What is the voltage rating for these connectors? can they be used for 120v ac household wiring?

Voltage for these connectors are less important than the current going through them. They are designed to to far exceed the max current rating for the wires they are connecting. I work on boats and use them regularly for 120 vac and 12&24 vdc. I do not recommend using them on household wire. They are designed to connect stranded wire and although they will crimp to a solid core wire common for houses the industry standard in houses is to use wire nuts. Also most building codes (for both boats and houses) require all connections for ac wiring to be in a mounted box or isolated in some way. A butt connector doesn't count.

What is a good crimper for these?

The best crimper to use has groves on one side and studs on the opposite side. When you crimp the connector the stud compresses into a the connector and makes a 100 % connection. Also you only need to strip a quarter inch of insulation off the wire.

I really like the product. But this plastic case is already breaking at the hindges then I will have all of these connectors in a bag....

Home Depot sells a nice plastic box for around $10 that works great.

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TICONN 250 Pcs Heat Shrink Wire Connectors, Marine Crimp Ring Terminal Kit

TICONN 250 Pcs Heat Shrink Wire Connectors, Marine Crimp Ring Terminal Kit

Product ID: 176312980

Details

Color
Red Blue
Connector Type
Crimp
Contact Material
Copper
Insulation Material
Polyethylene
Terminal
Spade Ring

🌊360° waterproof seal

🔗250 pcs secure connectors

🔥3:1 heat shrink ratio

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Description

🔧 Seal the deal with connectors that never quit!

UNBREAKABLE BOND - One-piece tinned copper barrels ensure minimal voltage drop and maximum current flow for flawless connections.
VERSATILE FIT GUIDE - Supports stud sizes #10 to 3/8” and common bolt patterns, ensuring a perfect fit every time.
WEATHERPROOF WARRIOR - Dual-wall heat shrink with adhesive creates a 360° moisture barrier—perfect for marine and outdoor use.
COLOR CODED EFFICIENCY - Red, blue, and yellow connectors match wire gauges 22-10 AWG for lightning-fast identification on any project.
MARINE GRADE DURABILITY - Built to withstand salt spray, engine heat, and ground moisture—ideal for boats, vehicles, and rugged environments.

The TICONN 250 Pcs Heat Shrink Wire Connectors kit offers a comprehensive, marine-grade assortment of corrosion-resistant, color-coded terminals with a 3:1 heat shrink ratio and 360° waterproof seal. Designed for secure, high-current electrical connections in automotive, marine, and outdoor applications, this kit ensures durable, reliable performance with easy identification and versatile fit options.

Specifications

ASIN	B07ZPF1TTX
Best Sellers Rank	#473 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Circular Connectors
Date First Available	October 28, 2019
Item Weight	15.5 ounces
Item model number	TICONN 250Pcs
Manufacturer	TICONN
Product Dimensions	7.7 x 5.4 x 1.7 inches

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1065 Kč

Duties & taxes included

In stock

Sold byAmazon Czech RepublicDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Czech Republic.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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