SPER 1C1

Overview

SPER 1C1 is an ABB Trip Circuit Supervision Relay designed for reliable monitoring of trip circuits in protection systems, ensuring dependable operation across a wide DC voltage range.

Specifications

• Voltage Range: 40–265 V DC

• Measuring Current: 1.5 mA

• Minimum Residual Voltage (Terminals 11–21): >40 V DC

• Typical Resistance:

• At 48 V DC: 1.2 kΩ / 4 W

• At 60 V DC: 5.6 kΩ / 4 W

• At 110 V DC: 22 kΩ / 4 W

• At 220 V DC: 28.8 kΩ / 4 W or 33 kΩ / 4 W