Product Overview
The iC60N 4P C63 is a four-pole miniature circuit breaker from Schneider Electric’s Acti9 iC60 series. It carries a 63A rated current and a C trip curve, which makes it suitable for distribution circuits where moderate inrush currents occur. This breaker combines thermal and magnetic protection in one compact DIN-rail device. For maintenance engineers, the real value lies in predictable performance and simple service access.
Key Parameters That Matter on the Floor
63A Rated Current and C Curve
The 63A rating defines the continuous load the breaker can carry. The C curve trips magnetically at 8×In ±20%, so it tolerates brief surges from motors or transformers without nuisance tripping. That balance keeps production lines running while still clearing genuine faults.
6 kA Breaking Capacity at 400V AC
With a 6 kA breaking capacity at 230/400V under IEC 60898-1, this device safely interrupts fault currents up to that level. In practice, it protects downstream wiring and equipment in commercial and light industrial panels.
Mechanical and Electrical Life
The breaker offers 20,000 mechanical cycles and 10,000 electrical cycles. Those numbers matter for maintenance planning: high-cycle feeders may need periodic inspection, while normal distribution boards will rarely approach these limits.
Environmental Range
An operating temperature range of -35 to 70 °C supports installation in unheated plant rooms or hot enclosures. The 35 mm DIN rail mount and 85 × 72 × 78.5 mm footprint keep panel layout straightforward.
Where This Breaker Fits
Distribution Board Upgrades
When a panel needs a four-pole protective device for a 63A feeder, the iC60N 4P C63 drops into a standard 35 mm DIN rail. Its 6 kA rating suits final distribution boards in workshops and commercial buildings.
Motor and Transformer Circuits
The C curve handles the inrush of small motors and transformers. Maintenance teams replacing older breakers often choose this curve to reduce call-outs caused by start-up surges.
Replacement and Upgrade Projects
Because the Acti9 iC60 range remains active, engineers can standardize spares across multiple panels. Fewer part numbers mean faster swaps during breakdowns and less downtime.
Installation and Setup Notes
Mount the device on a 35 mm DIN rail and confirm the 400V AC rating matches the system. The four-pole configuration suits three-phase plus neutral circuits. Verify torque and terminal condition per the manufacturer’s instructions. Keep the operating temperature within -35 to 70 °C, and leave space for heat dissipation in dense panels.
Maintenance and Reliability
Inspect terminals periodically for looseness and discoloration. Exercise the breaker during planned shutdowns to confirm smooth operation. Track electrical cycles on heavily loaded feeders; the 10,000-cycle electrical life gives a useful service reference. Because the product is active in the Acti9 range, spare units remain available, which supports long-term reliability planning.
Compatibility and Integration
This breaker fits standard 35 mm DIN rail enclosures and works alongside other Acti9 iC60 devices. It complies with EN/IEC 60898-1 and EN/IEC 60947-2, so it integrates into panels designed to those standards. Maintenance teams can mix it with existing Acti9 components without special adapters.
Selection Checklist Before You Buy
Confirm the 63A rating, four-pole configuration, and C curve match your load. Check that 6 kA breaking capacity meets your fault level. Verify the 400V AC rating against your supply. SpareTechPLC supplies this model and can confirm current lifecycle status and availability before you order.
Frequently Asked Questions
What does the C curve mean on this breaker?
The C curve trips magnetically at 8×In ±20%, allowing short inrush currents while still protecting against overloads and short circuits.
Can I use this breaker for three-phase circuits?
Yes. The four-pole design supports three-phase plus neutral arrangements at 400V AC.
How often should I inspect it?
Inspect terminals and operation during scheduled maintenance. Track electrical cycles against the 10,000-cycle rating on heavily loaded feeders.
Is this model still in production?
The Acti9 iC60 range is active. Confirm current availability with SpareTechPLC before ordering.
