ABB OTC63G3-4BS 63 A four-pole manual change-over switch with I-0-II operation, base and DIN-rail mounting, padlockable direct handle and screw terminals for industrial power transfer applications.
The ABB OTC63G3-4BS, product code 1SCA162744R1001, is a robust four-pole manual change-over switch engineered for safe and reliable switching between two independent power supplies. As part of the trusted ABB OT Plus Change-Over Switch range, it provides dependable I-0-II operation for industrial electrical distribution, generator installations and commercial power transfer applications.
Designed for electrical contractors, panel builders and OEM manufacturers, the OTC63G3-4BS combines compact dimensions with flexible base or DIN-rail mounting. Integrated screw terminals enable fast installation, while the supplied padlockable direct-mounted operating handle helps improve safety during maintenance and isolation procedures.
With a rated current of 63 A, a four-pole switching configuration and compliance with IEC 60947-3 and UL98 requirements, this ABB change-over switch is ideal for transferring loads safely between mains and standby generators whilst providing complete circuit isolation.
The ABB OTC63G3-4BS is designed to safely transfer electrical loads between two separate power sources whilst ensuring complete isolation through its centre OFF position. The four-pole design switches all three phases together with the neutral conductor, making it particularly suitable for standby generator installations and critical power systems.
Its durable switching mechanism, compact construction and high-quality ABB engineering provide dependable long-term performance in demanding industrial, commercial and infrastructure applications.
| Manufacturer | ABB |
|---|---|
| Series | OT Plus Change-Over Switches |
| Model | OTC63G3-4BS |
| Product ID | 1SCA162744R1001 |
| EAN | 6417019928128 |
| Product type | Manual change-over switch |
| Rated current | 63 A |
| Number of poles | 4 |
| Operating positions | I-0-II |
| Standards | IEC 60947-3 / UL98 |
| Operational voltage | Up to 600 V AC |
| Rated operational current AC-22A / AC-23A | 63 A |
| Mounting type | Base mounting / DIN-rail mounting |
| Frame size | G3 |
| Copper conductor range | 2.5 to 70 mm² |
| UL conductor range | 12 AWG to 2/0 AWG |
| Protection rating | IP20 (front) |
| Handle | Direct-mounted, padlockable knob handle |
| HS Code | 85365080 |
| Country of Manufacture | Finland |
The OTC63G3-4BS manually transfers electrical loads between two independent power supplies, such as a utility supply and a standby generator.
The ABB OTC63G3-4BS has a 63 A rated operational current.
The four-pole configuration switches all three phases together with the neutral conductor, providing complete circuit isolation where required.
Yes. The supplied direct-mounted operating handle is padlockable to help prevent accidental or unauthorised operation during maintenance.
It is commonly installed inside electrical switchboards, generator change-over panels and industrial distribution systems using base or DIN-rail mounting.
ABB OT Plus change-over switches are trusted by electrical engineers, panel builders and OEM manufacturers for dependable manual power transfer, robust construction and reliable long-term operation.
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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...