Original price was: £29.35.£20.42Current price is: £20.42.
The IMO IS4P40 is a robust 40 A four-pole rotary isolator switch designed to provide dependable manual isolation for industrial machinery, commercial equipment and electrical control systems. Its four-pole switching arrangement enables three phase conductors and a neutral conductor to be disconnected simultaneously, making it suitable for three-phase plus neutral electrical installations.
Featuring a clearly indicated rotary ON/OFF mechanism, the IS4P40 provides an accessible means of disconnecting equipment before inspection, servicing or repair work begins. Its positive manual switching action helps support safe electrical working procedures by providing a dedicated isolation point within a control panel or equipment assembly.
The compact panel-mounting design makes the IMO IS4P40 suitable for integration into machinery, control panels and electrical distribution equipment. It is a practical choice for machine builders, panel manufacturers and electrical contractors requiring a reliable 40 A four-pole isolation solution.
Electrical isolator switches provide a clearly defined means of disconnecting equipment from its power supply before maintenance or servicing is carried out. The IMO IS4P40 switches all four connected conductors together, helping ensure that the complete three-phase and neutral circuit is disconnected through one manual operation.
Its straightforward rotary mechanism and compact construction make it suitable for industrial control panels and machinery where dependable, accessible and clearly indicated electrical isolation is required. Product selection and installation should always be completed by a suitably qualified electrical professional.
| Current | 40 A |
|---|---|
| Voltage | 440 V |
| Phase | Three Phase |
The IMO IS4P40 is used to manually disconnect and isolate electrical circuits in machinery, control panels and industrial electrical installations.
The isolator switch has a rated current of 40 A.
It has a four-pole configuration, allowing three phase conductors and a neutral conductor to be disconnected simultaneously.
A four-pole isolator is commonly used where all three phase conductors and the neutral conductor must be disconnected together to provide complete circuit isolation.
It is typically installed in industrial machinery, electrical control panels, distribution equipment and commercial three-phase electrical systems.
IMO isolation and control products are used by electrical engineers, machine builders and panel manufacturers to provide dependable switching, straightforward operation and reliable performance in industrial electrical systems.{ "@context": "https://schema.org/", "@type": "Product", "name": "IMO IS4P40 40 A Four-Pole Rotary Isolator Switch", "sku": "IS4P40", "mpn": "IS4P40", "brand": { "@type": "Brand", "name": "IMO" }, "category": "Electrical Isolator Switches", "description": "IMO IS4P40 40 A four-pole rotary isolator switch for three-phase plus neutral electrical isolation in industrial machinery, control panels and commercial installations.", "additionalProperty": [ { "@type": "PropertyValue", "name": "Rated current", "value": "40 A" }, { "@type": "PropertyValue", "name": "Number of poles", "value": "4" }, { "@type": "PropertyValue", "name": "Switching function", "value": "ON / OFF isolation" }, { "@type": "PropertyValue", "name": "Operating method", "value": "Manual rotary operation" }, { "@type": "PropertyValue", "name": "Application", "value": "Three-phase plus neutral electrical isolation" } ] } { "@context": "https://schema.org", "@type": "FAQPage", "inLanguage": "en-GB", "mainEntity": [ { "@type": "Question", "name": "What is the IMO IS4P40 used for?", "acceptedAnswer": { "@type": "Answer", "text": "The IMO IS4P40 is used to manually disconnect and isolate electrical circuits in machinery, control panels and industrial electrical installations." } }, { "@type": "Question", "name": "What is the current rating of the IS4P40?", "acceptedAnswer": { "@type": "Answer", "text": "The isolator switch has a rated current of 40 A." } }, { "@type": "Question", "name": "How many poles does the IMO IS4P40 have?", "acceptedAnswer": { "@type": "Answer", "text": "It has a four-pole configuration, allowing three phase conductors and a neutral conductor to be disconnected simultaneously." } }, { "@type": "Question", "name": "Why would a four-pole isolator be required?", "acceptedAnswer": { "@type": "Answer", "text": "A four-pole isolator is commonly used where all three phase conductors and the neutral conductor must be disconnected together to provide complete circuit isolation." } }, { "@type": "Question", "name": "Where is the IMO IS4P40 typically installed?", "acceptedAnswer": { "@type": "Answer", "text": "It is typically installed in industrial machinery, electrical control panels, distribution equipment and commercial three-phase electrical systems." } } ] }
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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...