3M 557-POUCH 3M, Scotchlok, El...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$50.89
$47.77
3M 557-POUCH 3M, Scotchlok, Electrical Idc 557-Pouch, Pigtail, Self-Stripping, Red,22-16 Awg, 100/Pouch, 100/Case

3M 557-POUCH 3M, Scotchlok, Electrical Idc 557-Pouch, Pigtail, Self-Stripping, Red,22-16 Awg, 100/Pouch, 100/Case

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Model: 557-POUCH
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$50.89
$47.77
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3M, Scotchlok, Electrical Idc 557-Pouch, Pigtail, Self-Stripping, Red,22-16 Awg, 100/Pouch, 1000/Case

  • Features

    • Accommodates 22 to 16 AWG solid/stranded
    • intended for use with common thermoplastic insulated wire such as: T, TF, TFF, TFN, TFFN, AWM, TEW, SAE GPT with a maximum insulation diameter of 3,5 mm
    • UL Listed and RoHS 2011/65/EU Compliant

Manufacturer Resources

Product Specs

Color Family Incorporate Product Color:
Red
Wire Size:
22 - 16 AWG
Connection Type:
Pigtail
Connector Connector Tool:
3M Crimping Tool E-9BM and/or 9" Lineman's Pliers
Connector Style:
Insulation Displacement
Flame Retardant:
Yes
Grease Filling Against Corrosion:
No
Insulation Color:
Red
Insulation Material:
Polypropylene
Insulation Outer Diameter Imperial:
0.120 Inch
Insulation Outer Diameter Metric:
3.05 mm
Interrupt Free Shifting:
No
Manufacturer Catalog Number:
7100166937
Manufacturing Origin:
USA
Maximum Operating Temperature Celsius:
105 Degree Celsius
Maximum Operating Temperature Fahrenheit:
221 Degree Fahrenheit
Maximum Recommended Voltage Rating:
600 V
Maximum Wire Gauge:
16 AWG
Minimum Wire Gauge:
22 AWG
Package Height:
8.50000 in
Package Length:
6.50000 in
Package Weight:
0.3800 LBS
Product Material:
Insulator: FR Polypropylene, U-Contact: Tin-plated brass
Recommended Crimping Tool:
E-9BM
Run Maximum Insulation Outer Diameter Imperial:
0.12 in
Run Maximum Insulation Outer Diameter Metric:
3.05 mm
Tap Maximum Insulation Outer Diameter Imperial:
0.12 in
Tap Maximum Insulation Outer Diameter Metric:
3.05 mm
Voltage Application:
Low Voltage
Wire Connector Type:
IDC Connectors
Wire Size:
IDC Connectors
Department:
Electrical
Pack size (unit):
100
Product Type:
IDC Connector
Product Group:
Wire Connectors & Terminals
Product Subgroup:
Wire Connectors

3M 557-POUCH – Frequently Asked Questions

1) What wire sizes does the 3M Scotchlok 557 pigtail connector handle?
The Scotchlok 557 takes 22 through 16 AWG, solid or stranded. The limit that actually catches people is insulation diameter, not gauge: both the run and tap conductors must be 0.120 inch (3.05 mm) maximum over the insulation. Thin-wall thermoplastic wire like TFN, TFFN, AWM, TEW and SAE GPT falls within that; heavier-jacketed 16 AWG may not seat in the U-contact.
2) Do I have to strip the wire before using a Scotchlok 557?
No stripping. The 557 is an insulation displacement connector, so the tin-plated brass U-contact cuts through the insulation and bites the copper when you crimp the cap shut. Just cut the conductors to length, seat them fully in the connector, and crimp.
3) What tool do I need to crimp 3M 557 Scotchlok connectors?
3M calls for the E-9BM crimping tool, or a 9 inch lineman's pliers if you don't have the dedicated tool. Either way the cap has to be pressed fully down and latched; a partial crimp leaves the U-contact short of the conductor.
4) Are 3M 557 Scotchlok connectors suitable for outdoor or wet locations?
No. The 557 is a dry, non-filled connector, with no sealant or grease to block moisture and corrosion. Keep it to dry indoor splices inside enclosures, fixtures or panels. For buried, damp or direct-burial work you want a gel-filled IDC connector instead.
5) What is the difference between a pigtail Scotchlok and a run-and-tap type?
A pigtail connector like the 557 terminates the ends of two conductors together, the way a wire nut would, so both wires dead-end in the connector. A run-and-tap Scotchlok instead lets an uncut run wire pass straight through while a tap is spliced onto it. If you need to branch off a circuit without cutting it, the 557 is the wrong style.
6) Can I use a Scotchlok 557 on a 277 or 480 volt circuit?
The 557 is rated to a maximum recommended 600 V, so 120, 277 and 480 V circuits are within rating. Temperature ceiling is 105 C (221 F). Note the gauge range tops out at 16 AWG, which in practice means control, signal and fixture-wiring work rather than branch-circuit conductors.
7) Is the 3M 557 Scotchlok UL Listed?
Yes, the 557 is UL Listed and RoHS 2011/65/EU compliant. It is manufactured in the USA, which helps on jobs carrying domestic-sourcing language.
8) Is the Scotchlok 557 flame retardant, and what is the body made of?
The housing is flame-retardant polypropylene, molded in red, with a tin-plated brass U-contact inside. That matters for fixture whips, luminaire terminations and anywhere an inspector asks about the insulator material in an enclosure.
9) How many 3M 557 connectors come in a pouch, and what is the 3M catalog number?
They ship 100 per pouch under 3M part number 557-POUCH, catalog number 7100166937. The pouch packaging keeps them from scattering in a tool bag, which is why service techs order this version rather than a bulk box.
10) What does the red color on a Scotchlok connector tell me?
Red identifies the 22-16 AWG range on 3M's Scotchlok IDC line, so on a panel or fixture full of mixed splices you can read the wire range off the cap color without pulling the connector apart. Other gauge ranges in the family carry different colors.
How fast can I get the 3M 557-POUCH delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the 3M 557-POUCH come with a warranty?
Absolutely. The 3M 557-POUCH is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the 3M 557-POUCH?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the 3M 557-POUCH from ZenSupply?
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