Solar Isolator Disconnect Switch 32A 1200V DC DIY 1 or 2 String with Outdoor IP66 Solar Combiner Box for PV Systems
Condition: New
Buy Now, Pay Later
As low as
$9
/ mo
Learn more
- – 4-month term
- – No impact on credit
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
30-day returns
Learn more
30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Tuesday, Aug 26
Color: LONQ-40-M20
Features
- Key Features: The LONQ-40 DC Isolator is designed to quickly and safely disconnect DC power up to 32A 1200V when installing or maintaining PV systems. Compliant with IEC60947-1&3 standards, it is the first choice for repair, maintenance, inspection and installation.
- Multiple Options: Available in a variety of sizes. It has four ports and is compatible with MC4 connectors, extension cables and waterproof connectors for all your DIY needs.
- Ease of Use: Designed to work seamlessly with the MC4 connector with a stable, robust self-locking system. Installation is as simple as plugging in the cable, saving time and effort.
- HIGH SAFETY STANDARDS: The LONQ-40 is encapsulated in a durable PC material with excellent insulation and flame retardancy. It is weatherproof (-40F-185F) and UV resistant (UL 746C). Its compact internal design takes up little space and is waterproof to IP66 for outdoor use.
- Wide range of applications: Whether it's solar panels, solar charge controllers, solar inverters or solar modules, you can integrate our DC disconnect switches to connect and control them all. It is ideal for private and commercial PV networks and perfect for your caravan or boat solar system.
Operation Mode: ON-OFF
Current Rating: 32 Amps
Operating Voltage: 1200 Volts
Contact Type: Normally Open
Connector Type: Plug In
Brand: CNLonQcom
Contact Material: Silver
International Protection Rating: IP66, IP20
Number of Positions: 4
Upper Temperature Rating: 85 Degrees Celsius
Package Dimensions : 6.5 x 4.61 x 4.41 inches; 1.81 Pounds
Item model number : LONQ-40-M20
Date First Available : September 28, 2023
Manufacturer : CNLonQcom
Country of Origin : China
Best Sellers Rank: #34,280 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden) #118 in Solar & Wind Power Parts & Accessories
#118 in Solar & Wind Power Parts & Accessories:
Customer Reviews: 4.6 4.6 out of 5 stars 58 ratings
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Aug 26
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
Color: LONQ-40-2MC4
The switch works as advertised. I caution you not to abuse it, because it is made of plastic, and feels like it will break if you use forcefully turn the dial too many times. I am not saying that this is fragile, but it's not as durable as if it were made of some type of metal. I have seen photos of broken dials, and I think the user may have just turned the dial with too much force. BTW, I am using this switch on a power station that I use nearly daily, and cut it on/off every day, using this switch. The switch has held up well, and does it's job. Just be mindful of its specs and parameters, so as you do not exceed the 30A or 1200V capacity. I can't comment on its weather protection rating, because my switch is not exposed to external weather.
...
show more
Reviewed in the United States on January 11, 2025 by D. Thomas
Color: 1String DC1200V 32A
This is a solidly made, well packaged and with accessories. Wasn't expecting all of the extras packaged with it which was a nice surprise. Everything you'll need to get it installed quickly and securely. Worth the money for sure.
Reviewed in the United States on November 27, 2024 by A. Womack
Color: 1String DC1200V 32A
This worked very well for my mobile solar installation. I'd buy it again. I do believe it's watertight. Which can be extremely important when regularly working at around 78 volts raw output from series-wired panels.
Reviewed in the United States on January 24, 2025 by Jim
Color: LONQ-40-M20
I installed this on my boat as a means of disconnecting the solar array from the solar charge controller. it's generally recommended to cover the solar panels prior to disconnection or do it at night, but this is not always feasible out on the water. This switch provides a way to disconnect solar panels very quickly should it be necessary. For example, I've had charge controller (not the ones shown) malfunction and send current TO the solar panels rather than collecting current from them. The switch also allows dual pole disconnect meaning both positive and negative leads are disconnected simultaneously which reduces the chances of a voltage spike. Note: The photo does not show ground wires connected too the chassis ground posts on the charge controllers. This will be completed prior to utilizing the system. Overall, this appears to be a well made switch that feels solid when the knob is rotated from one position to the other. Look at dimensions carefully before ordering as it's fairly large.
...
show more
Reviewed in the United States on April 25, 2024 by Smart Dude Smart Dude
Color: LONQ-40-2MC4
These were exactly what I needed but the assembly left a little to be desired. I had to disassemble a couple of the units I purchased to tighten the connectors to the housing so they would actually be watertight. Now that everything is installed and wired they perform as expected.
Reviewed in the United States on February 28, 2025 by RJ
Color: 1String DC1200V 32A
This component is oversized for what it needs to do. Check the dimensions, it’s big. Not exactly convenient to mount as the case is poorly designed for a simple screw or bolt on connection. But I really love it. It’s a big loud on / off switch that leaves no doubt where it is set. Easy solar mc4 connections, and came with extra connectors = bonus.
...
show more
Reviewed in the United States on March 4, 2025 by Justin Jackson
Color: 1String DC1200V 32A
The unit seems like good quality. The plastic case seems very sturdy and switch seems well made and properly terminated with 2 series poles used on each leg = 4 poles total for the disconnect - this should withstand at least 1000V. The lockout will not allow a typical lock but only a mini lock or zip tie.
...
show more
Reviewed in the United States on December 2, 2024 by Kawal
Color: LONQ-40-M20
I have gotten to where I install quite a few of these. The mechanism inside appears to be pretty decent. There is a lock that won't let the switch be in the on position with the cover off but that is easy as 4 screws to remove. It comes with a hodgepodge of unnecessary components that fit really neatly in an old cashew container....or 2. Out of about a dozen so far, I have only ever had one with a bad terminal that wouldn't work but I am only using 2 of the four so that was no deal breaker. All in all... it will work until something better comes along. I am using it on a dc circuit between 30 and 300 volts DC.
...
show more
Reviewed in the United States on February 16, 2025 by Blue-Collar