Introduction:
It according to IEC 61009-1 standard, protection against the effects of sinusoidal alternating earth fault currents, protection against indirect contacts and additional protection against direct contacts.Assembly on side with LWBX.
| RCBO LWBXL | |
| Standard | IEC 61009-1 |
| Type (wave form of the earth leakage sensed) | AC,A |
| Number of poles | 1P+N,3P+N |
| Rated current In(A) | 40 63 |
| Rated voltage Un (VAC) | 230/400V |
| Rated residual currents (mA) | It-, n= 10 30 50 100 300 |
| Rated residualbreaking capacity Im | Icn of the associated MCB |
Molded case low voltage RCBO circuit breaker are also called device circuit breakers, whose grounding terminal external contacts, arcing chamber, trippers and operating mechanisms are housed in a plastic case.Auxillary contacts, undervoltage trip and shunt trip are modular, compact structure, generally do not consider maintenance, suitable for protection switches as branches.Molded case circuit breakers usually contain thermal-magnetic trip units, while larger size molded case circuit breakers may be equipped with solid-state trip sensors.
Molded case low voltage RCBO breaker overcurrent tripping device has two kinds of electromagnetic type and electronic type, general electromagnetic molded case circuit breaker is a non-selective circuit breaker, only long delay and instantaneous two protection mode;The electronic molded case circuit breaker has four protection functions: long delay, short delay, instantaneous and ground fault.Some new products of electronic molded case circuit breakers also have regional selective interlocking function.
Molded case low voltage RCBO circuit breaker is generally used for control and protection of distribution feeder, small distribution transformer low voltage side outlet main switch, power distribution terminal control, can also be used for a variety of production machinery power switch.
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