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

💧360° waterproof dual-wall insulation

🔥3:1 heat shrink ratio with flame-retardant seal

🔩250-piece comprehensive kit

6201 som

Duties & taxes included

In stock

Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Seal the deal with TICONN – where every connection counts!

UNMATCHED DURABILITY - Thick, one-piece tinned copper barrels prevent corrosion and wire slippage for a lifetime of secure connections.
ALL WEATHER PROTECTION - Dual-walled heat shrink tubing with heat-activated sealant ensures a flame-retardant, waterproof, and underground-ready seal.
READY FOR ANY CHALLENGE - Perfect for automotive, marine, home, and scientific applications—engineered to keep your wiring flawless and future-proof.
VERSATILE COMPATIBILITY - Covers wire sizes AWG 22-10 with five connector types including butt, ring, fork, and quick disconnects for any project.
PROFESSIONAL GRADE PERFORMANCE - Minimal voltage drop and high current flow guarantee efficient, safe electrical connections every time.

The TICONN 250Pcs Heat Shrink Wire Connectors kit offers a premium assortment of waterproof, flame-retardant electrical terminals designed for professional-grade crimping. Featuring thick, corrosion-resistant copper barrels and a 3:1 heat shrink tubing with a 360° seal, this kit supports wire sizes AWG 22 to 10 across five connector types, making it ideal for automotive, marine, and home electrical projects requiring durable, secure, and efficient connections.

Specifications

ASIN	B07ZPF1TTX
Best Sellers Rank	#242 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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