Molded case circuit breaker Terasaki Electric Marine system
The majority of distribution systems are designed to an ultimate circuit rating (lcu). An lcu rated MCCB provides the optimum protection in terms of safe and economical selection.
Certain applications may require protection wich is designed to the more onerous service short circuit rating (lcu).
Terasaki's TemBreak Plus range can provide a wide choice of MCCBs with superior lcs ratings up to 85kA at 440V AC.
lcu=o-co 2 full short circuits
lcs=o-co-co 3 full short circuit
All TemBreak Plugin and drawout MCCBs are fitted with a safety trip as standard. If an attempt is made to remove an MCCB while ON it will automatically trip.
The neutral pole of all TemBreak MCCBs are of early make / late break design. This eliminates the risk of abnormal line to neutral voltages which may damage sensitive electronic equipment.
TemBreak MCCBs from 125AF to 1600AF are suitable for isolation as defined by IEC 947-2. Positive Contact Indication (PCI) is achieved via the toggle mechanism. Padlocks can only be installed if the contacts are fully open or closed.
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