Siemens Sentron 3VA - Applications; Use of the 3 VA UL molded case circuit breakers in line protection

3VA molded case circuit breakers with UL and IEC certification
Manual, 01/2019, L1V30435333-01
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Applications
3
3.1
Use of the 3VA UL molded case circuit breakers in line protection
3.1.1
Applications in line protection
The main applications of the circuit breakers as line protection components are:
● Feeder circuit breaker of machines
● Branch circuit breaker for predominantly resistive loads
● Group switch for loads that are jointly protected
● In main switchboards to provide protection for cables to subdistribution boards
● In subdistribution boards to provide protection for cables to small distribution boards
● Protection for mixed load (e.g. machine, lighting system, heating system, etc.)
The trip units for line protection are designed to provide overload and short-circuit protection
for:
● Cables
● Conductors
● Non-motor loads