The TM-D trip provides L protection (overload, thermal) and I protection (short-circuit, magnetic) per IEC 60947-2. Pollution degree 3 (IEC 60664-1) and overvoltage category III mean it is suited for fixed installations in industrial environments where conductive pollution or transient overvoltages are expected. IK07 impact resistance handles routine handling in a switchboard. Electrical durability is 20,000 cycles at 440 V In/2 and 10,000 cycles at 440 V In — the lower figure governs for full-load switching applications like motor circuits.
The breaker mounts on a backplate (not DIN rail) with a 35 mm connection pitch. Front connections on both upside and downside simplify busbar and cable routing in a distribution panel. The toggle control is manual; no motor operator or rotary handle is included in this base variant. The 3D protected poles (three poles fully protected) and 5 equipment slots allow add-on modules (auxiliary contacts, shunt trip, undervoltage release) without removing the breaker from the panel. Horizontal or vertical mounting is permitted; flat on the back is the standard orientation. Power dissipation is 18.75 W per pole at rated current — account for this in enclosure thermal calculations to avoid nuisance tripping from ambient heat buildup.
Compliance and approvals
It also carries UL 60947-4-1 ratings (85 kA Icu at 240 V AC, 65 kA at 480 V AC, 15 kA at 600 V AC) for North American installations. The IEC standard covers the breaking capacity across the full voltage range from 220 V to 690 V AC. Suitability for isolation is confirmed per EN/IEC 60947-2. The IP40 and IK07 ratings are per IEC 60529 and IEC 62262 respectively. Operating altitude is 0–2000 m without derating; above 2000 m up to 5000 m requires derating per the manufacturer's guidelines. Relative humidity range is 0–95 % non-condensing.