The relay mounts in stand-alone installation on a vertical surface, rotatable ±135° and tiltable ±45° front-to-back, which gives the panel builder flexibility in tight enclosures provided the 55 mm width and 118 mm depth are respected for adjacent device clearance (6 mm at the side, zero clearance in other directions).
Main circuit terminals accept solid conductors 2x (0.5…2.5 mm²) or stranded 2x (0.75…25 mm²) and single-stranded up to 35 mm². Auxiliary and control circuit terminals use Cage Clamp, accepting 2x (0.5…1.5 mm²) finely stranded with ferrule, or 2x (20…14) AWG — no screw torque to verify, which speeds panel wiring and reduces connection drift under vibration.
Approvals include ATEX (DMT 98 ATEX G 001) for use in potentially explosive atmospheres, and the relay withstands surge voltages up to 6 kV and shock of 8g / 10 ms — figures that matter for installation in industrial environments with switching transients and mechanical vibration.
The 3RU1136-4GD1 is the direct active replacement for earlier SIRIUS S2 thermal overload relays in the same frame.