* Alarm contacts are fitted into or onto the casing from pressure gauges and thermometers and are being used to make or break an electric control circuit.
* Instruments must be 100mm or bigger.
* Magnetic contacts
* Contact Type: Single
Contacts: 1a, 1b
Double Contacts: 1a1b, 2a, 2b
* Connection Type: BD type (back connection with front flange).
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