ABB OT63F6 Switch-Disconnector 1SCA105379R1001 ABB
ABB OT63F6 Switch-Disconnector 1SCA105379R1001 ABB

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ABB

ABB OT63F6 Switch-Disconnector 1SCA105379R1001

SKU: 1SCA105379R1001
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ABB OT63F6 6-Pole 63A Switch Disconnector

The OT63F6 is a 6-pole, front-operated switch disconnector rated at 63A, suitable for base and DIN-rail mounting. With protected clamp terminals for safe installation, it is well suited to dual-circuit isolation and changeover switching applications in distribution boards and panel builds across the UAE.

Key Features

  • 6-pole switch disconnector rated up to 63A (AC-21A/AC-22A) for dual-circuit or changeover isolation applications
  • Protected clamp terminals accepting cable cross-sections from 1.5 to 35 mm² for secure, safe wiring
  • Mechanical durability of 20,000 operating cycles for long-term reliability in frequent-switching applications
  • Compact base/DIN-rail mounting design suited to space-constrained distribution boards and enclosures
  • Genuine ABB quality — manufactured in Finland to IEC 60947-3, UL 508 and CSA C22.2 No. 14 standards

Technical Specifications

Specification Details
Brand ABB
Model OT63F6
Number of Poles 6P
Rated Operational Current (Ie) AC-21A/AC-22A 63A (380–690V)
Rated Operational Current (Ie) AC-23A 63A (380–415V)
Rated Operational Voltage 750V (main circuit)
Rated Insulation Voltage (Ui) 750V
Rated Impulse Withstand Voltage (Uimp) 8kV
Rated Short-Circuit Making Capacity (Icm) 1.4kA at 690V
Rated Short-Time Withstand Current (Icw) 1.5kA for 1s
Rated Conditional Short-Circuit Current 50kA (100A fuse, ≤415V)
Degree of Protection Front IP20
Mounting Type Base mounting / DIN-rail
Operating Mode Front operated
Terminal Type Screw terminals
Cable Cross-Section Cu 1.5 – 35 mm²
Tightening Torque 2 N·m (acc. IEC 60947-1)
Mechanical Durability 20,000 operations
Standards IEC 60947-3, UL 508, CSA C22.2 No. 14
Net Weight 0.6 kg
Dimensions (W x H x D) 105 x 91.5 x 84.5 mm
Note Handle and shaft not included

Applications

  • Dual-circuit or changeover isolation switching in distribution boards
  • Multi-circuit load isolation in commercial and light industrial panel builds
  • Compact isolation switching where space in the enclosure is limited
  • 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 — 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.

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