ABB Tmax RC222 T4 User Manual

Sganciatore differenziale RC222-RC223 T4-T5
Release differenziale RC222-RC223 T4-T5
Auslöser differenziale RC222-RC223 T4-T5
Declencheur differenziale RC222-RC223 T4-T5
Relé differenziale RC222-RC223 T4-T5
DOC. N.° 1SDH000436R0507 - L2699
Tmax
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X 4
X 4
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ABB Tmax RC222 T4 Specifications

General

Brand	ABB
Model	Tmax RC222 T4
Category	Circuit breakers
Language	English

Summary

Component Legend and Definitions

SO (Pushbutton/Contact)

Pushbutton or contact for opening the circuit-breaker. Recommended twisted pair cable up to 250m.

S87/1 (Pre-alarm Signal Contact)

Pre-alarm electrical signalling contact of releasing device RC222-RC223.

S87/2 (Alarm Signal Contact)

Alarm electrical signalling contact of differential releasing device RC222-RC223.

S87/3 (Open Circuit Signal Contact)

Electrical signalling contact for open circuit-breaker due to differential release.

K87 (Differential Release Unit)

Definition of the RC222-RC223 differential release unit.

TI (Toroidal Current Transformer)

Toroidal current transformer used in the circuit.

SD (Power Supply Isolator)

Power supply isolator of the RC221-RC222-RC223 residual-current release.

XO1 (Opening Solenoid Connector)

Connector for the opening solenoid YO2.

YO2 (Opening Solenoid)

Opening solenoid of the RC221-RC222-RC223 residual-current release.