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EN Grade 3 approved Personal attack switch with dual momentary push-buttons
The HB 105-M is a mechanical personal attack button approved in EN Grade 3 that can be used for various functions within in an alarm system.
The HB 105-M has two momentary push-button switches with alternating (NC/ NO) function in the terminal. The buttons can be assigned either a single function or separate functions.
There is also an input to control the built-in LED as well as an anti-tamper switch to protect against unauthorised opening.