N Type ATS Automatic Transfer Switch for Generator Industrial Mining - Replaces SmartGen SGQ125A-4P

N Type ATS Automatic Transfer Switch for Generator Industrial Mining - Replaces SmartGen SGQ125A-4P

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Product Details

N Type ATS Automatic Transfer Switch for Generator Industrial Mining - Replaces SmartGen SGQ125A-4P

Replacement Part Number: SGQ 125A-4P, SGQ125A-4P, SGQ125A4P

Product Description:
SGQ Automatic Transfer Switch (ATS) is designed for reliable automatic power transfer in dual power supply systems. It supports operating voltages up to AC 660V (50/60Hz) and DC 250V, and allows on-load switching to ensure continuous power supply during outages.

The SGQ ATS series covers a wide current range from 40A to 2000A, available in 3-pole (3P) and 4-pole (4P) configurations to meet different system requirements. According to current rating, the ATS is classified into N Type (40–125A), T Type (160–400A), and M Type (630–2000A).

Featuring an electromagnetic drive structure and PC-class two-stage switching design, the SGQ ATS provides fast and reliable transfer between two power sources with a transfer time ≤ 80ms. Power sources can include utility power, auto-start generator sets, battery systems, or other backup power supplies.

Structure & Features:
Electromagnetic Coil Drive
Ensures fast and stable switching with high reliability.

Electrical & Mechanical Interlocking
Prevents simultaneous connection of two power sources, ensuring system safety.

V-Type Moving Contact Design
Eliminates short-circuit risk during power transfer.

Energy-Saving Coil Operation
Coils are energized only during switching, significantly extending service life.

N / T Type: Double-coil structure

M Type: Single-coil structure

No External Control Power Required
Control power is supplied directly from the priority AC/DC source.

Clear Status Indication
Equipped with both electrical and mechanical position indicators.

Auxiliary Contacts
Provides 2 sets of voltage-free NO/NC auxiliary contacts for remote monitoring and control.

Applications:
Fit For Diesel Or Gas Generator Sets, Industrial And Manufacturing Plants, Mining Operations

Disclaimer:
This part is not manufactured by or affiliated with SmartGen. It is an independent aftermarket product.

Product Highlights
Brand: FridayParts
Compatible Model Brand: For OTHER BRAND
Replacement Part Number: SGQ125A-4P
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Top Reviews

user
Grant
Reviewed on 15/01/2026
Reliable Performance, Smooth Power Transfers

Installed this ATS for our backup generator at the workshop. Setup was straightforward for a qualified electrician, and all terminals were clearly marked. It switches over smoothly during power outages with no interruption to our critical machines. The housing is solid, and the status lights make it easy to monitor. Has performed reliably through several tests and real outages. A well-built switch that does exactly what it should.

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