ABB Tmax RC221 User Manual

Tmax
DOC. N.° RH0011502 - L2699
Sganciatore differenziale RC221 RC222.
RC221 RC222 Residual-current release.
Fehlerstromausloser RC221 RC222.
Dèclencheur diffèrentel RC221 RC222.
Relè differencial RC221 RC222.
4
T3 IV
1
1
1-
-
1
3
T3 III
1
1
1
-
-
-
T2 IV
1
1
-
-
1
-
T2 III
1
1
-
-
-
-
T1 IV
1
1
-
-
1
-
T1 III
1
1
-
1
-
--43-
2
2
2
2
2
2
2
2
2
2
2
2

ABB Tmax RC221 Specifications

General

Brand	ABB
Model	Tmax RC221
Category	Circuit breakers
Language	English

Summary

Tmax Product Identification

Residual-Current Release Overview

Summarizes product names and types (RC221, RC222) in multiple languages.

RC221/RC222 Mounting Dimensions

RC221/RC222 Assembly Steps

Model-Specific Installation Notes

Details compatibility and installation for specific model series like T2 and T2-T3.

Installation Procedures and Torque

Assembly Verification and Torque Application

Illustrates assembly checks, OK/NO indicators, and torque values for installation.

Further RC221/RC222 Installation

Component Integration and Finalization

Shows integration of components and final electrical connection steps.

Torque Specifications and Final Assembly

Terminal Torque Application

Details required torque values for terminal connections using a torque table.

Insulation Testing Procedure

Performing the Insulation Test

Guides on how to conduct the insulation test with YO2 disconnected.

RC221/RC222 Operation Indicators

LED Status and Current Settings

Explains LED behavior and current threshold settings for alarm/pre-alarm.

Technical Legend and Circuit Symbols

Component and Signal Definitions

Defines key symbols, components (K87, SO, TI, etc.), and circuit elements.