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 250Pcs Heat Shrink Wire Connectors, Waterproof Automotive Marine Electrical Terminals Kit, Crimp Connector Assortment, Ring Fork Spade Butt Splices

Product ID: 176312980

Details

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

⚡Minimal voltage drop

💧Waterproof 360° seal

🔧250pcs versatile kit

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Description

⚡ Seal the deal with every connection — don’t get left in the dark!

UNMATCHED DURABILITY - Thick tinned copper barrels resist corrosion and prevent wire slippage for long-lasting reliability.
ALL WEATHER PROTECTION - Dual-wall heat shrink tubing with flame-retardant, waterproof seal keeps connections safe even underground.
MARINE AUTOMOTIVE READY - Certified for harsh environments—perfect for boats, vehicles, and demanding electrical projects.
COMPREHENSIVE CONNECTOR VARIETY - Includes 5 connector types and color-coded sizes for wires AWG 22-10, covering every project need.
OPTIMIZED ELECTRICAL PERFORMANCE - Premium copper barrels ensure strong crimps with minimal voltage drop and high current flow.

The TICONN 250Pcs Heat Shrink Wire Connectors kit offers a professional-grade assortment of waterproof, corrosion-resistant electrical terminals designed for automotive, marine, and home projects. Featuring thick copper barrels and dual-wall heat shrink tubing with a 360° seal, this kit ensures secure, durable crimps with minimal voltage drop across a wide range of wire sizes and connector types.

Specifications

ASIN	B07ZPF1TTX
Best Sellers Rank	#278 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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$49.17

Duties & taxes included

In stock

Sold byAmazon British Virgin IslandsDelivered 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 British Virgin Islands.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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