ABB OTC80G2-4BS 80 A 4-pole I-0-II manual change-over switch with DIN rail or base mounting and a padlockable direct-mounted handle.
The ABB 1SCA162738R1001, also known as the OTC80G2-4BS, is a robust 80 A 4-pole manual change-over switch designed for reliable transfer between two independent electrical power sources. Part of the ABB OT Plus change-over switch range, it is suitable for mains-to-generator transfer, industrial distribution systems, commercial installations, control panels and OEM machinery.
The OTC80G2-4BS features a front-operated I-0-II switching mechanism and can be installed using either base mounting or DIN rail mounting. Its four-pole configuration enables simultaneous switching of three phases and neutral, making it particularly suitable for applications requiring complete separation between normal and standby supplies.
Integrated screw terminals help simplify wiring, while the supplied direct-mounted knob handle can be padlocked to support safe isolation and lockout procedures. An optional operating shaft may also be installed for external operation through an enclosure door.
The ABB OTC80G2-4BS enables an electrical load to be transferred manually between two separate supplies, such as a utility mains source and a standby generator. Its defined I-0-II operating sequence provides an intermediate OFF position to help prevent unintended connection between the two power sources.
The four-pole design switches the neutral conductor together with all three phases. This makes the unit suitable for installations where complete source separation, neutral switching or compliance with the electrical system design is required.
| Manufacturer | ABB |
|---|---|
| Series | OT Plus Change-Over Switches |
| Model | OTC80G2-4BS |
| Manufacturer Part Number | 1SCA162738R1001 |
| Product type | Manual change-over switch |
| Rated thermal current | 80 A |
| Rated operational current, AC-22A at up to 415 V | 80 A |
| Rated operational current, AC-23A at up to 415 V | 65 A |
| Number of poles | 4 |
| Operating positions | I-0-II |
| Frame size | G2 |
| Maximum operational voltage | 800 V AC |
| Conductor capacity | 1.5 to 35 mm² copper |
| Mounting type | Base or DIN rail mounting |
| Terminal type | Integrated screw terminals |
| Handle type | Padlockable direct-mounted knob handle |
| External operation | Optional operating shaft available |
| Dimensions (H × W × D) | Approximately 144 × 100 × 96 mm |
| EAN | 6417019928067 |
| HS Code | 85365080 |
| Country of Manufacture | Finland |
The OTC80G2-4BS is used to transfer an electrical load manually between two power sources, such as a mains supply and a standby generator.
It has an 80 A rated thermal current, with operational ratings of 80 A for AC-22A and 65 A for AC-23A at voltages up to 415 V.
The four-pole configuration allows all three phase conductors and the neutral conductor to be switched simultaneously.
Yes. The switch supports both base mounting and DIN rail mounting.
Yes. A direct-mounted padlockable knob handle is included. A shaft and external enclosure handle may be fitted 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 industrial performance.
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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...