20 A Single-Pole 120 VAC BL Bolt-On Molded Case Circuit Breaker Circuit breakers protect an electrical circuit from damage caused by excess current from an overload or short circuit The breaker will turn off to interrupt current flow after a fault is detected Siemens provides different types of residential circuit breakers based on our customer's needs and the requirements of the National Electric Code®
NEMA UL RATINGS CHART - media. cityelectricsupply. com NEMA UL RATINGS CHART NEMA UL are standard writing organizations commonly recognized in the North American continent The following ratings are based on similar application descriptions and expected performance UL requires enclosure testing by qualified evaluators The Milbank Test Lab is certified in the UL Client Test Data Program They also send site inspectors to check manufacturer
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