Thomas&Betts Catamount Wire Connectors Catalog Page

Wire Connectors

Catamount® Wire Connectors

In 1914, William Marr invented the world’s first pressure-type wire
connector. Since then, these connectors have become synonymous
with “best quality wire connectors.” Easy to install and comfortable in the
hand, they are indispensable to electricians. And now they’re available as
key components of the Catamount
for your fingers.

Electrician’s Supplies

®

How good are they?

The first thing you’ll notice about Catamount® wire connectors is that they
come in a variety of types and styles, making it easy for you to identify wire
size at a glance.

Feature for feature, here’s what makes Catamount
better than other connectors.

®

product line. This is very good news

®

connectors significantly

• Catamount® connectors are the ONLY wire connector to

offer a non-winged, variable-volume live-action spring
in the connector. The spring expands to receive the
conductors, rather than crushing them together as typical
non-winged competitors do.

• They can handle a broader range of wire connection

combinations.

• They’re coated with 100% pure copper, which reduces

the corrosion common to tin- and zinc-coated products.

Identification & Supplies — Catamount

• Catamount® connectors’ “finger friendly” design offers

a truer grip for less hand fatigue during repeated use.

• They are the ONLY red non-winged connector that

is UL Listed for a pair of #8 AWG wires.

Catamount® XTP® (Non-Winged)

CAT. NO.

329-P
329-BP 1,000 pc/bulk box 1000
329-BK 10,000 pc/bulk box 10,000
330-P
330-BP 1,000 pc/bulk box 1000
330-BK 10,000 pc/bulk box 10,000
331P
331M 1,000 pc/masterpak
331KP 500 pc/bag 10,000
333P
333M 1,000 pc/masterpak
333KP 500 pc/bag 5000
335P
335D 500 pc/masterpak
335Q 200 pc/bag —

*AWG Solid or Stranded

• The high-grade polypropylene outer shell prevents

“blooming” or “blossoming” of the connector sidewall.
The outer shell maintains a constant moisture level,
reducing the likelihood of the connector becoming dry,
brittle to extreme heat or cold.

WIRE

RANGE* MIN. MAX. COLOR DESCRIPTION STD. CTN.

100 pc/box 1000

22–16 1#22 + 1#20 2#16 XTP-Gray

100 pc/box 1000

22–14 3#20 3#16 XTP-Blue

100 pc/bulk box 1000

18–14 2#18 3#14 XTP-Orange

100 pc/box 1000

18–10 1#14 + 2#18 1#10 + 2#14 XTP-Yellow

100 pc/box 1000

18–8 2#16 + 2#18 3#10 XTP-Red

®

®

®

5000

3000

—

D-42

United States

Tel: [phone]

800.816.7809
Fax: [phone]

Technical Services

Tel: [phone]

www.tnb.com

Wire Connectors

Catamount® Set-Screw Wire Connectors

Threaded brass inserts provide vibration-resistant connections that are
easily removed for disconnection, visual inspection or rewiring. Catamount
set-screw wire connectors feature flexible, color-coded nylon insulating
shells which are compact for tight applications.

The nylon insulating shells resist heat, cold and impact with
a temperature rating of 105° C (221° F) max. Rated: 600V.

• Threaded brass inserts for

®

vibration-resistant connections

• Easily removed

• Color-coded nylon insulating shells

• UL Listed and CSA Certified

Identification & Supplies — Catamount

CAT. NO.

DESCRIPTION

WIRE

RANGE* MIN. MAX.

Carton Packed

10-305 (SS-0) Orange #18–#12 (2) #18 (1) #12 w/ (3) #18
10-307 (SS-2) Red #18–#10 (6) #18 (2) #10 w/ (1) #12 1

Bulk Packed

10-315 (SS-0) Orange #18–#12 (2) #18 (1) #12 w/ (3) #18
10-317-H (SS-2) Red #18–#10 (6) #18 (2) #10 w/ (1) #12 1

* Solid only

UL File E-17010; CSA File LR-6541; 10-306 and 10-316 have been superceded by IBP.

Catamount® Set-Screw Vibration-Proof/Visible Connection

The Catamount® Set Screw is a two-piece, pressure-type connector
featuring a solid brass insert with a screw-on insulating cap. It’s the perfect
choice when changing a motor, adding a circuit, conducting instrument
testing or simply lashing-up temporary wiring.

External Cap

• Made of rugged, phenolic material and 150° C-rated.

• Insulator cap locks securely in place to safeguard against

accidental loosening in high-vibration applications.

Brass Insert

• Choice of slot or Robertson set screw. When tightening

into the insert, provides a solid pressure-type connection
on all approved wire combinations.

• No need to “re-strip” wires when rewiring. Simply

loosen set screw to remove non-twisted wires.

• CSA (LR6591), UL (424H) — approved

for circuits up to 600V and lighting
fixtures and signs up to 1,000V.

• Convenient packaging — sized right

and jobsite ready!

Marrette Set Screws

CAT. NO.
1SHP Marrette Set Screw, Small Robertson #18–#12 100 1000

2SHP Marrette Set Screw, Large Robertson #18–#10 100 1000
1C-CDN Marrette Set Screw, Small Slot-Head #18–#12 3/Card 10 Cards
2C-CDN Marrette Set Screw, Large Slot-Head #18–#10 3/Card 10 Cards

DESCRIPTION

DIMENSIONS (IN.)

