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

🛠️Silver alloy contacts for durability

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€ 92.54

Duties & taxes included

In stock

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Description

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

BUILT TO LAST - Silver alloy contacts and Class F coil insulation ensure longevity
POWERHOUSE PERFORMANCE - Handles up to 40 Amps for reliable HVAC operation
UNIVERSAL COMPATIBILITY - Seamlessly replaces major brands like Mars, Packard, and Goodman
CERTIFIED SAFETY QUALITY - UL and IEC/EN 60947 certified for peace of mind
QUICK SECURE INSTALLATION - Clamp and quick-connect terminals for hassle-free setup

The SunLee 2 Pole 40 Amp Contactor with a 120V coil is a robust, UL-certified HVAC component designed for seamless replacement of multiple major brand contactors. Featuring silver alloy contacts, Class F coil insulation, and quick-connect terminals, it ensures durable, efficient, and safe operation in air conditioning and heat pump systems.

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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