Users Manual
Table Of Contents
- 1 Introduction
- 2 Description
Description
2.2 Circuit breakers and non-automatic circuit breakers
3WA Air Circuit Breakers
Equipment Manual, 05/2021, 92310000002-03
35
2.2.3 Circuit breaker identification
2.2.3.1 Rating and accessory labels
The rating and accessory labels provide identification of the circuit breaker. It contains the
article number, equipment details, and further information on the circuit breaker.
(1) Article number circuit breaker (7) 2
nd
shunt trip (ST2) or
undervoltage release (UVR or UVR-t)
(2)
Internal voltage tap
(8)
Remote trip alarm reset coil (RR)
(3)
Variant of the metering function
(9)
Closing coil (CC)
(4)
Country of origin
(10)
Spring charging motor (M)
(5)
Polarity of main conducting paths
(11)
Auxiliary contacts (AUX)
(6)
First shunt trip (ST)