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This E-T-A 201-0.5A is a single-pole thermal magnetic circuit breaker, part of the 201 series. It features a snap-action mechanism with tease-free and trip-free operation, activated by a two-button (reset/trip) actuator. The breaker is designed for standard EN rail mounting and has a narrow profile housing with recessed terminals.
Key electrical specifications include a voltage rating of 240V AC / 65V DC (UL: 250V AC / 80V DC) and a current rating range of 0.05 to 16A. The interrupting capacity (Icn) is 200A for currents up to 2A and 400A for currents from 2.5A to 16A. Insulation resistance is greater than 100 MΩ at 500V DC.
The operating temperature range is -30°C to +60°C. The degree of protection for the operating area is IP40, and for the terminal area, it is IP20. Environmental testing includes vibration resistance up to 5g, shock resistance of 25g, and compliance with humidity and corrosion standards.
Typical applications for this circuit breaker include process control systems, instrumentation, and rail vehicles. It is approved to CBE standard EN 60934 (IEC 60934) and UL 1077.
AC 240 V (UL: 250 V), DC 65 V (UL: 80 V).
-30°C to +60°C (-22°F to +140°F).
DIN rail mount with recessed terminals.
0.05 to 16 A AC/DC.
IEC Icn: 400 A for 2.5–16 A, 200 A for 1–2 A; UL 1077: 1,000 A.
Front IP40, terminals IP20.