ABB ot100f4c 100 amp 4 pole change-over switch

Why Choose the ABB OT100F4C Manual Change-Over Switch?

The ABB OT100F4C is a robust and reliable 4-pole manual change-over switch designed for safe switching between two electrical supplies or circuits in industrial and commercial installations. As part of the trusted ABB OT switch disconnector range, it provides dependable open transition switching for control panels, distribution boards, generator change-over systems and power transfer applications.

This front-operated, non-fusible change-over switch is designed for base mounting and panel integration, offering a practical solution for manual supply selection. Its compact construction, quick make and quick break switching mechanism, and protected terminal design support reliable operation in demanding low voltage electrical systems.

With a rated operational current of 100 A and a 4-pole configuration, the OT100F4C is suitable for manually transferring three-phase and neutral loads between independent supplies. Handle and shaft are ordered separately, allowing the operating mechanism to be matched to the enclosure design and installation requirement.

Key Advantages

• Reliable 4-pole manual change-over switch for industrial and commercial power transfer.
• 100 A rated current suitable for demanding three-phase and neutral applications.
• Open transition I-0-II operation for safe manual transfer between supplies.
• Front-operated design for use in control panels and distribution boards.
• Compact construction helps optimise space inside electrical enclosures.
• Part of the trusted ABB OT change-over switch range.

Key Features

• ABB OT100F4C manual change-over switch.
• 4-pole non-fusible change-over switch.
• 100 A rated operational current.
• Manual I-0-II open transition operation.
• Front operated switching mechanism.
• Quick make and quick break switching performance.
• Fourth pole switched simultaneously on the right side.
• Handle and shaft supplied separately.

Technical Specifications

• Manufacturer: ABB
• Series: OT Switch Disconnectors
• Model: OT100F4C
• Product type: Manual change-over switch
• Configuration: 4-pole
• Rated current: 100 A
• Rated operational voltage: 750 V AC
• Operation type: Front operated
• Switch type: Non-fusible change-over switch
• Transition type: Open transition
• Function: I-0-II
• Mounting type: Base mounting / panel mounting
• Terminal type: Screw terminals
• Protection rating: Front IP20
• Rated insulation voltage: 750 V
• Rated impulse withstand voltage: 8 kV
• Short-time withstand current: 2.5 kA for 1 s
• Power loss: 4 W
• Pollution degree: 3
• Product ID: 1SCA105019R1001
• EAN: 6417019391502
• Dimensions (H × W × D): approx. 100 × 193 × 86 mm
• Weight: approx. 1.3 kg

Reliable Manual Change-Over for Electrical Systems

Manual change-over switches such as the ABB OT100F4C are used where an operator needs to select between two power sources, circuits or operating modes. The open transition design disconnects one source before connecting the other, supporting safe and controlled manual transfer.

The ABB OT range is widely used by panel builders, electrical contractors and machine manufacturers because of its robust construction, compact design and broad accessory compatibility. The OT100F4C is especially suitable for applications requiring a dependable 100 A 4-pole change-over switch for power distribution and supply selection.

Typical Applications

• Manual transfer between mains and generator supplies.
• Three-phase and neutral supply selection systems.
• Industrial control panels and electrical enclosures.
• Distribution boards and power control systems.
• Motor control centres and switchgear assemblies.
• Panel building and OEM electrical equipment.

Trusted by Panel Builders Worldwide

ABB OT change-over switches are widely used by electrical engineers, panel builders and machine manufacturers to provide dependable manual transfer, safe circuit selection and robust switching in industrial electrical systems.