ABB OT630E03 Handle Type Isolator 1SCA022775R3670

Switch DisconnectorABB OT630E03 630A 3-Pole Switch-Disconnector

The OT630E03 is a 3-pole, front-operated, base-mounted switch-disconnector rated at 630A, designed for main isolation duty in power distribution panels. Supplied with a terminal bolt kit but without handle and shaft (ordered separately), it delivers robust switching and isolation performance for heavy-duty electrical installations across UAE commercial and industrial facilities.

Key Features

• 630A rated conventional thermal current for reliable isolation in high-current distribution circuits
• Front-operated mechanism with base mounting for straightforward panel integration
• High rated insulation voltage of 1000V and impulse withstand voltage of 12kV for robust dielectric performance
• Rated short-circuit making capacity of 80kA at 690V for demanding fault conditions
• Genuine ABB quality — proven OT-series switch-disconnector platform

Technical Specifications

Applications

• Main incomer isolation in low voltage switchboards for commercial and industrial buildings
• Load break switching and isolation in power distribution panels across the UAE
• Generator and transformer circuit isolation for maintenance safety
• Heavy-duty panel builds requiring high fault-current withstand capability

FAQ

• Is this an MCB or an isolator?
  It's an isolator (switch-disconnector), not an MCB. It has no overload or short-circuit protection — it only provides a manual on/off disconnect, and should be paired with separate MCBs or RCCBs for circuit protection.
• Where should this isolator be installed?
  Typically as the main incoming switch or a local isolation point ahead of the MCBs/RCCBs in a distribution board, so the whole board (or a section of it) can be isolated for maintenance without needing to trip individual breakers.
• Can I install this myself?
  No. This is trade-only distribution board equipment and must be installed and connected by a licensed electrician in accordance with local wiring regulations.
• Can this isolator be used to switch a live circuit under load?
  Isolators rated for on-load switching can do this within their utilisation category, but check the specific AC rating in the Technical Specifications table — an isolator is not a protective device and should not substitute for a circuit breaker.

Orders placed before 12 PM (UAE time) are dispatched the same business day and delivered in 1–2 business days across the UAE. Delivery is free on orders over AED 200; below that it costs AED 15. International shipping is charged by weight at checkout, and international orders cannot be returned. Read our Shipping Policy and Refund Policy.

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