| abstract |
PROBLEM TO BE SOLVED: To provide an outer shell of a circuit breaker which has excellent impact resistance, can be applied to a high breaking capacity, has excellent flame retardancy and strength properties, and has little mottled whitening. SOLUTION: The base 2 of the circuit breaker is made of nylon 66. 20 wt%, nylon 6 9 wt%, nylon 6T 4 wt%, glass fiber 42 wt%, polybromostyrene 13 wt%, antimony trioxide 4 wt%, ethylene / α-olefin copolymer 8 wt%, carbon black Is contained at 0.3 wt%. |