Why Choose the IMO US10C1005A Supplementary Protector?
The IMO US10C1005A is a compact UL 1077 miniature circuit breaker designed to provide supplementary overload and short circuit protection for electrical equipment and internal control circuits. Manufactured by IMO Precision Controls, this DIN rail-mounted protective device is suitable for industrial machinery, automation systems, OEM equipment and electrical control panels.
Featuring a single-pole configuration, a 5 A rated operational current and a C curve tripping characteristic, the US10C1005A is well suited to circuits that may experience moderate temporary inrush currents during normal operation. Its thermo-magnetic protection mechanism helps safeguard control devices, power supplies, instrumentation and other electrical loads against sustained overloads and short circuit faults.
The US10C1005A offers a 10 kA rated short circuit breaking capacity, a UL operational voltage rating of up to 277 V AC for single-pole applications and an IEC operational voltage rating of 230 V AC. Its compact construction and standard DIN rail mounting help minimise panel space while supporting straightforward installation and maintenance.
Key Advantages
- Provides supplementary overload and short circuit protection for electrical equipment.
- 5 A rated current for control, automation and equipment circuits.
- C curve characteristic accommodates moderate temporary inrush currents.
- Single-pole design provides individual circuit protection.
- 10 kA breaking capacity delivers dependable fault interruption.
- Compact DIN rail construction supports space-efficient panel design.
Key Features
- IMO Precision Controls US10 series.
- 5 A rated operational current.
- Single-pole configuration.
- C curve operating characteristic.
- Thermo-magnetic overcurrent protection.
- 10 kA short circuit breaking capacity.
- UL 1077, IEC 60947-2 and IEC 60898-1 compliant.
- Contact position indicator.
- DIN rail mounting to EN 60715.
- RoHS compliant construction.
Dependable Thermo-Magnetic Circuit Protection
The IMO US10C1005A combines thermal and magnetic tripping technologies within one compact protective device. The thermal element responds to prolonged overload conditions, while the magnetic element operates rapidly during high-current short circuit faults. This dual-action design helps reduce the risk of damage to internal wiring, electrical components and connected equipment.
Its C curve characteristic provides instantaneous magnetic operation at approximately five to ten times the rated current. This makes the US10C1005A suitable for circuits containing control transformers, power supplies, contactor coils and other equipment that may produce a moderate start-up current without indicating a fault.
Typical Applications
- Industrial control panels.
- PLC and automation systems.
- Instrumentation and monitoring circuits.
- Control transformers and power supplies.
- Machine building and OEM equipment.
- Electrical distribution within equipment.
- Heating, ventilation and air-conditioning controls.
- Low-current industrial and commercial circuits.
