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1SCA162739R1001 ABB OTC30G3-3BS OT Plus Panel Mounted Switch Disconnector
ABB OTC30G3-3BS 30 A 3-pole I-0-II manual change-over switch with base or DIN rail mounting and a padlockable direct-mounted handle.
Why Choose the ABB 1SCA162739R1001 OTC30G3-3BS Change-Over Switch?
The ABB 1SCA162739R1001, also known as the OTC30G3-3BS, is a robust 30 A 3-pole manual change-over switch designed for dependable transfer between two independent electrical power sources. Part of the ABB OT Plus change-over switch range, it is suitable for generator change-over panels, distribution systems, industrial control equipment and OEM machinery.
Its front-operated I-0-II mechanism allows an electrical load to be connected to either of two supplies, with a defined OFF position between them. This break-before-make operation helps prevent the two power sources from being connected simultaneously during manual transfer.
The OTC30G3-3BS features a compact G3 frame, integrated screw terminals and a direct-mounted padlockable knob handle. It supports base mounting and DIN rail installation, while an optional operating shaft can be fitted for external operation through an enclosure door.
Key Advantages
- Dependable 30 A manual power-source transfer.
- 3-pole configuration for three-phase electrical systems.
- Clear I-0-II operating positions.
- Break-before-make switching helps prevent source overlap.
- Suitable for base or DIN rail mounting.
- Padlockable direct-mounted operating handle included.
Key Features
- ABB OT Plus change-over switch series.
- Model: OTC30G3-3BS.
- Manufacturer Part Number: 1SCA162739R1001.
- Rated current: 30 A.
- 3-pole manual change-over configuration.
- Front-operated switching mechanism.
- I-0-II operating sequence.
- Base or DIN rail mounting.
- Integrated screw terminals.
- Padlockable direct-mounted knob handle supplied.
- Optional shaft for enclosure-door operation.
Reliable Manual Power Source Transfer
The ABB OTC30G3-3BS enables an electrical load to be transferred manually between two separate supplies, such as the normal mains source and a standby generator. Its positive I-0-II switching sequence provides a clearly defined OFF position between the two connected sources.
The three-pole arrangement is designed for switching three-phase conductors simultaneously. Its compact construction and flexible mounting options make it suitable for both new panel designs and replacement applications where dependable manual source selection is required.
Typical Applications
- Mains-to-generator change-over panels.
- Three-phase standby power systems.
- Industrial control panels.
- Electrical distribution boards.
- OEM machinery and equipment.
- Alternative and temporary power installations.
Technical Specifications
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| Mounting Type | DIN rail | |
|---|---|---|
| Product Series | ABB OT Plus | |
| Device Type | Switch Disconnector | |
| Poles | 3-pole | |
| Manufacturer | ABB | |
| Series | OT Plus Change-Over Switches | |
| Model | OTC30G3-3BS | |
| Manufacturer Part Number | 1SCA162739R1001 | |
| Product type | Manual change-over switch | |
| Rated current | 30 A | |
| Number of poles | 3 | |
| Operating positions | I-0-II | |
| Switching sequence | Break before make | |
| Frame size | G3 | |
| Operation | Front operated | |
| Mounting type | Base or DIN rail mounting | |
| Terminal type | Integrated screw terminals | |
| Conductor material | Copper | |
| Handle type | Padlockable direct-mounted knob handle | |
| Padlock diameter | Up to 6 mm | |
| External operation | Optional operating shaft available | |
| EAN | 6417019928074 | |
| HS Code | 85365080 | |
| Country of Manufacture | Finland |
Frequently Asked Questions
What is the ABB 1SCA162739R1001 used for?
The OTC30G3-3BS is used to transfer a three-phase electrical load manually between two independent power sources, such as a mains supply and a standby generator.
What is the current rating of the OTC30G3-3BS?
The ABB OTC30G3-3BS has a rated current of 30 A.
How many poles does this change-over switch have?
This model has a 3-pole configuration for simultaneously switching three-phase conductors.
What do the I-0-II positions mean?
Position I connects the load to the first supply, position 0 disconnects the load and position II connects it to the second supply.
Can the OTC30G3-3BS be mounted on a DIN rail?
Yes. The unit is designed for either base mounting or DIN rail mounting.
Is an operating handle included?
Yes. A direct-mounted padlockable knob handle is supplied. A separate shaft may be used for external enclosure-door operation.
Trusted by Electrical Professionals Worldwide
ABB OT Plus change-over switches are trusted by panel builders, electrical contractors and OEM manufacturers for dependable source selection, compact installation and reliable industrial performance.
