installation and Standards

Installation: DIN rail EN/IEC 60715
Standards Compliance: IEC/EN 61812-1, IEC/EN61010-1

Catalog excerpts

RELAYS Relés

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Relays Relés Content Relé De Voltaje 3 Fases SRV8-03 / SRV8-05 . . . . . . . . 296 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Panel Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Technical Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Function Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dimensions (mm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Connection Diagram . . . . . . . . . . . . . . . . . . . . ....

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Relays Reles © 3-Phase Voltage Relay SRV8-03 / SRV8-05 Model and Connotation Rele De Voltaje 3 Fases SRV8-03 / SRV8-05 Modelo y Asociacion General Rated control supply voltage Tension de alimentacion de control declarada M460: 220-230-240-380-400-415-440-460 VA C(P-P) Function mode: table 1 Modo de funcionamiento: tabla 1 Applications • Control for connection of moving equipment (site equipment, agricultural equipent, refrigerated trucks). • Control for protection of persons and equipment against the consequences of reverse running. • Normal/emergency power supply switching. • Protection...

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Relays di> RelesTechnical Parameters Parametros Tecnicos Technical parameters

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Relays Relés Function Diagram Phase failure and phase sequence function diagram Diagrama de funciones de serie de fases y fallo de fase In case of phase fault at power supply terminals (M460: L1 and L2, M265: L1 and N), Function LED shows no indication. If the Unswitch position is changed while the device is operating, all the LEDs ﬂash, but the product continues to operate normally with the voltage selected at the time of energisation preceding the change of position.The LED’s return to their normal state if the switch is returned to the original position selected prior to the last energisation....

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Asymmetric Loop Time Relay SRT8-S Rele Temporizador De Ciclo Asimetrico SRT8-S General Vista General Model and Association Modelo y Asociacion SRT8 Rated control supply voltage Tension de alimentacion de control declarada A230:AC230V W240:AC/DC12V-240V Applications • It is used for regular room ventilation, cyclic dehumidifi cation, light control, circulating pumps, noon signs, etc. Aplicaciones • Se utiliza para airear las habitaciones, extraer humedad de forma periodica, controlar la iluminacion, bombas de circula-cion y en carteles y lugares similares. Function Characteristics • 1 time Function...

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Relays Reles © Dimensions (mm) Dimensiones (mm) Technical Parameters Parametros Tecnicos Technical parameters

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Relays Relés Star/Delta Delayed Time Relay SRT8-ST Relé De Estrella/Triángulo Con Retardo SRT8-ST ST / Rated control supply voltage Tensión de alimentación de control declarada Vista General Delay ON star /delta Ajuste de retardo estrella/triángulo SRT8 series Series SRT8 Output indication (red) Indicador de salida (rojo) Time range setting Ajuste de periodo de tiempo Time setting Ajuste de tiempo Deﬁnido para motores estrella / delta con retardo Time t1 (star) : time scale 0.1 s - 10 min devided into 4 time ranges rough time setting by rotary switch Time t2 (delay) : time scale 0.1 s - 1 s time...

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302 Relays Reles © Dimensions (mm) Dimensiones (mm) Technical Parameters Parametros Tecnicos Technical Parameters Technical Parameters

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Relays Relés Level Control Relay SRL8 Relé De Control De Nivel SRL8 General Panel Diagram Vista General Supply indication (green) Indicador de alimentación (verde) Output indication (red) Indicador de salida (rojo) Function Diagram Designed for monitoring level in wellss, basins, reservoirs, tanks... Diseñado para monitorear el nivel de pozos, piscinas, depósitos y tanques de agua. In one device you can choose the following conﬁgurations: 2 level of control modes Choice of function PUMP UP, PUMP DOWN. Adjustable time delay on the output (0.1 - 10s). Sensitivity adjustable by a potentiometer (5-100kΩ)....

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Sigma^^elektrikDimensions (mm) Dimensiones (mm) Technical Parameters Parametros Tecnicos Technical Parameters

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Relays di> Reles 3-Phase Current Relay SRV8-01 Rele De Corriente Trifasica SRV8-01 General Vista General Panel Diagram Diagrama De Panel Supply indication (green) Indicador de alimentation (verde) Output indication (red) Indicador de salida (rojo) Operating function selector Selector de funcion de funcionamiento Voltage threshold setting Ajuste de umbral de tension Hysteresis setting Ajuste de histeresis Time delay setting Ajuste de tiempo de retardo Wrong Setting Of SRV8-01 Applications • Protect electrical equipment and motors from overvoltage and undervoltage. Aplicaciones • Protege a los...

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Relays Reles © • Overvoltage locking mode • Modo bloqueado de alta tension • Undervoltage non-locking mode • Modo desbloqueado de baja tension • Undervoltage locking mode • Modo bloqueado de baja tension Technical Parameters Parametros Tecnicos Technical Parameters

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Relays di> Reles Single Function Time Relay SRT8-A&B Rele De Temporizacion De Una Sola Funcion SRT8-A&B Panel Diagram Diagrama De Panel Vista General Function Diagram Diagrama De Funcion Applications • Suitable for applications where function and time requirements are know. • Time switch, possible to be used f or pump delay time after switching heating off, switching of fans. Aplicaciones • Es adecuado para aplicaciones conocidas de los requerimien-tos de funcion y tiempo. • Periodo de desvlo de la bomba despues de apagar el bloqueo temporal, el calentamiento y los ventiladores Function Characteristics...

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Relays Reles © It is possible to connect load between S-A2 (e.g contactor, control of light or any other device, with out disturbing a correct function o f relay (load is energized while the switch is ON.) Es posible conectar una cargo entre S-12. (Por ej: contactor, control de iluminacion o cualquier otro dispositivo distinto, sin estropear el funcionamiento del rele (cuando la llave esta abierta la carga esta energizada) Dimensions (mm) Dimensiones (mm) Technical Parameters Parametros Tecnicos

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