A customer needs a monitoring relay of type ÜRF 25/10 with cable gland and a dummy plug M20x1.5. The damper should respond at a flow rate of 2.00 m/s. The switching system should be equipped with 2 switching elements (magnet contact tubes). One contact should be normally-closed, the other one normally-open. The device should be delivered in colour RAL 7033. (Note: The unit is suitable for use of standard mineral oils and standard degree of protection IP 56)

Based on the above data the relay ordered has the following

Type code: 12-1.25.44.-0506

Explanation:
12 = ÜRF 25/10
1 = M20x1.5: 1 Cable gland and 1 dummy plug
25 = Switching system with two magnet contact tubes
44 = Casing colour RAL 7033 (cement-grey)
05 = Damper setting: 2.00 m/s +/- 15%
06 = Contact setting of switching system: one NO and one NC contact