4P 250A 110V/220V Automatic Transfer Switch for Grid to AC Generator Industrial

Product Overview

This aftermarket replacement automatic transfer switch is an industrial 4-pole unit rated for 250A and designed for 110V / 220V grid-to-AC-generator transfer applications. An automatic transfer switch changes the electrical load source between a primary utility supply and a backup generator so equipment can continue receiving power during an outage. This unit references the 4P, 250A, and 110V / 220V specifications supplied in the listing title.

Key Features & Performance

• Four-pole configuration for switching the connected phases and neutral as a set
• Rated for industrial transfer duty between grid power and an AC generator
• Automatic transfer function for load changeover between supply sources
• Listed specifications of 4P, 250A, and 110V / 220V
• Used when replacing a corresponding transfer switch during maintenance or repair

Fitment & Compatibility

• for industrial grid-to-AC-generator transfer applications
• for 4-pole configurations
• for 250A rated connection points

Common Uses

• Replacing a worn or malfunctioning automatic transfer switch
• Routine maintenance of a grid and generator changeover system
• Restoring normal transfer function after the original unit fails

Technical Specifications

• Product Type: Automatic Transfer Switch
• Poles: 4P
• Current Rating: 250A
• Voltage: 110V / 220V
• General Application: Grid to AC generator

Frequently Asked Questions

Q: What does an automatic transfer switch do? A: It changes the electrical load between a primary supply and a backup generator so connected equipment can keep receiving power.

Q: How should fitment be verified? A: Compare the complete existing part number, pole count, current rating, and voltage rating of the original unit with this listing before purchase.

This is an aftermarket replacement part and is not represented as genuine or original equipment. Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number, model year, or existing part number. Verify fitment before purchase.