How do I know if this is the right contactor for my equipment?

If your old contactor has a 240V 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.

Can I use this on irrigation systems, deep well pumps, Industrial curing ovens, sauna heaters, gymnasium lighting?

It's designed for these "Line Voltage Control" applications. Because it features a 208/240V Coil, it matches the high-voltage power source used by this equipment, eliminating the need for a step-down transformer. Make sure coil voltage match.

Does this contactor support Auxiliary Contacts?

Yes. This model features standard mounting points on the side for adding auxiliary contact blocks (Snap-on type), check our SUNLEE Auxiliary switch.

I have a 24V thermostat. Will this work for my AC?

This contactor has a 240V Coil. Most residential thermostats output a 24V signal. If you connect a 24V thermostat to this 240V coil, it will not engage. Please purchase our model with a "24V Coil" for standard HVAC applications.

My old contactor buzzes/hums — will replacing it fix that?

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

Sunlee Controls 3 Pole 40 Amp Contactor 240v Coil Oem

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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€ 86.62

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Sold byAmazon PortugalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Power up your HVAC game with Sunlee’s unstoppable contactor!

PLUG PLAY FIT - OEM compatible with Siemens 42CF35AG equivalent for seamless, hassle-free installation.
PROVEN RELIABILITY - UL-certified for 1 million mechanical and 250,000 electrical operations—built to outlast and outperform competitors.
HEAT RESISTANT COIL - Class F insulation ensures coil longevity even in extreme heat environments like attics or outdoor units.
INDUSTRIAL GRADE POWER - Handles up to 40 Amps with robust 3-pole design for demanding HVAC and machinery needs.
PREMIUM SILVER CONTACTS - 25% larger silver cadmium oxide contacts deliver superior conductivity and durability under heavy loads.

The Sunlee 3 Pole 40 Amp 240V coil contactor is a UL-recognized, industrial-grade HVAC control solution featuring high-performance silver cadmium oxide contacts and Class F coil insulation. Engineered for durability and reliability, it withstands extreme temperatures and rigorous mechanical cycles, making it the go-to choice for professionals demanding long-lasting, efficient operation in commercial and industrial settings.

Reviews

User

Works perfectly

The shipping was perfect and product was exactly as described.👍

26.06.2026

User

Inexpensive replacement

Worked perfectly

7.06.2026

User

Lo compraría de nuevo

Funcionó perfecto y después de tantos años aún sigue funcionando

1.10.2026

User

Fixed the bad one

Did good

27.04.2026

User

Worked

Fit application good. Been going a few days now.

26.04.2026

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€ 86.62

Duties & taxes included

In stock

Sold byAmazon PortugalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Portugal.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

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1 week ago

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Asin	B0888DQ7X8
Country Of Origin	China
Date First Available	5 March 2021
Item Model Number	DRC-3XU04CG
Manufacturer	sunlee controls
Product Dimensions	10 x 6.5 x 8.5 cm; 495 g

Sunlee controls 3 Pole 40 Amp contactor 240V coil OEM fits Siemens 42CF35AG equivalent DP Contactor HVAC Contactor

Description

Specifications

Reviews

Common Questions