Wire to load or line? Instructions said load. I watched a video and this electrician said these devices should go on line. So which is right?

depends on what you are using it on if a 120 appliance you use the green and one black black to black or to hot side the green to common or ground and wire nut unused line only if it is only used on 120 volts if 230 volts one black wires go to each hot side of what you are connecting to or to both hot sides and the green goes to ground or a black wire one to L1 and one to L2 green goes to ground

will this flip a15 amp breaker?

Possibly. It depends on the severity of any power surge. The instructions (that come with this and are also on the Ditek website) say for Type 2 usage "minimum 20 amp circuit breaker is required". The wires on the unit are AWG 12 stranded. I'm using 30A CB in my service panel application. I'm also planning to install a second one at my outside HVAC compressor disconnect which has a 60A CB. I'm a homeowner not an electrician. I would say if it trips your 15A CB during a power surge then you didn't get optimal protection that day.

Can this be mounted outside on the side of the disconnect?

The spec sheet for this SPD states a minimum 20 amp circuit breaker. So will this be ok on a disconnect with a 30 amp breaker?

Does this unit come with a locknut? One reviewer has said no. If no where do you buy one? Thanks

Yes it does come with a locknut, but also 3/4 locknut works.

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

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DITEK DTK-120/240CM+ Surge ARRESTOR, Parallel Protector, Multi-Purpose, NEMA 4X, UL1449 Listed, SPD, Type 1, 2W(+G), 120/240VAC

DITEK DTK-120/240CM+ Surge ARRESTOR, Parallel Protector, Multi-Purpose, NEMA 4X, UL1449 Listed, SPD, Type 1, 2W(+G), 120/240VAC

Product ID: 39006959

Details

Brand
Ditek
Color
black
Total Power Outlets
4
Voltage
240 Volts
Special Feature
Surge

⚡Surge Protection

🏢NEMA 4X Rated

🔌4 Outlets

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C$6695

Duties & taxes included

In stock

Sold byAmazon NicaraguaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Power Up Your Protection!

ROBUST BUILD QUALITY - Constructed from durable Acrylonitrile Butadiene Styrene and Polycarbonate materials.
COMPACT LIGHTWEIGHT - Easily fits into any space with dimensions of just 4"L x 3"W and weighing only 0.19 lbs.
EFFORTLESS INSTALLATION - Type B plug ensures a seamless connection to your power supply.
VERSATILE COMPATIBILITY - Designed to protect a wide range of devices in offices, restaurants, and more.
UNMATCHED SURGE PROTECTION - Guard your devices against unexpected power spikes with UL1449 certification.

The Ditek DTK-120/240CM+ Surge Arrestor is a multi-purpose surge protector designed for both residential and commercial use. With a compact design, it features four outlets and is rated for 240 volts, ensuring reliable protection for your valuable electronics. Its NEMA 4X rating makes it suitable for various environments, while its lightweight construction allows for easy installation.

Specifications

ASIN	B001ULNGSQ
Amperage	15 Amps
Best Sellers Rank	#10,984 in Electronics ( See Top 100 in Electronics ) #101 in Surge Protectors
Brand	Ditek
Color	black
Compatible Devices	most devices
Customer Reviews	4.7 out of 5 stars 327 Reviews
Enclosure Material	High impact plastic
Item Dimensions L x W	4"L x 3"W
Item Weight	0.57 Pounds
Manufacturer	DITEK
Mfr Part Number	DTK-120/240CM+
Model Number	120/240CM+ #2
Number of Outlets	4
Number of Ports	4
Other Special Features of the Product	Surge Protection
Plug Type	Type B
Power Plug Type	Type B - 3 pin (North American)
Product Dimensions	4"L x 3"W
Recommended Uses For Product	Apartment, Hotel, Office, Restaurant, TV
Shape	Rectangle
Special Feature	Surge Protection
Surge Protection Rating	2000 Joules
Total Power Outlets	4
UPC	782980505750
Unit Count	1.0 Count
Voltage	240 Volts

Reviews

E**C

Ductless mini-split protection

Installed and powered up as required. Good that mfg lists ductless AC units as an application, which makes it meet code.

4.04.2026

D**S

Great product, easy installation

Perfect! The DIY installation was straight forward and basically very easy. No issues at all. I did pigtail the wires so there was only one wire attached to each of the two connecting lugs. I also like the fact that there is a visable clue that the unit is functining properly via the green LED light. The AC company I use for maintenace cleaning made a very compelling discussion for having an HVAC surge protector installed. But unfortunately they were quoting over $300 to install one. The ease of the installation and the cost of this actual product made this purchase a perfect alternative to the AC company.

1.04.2025

M**E

Worth the money

Easy installation

17.12.2025

S**N

Easy to install

Own many. Easy to DIY install.

6.04.2026

J**N

As advertised

Perfect

27.02.2026

Y**Z

Mejor empaque

Todo se ve según la descripción. Fácil instalación. Ahora a esperar que cumpla con su función. Mejoraría el empaque porque es muy débil. El artículo merece un empaque más robusto, mejor protección. Por eso califico con 4 estrellas

28.05.2025

D**D

Great price for critical protection.

Easy to install. Installs in about 10 minutes.

30.06.2025

B**Z

Works great no issues

Works as it should, used on mini split installation

7.12.2025

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