Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
OT315E12C ABB 315A 3-Pole Manual Change-Over Switch
ABB OT315E12C is a 315 A 3-pole I-O-II manual change-over switch with a front-operated modular mechanism for reliable three-phase power source selection in low-voltage distribution systems.
£929.44
Why Choose the ABB OT315E12C Manual Change-Over Switch?
The ABB OT315E12C is a heavy-duty 315 A 3-pole manual change-over switch designed for dependable transfer between two electrical power sources in low-voltage distribution systems. As part of the ABB OT change-over switch range, it combines high-current switching capability with a front-operated modular mechanism for industrial, commercial and infrastructure installations.
The OT315E12C provides I-O-II manual change-over operation, giving operators a defined OFF position between the two source positions. This arrangement supports controlled source selection and isolation in switchboards, distribution panels and other installations where reliable manual transfer between two supplies is required.
With a rated current of 315 A and a 3-pole configuration, the OT315E12C is designed for three-phase power distribution applications. This version is supplied without the operating handle and shaft, allowing suitable ABB operating accessories to be selected separately according to the switchboard or enclosure design.
Key Advantages
- Heavy-duty 315 A manual change-over switch for demanding power distribution applications.
- 3-pole configuration designed for three-phase source switching.
- I-O-II operation provides two source positions and a defined OFF position.
- Front-operated modular mechanism supports convenient switchboard integration.
- Rated for 315 A AC-21 and AC-23 operation at 400 V.
- Handle and shaft are supplied separately, providing flexibility when configuring the operating arrangement.
Key Features
- ABB OT change-over switch series.
- 315 A rated current.
- 3-pole manual change-over configuration.
- I-O-II switching operation.
- Front-operated mechanism.
- Suitable for mounting in electrical distribution assemblies.
- Handle and shaft not included.
- Screw connection for the main contacts.
- 8 kA rated short-time withstand current.
- Suitable for high-current industrial source-transfer applications.
Reliable Manual Power Source Change-Over
Manual change-over switches provide a controlled means of selecting between two electrical supplies. The ABB OT315E12C uses an I-O-II operating arrangement, allowing the connected circuit to be placed in a defined OFF position between source selections and providing straightforward manual control of three-phase power distribution.
The OT315E12C is designed for demanding low-voltage installations requiring substantial switching capacity. Its 315 A rating, three-pole construction, 8 kA short-time withstand capability and AC-23 rating make it suitable for industrial switchboards, generator change-over arrangements and other high-current distribution applications.
Typical Applications
- Mains and alternative power source selection.
- Generator and mains manual change-over systems.
- Industrial low-voltage distribution switchboards.
- Commercial and infrastructure electrical distribution.
- Three-phase source-transfer systems.
- Manufacturing plants and industrial power installations.
Technical Specifications
Tick the specs you need, then view products that match.
| Operation | Manual | |
|---|---|---|
| Device Type | Manual changeover switch | |
| Series | OT Change-Over Switches | |
| ABB order code | 1SCA022777R0090 | |
| Product type | Manual change-over switch | |
| Rated current | 315 A | |
| Number of poles | 3 | |
| Operation | Manual | |
| Switch positions | I-O-II | |
| Operating mechanism | Front-operated modular mechanism | |
| Handle and shaft | Not included | |
| Maximum rated operational voltage | 1000 V AC | |
| Rated operational current, AC-21 at 400 V | 315 A | |
| Rated operational current, AC-23 at 400 V | 315 A | |
| Rated operational power, AC-23 at 400 V | 160 kW | |
| Rated short-time withstand current | 8 kA | |
| Main contact connection | Screw connection | |
| Front protection rating | IP20 | |
| Dimensions (H × W × D) | 185 × 221 × 203 mm |
Frequently Asked Questions
What is the ABB OT315E12C used for?
The ABB OT315E12C is used for manual change-over between two electrical power sources in three-phase industrial, commercial and infrastructure distribution systems.
What is the rated current of the OT315E12C?
The OT315E12C has a rated current of 315 A.
How many poles does the ABB OT315E12C have?
The OT315E12C is a 3-pole change-over switch designed for three-phase source-switching applications.
What switching positions does the OT315E12C provide?
The OT315E12C provides I-O-II operation, giving two source positions with a defined OFF position between them.
Are the handle and shaft included with the ABB OT315E12C?
No. The OT315E12C is supplied without the operating handle and shaft, allowing compatible ABB operating accessories to be selected separately for the installation.
Trusted by Electrical Professionals Worldwide
ABB OT change-over switches are widely used in industrial and commercial electrical distribution systems where dependable manual source selection, robust high-current switching and flexible switchboard integration are required.
