Crouzet Monitor - Relay Output 84874024

The ETM2 relay, part number 84874024, is a DIN rail mount thermal protection device for PTC probes, operating on 230 V AC with one changeover output. It includes fault latching, a local reset pushbutton, remote reset via external contact, and LED indicators for power and relay status. The housing has an IP50 rating and mounts on a 22.5 mm DIN rail. It detects probe open circuits at 3100 Ω ± 10% and short circuits between 0 and 10 Ω, with a reset threshold of 1650 Ω ± 10%. Response and reset times are ≤ 500 ms. Breaking capacity is 2000 VA at 440 V AC, with a maximum current of 8 A AC. Mechanical life is 5 × 10⁶ operations. Galvanic isolation is provided by transformer for AC supplies.