ABB OT315E04 Switch-Disconnector Isolator ABB
ABB OT315E04 Switch-Disconnector Isolator ABB
ABB OT315E04 4-Pole 315A Switch Disconnector - official ABB product photo
ABB OT315E04 Switch-Disconnector Isolator ABB
ABB OT315E04 Switch-Disconnector Isolator ABB
ABB OT315E04 4-Pole 315A Switch Disconnector - official ABB product photo

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ABB

ABB OT315E04 Switch-Disconnector Isolator

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AED 1,142.00 inc. VAT
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Order before 12 PM for same-day dispatch. Delivered in 1โ€“2 business days across the UAE, free on orders over AED 200 (AED 15 below). Unused items in sealed packaging can be returned within 7 days.

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ABB OT315E04 4-Pole 315A Switch Disconnector

The ABB OT315E04 is a 4-pole, front-operated, base-mounted switch-disconnector rated at 315A, designed for main switching and isolation duties in low voltage distribution systems. Manufactured to IEC 60947-3, it is suited to commercial and industrial panel applications across the UAE where reliable load-break and isolation performance is required in demanding ambient conditions.

Key Features

  • 4-pole switch-disconnector rated 315A for AC-21A, AC-22A and AC-23A duty across 380โ€“690V systems
  • 65kA rated short-circuit making capacity (Icm) at 690V for robust fault-condition performance
  • 1000V rated insulation voltage and 12kV rated impulse withstand voltage for high dielectric strength
  • Mechanical durability of 16,000 operating cycles for long-term reliability in frequent-switching applications
  • Genuine ABB quality โ€” manufactured in Finland to IEC 60947-3 standards

Technical Specifications

Specification Details
Brand ABB
Model OT315E04
Number of Poles 4P
Rated Operational Current (Ie) AC-23A 315A (380โ€“690V)
Rated Operational Voltage 1000V (main circuit)
Rated Insulation Voltage (Ui) 1000V
Rated Impulse Withstand Voltage (Uimp) 12kV
Rated Short-Circuit Making Capacity (Icm) 65kA at 690V
Rated Short-Time Withstand Current (Icw) 15kA for 1s
Degree of Protection Front IP00
Mounting Type Base mounting
Operating Mode Front operated
Terminal Type Lug terminals
Tightening Torque 30โ€“44 Nยทm (acc. IEC 60947-1)
Mechanical Durability 16,000 operations
Standards IEC 60947-3
Net Weight 3.5 kg
Dimensions (W x H x D) 235 x 185 x 107 mm
Note Handle and shaft not included; terminal bolt kit included

Applications

  • Main incomer isolation in low voltage distribution boards
  • Load-break switching for motor and feeder circuits in commercial buildings
  • Isolation switching in industrial panel builds and switchboards
  • Safe isolation point for maintenance in FM-managed facilities across the UAE

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 โ€” 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 โ€” 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 1โ€“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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