ABB OTC63G2-3BS 63 A 3-pole manual change-over switch for safe transfer between power sources in industrial and commercial electrical installations.
The ABB 1SCA162734R1001, also known as the OTC63G2-3BS, is a high-quality 63 A 3-pole manual change-over switch designed for safe transfer between two power sources in industrial and commercial electrical installations. As part of the trusted ABB OT Plus Change-Over Switch range, it provides dependable switching performance for generator changeover systems, distribution boards, OEM machinery and industrial control panels.
Featuring a front-operated mechanism, the OTC63G2-3BS supports both base mounting and DIN rail mounting, providing installation flexibility for panel builders and electrical contractors. The switch is supplied with a padlockable direct-mounted knob handle, while an optional operating shaft allows door-mounted external operation. Integrated screw terminals with IP20 front protection simplify installation and improve operator safety.
With a 63 A thermal current, 63 A AC-22A / AC-23A operational rating and a compact G2 frame, the OTC63G2-3BS delivers reliable source transfer and long-term performance in demanding industrial environments.
Manual change-over switches allow electrical loads to be safely transferred between two independent power sources, such as the utility supply and a standby generator. The ABB OTC63G2-3BS provides positive switching action, dependable electrical isolation and reliable long-term operation for critical power applications.
Its compact construction, industrial-grade contacts and flexible mounting options make it ideal for generator installations, building services and industrial automation systems where safe manual source transfer is essential.
| Manufacturer | ABB |
|---|---|
| Series | OT Plus Change-Over Switches |
| Model | OTC63G2-3BS |
| Manufacturer Part Number | 1SCA162734R1001 |
| Product type | Manual change-over switch |
| Rated thermal current (Ith) | 63 A |
| Rated operational current (AC-22A / AC-23A <415 V) | 63 A / 63 A |
| Number of poles | 3 |
| Frame size | G2 |
| Copper conductor capacity | 1.5 to 35 mm² |
| Mounting type | Base or DIN rail mounting |
| Terminal type | Screw terminals with IP20 front protection |
| Handle type | Padlockable direct-mounted knob handle |
| External operation | Compatible with optional operating shaft |
| Dimensions (H × W × D) | Approx. 109 × 100 × 96 mm |
| HS Code | 85365080 |
| Country of Manufacture | Finland |
The OTC63G2-3BS is a manual change-over switch used to safely transfer electrical loads between two separate power sources, such as the mains supply and a standby generator.
The switch has a 63 A rated thermal current and is rated 63 A for AC-22A and AC-23A applications.
This model features a 3-pole configuration for three-phase electrical systems.
Yes. The switch is suitable for both base mounting and DIN rail mounting.
Yes. A padlockable direct-mounted operating handle is supplied as standard. External operating accessories are available separately.
ABB OT Plus change-over switches are trusted by panel builders, electrical contractors and OEM manufacturers for dependable source transfer, robust construction and reliable long-term industrial performance.
● Service Agreements
Credit Accounts
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
● frequently asked questions
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
● latest blog
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...