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1SCA162748R1001 ABB OTC100G3-4BS OT Plus Panel Mounted Switch Disconnector
ABB OTC100G3-4BS four-pole 100 A manual change-over switch with I-0-II operation, integrated screw terminals, DIN-rail mounting capability and a padlockable direct-mounted handle.
Why Choose the ABB OTC100G3-4BS Change-Over Switch?
The ABB OTC100G3-4BS, product code 1SCA162748R1001, is a robust four-pole manual change-over switch designed for dependable transfer between two independent electrical power sources. As part of the advanced ABB OT Plus change-over switch series, it provides reliable source selection for industrial distribution systems, standby power installations and electrical control panels.
This front-operated change-over switch features a compact base-mounted design that is also suitable for DIN-rail installation. Its integrated screw terminals simplify wiring, while the supplied direct-mounted knob handle can be padlocked to help prevent accidental or unauthorised operation during maintenance and isolation procedures.
With a rated current of 100 A and a four-pole configuration, the OTC100G3-4BS can switch three phase conductors together with the neutral conductor. Its I-0-II operating arrangement provides a central OFF position, making it suitable for mains-to-generator transfer, alternative supply selection and other applications requiring controlled manual power switching.
Key Advantages
- Reliable manual change-over switching between two power sources.
- 100 A rated current for demanding electrical distribution applications.
- Four-pole configuration for switching three phases and neutral.
- Clear I-0-II operating positions with a central OFF position.
- Flexible base or DIN-rail mounting for panel installation.
- Supplied with a padlockable direct-mounted knob handle.
Key Features
- ABB OT Plus change-over switch series.
- 100 A rated operational current.
- Four-pole manual switching configuration.
- I-0-II change-over operation.
- Front-operated switching mechanism.
- Base-mounted and DIN-rail-mountable construction.
- Integrated screw terminals for straightforward wiring.
- Direct-mounted knob handle included.
- Handle can be padlocked for safer isolation.
- Compatible with a shaft for external door operation.
Reliable Power Transfer and Electrical Isolation
Manual change-over switches provide a controlled method of selecting between two separate electrical supplies. The centre OFF position allows the connected load to be isolated before the alternative source is selected, helping prevent unintended connection between the two supplies.
The four-pole ABB OTC100G3-4BS switches the neutral conductor together with all three phases. This makes it particularly suitable for generator change-over panels and installations where the electrical design requires complete separation of both live and neutral conductors.
Typical Applications
- Mains-to-generator change-over systems.
- Industrial electrical distribution boards.
- Commercial and infrastructure power systems.
- Manufacturing and process-control installations.
- Electrical switchboards and control panels.
- Alternative supply and maintenance bypass circuits.
Technical Specifications
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| Mounting Type | DIN rail | |
|---|---|---|
| Device Type | Switch Disconnector | |
| Product Series | ABB OT Plus | |
| Poles | 4-pole | |
| Manufacturer | ABB | |
| Series | OT Plus Change-Over Switches | |
| Model | OTC100G3-4BS | |
| Product ID | 1SCA162748R1001 | |
| Product type | Manual change-over switch | |
| Rated current | 100 A | |
| Number of poles | 4 | |
| Operating positions | I-0-II | |
| Operation | Front operated | |
| Mounting type | Base mounting / DIN-rail mounting | |
| Frame size | G3 | |
| Terminal type | Integrated screw terminals | |
| Handle type | Direct-mounted knob handle | |
| Handle security | Padlockable | |
| External operation | Shaft can be fitted for door operation | |
| Application | Manual power-source transfer and isolation | |
| HS Code | 85365080 | |
| Country of Manufacture | Finland |
Frequently Asked Questions
What is the ABB OTC100G3-4BS used for?
The switch is used to manually transfer an electrical load between two independent power sources, such as a mains supply and a standby generator.
What is the rated current of the OTC100G3-4BS?
The ABB OTC100G3-4BS has a rated current of 100 A.
Why does this change-over switch have four poles?
Its four-pole configuration allows all three phase conductors and the neutral conductor to be switched together, supporting complete source separation where required.
Can the operating handle be padlocked?
Yes. The supplied direct-mounted knob handle can be padlocked to help prevent unauthorised operation and support safer electrical isolation.
Can the OTC100G3-4BS be operated through a panel door?
Yes. A shaft can be fitted to the switch for external operation through the door of a suitable electrical enclosure or switchboard.
Trusted by Panel Builders and Electrical Engineers
ABB OT Plus change-over switches provide dependable manual source selection, flexible installation and secure isolation for industrial, commercial and infrastructure power-distribution systems.
