Plug-In Technology; Product Description - Siemens Sentron 3VA Manual

4.4.5

Plug-in technology

4.4.5.1

Product description

Applications
The plug-in units for the 3VA UL molded case circuit breakers are designed for complex
applications in which fast replacement of the molded case circuit breaker is needed. Plug-in
technology can be used, for example, when clear visual evidence of safe electrical isolation
of circuits is essential, e.g. when inspection work is in progress.
Description
With a plug-in system, the molded case circuit breaker is moved into and out of the plug-in
socket manually.
Projectile hazard.
The molded case circuit breaker can be ejected from its socket by the resulting magnetic
forces of a short-circuit event if not properly secured to its base.
Screw the 3VA UL molded case circuit breakers to the plug-in socket in inserted state. The
complete kit for plug-in technology contains assembly screws for this purpose.
3VA molded case circuit breakers with UL and IEC certification
Manual, 01/2019, L1V30435333-01
WARNING
4.4 Plug-in and draw-out technology
Accessories
227