Manual transfer switch

GDCSG-40 Manual Transfer Switch 1P/2P/3P/4P

The GDCSG-40 Manual Transfer Switch 1P/2P/3P/4P offers safe, reliable power switching between mains and generator with mechanical interlock and 40A capacity.

The GDCSG-40 Manual Transfer Switch 1P/2P/3P/4P is a compact and durable mechanical interlock switch designed to transfer power between two sources safely. With a rated current of 40A, it provides secure manual switching between mains and backup power systems such as generators or inverters.

This interlocking/manual transfer switch ensures both sources cannot operate simultaneously, preventing backfeed and electrical hazards. Made from high-grade insulating materials and copper contacts, the GDCSG-40 is engineered for stable performance, easy installation, and long service life in industrial, commercial, and residential power applications.

Product Features

  • Multi-pole design: Available in 1P, 2P, 3P, and 4P configurations for flexible wiring.
  • Rated for 40A load, supporting single-phase and three-phase power systems.
  • Mechanical interlock mechanism prevents simultaneous connection of two power sources.
  • Manual operation ensures precise control and easy maintenance.
  • Compact panel-mount structure ideal for switchboards and control panels.
  • High-durability copper contacts deliver reliable conductivity and minimal voltage drop.
  • Flame-retardant housing enhances operational safety and insulation protection.

Keywords integrated: GDCSG-40 manual transfer switch, interlocking/manual transfer switch, 1P/2P/3P/4P transfer switch.

Technical Specifications

ParameterSpecification
ModelGDCSG-40
TypeManual Transfer Switch
Poles1P / 2P / 3P / 4P
Rated Current40A
Rated Voltage220V / 380V AC
Frequency50Hz / 60Hz
Operation ModeManual
MechanismMechanical Interlock
Mounting TypePanel Mount
Housing MaterialFlame-Retardant ABS
Contact MaterialCopper Alloy
ApplicationDual Power / Generator Backup / Distribution Panels
CertificationsCE, RoHS

Applications

The GDCSG-40 manual transfer switch is ideal for switching between grid and generator power or between inverter and utility supply. It provides dependable manual control for energy transfer in emergency backup systems and industrial automation equipment.

Common Applications:

  • Generator and mains power switching in residential buildings.
  • Industrial equipment control panels and small factories.
  • Commercial lighting systems and telecommunication facilities.
  • Backup systems in workshops and warehouses.

Related long-tail phrases:
manual transfer switch for generators, dual power manual changeover switch, 40A interlocking manual transfer switch.

Why Choose Us

As a leading transfer switch manufacturer and supplier, we specialize in high-quality manual and automatic power transfer solutions.

  • Over 10 years of expertise in low-voltage power distribution.
  • OEM/ODM customization for different pole configurations and branding.
  • CE/RoHS-certified production with rigorous quality control.
  • Fast delivery and professional export packaging.
  • Reliable after-sales service and technical guidance.

Partner with us — a trusted transfer switch factory offering reliable and affordable electrical switching solutions worldwide.

FAQ

What is the minimum order quantity (MOQ)?

Our MOQ is 50 units per model. Sample orders are available for initial testing.

Can I request custom branding or pole configuration?

Yes, OEM/ODM services are available for logo, packaging, and technical adjustments.

What is your delivery time?

Orders are typically shipped within 15–25 working days depending on quantity.

Are the GDCSG-40 switches certified?

Yes, the switches comply with CE and RoHS standards to meet global requirements.

Do you offer samples for evaluation?

Yes, samples can be provided upon request. The buyer usually covers shipping costs.

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