ABB ot16f4c 16 amp change-over switch

Why Choose the ABB OT16F4C Manual Change-Over Switch?

The ABB OT16F4C is a compact and reliable 4-pole manual change-over switch designed for safe source transfer and switching in low-voltage electrical installations. As part of the proven ABB OT Series, it provides dependable manual change-over control for industrial panels, machinery, switchboards and power distribution applications.

This switch features an open transition change-over operation, helping ensure the load is disconnected before being reconnected to the alternate supply. Its front-operated design, protected clamp terminals and compact construction make it suitable for professional panel building, OEM machinery and enclosure-mounted electrical systems.

With a 16 A operational rating, 4-pole configuration and 750 V AC rated insulation voltage, the ABB OT16F4C is ideal for manual supply selection, generator change-over, control panel switching and isolation duties. The handle and operating shaft are ordered separately, allowing flexible configuration for different enclosure layouts.

Key Advantages

• Compact 4-pole manual change-over switch for low-voltage systems.
• 16 A operational current suitable for control and power switching.
• Open transition operation for safe source change-over.
• 750 V AC rated insulation voltage for industrial applications.
• Protected clamp terminals support secure wiring.
• Compatible with ABB handles and shafts for enclosure mounting.

Key Features

• ABB OT Series change-over switch.
• 4-pole manual transfer switch.
• 16 A rated operational current.
• 8 kV rated impulse withstand voltage.
• 25 A conventional thermal current.
• Open transition switching operation.
• Base-mounted format for electrical panels.
• Handle and operating shaft supplied separately.

Technical Specifications

• Manufacturer: ABB
• Series: OT Series
• Model: OT16F4C
• Product ID: 1SCA104831R1001
• Product type: Manual change-over switch
• Switching operation: Open transition
• Number of poles: 4
• Rated operational current: 16 A
• Rated operational power AC-23A: 7.5 kW
• Rated operational voltage: Up to 750 V AC
• Rated insulation voltage: 750 V AC
• Rated impulse withstand voltage: 8 kV
• Short-time withstand current: 0.5 kA for 1 s
• Terminal type: Protected clamp terminals
• Mounting type: Base mounting / panel mounting
• Dimensions (H × W × D): approx. 68 × 96 × 68 mm
• Weight: approx. 0.31 kg

Reliable Manual Source Transfer for Electrical Panels

Manual change-over switches are used to transfer electrical loads between two supplies while maintaining safe disconnection during the switching process. They are commonly used in systems requiring manual source selection, controlled isolation and dependable low-voltage switching.

The ABB OT16F4C provides robust change-over performance in a compact format, making it well suited to control panels, machinery, small distribution boards and OEM electrical assemblies. Its 4-pole design allows switching of three phases plus neutral in suitable applications.

Typical Applications

• Manual supply change-over systems.
• Generator and auxiliary supply selection.
• Industrial control panels.
• Machinery and OEM electrical equipment.
• Electrical switchboards and distribution boards.
• Low-voltage power transfer and isolation circuits.

Trusted by Panel Builders Worldwide

ABB OT Series change-over switches are widely used by panel builders, electrical contractors and automation engineers to provide reliable manual switching and source transfer in low-voltage electrical installations.