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Heavy-duty SPDT toggle switch with screw terminals on card

Gardner Bender

Gardner Bender GSW-12 Heavy-Duty SPDT Toggle Switch

SKU CH-2Z45-EN77X

Heavy-duty SPDT toggle switch rated 20A at 125V AC and 10A at 250V AC with three screw terminals and UL listing

  • Product typeLight Switch
  • Heavy-duty SPDT toggle rated 20 A at 125 V AC
  • Motor-rated 3/4 HP for power tools and appliances
  • 2-speed on/on switching with three screw terminals
  • UL listed for verified safety compliance
  • Single pole double throw contact form for versatile wiring

Heavy-Duty SPDT Toggle Switch

The Gardner Bender GSW-12 is a heavy-duty single pole, double throw toggle switch rated for motor loads. It suits power tools and household appliances needing a 2-speed on/on control. UL listed for safety compliance.

Thermals, Noise and Power Draw

The switch carries 20A at 125V AC and 10A at 250V AC with a 3/4 HP motor rating. It operates silently with no moving cooling parts. Power draw depends entirely on the connected load.

Three Screw Terminals

Three screw-type terminals provide secure wire connections for the SPDT circuit. The carded packaging supplies one switch per pack. A California Proposition 65 warning applies for DEHP exposure.

How it compares

Measured against everything we stock in Electrical Switches & Dimmers, at today’s prices. Recalculated every night.

Price $4.99
Cheaper than about 96% of the 791 comparable items (median $39.99).

Specifications

Product
Brand nameGB Electrical
Product typeLight Switch

Questions about this item

How do I wire the three screw terminals on this SPDT toggle switch for a 2-speed on/on setup?

Connect the common feed to the centre screw and each load to the two outer screws; the most common mistake is swapping the common with a load wire, which leaves one speed dead.

What wear items should I expect to replace on this UL-listed heavy-duty toggle over time?

The toggle mechanism and screw-terminal contacts are the only serviceable parts; carbon tracking or loose screws after repeated 20 A cycles are the typical failure signs.

At what load does the 3/4 HP motor rating become the limiting factor during continuous use?

The 3/4 HP rating at 125/250 V AC is the first thermal limit reached under sustained motor starting current, before the 20 A/125 V or 10 A/250 V resistive limits.

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