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Mueller Electric Co BU191 Series

18 variants · Mueller Electric Co

About the Mueller Electric Co BU191 Series

The Mueller Electric Co BU191 Series series groups 18 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. Every variant in the range shares a common package of Bag and termination of Crimp. Variants differ by insulation, terminal type and wire gauge, so you can match the exact insulation your application requires using the selection guide below. All listed Mueller Electric Co BU191 Series part numbers are active and orderable.

Select a variant by

Insulation
Fully Insulated · Insulated · Insulated with Heat Shrink · Non-Insulated
Terminal type
Butt Splice, Inline, Individual Openings · Circular · Standard
Wire gauge
10-12 AWG · 14-16 AWG · 14-22 AWG · 18-22 AWG · 18-26 AWG
Length - overall
0.660\" (16.76mm) · 0.710\" (18.03mm) · 0.720\" (18.29mm) · 0.890\" (22.61mm) · 1.020\" (25.91mm) · 1.180\" (29.97mm)
Stud (Tab size)
1/4 Stud · 5/16 Stud · 6 Stud · 8 Stud · 10 Stud
Width - outer edges
0.324\" (8.23mm) · 0.342\" (8.69mm) · 0.350\" (8.89mm) · 0.470\" (11.94mm)
Thickness
0.028\" (0.71mm) · 0.030\" (0.76mm) · 0.038\" (0.97mm)
Color
Blue · Yellow

Shared specifications

Package
Bag
Termination
Crimp

Variant comparison

ParameterBU-191440037BU-191540004BU-191540022BU-191540028BU-191640034BU-191640043
InsulationInsulatedFully InsulatedFully InsulatedFully InsulatedInsulated with Heat ShrinkFully Insulated
Terminal typeStandardButt Splice, Inline, Individual OpeningsButt Splice, Inline, Individual OpeningsButt Splice, Inline, Individual OpeningsCircularButt Splice, Inline, Individual Openings
Wire gauge10-12 AWG18-22 AWG18-26 AWG10-12 AWG14-16 AWG14-22 AWG
Length - overall1.020\" (25.91mm)1.180\" (29.97mm)
Stud (Tab size)6 Stud10 Stud
Width - outer edges0.350\" (8.89mm)0.324\" (8.23mm)
Thickness0.030\" (0.76mm)
ColorYellowBlue

Request a quote on any Mueller Electric Co BU191 Series part number and we confirm price, availability and lead time per line — including end-of-life and allocation-constrained variants.

Frequently asked questions

How do the Mueller Electric Co BU191 Series variants differ?
Mueller Electric Co BU191 Series part numbers differ by insulation, terminal type, wire gauge and length - overall. Use the selection guide above to pick by insulation.
How many Mueller Electric Co BU191 Series part numbers are listed?
18 Mueller Electric Co BU191 Series part numbers are listed, each with specifications and a datasheet where available.
How do I get pricing and lead time for Mueller Electric Co BU191 Series?
Request a quote (RFQ) for any Mueller Electric Co BU191 Series part number and we confirm price, availability and lead time per line — including end-of-life and hard-to-find variants.

All variants