Contact configuration and switching
The 3RH1140-1JB40: Four NO contacts, zero NC, no leading or lagging auxiliary, no make-before-break. That's a clean 4-pole normally-open set — you're getting four independent form-A contacts that all close when the coil picks up. The surge suppressor is built in with a diode across the coil, so external flyback protection isn't needed for DC switching. Rated switching capacity drops with voltage: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, 2 A at 500 V, 1 A at 690 V.
Screw terminals accept solid or ferruled stranded: 2x (0.5...1.5 mm²), 2x (0.75...2.5 mm²), or 2x 4 mm² per clamp. AWG equivalent is 2x (20...16), 2x (18...14), or 1x 12. That's enough capacity for daisy-chaining through the auxiliary contacts without piggyback terminals. Strip length around 8-10 mm is typical for this class of screw clamp.
Shock resistance is 10g at 5 ms and 5g at 10 ms.