Compel Groupgroup

2P DC MCB 600V 125A 100A 80A Circuit breaker FOR PV System C curve Battery Main Switch

CECE marking - EU conformityCertified - manufacturer-declaredISO 9001ISO 9001 quality managementCertified - manufacturer-declaredCCCCCC - China Compulsory CertificationCertified - manufacturer-declaredEN 60947EN 60947 European standardCertified - manufacturer-declaredULUL listed - US safety certificationCertified - manufacturer-declared
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£52.99inc VAT

Engineered for demanding photovoltaic systems, this 2P DC MCB circuit breaker delivers reliable 600V DC protection with a robust 125A, 100A, or 80A rating. Its C curve tripping characteristic ensures ...

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Questions about this product

What parts of my solar power system is this circuit breaker designed to protect?
This 2-pole DC breaker works as a main disconnect and overcurrent protector for your solar panel array or battery bank. It safely isolates both the positive and negative lines simultaneously. The C-curve trip design handles moderate startup surges from your inverter and charge controller without tripping falsely.
Can I use a standard AC breaker for my DC solar battery bank instead of this model?
No, you should not use standard AC breakers for DC solar systems. This breaker is rated for up to 600V DC to safely extinguish the continuous electrical arcs that DC current creates. AC breakers cannot extinguish these arcs, which creates a serious fire hazard in a PV setup.
How do I mount this circuit breaker and does the wiring polarity matter?
This breaker snaps directly onto a standard DIN rail in any physical orientation. Yes, polarity is critical because the device has clearly marked positive (+) and negative (-) terminals. You must wire it matching these labels to ensure the internal arc-extinguishing magnets work correctly during a fault.

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