Why Choose the IMO US10D300.5A UL1077 Miniature Circuit Breaker?
The IMO US10D300.5A is a compact and dependable UL1077 supplementary protector miniature circuit breaker designed to protect industrial control circuits, automation equipment and electrical machinery against overload and short-circuit conditions. Manufactured by IMO Precision Controls, it provides reliable circuit protection for panel builders, machine manufacturers and industrial maintenance applications.
This supplementary protector features a D Curve tripping characteristic, allowing it to accommodate the high starting currents commonly associated with transformers, solenoids, motors and other inductive equipment. Its compact modular construction simplifies installation while helping conserve valuable space inside electrical control cabinets.
With a rated current of 0.5 A, a three-pole configuration and a 10 kA short-circuit breaking capacity, the US10D300.5A is suitable for low-current three-phase control and equipment circuits requiring dependable supplementary overcurrent protection. Its DIN rail mounting format enables straightforward integration into industrial panels and machinery.
Key Advantages
- Compact UL1077 supplementary protector for industrial applications.
- 0.5 A rated current suitable for sensitive control and equipment circuits.
- Three-pole configuration for simultaneous protection of three conductors.
- D Curve tripping characteristic accommodates high inrush currents.
- 10 kA breaking capacity provides dependable short-circuit protection.
- DIN rail mounting supports fast installation in control panels and machinery.
Key Features
- IMO US10 supplementary protector series.
- 0.5 A rated current.
- Three-pole design.
- D Curve trip characteristic.
- 10 kA short-circuit breaking capacity.
- Designed for UL1077 supplementary circuit protection.
- Thermal-magnetic overload and short-circuit protection.
- Compact DIN rail-mounted construction for industrial panels.
Reliable Protection for Sensitive Industrial Circuits
Supplementary protectors such as the IMO US10D300.5A automatically disconnect a circuit when excessive current is detected. This helps protect internal equipment wiring, control components and connected devices from damage caused by overloads and short circuits.
The D Curve characteristic allows the breaker to tolerate temporary current surges without unnecessary operation, making it particularly useful for inductive devices with high initial energisation currents. Its three-pole arrangement provides coordinated disconnection across three conductors within industrial equipment and automation systems.
Typical Applications
- Industrial control panels and automation cabinets.
- Transformer and solenoid protection.
- Three-phase equipment control circuits.
- OEM machinery and production equipment.
- Instrumentation and sensitive electrical circuits.
- Process control and manufacturing systems.
