Can this 40A contactor replace a 30A contactor?

Yes. This 40A contactor is a safe upgrade for a 30A unit, provided the Coil Voltage (120V) and Poles match. Rule: Coil voltage must be exact; Amps can be higher, but never lower than your original one.

My equipment runs on 240V, but I have a 120V control source. Will this work?

Yes. The "120V" refers to the Coil (control) voltage only. The power poles (contacts) are rated up to 600V, so they can easily and safely switch a 240V load while being triggered by a 120V source.

Can I use this to control a bank of grow lights with a timer?

Yes, absolutely. This is ideal for switching high-power lighting loads (like HPS, MH, or LED grow lights). You can connect the 120V coil terminals to a standard wall timer or smart plug to automate your lighting setup safely.

Is this suitable for a sump pump or pool pump motor?

Yes. It is rated for 40 Amps, making it heavy-duty enough to handle the high startup current (inrush) of pump motors. Just ensure your control switch (float switch or timer) provides a 120V signal.

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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SunLee 2 Pole 40 Amp contactor 120v Coil UL 2 Pole Lighting Load 50 AMP Contactor Equivalent to 42CF15AF for Condenser Compressor HVAC Contactor

SunLee 2 Pole 40 Amp contactor 120v Coil UL 2 Pole Lighting Load 50 AMP Contactor Equivalent to 42CF15AF for Condenser Compressor HVAC Contactor

Product ID: 748145265

Details

Connector Type
Quick Connect
Contact Material
Silver Cadmium
Contact Type
Normally Open
Current Rating
40 Amps
Mounting Type
Panel Mount

⚡40 Amp heavy-duty current

🔌120V coil for universal HVAC fit

🛠️UL certified durable build

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€ 95.08

Duties & taxes included

In stock

Sold byAmazon ItalyDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Upgrade your HVAC game with SunLee’s powerhouse contactor!

BUILT TO LAST - Class F coil insulation and high-performance molding compounds ensure longevity
TRUSTED TESTED - UL certified with a 4.6-star rating from 571+ professionals
POWERHOUSE PERFORMANCE - Handles up to 40 Amps for robust HVAC control
SEAMLESS COMPATIBILITY - Replaces multiple major brands effortlessly
QUICK EASY INSTALLATION - Panel mount with quick connect and screw terminals for hassle-free setup

The SunLee 2 Pole 40 Amp Contactor features a 120V coil and silver cadmium oxide contacts designed for reliable, heavy-duty HVAC applications. UL certified and compatible with top brands like Mars, Carrier, and Goodman, it offers easy panel mounting and quick connect terminals. Engineered with class F insulation and durable bulk molding compounds, this contactor ensures long-lasting performance and quiet operation, making it a trusted choice for professionals seeking efficient and dependable HVAC control.

Specifications

ASIN	B088895GBY
Brand	SUNLEE
Brand Name	SUNLEE
Coil Resistance	360 Ohms
Coil Voltage	120 Volts (AC)
Connector Type	Clamp , Quick Connect
Contact Current Rating	40 Amps
Contact Material	Silver Alloy
Contact Type	Normally Open
Country of Origin	USA
Current Rating	40 Amps
Customer Reviews	4.7 out of 5 stars 339 Reviews
Manufacturer	sunlee controls
Minimum Switching Voltage	120 Volts (AC)
Mounting Type	Panel Mount
Operation Mode	Automatic
Specification Met	IEC/EN 60947, UL, cULus
Upper Temperature Rating	70 Degrees Celsius

Reviews

F**.

16.04.2026

M**U

10.02.2026

T**R

3.04.2026

H**H

8.01.2026

C**K

25.04.2026

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