---
product_id: 17673872
title: "Gardner Bender GSW-121 Heavy-Duty Electrical Toggle Switch, SPST, ON-OFF, 20 A/125V AC, Spade Terminal"
brand: "gardner bender"
price: "S$14"
currency: SGD
in_stock: true
reviews_count: 13
category: "Gardner Bender"
url: https://www.desertcart.sg/products/17673872-gardner-bender-gsw-121-heavy-duty-electrical-toggle-switch-spst
store_origin: SG
region: Singapore
---

# 20A max current 75°C max temp rating Standard spade terminals Gardner Bender GSW-121 Heavy-Duty Electrical Toggle Switch, SPST, ON-OFF, 20 A/125V AC, Spade Terminal

**Brand:** gardner bender
**Price:** S$14
**Availability:** ✅ In Stock

## Summary

> ⚡ Switch to power, precision, and peace of mind!

## Quick Answers

- **What is this?** Gardner Bender GSW-121 Heavy-Duty Electrical Toggle Switch, SPST, ON-OFF, 20 A/125V AC, Spade Terminal by gardner bender
- **How much does it cost?** S$14 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/17673872-gardner-bender-gsw-121-heavy-duty-electrical-toggle-switch-spst)

## Best For

- gardner bender enthusiasts

## Why This Product

- Trusted gardner bender brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Sleek & Sturdy Design:** Compact 1.13 x 0.63 x 1.05 inch form factor with a satisfying tactile click
- • **Powerhouse Performance:** Handles up to 20 amps at 125V AC for reliable heavy-duty use
- • **Universal Compatibility:** Fits standard 1/2-inch mounting holes with easy spade terminal connections
- • **Heat-Resistant Durability:** Operates safely at temperatures up to 75°C, built to last under pressure
- • **Industrial-Grade Reliability:** Perfect for emergency lighting and tough industrial equipment demands

## Overview

The Gardner Bender GSW-121 is a heavy-duty SPST toggle switch rated for 20 amps at 125V AC, designed for industrial and emergency lighting applications. Featuring a heat tolerance up to 75°C and standard spade terminals, it ensures reliable, long-lasting performance in demanding environments.

## Description

Product Description Toggle Switches. Versatile toggle switch family with multiple position configurations. Available in single or double pole. Perfect for industrial equipment or emergency lighting. 1⁄2-Inch mounting hole required. Specifications:10 A, 277 V AC / 20 A, 125 V AC; 75°C max. temp rating. From the Manufacturer Toggle Switches. Versatile toggle switch family with multiple position configurations. Available in single or double pole. Perfect for industrial equipment or emergency lighting. 1⁄2-Inch mounting hole required. Specifications:10 A, 277 V AC / 20 A, 125 V AC; 75°C max. temp rating

Review: Works and looks great - Works like a charm on my isolation transformer. Good and sturdy and clicks sexy
Review: Power switch. - So far, this is a good replacement switch for my incubators. Make sure you check the specs.

## Features

- Perfect for industrial equipment or emergency lighting
- Specifications: 10 A 277 V AC / 20 A 125 V AC
- 75°C max. temperature rating
- Terminal Type: Spade
- Standard nut size, 15/32 - 32 inch.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| AC Adapter Current | 20 Amps |
| ASIN | B000HEIY1Q |
| Best Sellers Rank | #6,517 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Toggle Switches |
| Brand | Gardner Bender |
| Current Rating | 20 Amps |
| Date First Available | January 8, 2007 |
| Insulation Resistance | 100 Megaohms |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.12 ounces |
| Item model number | GSW-121 |
| Manufacturer | Actuant |
| Material | Copper |
| Mounting Type | Surface Mount |
| Operating Voltage | 125 Volts (AC) |
| Operation Mode | OFF-NONE-ON |
| Product Dimensions | 1.13 x 0.63 x 1.05 inches |
| Specification Met | Ul |
| Terminal | Spst |
| UPC | 032076021221 |
| Voltage | 277 Volts |

## Product Details

- **Brand:** Gardner Bender
- **Material:** Copper
- **Mounting Type:** Surface Mount
- **Terminal:** Spst
- **Voltage:** 277 Volts

## Images

![Gardner Bender GSW-121 Heavy-Duty Electrical Toggle Switch, SPST, ON-OFF, 20 A/125V AC, Spade Terminal - Image 1](https://m.media-amazon.com/images/I/71XvdVqe1yL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works and looks great
*by E***V on November 12, 2025*

Works like a charm on my isolation transformer. Good and sturdy and clicks sexy

### ⭐⭐⭐⭐⭐ Power switch.
*by A***L on January 13, 2026*

So far, this is a good replacement switch for my incubators. Make sure you check the specs.

### ⭐⭐⭐⭐⭐ It works.
*by N***E on November 25, 2025*

Works as described. It fit perfectly in the space.

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.sg/products/17673872-gardner-bender-gsw-121-heavy-duty-electrical-toggle-switch-spst](https://www.desertcart.sg/products/17673872-gardner-bender-gsw-121-heavy-duty-electrical-toggle-switch-spst)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-02-27*