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SAVE TIME, REDUCE INVENTORY

YOU CAN NEVER BE TOO WELL-CONNECTED ON THE JOB

The best connectors do more than fit the application. They also fit your hand.
They feel good to use. At 3M, we design connectors that are as comfortable and
easy to use as they are dependable.
Our complete line provides a wide range of connector choices. Simply choose
the connector that fits your personal preference as well as the application. We
give you plenty of choices.
Start with the unique 3M

™

O/B+, T/R+, R/Y+ and B/G+ Wire Connectors.

The Scotchlok

™

connectors are our original color-coded line of wire connectors

designed with features requested by electricians. 3M 312, 412, 512 and 512G
Wire Connectors are suited for regular or low-voltage systems in construction,
industrial, maintenance, OEM, or irrigation applications. Highland

™

wire

connectors offer an affordable alternative with no compromise to quality.
It’s all here—right at your fingertips—with 3M’s family of easy to use,
versatile, and highly reliable wire connectors.

3M “PERFORMANCE PLUS” CONNECTORS

BROAD WIRE RANGE = INVENTORY SAVINGS

Because of their increased wire range, just three “Performance+” Wire Connectors
handle the work of eight standard connectors. O/B+ replaces the orange, blue, gray and
yellow wire connectors. R/Y+ or T/R+ replace red, tan and yellow connectors. B/G+

covers both the large blue and gray connectors. This simplifies selection of the right

connector for a wide range of wiring jobs. There’s also less inventory to manage,

and a better chance you’ll have the connectors you need to do every job.
In addition, they are exceptionally easy to handle. Their one-of-a-kind design

incorporates a flexible skirt and a rigid top. The flexible skirt covers over-

strips yet conforms to whatever space is available in a box.

This exclusive feature allows Performance Plus connectors to provide
maximum protection and fit inside even the most crowded electrical

boxes.

The rounded wings on the rigid top make 3M wire connectors
exceptionally easy to handle. Twisting the connector—on or off—is

easier than ever. That means fast installation and less wear and tear

on your fingers.

Inside, the unique spring grips quickly, turns on fast and expands to accept

a wide range of wire sizes. It bites into conductors for solid, secure connections. The

3M “plus” connectors also feature a large, funnel-shaped throat design. The connectors

meet UL max-fill requirements. All Performance Plus wire combinations are UL listed for
600 volts on copper wire.

A better bite for a better connection

™

Performance Plus Wire Connectors

now have a better bite. Wires feed better
into the connector improving the security
of the connection and increasing the level
of pull out.

A broad wire range reduces inventory

The versatility of 3M “plus” Wire Connectors saves time
on the job and reduces inventory. O/B+ replaces orange,
blue, gray and yellow connectors; R/Y+ and TR+ replace
red, tan and yellow connectors; and the B/G+ replaces
blue and gray connectors.

New design allows easier

installation

We have modiﬁ ed the internal design
of the 3M Performance Plus Wire
Connectors. Installation is smooth,
fast and easy on the hands.

Flexible skirt provides safety

The ﬂ exible skirts on the 3M Performance
Plus Wire Connectors make your customer’s
workplace a safer environment. The ﬂ exible
skirt provides protection against potential
shock situations.

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ORDERING INFORMATION

3M™ Performance Plus Connector

Prod

Box

Bulk Container

O/B+

100 connectors/box

500 connectors/container

10 boxes/case

20 containers/case

1,000 connectors/case

10,000 connectors/case

T/R+

100 connectors/box

500 connectors/container

10 boxes/case

8 containers/case

1,000 connectors/case

4,000 connectors/case

R/Y+

100 connectors/box

500 connectors/container

10 boxes/case

8 containers/case

1,000 connectors/case

4,000 connectors/case

B/G+

50 connectors/box

250 connectors/container

10 boxes/case

8 containers/case

500 connectors/case

2,000 connectors/case

Scotchlok Y, R, G and B Electrical Spring Connectors
are the original color-coded wire connectors
designed with the features electricians request.
They’re flexible yet durable with an outer insulator
that gives you a compact, fully insulated connection
that won’t cut or abrade wires. The Y, R, and G
torque fins are engineered to provide a comfortable
and secure grip that makes installation fast and
back-off easy.

These four spring connectors have a corrosion-

resistant steel inner shell to strengthen them while
permitting spring expansion and contraction due
to temperature changes, eliminating poke through.
The live- action spring delivers reliable, vibration-
resistant connections over a wide range of wire
combinations from 2 #18 through 3 #8 copper
AWG. A deep, flared skirt makes wire insertion easier
and protects against shorts and shiners. Finally, the
design and a flexible base let Scotchlok connectors
bend with the wires you’re slicing to fit easily into
tight places.

™

SCOTCHLOK

™

Y, R, G AND B CONNECTORS

THE COLOR-CODED ORIGINALS

Scotchlok

™

Wire Range Capabilities*

* For additional wire combinations, please call 512-984-5555.

FLEXIBLE SCOTCHLOK Y, R, G AND

B ELECTRICAL SPRING CONNECTORS

The ribs on the Scotchlok B

connector provide a comfortable

and secure grip that make for

a fast installation.

The live-action spring of the 3M

™

Scotchlok

™

Electrical Spring Connectors delivers reliable,

vibration-resistant connections over a wide

range of wire combinations.

™

312, 412, 512 AND 512G CONNECTORS OFFER CHOICES

FOR RELIABILITY THAT FEEL JUST RIGHT

For regular or low-voltage systems, in construction, industrial
maintenance or OEM, 3M

™

connectors are the answer—right

at your fingertips.

