Why Choose the IMO US10C1040A UL1077 Miniature Circuit Breaker?
The IMO US10C1040A 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 US10C1040A 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 40 A, a single-pole configuration and a 10 kA short circuit breaking capacity, the IMO US10C1040A delivers effective circuit protection while helping minimise equipment damage, electrical downtime and maintenance requirements.
Key Advantages
- Compact UL1077 supplementary protector for industrial control applications.
- 40 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.
- 40 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 US10C1040A 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 also allows straightforward integration into new or existing control panels without occupying unnecessary 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.
