NSPA Step Down Butt Splice Connectors

Cable Organizer Home Electrical Supplies > Heat Shrink > Heat Shrink Connectors > Step Down Butt Splices

Step Down Butt Splices

Connect 2 Different Wire Gauges In One Step

What's special about these step down butt splices ?

Allows you to connect 2 different wire gauges in one connector
Color coded using the American Wire Gauge’s standard colors for easy installation and identification
Available insulated or uninsulated to suit your application
Click here for more features

These step-down butt connectors are available in insulated or non-insulated versions to provide a splicing solution for any application. These unique connectors allow you to connect wires of 2 different gauges to each other smoothly and get a reliable connection. Each connection is color coded on its ends using standard AWG colors for easy identification and to avoid errors during installation.

Price
Features
Specifications
Learning Center
Reviews
Related Items
Share This

Crimp barrels have crimp indicators for a sure crimp every time
Equipped with a wire stop to avoid over insertion
Butt is seamless so it provides superior crimp performance and strain relief
Window in the butt provides visual confirmation of the butt being inserted
Butt splice has a uniform copper wall, so positive crimping is uniform on both sides

Heat Shrink Tubing
Material	Multiple wall polyolefin tubing with meltable, integral inner wall
Applicable Specifications	MIL-I-23053/4, Class 1
	AMS 3534
	UL File E-157227
Physical
Temperature Rating	-55°C to 110°C
Tensile Strength	2200 PSI
Longitudinal Change	+1, -10%
Recovery Temperature	135°C
Electrical
Dielectric Strength	900 Volts/Mil
Voltage Rating	600 Volts
Chemical
Corrosion Resistance	Non-Corrosive
Fungus Resistance	Non-Nutrient
Water Absorption	<0.1%

Solder (if applicable)
Melt Temperature	149°C (300°F)
Applicable Specifications	J-STD-006
Solder contains any or all of the following	Antimony, Cadmium, Copper, Indium, Silver, Iron, Aluminum, Nickel, Arsenic, Zinc, Bismuth, Gold, Tin, Lead
Flux	1%-3% RMA
Applicable Specifications	J-STD-004
Patent Numbers	Butt Connectors: US 6,838,621 B2, US 6,677,529 B1

PART # view images below	QTY / PK	AWG	WEIGHT	COLOR	PRICE / PK
Uninsulated Step Down Butt Connector
NSPA-ML56-20-BP	50	18-20 to 22-24	0.18 lbs	-	$26.28
NSPA-ML56-16-BP	50	14-16 to 18-20	0.20 lbs	-	$29.57
NSPA-ML56-14-BP	50	10-12 to 14-16	0.23 lbs	-	$42.87
NSPA-ML56-10-BP	50	8 to 10-12	0.25 lbs	-	$51.41
Vinyl Insulated Step Down Butt Connector
NSPA-WTV-56-20	50	18-20 to 22-24	0.27 lbs	Red	$29.94
NSPA-WTV-56-16	50	14-16 to 18-20	0.34 lbs	Blue	$34.37
NSPA-WTV-56-14	50	10-12 to 14-16	0.42 lbs	Yellow	$52.01
NSPA-WTV-56-10	50	8 to 10-12	0.53 lbs	Pink	$67.50
Krimpa Seal Step Down Butt Connector
NSPA-KS56-20	50	18-20 to 22-24	0.27 lbs	Red	$26.28
NSPA-KS56-16	50	14-16 to 18-20	0.34 lbs	Blue	$29.57
NSPA-KS56-14	50	10-12 to 14-16	0.42 lbs	Yellow	$42.87
NSPA-KS56-10	50	8 to 10-12	0.53 lbs	Pink	$51.41
MultiLink Step Down Butt Connector
NSPA-ML56-20	50	18-20 to 22-24	0.27 lbs	Red	$83.23
NSPA-ML56-16	50	14-16 to 18-20	0.34 lbs	Blue	$89.86
NSPA-ML56-14	50	10-12 to 14-16	0.42 lbs	Yellow	$112.37
NSPA-ML56-10	50	8 to 10-12	0.53 lbs	Pink	$186.56

RELATED ARTICLES -

HOW-TO CORNER -

How to Determine Which Product Diameter You Need

VIEW OUR GLOSSARY

CATALOG - PDF
For your convenience, we have made our brochure and catalogs available online in PDF format. Downloading the PDF catalog will take you no more than 5 minutes, so you won't have to wait days for the print catalog. PDF catalogs include links to our products: just click on the hyperlinked product headings, and you'll be directed right to our website.
Office PDF Catalog 2 MB
Automotive PDF Catalog 2.6 MB
Aerospace/Aircraft PDF Catalog 2 MB
Utilities & Energy PDF Catalog 3.7 MB
Datacom/Telecom PDF Catalog 5.7 MB

HydraLink Sealed Multiple Wire Closed End and In-Line Butt Connectors From $18.66 Unlike traditional methods of joining multiple wires, these connections include an active adhesive that melts between the wires, when heat is applied, to provide a watertight seal. These multiple wire connectors are ideal for joining 1 wire to 2 wires, or joining up to 4 wires at a time.	Elektralink™ Sealed Solder Butt Splices From $20.27 ElektraLink Sealed Solder Butt Splices are an excellent choice for professional electricians that require high quality electrical connections. These butt splices provide that much needed connection. Each splice has just the right amount of solder to create a secure connection and an adhesive lined heat shrink tubing to seal it and provide protection against the elements.

Perma-Seal™ Step-Down Butt Splice Connectors From $78.41 These heat sealed step-down butt connectors provide additional protection against the elements. When connecting two different sized wires or joining two wires to one, this is the perfect solution. The smaller end of the connector is color coded for easier identification and quick installation.	Multilink™ Crimp and Solder Sealed Butt Splices & Ring Terminal Kits From $33.09 MultiLink Crimp and Solder Sealed Butt Splices are crimped for maximum reliability, then soldered for strength and conductivity. Each butt splice has an adhesive lined heat shrink tubing to provide a durable and weatherproof seal. This multi-step process has a high tensile strength and provides you with the most secure connection possible.

VT-1100 Heat Gun Price $59.99 Our 120VAC 1200W heat gun has variable temperature capability from 250 to 1100 degrees F. It has a two speed air flow adjustment with a stand for easy hands-free use.	Ratcheting 4-in-1 Crimping Tool Price $74.99 This Ratcheting Crimp Tool is the ideal solution to crimping heat shrink butt splices and terminals. The 4 crimp nests are color-coded and labeled for ease of use. The tip has a mating mechanism that aligns to prevent the dies from slipping during your crimp and ensures that you will have a reliable and uniform crimp.