4 NO contacts in a 45 mm S00 footprint
The 3RH2140-1AP00: That's the same width as a standard miniature circuit breaker, so it slots into a crowded DIN rail without stealing an extra module position. For a panel builder wiring a control transformer or PLC output bank, that means you can daisy-chain the common rail through the same terminal without a separate jumper block. That covers most panel layouts where the DIN rail runs horizontally and the wire ducts force a slight rotation.
The arcing time runs 10 to 15 ms on AC, 4 to 15 ms on DC.
Environmental and compliance envelope
Minimum relative humidity is 10 %. The substance prohibition date of 10/01/2009 aligns with RoHS compliance deadlines.