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

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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

Product ID: 368890298

⚡40A heavy-duty current capacity

🔥Class F coil insulation up to 155°C

🛠️UL tested 1,000,000 mechanical cycles

42267 Ft

Duties & taxes included

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Sold byAmazon HungaryDelivered 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.

Specifications

ASIN	B0888DQ7X8
ASIN	B0888DQ7X8
Batteries Required?	No
Best Sellers Rank	#101,735 in Electronics ( See Top 100 in Electronics ) #1,263 in Power Strips & Surge Protectors
Country of origin	China
Customer Reviews	4.7 4.7 out of 5 stars (133)
Customer reviews	4.7 4.7 out of 5 stars (133)
Date First Available	5 March 2021
Date First Available	5 March 2021
Item Weight	495 g
Item model number	DRC-3XU04CG
Item model number	DRC-3XU04CG
Manufacturer	sunlee controls
Manufacturer	sunlee controls
Material	cadmium
Product Dimensions	10 x 6.5 x 8.5 cm; 495 g
Product Dimensions	10 x 6.5 x 8.5 cm; 495 g
Size	3P 40A 208/240VAC

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