3M
™
Scotchlok
™
Self-Stripping Electrical Tap
Connector 558
Data Sheet
November 2010
Applications
3M™ Scotchlok™ Self-stripping Electrical Tap Connector 558 is used to electrically
connect a (tap) wire end to a through (run) wire and insulate the connection.
Agency Approvals,
Self Certifications,
Mil Specs
Meets requirements of:
UL Listed, Standard 486C, UL File E23438
CSA Certified, CSA Standard C22.2, No. 0.188-MI983, CSA File No. LR15503,
LR32411
Wire Range
22-16 AWG solid or stranded, tinned or untinned (.5-1.5 mm
2
str.) copper conductors.
For use with common thermoplastic insulated wires such as: T, TF, TFF, TFN, TFFN,
AWM, TEW, SAE-GPT with a maximum insulation diameter of .120” (3,0 mm).
Maximum recommended current for general purpose:
22 AWG
3 AMPS
20 AWG
4 AMPS
18 AWG
7 AMPS
16 AWG
10 AMPS
Construction
U-Contact: Tin-plated
brass, .02 in. (0,5 mm) thick
Insulator: Flame-retardant
polypropylene
Color: Red
Specifications
Voltage Rating:
600 volts maximum, building wire
1000 volts signs, fixtures and luminaires
Temperature Rating:
105ºC (221ºF)
Weight:
.0033 lbs (1,50 gm)
Engineering/
Architect
Specification
The Tap Connector 558 is capable of connecting a tap wire to a run wire, in the range
of No. 22 thru No. 16 AWG solid or stranded copper. The connector shall be UL Listed
and CSA Certified for 600 volts maximum, building wire: 1000 volts maximum for signs,
fixtures and luminaires with a temperature rating of 105ºC (105ºF) maximum.
Recommended
Installation Tools
3M™ Crimping Tool E-9BM
9” Lineman’s Pliers
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