Blue insulated butt connector, BV2 crimp butt splice for 1.5-2.5mm2 wire

Insulated Butt Connectors - Blue Crimp Butt Splice (1.5-2.5mm² / 16-14 AWG)

$0.35 NZD
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Insulated Butt Connectors - Blue Crimp Butt Splice (1.5-2.5mm² / 16-14 AWG)

$0.35 NZD
Rated 4.9/5 by 20 NZN customers Verified

Shipping from $5.99 urban / $9.99 rural.

Buy more, pay less Save up to 35%

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Availability:

Minimum order quantity: 5

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Easy 30-day returns · 12-month warranty

Free Urban delivery on orders over $66.00

Urban $66 Rural $88

A butt connector joins two wires end to end in one crimp, with no twisting, no tape and no exposed copper. Push a stripped wire into each end, crimp both sides, and the tin-plated brass barrel clamps the strands while the PVC sleeve covers the whole join. This is the blue BV2 size, which takes 1.5 to 2.5 mm² wire (16 to 14 AWG), the most common gauge in 12V automotive, trailer, marine and general low-voltage work. Sold loose by the piece so you buy the exact number your job needs.


  • Joins two wires end to end in a single crimp
  • Tin-plated brass barrel for a low-resistance join
  • Fully insulating PVC sleeve, no exposed metal
  • Colour coded blue for 1.5 to 2.5 mm² (16 to 14 AWG)
  • 600V insulation, rated to 75°C
  • Funnel-shaped ends make the wire easy to feed in
  • Buy more, pay less with automatic bulk pricing
  • Stocked and dispatched fast from NZ

Buy more, pay less


5+minimum orderBase price
25+connectorsSave 15%
50+connectorsSave 25%
100+connectorsSave 35%

Specifications


TypeFully insulated butt splice connector (BV2)
Colour / sizeBlue
Wire size1.5 to 2.5 mm² (16 to 14 AWG)
Terminal bodyBrass
PlatingTin
InsulationPVC sleeve, fully insulated
Insulation voltage600V
Maximum temperature75°C
Overall lengthApprox. 26 mm
Wire entry boreApprox. 2.3 mm
Current handlingSet by the wire you crimp, not the connector
MarkingsPlain blue sleeve, no printed part markings
ConnectionCrimp, using an insulated terminal crimping tool
Sold asIndividual connectors, 5 piece minimum

What you'll receive


5+
Loose blue insulated butt connectors

Sold per piece with a 5 connector minimum, so you can set the exact quantity your job needs at checkout. Bulk discounts apply automatically at 25, 50 and 100 pieces.

Great for


Repairing a cut or broken 12V wire
Extending a loom, sensor or light lead
Boat, trailer and caravan wiring
Solar, battery and LED runs
Speaker and accessory wiring
Any permanent join you don't want to solder

How to crimp them

  1. Strip both wires

    Remove about 6 to 8 mm of insulation from the end of each wire and twist the strands together.

  2. Insert one wire into each end

    Feed the bare copper in until it reaches the middle of the barrel and the wire insulation sits against the sleeve.

  3. Crimp both ends

    Squeeze each end with an insulated terminal crimping tool, using the blue jaw position.

  4. Tug to test

    Pull firmly on both wires. A good crimp will not move. If a wire slides out, cut it back and redo it with a fresh connector.

Good to know: match the connector colour to your wire gauge for the best crimp, blue being 1.5 to 2.5 mm². These are insulated but not sealed, so for wet or exposed locations either slip adhesive lined heat shrink over the finished join or use our solder seal connectors instead. Stocked and dispatched fast from our Te Awamutu base, overseas prices without the overseas wait.

Got questions?

Frequently asked questions

Which wire sizes fit the blue one?
Blue is the mid size: 1.5 to 2.5 mm2, which is 16 to 14 AWG. Butt connectors are colour coded by gauge, so red covers 0.5-1.5mm2 (22-16 AWG) and yellow covers 4-6mm2 (12-10 AWG). Stranded or solid wire both crimp fine.
Do I need a crimping tool?
A basic insulated terminal crimper gives by far the best result and is what these are designed for. Pliers can work in a pinch, but the crimp is much easier to pull out, so a proper crimper is worth it on anything that will see vibration.
Are these waterproof?
No. The PVC sleeve insulates the crimp but it is not sealed, so water can still track along the wire. For engine bays, trailers or anything exposed, use our solder seal heat shrink connectors instead, or cover these with adhesive lined heat shrink.
What are they made of?
A brass barrel with tin plating for a low resistance crimp and corrosion resistance, inside a PVC insulating sleeve rated to 600V and a maximum of 75C.
Why is there a 5 piece minimum?
These are small, low cost parts, so we sell them from 5 pieces up to keep the per connector price low and shipping worth it. Set any quantity you like above that, and the price per connector drops automatically at 25, 50 and 100 pieces.
Can I use them on 240V mains wiring?
The insulation is rated to 600V, but fixed mains wiring in New Zealand is prescribed electrical work and must be done by a registered electrician using approved methods. In practice these are used for 12V and low voltage work: automotive, marine, trailers, solar, LED and general DC wiring.

Why buy from NZN

International prices. None of the international wait.

We're a small Kiwi-owned shop, and we stock the same boards and parts you'd usually order from overseas, for about the same price. The only real difference is they ship from Te Awamutu, so you get them in a few days instead of waiting weeks.

Run by Kiwis, here in Te Awamutu

We're NZ owned and operated, and every order is picked, packed and sent from our place in Te Awamutu, Waikato.

Get it in days, not weeks

Order before 8am and it ships the same day, otherwise within 24 hours guaranteed. No waiting three to six weeks for a parcel to crawl over from overseas.

Low prices are the goal

As a maker myself, I want New Zealand to have a genuine low-price local option for electronics, not overpriced shelves or a long wait on an international parcel.

Checked, and easy to sort if it's not right

We test things before they go out, and if something's off you've got 30 day returns, a 12 month warranty and a real person in NZ to email.

Packed and sent by a fellow maker, right here in Te Awamutu.

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