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The Schurter Inc. 4404.0100 is a thermal circuit breaker designed for equipment protection. This 1-pole device features THT terminals for through-hole PCB mounting and a push-to-reset actuator. It has a rated current of 7A and a maximum AC voltage rating of 240 VAC, with a DC rating of 48/32 VDC.
Key technical specifications include a conditional short circuit capacity of 2 kA (IEC and UL/CSA) and an ingress protection rating of IP40 on the front side. The circuit breaker is designed for a minimum of 50 switching cycles at 200% Ir and cos φ 0.6, with typical endurance ratings of 2500 cycles for 3-8A and 6000 cycles for 10-15A at 150% Ir and cos φ 0.9. It operates within a temperature range of -5°C to 60°C, depending on the current rating.
This circuit breaker is suitable for various applications, including power supplies, uninterruptible power supplies, power tools, industrial appliances, HVAC systems, and household appliances. It is designed according to product standards such as IEC 60934, UL 1077, and CSA C22.2 No. 235, and is suitable for applications compliant with IEC/UL 62368-1.
Environmental compliance includes RoHS3 compliance and REACH unaffected status. The device supports wave soldering with a solderability rating of 245°C for 3 seconds and resistance to soldering heat of 260°C for 10 seconds. The weight is approximately 12.5g.
The operating voltage is 240 VAC and 48/32 VDC.
For 3 A and 5-15 A variants, the range is -5 °C to 60 °C. For the 4 A variant, it is -5 °C to 50 °C.
The conditional short circuit capacity is 2 kA at 240 VAC and at 48/32 VDC.
Minimum endurance is 50 switching cycles at 200% rated current. Typical endurance is 2500 cycles for 3-8 A and 6000 cycles for 10-15 A at 150% rated current.
Dielectric strength is 1500 VAC. Insulation resistance is greater than 1000 MΩ at 500 VDC.
The part is designed for wave soldering. Solderability is 245 °C for 3 seconds, and resistance to soldering heat is 260 °C for 10 seconds.