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This Schurter Inc. 4400.0503 is a thermal circuit breaker with a compact design and positively trip-free release. It features a 1-pole configuration, push-to-reset actuation, and quick connect terminals.
The circuit breaker is rated for 240 VAC and 48 VDC, with a rated current range of 0.05 to 16 A. It has a conditional short circuit capacity of 2 kA at 240V AC and an Icn of 8 x In or 96 A depending on the rated current.
Designed for applications such as power tools, household equipment, power supplies and chargers, and industrial appliances, this breaker offers a degree of protection of IP40 on the front side. It operates within a temperature range of -5 °C to 60 °C.
Key technical data includes dielectric strength greater than 1.5 kV (50 Hz) and 2.5 kV (Impulse 1.2/50 μs), and insulation resistance greater than 100 MΩ at 500 VDC. Endurance is rated at a typical 500 switching cycles at 2 x Ir, with minimum endurance specifications for AC and DC reset types. Overload endurance meets IEC and UL/CSA standards.
Mounting is via a panel mount configuration. The breaker has undergone vibration resistance testing up to 5 G and shock resistance testing of 100 G / 6 ms.
The breaker is rated for 240VAC and 48VDC.
The allowable operating temperature range is -5°C to 60°C.
It uses panel mount.
The tripping type is thermal.
It carries approvals: CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077.
Conditional short circuit capacity is 2kA at 240VAC. Short circuit capacity Icn is 8 x In for In < 6.5A or 96A for In ≥ 6.5A at 240VAC.
The actuator type is push to reset.