Its adjustable current response value spans 5.5 to 8 A, which is the setting you dial in to match the motor's full-load amps — not a fixed trip point, so one relay covers a range of motor ratings. Rated operational current is 8 A at up to 690 V, 50/60 Hz, with a total typical power loss of 6 W. The 3-pole design uses a thermal bimetallic strip — no electronics to fail, no auxiliary power needed. That makes it a straightforward swap-in for a failed unit on a motor starter: wire it, set the dial, and it tracks the motor's thermal state directly from the line current.
Fastens directly onto a S00-size contactor — no DIN rail required, no separate bracket. Main circuit and auxiliary/control circuit both use screw-type terminals. Wire range accepts 2× (0.5 to 1.5 mm²) solid or stranded, or 2× (0.75 to 2.5 mm²) — typical for the 5.5-8 A motor branch. Tightening torque for main contacts is 0.8 to 1.2 N·m, so a standard screwdriver with a torque-limiting handle keeps connections repeatable. Required side spacing to grounded parts is 6 mm; no special ventilation gap needed beyond that.
Relative humidity during operation up to 90 %. Installation altitude max 2 000 m above sea level. Surge voltage resistance rated at 6 kV, with insulation voltage 690 V at pollution degree 3. RoHS compliance date is May 1, 2012 — the part meets the RoHS exemption structure in effect from that date.