The 3RH1140-1BB40: Rated 10 A at 24 V, the contacts cover signalling, PLC output interlocking, and small auxiliary loads common in motor control centres and distribution panels.
Contact ratings in context
Mechanical endurance is rated at 30 million operations, and contact reliability is specified as one incorrect switching per 100 million operations at 17 V, 1 mA — suitable for dry-circuit applications where low-level signal integrity matters.
Mounting and integration
The 45 mm width and 57.5 mm height fit the S00 footprint; depth is 72 mm. Mounting allows screw fastening or snap-on onto DIN rail, and the unit can be rotated ±180° on a vertical surface or tilted ±22.5° forward/backward, giving flexibility in tight panels. Terminal capacity accepts solid conductors: 2 x (0.5...1.5 mm²), 2 x (0.75...2.5 mm²), and 2 x 4 mm². Front protection is IP20, adequate for enclosed cabinet use. Pollution degree 3. Coil power consumption is 3.2 W DC for both closing and holding, so no additional inrush beyond that steady draw. Surge voltage resistance is 6 kV, providing margin in industrial environments.