Original price was: £12.04.£9.06Current price is: £9.06.
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.
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.
| Current | 1040 A |
|---|---|
| Phase | Single Phase |
| HS Code | 8536201090 |
| Country of Manufacture | India |
It is used to provide supplementary overload and short circuit protection for circuits within industrial control panels, machinery and automation equipment.
The IMO US10C1040A has a rated current of 40 A.
A C curve circuit breaker accommodates moderate temporary inrush currents, making it suitable for motors, transformers, contactors and other inductive industrial loads.
The circuit breaker clips onto a standard 35 mm DIN rail inside an electrical enclosure or industrial control panel.
No. It is a UL1077 supplementary protector intended for equipment protection and should be installed alongside the required upstream branch circuit protection.
IMO Precision Controls circuit protection products are used by panel builders, machine manufacturers and automation engineers seeking compact construction, dependable electrical protection and straightforward integration into industrial systems.{ "@context": "https://schema.org/", "@type": "Product", "name": "IMO US10C1040A UL1077 Miniature Circuit Breaker 40 A 1 Pole C Curve", "sku": "US10C1040A", "mpn": "US10C1040A", "brand": { "@type": "Brand", "name": "IMO Precision Controls" }, "category": "Miniature Circuit Breakers", "description": "IMO US10C1040A UL1077 supplementary miniature circuit breaker with a 40 A current rating, single-pole configuration, C curve tripping characteristic and 10 kA breaking capacity for industrial control applications.", "additionalProperty": [ { "@type": "PropertyValue", "name": "Rated current", "value": "40 A" }, { "@type": "PropertyValue", "name": "Number of poles", "value": "1 Pole" }, { "@type": "PropertyValue", "name": "Tripping characteristic", "value": "C Curve" }, { "@type": "PropertyValue", "name": "Breaking capacity", "value": "10 kA" }, { "@type": "PropertyValue", "name": "Mounting type", "value": "35 mm DIN rail" } ] } { "@context": "https://schema.org", "@type": "FAQPage", "inLanguage": "en-GB", "mainEntity": [ { "@type": "Question", "name": "What is the IMO US10C1040A used for?", "acceptedAnswer": { "@type": "Answer", "text": "It is used to provide supplementary overload and short circuit protection for circuits within industrial control panels, machinery and automation equipment." } }, { "@type": "Question", "name": "What current rating does this circuit breaker have?", "acceptedAnswer": { "@type": "Answer", "text": "The IMO US10C1040A has a rated current of 40 A." } }, { "@type": "Question", "name": "What does the C curve tripping characteristic mean?", "acceptedAnswer": { "@type": "Answer", "text": "A C curve circuit breaker accommodates moderate temporary inrush currents, making it suitable for motors, transformers, contactors and other inductive industrial loads." } }, { "@type": "Question", "name": "How is the US10C1040A installed?", "acceptedAnswer": { "@type": "Answer", "text": "The circuit breaker clips onto a standard 35 mm DIN rail inside an electrical enclosure or industrial control panel." } }, { "@type": "Question", "name": "Is the US10C1040A a branch circuit breaker?", "acceptedAnswer": { "@type": "Answer", "text": "No. It is a UL1077 supplementary protector intended for equipment protection and should be installed alongside the required upstream branch circuit protection." } } ] }
● Service Agreements
Credit Accounts
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
● frequently asked questions
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
● latest blog
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...