Safe door interlock and switch down for turbofan engine test facilities


Relay with force guided contacts
High immunity to interference
Deterministic error behavior
High switching reliability


SRM Safety relay modules for high-performance turbofan engines assuring safe shutdown as well as access protection of test facilities.

Turbofan engines are checked for function and performance after completion of a major overhaul.
During test maximum operating conditions are reached.
In order to insure safety during testing, all access to the
test facility is locked and monitored. Safeguards remain active during a malfunction or until safe system shutdown is achieved.