ABB SPER 1C1-AA REV.J | Trip Circuit Supervision Relay

Overview

The ABB SPER 1C1-AA is a trip circuit supervision relay designed to monitor circuit-breaker and disconnector control circuits. It provides continuous supervision, detecting issues like contact failures, high transition resistance, and disappearing control voltage.

Key Features

- Continuous monitoring of critical control circuits

Preset operate time to prevent unwanted alarm signals
Visual indication of relay operation with LED indicator
Output relay for fault signals
Detects bad contacts, contact welding, and auxiliary voltage failures

Design and Function

The SPER 1C1 relay contains a constant current generator, opto-isolator, triggering circuit, and time circuit. It ensures reliable operation with a preset time delay of 3 seconds. The relay operates by detecting faults in the monitored circuit, and it drops the output relay when a fault is detected or when the auxiliary supply is lost.

Technical Specifications

Monitored Circuit Voltage: 40–265 V DC
Measuring Current: 1.5 mA
Minimum Residual Voltage: >40 V DC
Typical Resistance (for SPER 1C1, SPE-ZR3): 48 V DC – 1.2 kΩ/4W
Operate Delay: 3 seconds
Reset Time: 1 second
Current Drain: 7 mA
Output Relay Rated Voltage: 250 V AC/DC
Dielectric Test Voltage (IEC 255-5): 2 kV, 50 Hz, 1 min
Impulse Test Voltage (IEC 255-5): 5 kV, 1.2/50 µs, 0.5 J
Disturbance Tests (IEC 255-5): 2.5 kV, 1 MHz
Spark Interference (SS 436-15-03): 4–8 kV

Weight and Dimensions

Product Net Weight: 0.2 kg
Dimensions (L x W x H): 93 mm x 93 mm x 48 mm

Environmental Compliance

The SPER 1C1 is exempt from the WEEE scope and complies with environmental standards. Handle according to local disposal regulations.

Ordering Information

Order Number: RS 485 002-AA (SPER 1C1, Uaux = 40–265 V DC)
Customs Tariff Number: 85389091
Minimum Order Quantity: 1 piece
Selling Unit: Piece

Applications

The SPER 1C1 relay is used for monitoring circuit-breaker and disconnector control circuits in power electrical installations. It is an essential part of ABB’s distribution automation systems, providing reliable fault detection and signaling.