Why Choose the ABB OT125G3-4DSN1 Switch Disconnector?
The ABB OT125G3-4DSN1 (SKU: 1SCA162533R1001) is a robust 4-pole door-mounted switch disconnector designed to provide safe, dependable electrical isolation for industrial machinery, commercial switchboards and low-voltage power distribution systems. As part of the proven ABB OT Plus switch disconnector range, it delivers reliable switching performance, compact dimensions and long-term durability for demanding industrial applications.
Designed specifically for door-mounted installations, the OT125G3-4DSN1 features integrated screw terminals with IP20 protected terminal clamps from the front for improved installer safety. It is intended for use with ABB external operating handles and shafts (sold separately), making it ideal for enclosed control panels and switchgear assemblies. The N1 configuration incorporates the neutral pole on the left-hand side for applications requiring neutral isolation.
With a rated operational current of 125 A, a 4-pole configuration and a maximum operational voltage of 690 V AC, the OT125G3-4DSN1 provides dependable isolation for three-phase systems with neutral across industrial automation, motor control centres and commercial electrical installations.
Key Advantages
- Heavy-duty 4-pole door-mounted switch disconnector.
- 125 A rated operational current for demanding industrial applications.
- Left-hand fourth neutral pole (N1) for complete circuit isolation.
- Door-mounted design keeps operating controls safely outside the enclosure.
- Protected IP20 terminal clamps improve installation safety.
- Reliable ABB OT Plus construction ensures long service life.
Key Features
- ABB OT Plus switch disconnector series.
- Model: OT125G3-4DSN1.
- Order code: 1SCA162533R1001.
- 125 A rated operational current.
- 4-pole configuration (N1 left-hand neutral).
- Door-mounted installation.
- Integrated screw terminal connections.
- Compatible with ABB external operating handles and shafts.
- IP20 protected front terminal clamps.
- Compact G3 frame.
Reliable Electrical Isolation for Industrial Installations
The ABB OT125G3-4DSN1 provides a safe and visible means of isolating electrical circuits before maintenance and servicing. Its door-mounted design enables operators to disconnect power externally without opening the enclosure, improving personnel safety while reducing downtime.
Part of ABB's proven OT Plus family, this switch disconnector combines dependable switching performance, robust construction and straightforward installation, making it an excellent choice for electrical contractors, OEM manufacturers and panel builders.
Typical Applications
- Industrial control panels.
- Motor control centres.
- Low-voltage power distribution systems.
- OEM machinery.
- Commercial switchboards.
- Industrial automation systems.
