Original price was: £36.00.£27.11Current price is: £27.11.
The IMO US10D3040A is a high-performance UL1077 supplementary protector miniature circuit breaker (MCB) designed to provide dependable overcurrent protection for industrial control panels, OEM machinery and automation systems. Manufactured by IMO Precision Controls, this compact device delivers reliable protection while ensuring compliance with recognised international standards for industrial applications.
Designed for demanding electrical installations, the US10D3040A combines a robust construction with a high 10 kA breaking capacity, making it suitable for protecting branch circuits and control equipment against overloads and short circuits. Its compact DIN rail mounting design enables fast installation and efficient use of panel space.
Featuring a 40 A current rating, D curve tripping characteristic and three-pole configuration, the US10D3040A is ideal for circuits with high inrush current loads such as motors, transformers and industrial machinery operating on 230/400 V AC systems.
The IMO US10D3040A is engineered to protect industrial electrical equipment against overload and short-circuit faults. Its D curve operating characteristic allows it to tolerate the high inrush currents associated with motors, transformers and inductive loads while still providing dependable fault protection.
Its compact footprint and DIN rail mounting simplify installation within industrial control panels, helping machine builders and maintenance engineers reduce installation time while ensuring reliable long-term performance.
| Current | 3040 A |
|---|---|
| Phase | Three Phase |
| HS Code | 8536201090 |
| Country of Manufacture | India |
It is a UL1077 supplementary protector designed to provide overload and short-circuit protection for industrial control circuits and machinery.
A D curve breaker is designed for circuits with high inrush currents, making it suitable for motors, transformers and other inductive loads.
The US10D3040A is a three-pole miniature circuit breaker for three-phase electrical systems.
The breaker provides a 10 kA interrupting capacity for dependable fault protection.
The unit mounts directly onto a standard 35 mm DIN rail inside industrial electrical control panels.
IMO Precision Controls circuit protection products are trusted by panel builders, machine manufacturers and automation engineers worldwide for dependable electrical protection, easy installation and reliable long-term performance.{ "@context": "https://schema.org/", "@type": "Product", "name": "IMO US10D3040A UL1077 Miniature Circuit Breaker 3 Pole 40 A D Curve", "sku": "US10D3040A", "mpn": "US10D3040A", "brand": { "@type": "Brand", "name": "IMO" }, "category": "Miniature Circuit Breakers", "description": "IMO US10D3040A UL1077 supplementary protector miniature circuit breaker featuring 3 poles, 40 A rating, D 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": "3" }, { "@type": "PropertyValue", "name": "Trip characteristic", "value": "D Curve" }, { "@type": "PropertyValue", "name": "Rated voltage", "value": "230/400 V AC" }, { "@type": "PropertyValue", "name": "Breaking capacity", "value": "10 kA" } ] } { "@context": "https://schema.org", "@type": "FAQPage", "inLanguage": "en-GB", "mainEntity": [ { "@type": "Question", "name": "What is the IMO US10D3040A used for?", "acceptedAnswer": { "@type": "Answer", "text": "It is a UL1077 supplementary protector designed to provide overload and short-circuit protection for industrial control circuits and machinery." } }, { "@type": "Question", "name": "What does the D curve characteristic mean?", "acceptedAnswer": { "@type": "Answer", "text": "A D curve breaker is designed for circuits with high inrush currents, making it suitable for motors, transformers and other inductive loads." } }, { "@type": "Question", "name": "How many poles does this circuit breaker have?", "acceptedAnswer": { "@type": "Answer", "text": "The US10D3040A is a three-pole miniature circuit breaker for three-phase electrical systems." } }, { "@type": "Question", "name": "What is the breaking capacity?", "acceptedAnswer": { "@type": "Answer", "text": "The breaker provides a 10 kA interrupting capacity for dependable fault protection." } }, { "@type": "Question", "name": "How is the breaker installed?", "acceptedAnswer": { "@type": "Answer", "text": "The unit mounts directly onto a standard 35 mm DIN rail inside industrial electrical control panels." } } ] }
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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...