Applications
Industrial, Commercial

Features
- Common for all MCB's
- Can be coupled on both sides of MCB's
- There are two change-over contacts - the upper one features changeable function S/H
- CB SH/HH-R couples to the right side of the protection devices; CB SH/HH-L couple to the left
- No stack-on possibilities (only one auxiliary)
- No busbar pass-through facilities

Functions
The bottom auxiliary contact (function H) reports the OPEN/ CLOSED status.

The top auxiliary contact can act as either an auxiliary contact (function H) or a signal contact (function S). The user can set the function at the time of installation. When used as a signal contact, it reports information about the automatic tripping of the protection devices.

A test button on the front simulates functions H or S. There are also a reset button for the contacts (function S) and a tripping signal (function S).

Approvals
cURus