IMO C4/63R-63 thermal magnetic motor circuit breaker with adjustable 45-63 A overload protection and 819 A magnetic trip release for industrial motor protection applications.
Original price was: £190.73.£126.80Current price is: £126.80.
The IMO C4/63R-63 is a robust thermal magnetic motor circuit breaker engineered to provide dependable protection for three-phase motors used in industrial machinery, automation systems and motor control panels. As part of the IMO C4 motor protection circuit breaker range, it combines adjustable thermal overload protection with rapid magnetic short-circuit protection in a compact, reliable device designed for demanding industrial environments.
Designed for machine builders, panel manufacturers and maintenance engineers, the C4/63R-63 protects motors against overloads, phase failure and short-circuit faults while providing safe manual isolation. Its rotary operating handle, DIN rail mounting capability and compatibility with a wide range of accessories make it an excellent choice for industrial motor starter assemblies and control systems.
With an adjustable thermal setting of 45-63 A and an instantaneous magnetic trip release of 819 A, the IMO C4/63R-63 is ideal for protecting larger motors used in pumps, compressors, conveyors, fans and heavy-duty production machinery.
The IMO C4/63R-63 combines thermal overload and magnetic short-circuit protection to safeguard three-phase motors operating in demanding industrial environments. The adjustable overload setting allows accurate matching to the motor's full-load current, helping reduce downtime while improving equipment reliability and service life.
Its compact design and compatibility with auxiliary contacts, shunt trips and undervoltage releases make it suitable for motor starter assemblies, machine control panels and OEM equipment where dependable motor protection and safe isolation are essential.
| Current | 63 A |
|---|---|
| Manufacturer | IMO Precision Controls |
| Series | C4 Motor Protection Circuit Breakers |
| Model | C4/63R-63 |
| Alternative SKU | C463R63 |
| Product type | Thermal magnetic motor circuit breaker |
| Current adjustment range | 45-63 A |
| Magnetic trip release | 819 A |
| Number of poles | 3 |
| Rated operational voltage | Up to 690 V AC |
| Rated insulation voltage | 1000 V |
| Frequency | 50 / 60 Hz |
| Protection rating | IP20 |
| Short-circuit breaking capacity | 50 kA |
| Mounting type | DIN rail / panel mounting |
| Manufacturer part number | C4/63R-63 |
| HS Code | 8536209090 |
| Country of Manufacture | Austria |
The IMO C4/63R-63 protects three-phase motors against overloads, short circuits and phase failure in industrial motor control applications.
The adjustable thermal overload range is 45-63 A.
The magnetic short-circuit release operates at approximately 819 A.
Yes. The C4/63R-63 is designed for DIN rail or panel mounting inside industrial electrical control cabinets.
It is widely used with pumps, compressors, conveyors, fans, production machinery and industrial motor starter panels.
IMO C4 motor protection circuit breakers are trusted by panel builders, OEM manufacturers and industrial engineers for dependable motor protection, reliable switching and long service life in demanding industrial applications.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...