LZAB1-C40 miniature circuit breaker

1. The upper limit of the surrounding air temperature shall not exceed+40 ℃, the lower limit shall not be lower than -5 ℃, and the average temperature value over 24 hours shall not exceed+35 ℃; Note 1: For working conditions with a lower limit of -10 ℃ or -25 ℃, users must declare it to the manufacturer when placing an order; Note 2: For working conditions where the upper limit exceeds+40 ℃ or the lower limit is below -25 ℃, the user should consult with the manufacturer.

2. The altitude of the installation site shall not exceed 2000m;

3. The relative humidity of the atmosphere should not exceed 50% when the ambient air temperature is+40 ℃. Higher relative humidity is allowed at lower temperatures, such as reaching 90% at+20 ℃. Appropriate measures should be taken for occasional condensation caused by temperature changes;

4. Pollution level: Level 2;

5. Installation category: Class II and Class III;

6.The external magnetic field of the installation site should not exceed 5 times the geomagnetic field in any direction;

7. Generally installed vertically, with a tolerance of 2 ° in any direction;

8. The installation site should have no significant impact or vibration.

The LZAB1 series miniature circuit breaker consists of a plastic casing, an operating mechanism, a contact arc extinguishing system, and a trip mechanism. The plastic shell is made of high flame retardant, high-strength special plastic with strong impact resistance and light weight. The parts of the operating mechanism are made of high-strength plastic, which ensures sensitivity and reliability while obtaining the lowest moment of inertia, making the action time from short circuit fault to tripping extremely short. The trip mechanism consists of two parts: a bimetallic overload inverse time trip mechanism and a short-circuit instantaneous electromagnetic mechanism. A multi pole circuit breaker is assembled from multiple single poles, with the release connected by a linkage rod and the handle connected by a linkage rod to ensure consistency in the switching of each pole.