1 Overview 6
2 Introduction 8
3 Protection through residual current protective devices 8
3.1 Additional protection
(previously „Protection against direct contact“) with I
Δn
≤ 30 mA 9
3.2 Fault protection (protection against indirect contact) 12
3.3 Fire protection 13
4 Residual current protective devices 14
4.1 Types of residual current protective devices 14
4.1.1 Type AC 16
4.1.2 Type A 16
4.1.3 Type F 16
4.1.4 Type B 16
4.1.5 Type B+ 17
4.2 Classification of residual current protective devices 17
4.3 Basic design and method of operation 19
4.3.1 Type A RCCB 19
4.3.2 SIQUENCE universal current-sensitive RCCB Type B and Type B+ 21
4.4 Features and application areas 22
4.4.1 RCCB 22
4.4.2 RCBO (Type AC/Type A, Type F) 23
4.4.3 SIQUENCE universal current-sensitive RCCB Type B and Type B+ 26
4.4.4 SIQUENCE universal current-sensitive RCBO Type B und Type B+ 30
4.4.5 RC units for installation on miniature circuit breakers 31
4.4.6 SIGRES RCCB (for harsh ambient conditions) 31
4.4.7 Type
K
super-resistant 32
4.4.8 Type
S
selective 34
4.4.9 Versions for 50 to 400 Hz 35
4.4.10 Versions for 500 V operational voltage 35
4.4.11 Residual current operated circuit breaker with N-connection
on the left side 35
4.5 Additional components for residual current operated
circuit breakers 36
4.5.1 Remote controlled operating mechanism (RC) 36
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