ABB OT16F4C 4-pole 16 A manual change-over switch with open transition operation for low-voltage electrical panels, switchboards and machinery applications.
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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.
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.
Technical Specifications
Current
16 A
Phase
Three Phase
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
HS Code
85365080
Country of Manufacture
Finland
Frequently Asked Questions
What is the ABB OT16F4C used for?
The ABB OT16F4C is used for manually switching or transferring low-voltage electrical loads between two sources in control panels, switchboards and machinery installations.
Is the ABB OT16F4C a change-over switch?
Yes. The OT16F4C is a 4-pole manual change-over switch with open transition operation.
What is the current rating of the OT16F4C?
The ABB OT16F4C has a rated operational current of 16 A.
Does the ABB OT16F4C include a handle and shaft?
No. The handle and operating shaft are ordered separately so the switch can be configured to suit different enclosure and panel layouts.
Where is the ABB OT16F4C typically installed?
The switch is typically installed inside electrical panels, control cabinets, distribution boards, switchboards and OEM machinery enclosures.
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.
Current
16 A
Phase
Three Phase
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
HS Code
85365080
Country of Manufacture
Finland
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Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...