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US10C1050A IMO 10kA UL1077 MCB 1 pole 50A C Curve
£8.43
Why Choose the IMO US10C1050A UL1077 Miniature Circuit Breaker?
The IMO US10C1050A is a compact and dependable UL1077 supplementary miniature circuit breaker (MCB) designed to protect industrial control circuits against overload and short circuit conditions. Manufactured by IMO Precision Controls, it provides reliable supplementary protection for machinery, automation equipment, OEM systems and electrical control panels.
Designed for panel builders, machine manufacturers and industrial maintenance engineers, the US10C1050A combines thermal-magnetic protection with a compact DIN rail mounted format. Its C curve tripping characteristic accommodates the moderate temporary inrush currents associated with motors, transformers, contactors, solenoids and other inductive electrical loads.
With a rated current of 50 A, a single-pole configuration and a 10 kA short circuit breaking capacity, the IMO US10C1050A delivers dependable circuit protection while helping minimise equipment damage, electrical downtime and maintenance requirements.
Key Advantages
- Compact UL1077 supplementary protector for industrial control applications.
- 50 A current rating suitable for higher-load machinery and automation circuits.
- 10 kA breaking capacity for dependable short circuit protection.
- C curve tripping characteristic suitable for moderate inrush currents.
- Space-saving single-pole modular design.
- Quick installation onto a standard 35 mm DIN rail.
Key Features
- IMO US10 UL1077 series.
- 50 A rated current.
- Single-pole (1P) configuration.
- C curve tripping characteristic.
- 10 kA short circuit breaking capacity.
- Thermal-magnetic overload and short circuit protection.
- Clear contact position indication.
- Compact DIN rail mounted construction.
- IP20 finger-safe terminal protection.
Reliable Protection for Industrial Control Circuits
The IMO US10C1050A automatically disconnects a protected circuit when excessive current is detected. Its thermal element responds to sustained overload conditions, while its magnetic mechanism provides rapid operation during high-current short circuits.
Its C curve response makes the breaker suitable for industrial equipment that may draw a temporary starting current during normal operation. The compact modular design allows straightforward integration into new or existing control panels while maintaining valuable DIN rail space.
Typical Applications
- Industrial control panels.
- Machine building and OEM equipment.
- Automation and process control systems.
- Motors, transformers and industrial power supplies.
- Contactors, relays and solenoid circuits.
- Industrial machinery and production equipment.
Technical Specifications
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| Certification | UL 1077 | |
|---|---|---|
| Current | 50 A | |
| Phase | Single Phase | |
| Poles | 1-pole | |
| Device Type | MCB | |
| Trip Curve | C curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | IMO Precision Controls | |
| Series | US10 UL1077 Miniature Circuit Breakers | |
| Model | US10C1050A | |
| Product type | UL1077 supplementary miniature circuit breaker | |
| Rated current | 50 A | |
| Number of poles | 1 Pole | |
| Tripping characteristic | C Curve | |
| Rated voltage | Up to 277 V AC | |
| Frequency | 50 / 60 Hz | |
| Breaking capacity | 10 kA | |
| Operating mechanism | Thermal-magnetic | |
| Protection rating | IP20 | |
| Mounting type | 35 mm DIN rail | |
| Mechanical life | Up to 20,000 operations | |
| Electrical life | Up to 6,000 operations | |
| Dimensions (H × W × D) | approx. 86.3 × 17.5 × 73.5 mm | |
| Weight | approx. 0.125 kg | |
| HS Code | 8536201090 | |
| Country of Manufacture | India |
Frequently Asked Questions
What is the IMO US10C1050A used for?
It is used to provide supplementary overload and short circuit protection for circuits within industrial control panels, machinery and automation equipment.
What current rating does this circuit breaker have?
The IMO US10C1050A has a rated current of 50 A.
What does the C curve tripping characteristic mean?
A C curve circuit breaker accommodates moderate temporary inrush currents, making it suitable for motors, transformers, contactors and other inductive industrial loads.
How is the US10C1050A installed?
The circuit breaker clips onto a standard 35 mm DIN rail inside an electrical enclosure or industrial control panel.
Is the US10C1050A a branch circuit breaker?
No. It is a UL1077 supplementary protector intended for equipment protection and should be installed alongside the required upstream branch circuit protection.
Trusted by Industrial Professionals Worldwide
IMO Precision Controls circuit protection products are trusted by panel builders, OEMs and automation engineers worldwide for reliable protection, compact installation and dependable long-term performance.
