---
product_id: 243998305
title: "UL 3 pole 40 Amp Contactor 24v coil A2L Compliant fits 42CF35AJ equivalent Definite Purpose Contactor"
brand: "sunlee"
price: "€ 63.08"
currency: EUR
in_stock: true
reviews_count: 8
category: "Sunlee"
url: https://www.desertcart.sk/products/243998305-ul-3-pole-40-amp-contactor-24v-coil-a2l-compliant
store_origin: SK
region: Slovakia
---

# 40A Power UL Certified 24V Coil UL 3 pole 40 Amp Contactor 24v coil A2L Compliant fits 42CF35AJ equivalent Definite Purpose Contactor

**Brand:** sunlee
**Price:** € 63.08
**Availability:** ✅ In Stock

## Summary

> ⚙️ Power Up Your Projects with Confidence!

## Quick Answers

- **What is this?** UL 3 pole 40 Amp Contactor 24v coil A2L Compliant fits 42CF35AJ equivalent Definite Purpose Contactor by sunlee
- **How much does it cost?** € 63.08 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/243998305-ul-3-pole-40-amp-contactor-24v-coil-a2l-compliant)

## Best For

- sunlee enthusiasts

## Why This Product

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

## Key Features

- • **Compact Design:** Measuring just 3.94 x 2.56 x 3.35 inches, it fits seamlessly into your setup.
- • **Global Compliance:** A2L compliant and UL certified for peace of mind in safety and performance.
- • **Robust Construction:** Crafted with larger silver cadmium oxide contacts for enhanced durability.
- • **Unmatched Power Handling:** Handles up to 40 amps effortlessly, ensuring your systems run smoothly.
- • **High-Performance Insulation:** Class F insulation ensures reliable operation in demanding environments.

## Overview

The SUNLEE UL 3 Pole 40 Amp Contactor with a 24V coil is designed for high-performance applications, featuring robust silver cadmium oxide contacts and class F insulation. Compact yet powerful, this UL certified contactor is perfect for professionals seeking reliability and efficiency in their electrical systems.

## Description

desertcart.com: SUNLEE UL 3 pole 40 Amp Contactor 24v coil A2L Compliant fits 42CF35AJ equivalent Definite Purpose Contactor : Industrial & Scientific

Review: Work great - Excellent value replaced original perfectly.
Review: quality item - heavy duty

## Features

- 3 pole 40 amp 24 Volt coil
- UL 508/UL 60947-4-1
- Larger Silver Cadmium Oxide Contacts
- Coils have class F insulation
- Base assembly is made from high performance Bulk (Dough) molding compounds

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | sunlee controls |
| Item Weight | 1.08 pounds |
| Product Dimensions | 3.94 x 2.56 x 3.35 inches |
| Size | 3P 40A 24VAC |
| Material | cadmium |
| Voltage | 24 Volts |
| Certification | ul |
| Batteries Included? | No |
| Batteries Required? | No |

## Images

![UL 3 pole 40 Amp Contactor 24v coil A2L Compliant fits 42CF35AJ equivalent Definite Purpose Contactor - Image 1](https://m.media-amazon.com/images/I/81RflIa9P-L.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: How do I know if this is the right contactor for my equipment?**
A: If your old contactor has a 24V Coil and is rated 40A, 30A, or 25A. This 40A model is a heavy-duty upgrade for lower amp units. Rule: Coil voltage must be exact; Amps can be higher, but never lower than your original one.

**Q: My compressor is 480V 3-Phase. Will this 24V coil contactor work?**
A: Yes. The "24V" refers to the thermostat signal (Coil), not the main power, 240V is for the motor. This contactor is rated up to 600V, so it easily handles your 480V unit.

**Q: Does this contactor support Auxiliary Contacts?**
A: Yes. This model features standard mounting points on the side for adding auxiliary contact blocks (Snap-on type), check our SUNLEE Auxiliary switch.

**Q: Can I use this contactor to control a bank of LED or ballast lights in a warehouse?**
A: Yes, absolutely. You can use it to switch three separate 120V or 277V lighting circuits simultaneously using a single 24V low-voltage signal from a timer or photosensor.

**Q: My old contactor buzzes/hums — will replacing it fix that?**
A: Often yes. Buzzing can be caused by a worn coil/armature, pitted contacts, or low control voltage. Replacing the contactor commonly resolves noise if the control voltage is stable and wiring is correct

## Customer Reviews

### ⭐⭐⭐⭐⭐ Work great
*by S***E on October 14, 2025*

Excellent value replaced original perfectly.

### ⭐⭐⭐⭐⭐ quality item
*by J***I on October 12, 2025*

heavy duty

### ⭐⭐⭐⭐⭐ Good value
*by M***C on February 11, 2024*

I bought this part to replace a 30 year old contactor that was controlling three banks of baseboard heaters in my home. The old ITE contactor was an extremely solid and heavy component and the Sunlee contactor was much lighter and smaller than the ITE component. The Sunlee current ratings were actually more than double what I required and overall worked perfectly for my application. The noise from the contactor is less than for my old contactor and the coil current is lower. The coil connection is not marked, but is obvious. One warning, the bottom mounting plate of the contactor actually holds in the spring for the contacts, so I recommend not removing it.

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.sk/products/243998305-ul-3-pole-40-amp-contactor-24v-coil-a2l-compliant](https://www.desertcart.sk/products/243998305-ul-3-pole-40-amp-contactor-24v-coil-a2l-compliant)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-02-06*