Original price was: £401.93.£267.21Current price is: £267.21.
The IMO SI25-PEL64R-4H is a robust enclosed DC isolator switch specifically engineered for photovoltaic (PV) installations and other high-voltage DC applications. Housed within a durable IP66 weatherproof enclosure, it provides safe and reliable DC isolation for solar arrays, battery storage systems and renewable energy installations operating up to 1000V DC.
Designed by IMO Precision Controls, the SI25-PEL64R-4H features a lockable rotary handle, operator-independent snap-action switching and integrated arc suppression technology. Unlike AC switches adapted for DC use, the SI Series has been purpose-built for true DC switching, delivering dependable performance and enhanced safety in demanding solar applications.
Its compact enclosure, rugged thermoplastic construction and IP66 environmental protection make it suitable for both indoor and outdoor installations. The switch is widely specified by PV installers, OEM panel builders and renewable energy contractors where reliable DC isolation is essential for maintenance and emergency shutdown procedures.
Breaking DC circuits safely requires specialised switching technology due to the sustained nature of DC arcs. The IMO SI25-PEL64R-4H incorporates knife-edge contacts, high-speed switching and integrated arc suppression chambers to rapidly interrupt DC current, helping protect equipment and maintenance personnel.
The IP66 enclosure protects the isolator from dust and powerful water jets, making it ideal for outdoor renewable energy installations exposed to harsh environmental conditions while maintaining dependable long-term operation.
| Current | 45 A |
|---|---|
| Voltage | 000 V |
| IP Rating | IP66 |
| HS Code | 8536508000 |
| Country of Manufacture | Austria |
It is a weatherproof enclosed DC isolator designed for safely isolating photovoltaic arrays, battery storage systems and other high-voltage DC installations.
The SI25-PEL64R-4H is rated at 45A with a maximum operating voltage of 1000V DC.
Yes. The switch is housed within a durable IP66-rated enclosure suitable for demanding indoor and outdoor environments.
Yes. The rotary handle incorporates a lockable ON/OFF/LOCK function to improve maintenance safety.
True DC isolators are specifically designed to interrupt DC currents safely using specialised contact and arc suppression technology, providing significantly safer operation than AC switches adapted for DC applications.
IMO SI Series DC isolators are trusted by solar installers, OEM manufacturers and renewable energy engineers worldwide for dependable high-voltage DC isolation, robust construction and long-term reliability in demanding photovoltaic applications.{ "@context": "https://schema.org/", "@type": "Product", "name": "IMO SI25-PEL64R-4H Enclosed DC Isolator", "sku": "SI25-PEL64R-4H", "mpn": "SI25-PEL64R-4H", "gtin13": "5059394944419", "brand": { "@type": "Brand", "name": "IMO Precision Controls" }, "category": "DC Isolators", "description": "IMO SI25-PEL64R-4H enclosed IP66 True DC isolator rated 45A up to 1000V DC for photovoltaic and renewable energy applications.", "additionalProperty": [ { "@type": "PropertyValue", "name": "Rated current", "value": "45A" }, { "@type": "PropertyValue", "name": "Maximum voltage", "value": "1000V DC" }, { "@type": "PropertyValue", "name": "Protection rating", "value": "IP66" }, { "@type": "PropertyValue", "name": "Enclosure size", "value": "240 × 160 × 120 mm" }, { "@type": "PropertyValue", "name": "Application", "value": "Solar PV and battery energy storage" } ] } { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "What is the IMO SI25-PEL64R-4H used for?", "acceptedAnswer": { "@type": "Answer", "text": "It is a weatherproof enclosed DC isolator designed for safely isolating photovoltaic arrays, battery storage systems and other high-voltage DC installations." } }, { "@type": "Question", "name": "What is the current and voltage rating?", "acceptedAnswer": { "@type": "Answer", "text": "The SI25-PEL64R-4H is rated at 45A with a maximum operating voltage of 1000V DC." } }, { "@type": "Question", "name": "Is the enclosure suitable for outdoor installation?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. The switch is housed within a durable IP66-rated enclosure suitable for demanding indoor and outdoor environments." } }, { "@type": "Question", "name": "Can the handle be locked?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. The rotary handle incorporates a lockable ON/OFF/LOCK function to improve maintenance safety." } }, { "@type": "Question", "name": "Why is a True DC isolator important?", "acceptedAnswer": { "@type": "Answer", "text": "True DC isolators are specifically designed to interrupt DC currents safely using specialised contact and arc suppression technology." } } ] }
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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...