NYLON-INSULATED 312 AND 512

ELECTRICAL SPRING CONNECTORS

The quick-spin, wing-torque design of 312 and 512 electrical
spring connectors is easy on your fingers. The day’s last
connection will feel almost as good as the first. Generous
expansion room accommodates a wide range of solid or
stranded wire bundles. Use the 312 (yellow) connector for
wire combinations from 3 #20 to 3 #12 copper AWG and the
512 (red) connector for 2 #18 to 5 #12 300 volt copper AWG.
The 512G (Green) is used for grounding connections.

3M WIRE CONNECTOR 412

The 412 connector has been designed with a hexagon shaped
head that makes it usable with a 5/16" socket. It is UL listed for
up to four #12 AWG solid or stranded wires. Wing-torque design
enables easy application and back-off.

The quick-spin, wing-torque design

of the 3M

™

312, 412, 512 and 512G

Electrical Spring Connectors makes installation

easy on your ﬁ ngers.

A wider spring opening enables easier and
faster insertion of larger wire combinations

than with other tan connectors.

Highland

™

Color-Coded Wire Connector Ordering Information

Product No.

Wire Range*

Size

H-29 (Gray)

22-16 AWG (Three to Five #22 AWG; Two to Four #20 AWG; Two or Three #18 AWG; Two #16 AWG)

71B

H-30 (Blue)

22-16 AWG (Five #22 AWG; Three to Five #20 AWG; Two to Four #18 AWG; Two or Three #16 AWG;

72B

One #14 AWG w/One #16 AWG)

H-31 (Orange)

22-14 AWG (Five #22 AWG; Three to Five #20 AWG; Two to Five #18 AWG; Two or Three #16 AWG;

73B

Two #14 AWG)

H-33 (Yellow)

22-12 AWG (Four or Five #22 AWG; Three to Five #20 AWG; Two to Seven #18 AWG;

74B

Two to Four #16 AWG; Two or Three #14 AWG; Two #12 AWG)

H-35 (Red)

18-10 AWG (Three to Nine #18 AWG; Two to Six #14 AWG; Two to Four #12 AWG;

76B

Two or Three #10 AWG)

WARNING

Turn power off before installing or removing
terminal or connector. All work should be done
according to appropriate electrical codes.

COLOR-CODED FOR GENERAL WIRING USE

Highland color-coded wire connectors make it quick and easy to match
the right connector to the size of the wire.
The shells are designed to withstand temperatures up to 221°F
(105°C). Highland color-coded wire connectors are UL Listed, CSA
Certified, and work equally well with either solid or stranded copper
wire. H-29 and H-30 connectors are rated to 300V. H-31, H-33 and
H-35 connectors are rated to 600V maximum in building wire; 1000V
maximum in signs or lighting fixtures (luminaires).

HIGHLAND

™

CONNECTORS:

COLOR-CODED WIRE CONNECTORS

Highland

™

Color-Coded Wire Connectors

make it quick and easy to match the right

connector to the size of the wire.

Economical, hard-shell wire

connectors that operate in a wide

temperature range.

CONNECTORS APPLICATIONS:

THE POSSIBILITIES ARE ENDLESS

Here are just a few of the general categories and applications for the 3M family of wire connectors.

For more information, please call 800-245-3573.

Recreational Equipment

Motor homes
Trailer hitches

Automotive

After market equipment
Security systems

Residential Construction

Branch circuit wiring
Security systems
Ballast lighting
Fans and fixtures

Commercial Construction

Branch circuit wiring
Motors and relays
Fire alarm systems

Industrial

Branch circuit wiring
Large motors and compressors

Maintenance

Replacement of motors
and compressors
Refurbishment
Ballast lighting

OEM

Appliances
Lighting fixtures
Lamps
Vacuums
Air conditioning

Manufacturing

OEM equipment
Equipment maintenance

3M WCD WIRE
CONNECTOR DRIVERS

These application tools for 3M O/B+, R/Y+, 312, 412 and 512,
and Scotchlok™ Y, R, and G connectors quickly spin on the
connector and position the wire bundle in the box. The WCD-H
is a hand driver and the WCD-P is a power driver that fits a
standard chuck.

The 3M

™

Family of

Connectors

3M “Plus” Connectors

O/B+, R/Y+, B/G+, T/R+, TY+

Scotchlok

™

Connectors

Y, R, G, B

3M Connectors

312, 412, 512, 512G

Highland

™

Color-Coded

Connectors

H-29, H-30, H-31, H-33, H-35

3M Connector Tools

WCD-P, WCD-H

Litho in USA.

Electrical Markets Division

6801 River Place Blvd.

Austin, TX 78726-9000

800 245 3573

FAX 800 245 0329

www.3M.com/electrical

Important Notice

Before using this product, you must evaluate it and determine if it

is suitable for your intended application. You assume all risks and

liability associated with such use.

Warranty; Limited Remedy; Limited Liability.

This product will be free from defects in material and manufacture

at the time of purchase.

3M MAKES NO OTHER WARRANTIES

INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY

OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR

PURPOSE.

If this product is defective within the warranty period

stated above, your exclusive remedy shall be, at 3M’s option, to

replace or repair the 3M product or refund the purchase price of

the 3M product.

Except where prohibited by law, 3M will not be

liable for any indirect, special, incidental or consequential loss

or damage arising from this 3M product, regardless of the legal

theory asserted.

Recycled Paper

40% Pre-consumer waste paper

10% Post-consumer waste paper

3M is a trademark of 3M Company.