Original price was: £36.00.£27.11Current price is: £27.11.
The IMO US10C3040A is a robust UL1077 supplementary miniature circuit breaker (MCB) designed to provide dependable overload and short-circuit protection for industrial control panels, OEM machinery and automation systems. Manufactured by IMO Precision Controls, this three-pole circuit breaker combines reliable electrical protection with a compact DIN rail mounted design for demanding industrial environments.
Designed for panel builders, machine manufacturers and automation engineers, the US10C3040A delivers dependable supplementary circuit protection while helping to maximise available panel space. Its durable construction supports reliable long-term operation in industrial electrical cabinets and control systems.
Featuring a rated current of 40 A, a C Curve tripping characteristic and a 10 kA interrupting capacity, the IMO US10C3040A is well suited to protecting three-phase motors, industrial machinery and automation equipment where moderate inrush currents are expected.
The IMO US10C3040A automatically disconnects electrical circuits during overload or short-circuit conditions, helping to protect wiring, machinery and control equipment from electrical damage. This supports improved equipment reliability while reducing unplanned downtime and maintenance costs.
Its three-pole construction provides dependable protection for three-phase electrical systems, while the C Curve operating characteristic allows normal motor and transformer starting currents without unnecessary nuisance tripping.
| Current | 3040 A |
|---|---|
| Phase | Three Phase |
| HS Code | 8536201090 |
| Country of Manufacture | India |
The US10C3040A provides supplementary overload and short-circuit protection for three-phase industrial control circuits, machinery and automation systems.
The IMO US10C3040A has a 40 A rated current.
The breaker uses a C Curve tripping characteristic, making it suitable for industrial circuits with moderate motor and transformer inrush currents.
The breaker offers a 10 kA breaking capacity for dependable protection against fault currents.
It is designed for DIN rail mounting inside industrial control panels, machine cabinets and OEM automation equipment.
IMO Precision Controls supplementary circuit breakers are trusted by panel builders, automation engineers and OEM manufacturers worldwide for dependable protection of industrial electrical systems.{ "@context": "https://schema.org/", "@type": "Product", "name": "IMO US10C3040A UL1077 Supplementary Circuit Breaker 3 Pole 40 A", "sku": "US10C3040A", "mpn": "US10C3040A", "brand": { "@type": "Brand", "name": "IMO Precision Controls" }, "category": "Miniature Circuit Breakers", "description": "IMO US10C3040A three-pole UL1077 supplementary miniature circuit breaker with a 40 A rating, C Curve tripping characteristic and 10 kA breaking capacity for industrial control panels and machinery.", "additionalProperty": [ { "@type": "PropertyValue", "name": "Rated current", "value": "40 A" }, { "@type": "PropertyValue", "name": "Number of poles", "value": "3" }, { "@type": "PropertyValue", "name": "Trip characteristic", "value": "C Curve" }, { "@type": "PropertyValue", "name": "Breaking capacity", "value": "10 kA" }, { "@type": "PropertyValue", "name": "Standard", "value": "UL1077" } ] } { "@context": "https://schema.org", "@type": "FAQPage", "inLanguage": "en-GB", "mainEntity": [ { "@type": "Question", "name": "What is the IMO US10C3040A used for?", "acceptedAnswer": { "@type": "Answer", "text": "The US10C3040A provides supplementary overload and short-circuit protection for three-phase industrial control circuits, machinery and automation systems." } }, { "@type": "Question", "name": "What is the current rating of this circuit breaker?", "acceptedAnswer": { "@type": "Answer", "text": "The IMO US10C3040A has a 40 A rated current." } }, { "@type": "Question", "name": "What trip characteristic does it use?", "acceptedAnswer": { "@type": "Answer", "text": "The breaker uses a C Curve tripping characteristic, making it suitable for industrial circuits with moderate motor and transformer inrush currents." } }, { "@type": "Question", "name": "What interrupt rating does the breaker provide?", "acceptedAnswer": { "@type": "Answer", "text": "The breaker offers a 10 kA breaking capacity for dependable protection against fault currents." } }, { "@type": "Question", "name": "Where is the IMO US10C3040A typically installed?", "acceptedAnswer": { "@type": "Answer", "text": "It is designed for DIN rail mounting inside industrial control panels, machine cabinets and OEM automation equipment." } } ] }
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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...