The Tyco MUB5EX 517.050.023 is an intrinsically safe (I.S.) universal detector base, compatible with the M600Ex, MB800Ex and the 800Exn ranges of detectors.
The Tyco MUB5EX accepts an address label carrier from the detector when it is fitted into the base. The Tyco MUB5EX 517.050.023 has 4 electrical contacts which align with the contact on the detector.
The raised rib is aligned with the raised rub on the detector, when the detector is in the fully home position.