15

⁄16

3

⁄32

15

⁄16

3

⁄32

7

⁄16

39

⁄64

7

⁄16

39

⁄64

23

⁄64

33

⁄64

23

⁄64

33

⁄64

3

35

3

35

A

WIRE

RANGE

STD.
CTN.A B C D

⁄8 100
⁄64 100

⁄8 1000
⁄64 1000

C

D

B

STD.

STD.

CTN.

PKG.

®

Electrician’s Supplies

Crimp Sleeve Wire Connectors

• Zinc plated, chromate-treated steel

• Two sizes accommodate #18–#8 AWG copper

• UL Listed and CSA Certified

CAT. NO.

DESCRIPTION

Carton Packed

10–500 (Hi–410) #18–#10* (1) #14 w/ (1) #18 (2) #10 w/ (1) #12
10–501 (Hi–411) #18–#8 (3) #12 (4) #10

Bulk Packed

10–510 (Hi–410) #18–#10* (1) #14 w/ (1) #18 (2) #10 w/ (1) #12
10–511 (Hi–411) #18–#8 (3) #12 (4) #10

* Stranded only.

Installation tool 18–500.

www.tnb.com

WIRE

RANGE* MIN. MAX.

United States

Tel: [phone]

800.816.7809
Fax: [phone]

DIMENSIONS (IN.)

3

⁄8

39

⁄64

3

⁄8

39

⁄64

19

23

19

23

Technical Services

Tel: [phone]

C

A

D
B

⁄64
⁄64

⁄64
⁄64

1

⁄4

5

⁄16

1

⁄4

5

⁄16

E-17010 LR-6541

13

⁄64 50

17

⁄64 50

13

⁄64 1000

17

⁄64 1000

STD.
CTN.A B C D

D-43

Wire Connectors

Porcelain Wire Connectors — High Temperature

• For high-temperature applications over 105° C

• Rated up to 645° C (1200° F)

• Three sizes accommodate #18–#14 AWG stranded copper

• 300V Rated

Electrician’s Supplies

®

• UL Listed and CSA Certified

• UL Standard 486C

C

A

D
B

CAT. NO.

Carton Packed

10-401 (Hi-1) #18–#14 (2) #18 (1) #18 w/ (2) #16
10-405 (Hi-5) #18–#14 (2) #18 (2) #16 w/ (2) #18
10-407 (Hi-7) #18–#14 (2) #18 (4) #16

Multi-Carton Packed

10-411 (Hi-1) #18–#14 (2) #18 (1) #18 w/ (2) #16
10-415 (Hi-5) #18–#14 (2) #18 (2) #16 w/ (2) #18
10-417 (Hi-7) #18–#14 (2) #18 (4) #16

Bulk Packed

10-421 (Hi-1) #18–#14 (2) #18 (1) #18 w/ (2) #16
10-425 (Hi-5) #18–#14 (2) #18 (2) #16 w/ (2) #18
10-427 (Hi-7) #18–#14 (2) #18 (4) #16

* Stranded only.

Identification & Supplies — Catamount

UL File E-17010; CSA File LR-6541.

Catamount® Black™ High-Temperature Wire Connectors

The Catamount® Black™ connector’s high-temperature rating makes
it the best solution for high-wattage lighting fixtures and signs.

External Cap

• Made of rugged, phenolic material and 150° C rated

• Large, finely ribbed, “barrel-shaped” cap — makes

• Deep, wide throat ensures full insulation coverage

• Threaded entry helps guide large wire bundles right

Inner Spring

• Internal round spring design multiplies the “twist-on”

• Unique copper-coated spring helps resist corrosion

• CSA (LR6591), UL (424H)

– Model No. 30 Black™ is approved for circuits

– Model Nos. 31, 33 & 35 Black™ are approved for circuits

DESCRIPTION

WIRE

RANGE* MIN. MAX.

it easier to grip even when hands are greasy or damp

into the spring

torque applied by the leverage and wedge action
to firmly crush wires into a solid joint

and fixture-type connections up to 300V only

up to 600V, and lighting fixtures and signs up to 1,000V

DIMENSIONS (IN.)

11

⁄16

3

⁄4

27

⁄32

11

⁄16

3

⁄4

27

⁄32

11

⁄16

3

⁄4

27

⁄32

13

⁄32

31

⁄64

17

⁄32

13

⁄32

31

⁄64

17

⁄32

13

⁄32

31

⁄64

17

⁄32

3

⁄16

13

⁄64

7

⁄32

3

⁄16

13

⁄64

7

⁄32

3

⁄16

13

⁄64

7

⁄32

1

⁄4 100

5

⁄16 100

13

⁄32 100

1

⁄4 1,000

5

⁄16 1,000

13

⁄32 1,000

1

⁄4 10,000

5

⁄16 5,000

13

⁄32 5,000

STD.
CTN.A B C D

• Convenient packaging — sized

right and jobsite ready!

CAT. NO.

DESCRIPTION

WIRE

RANGE MODEL

30P Black #22–#14 30 1,000
30BP Black #22–#14 30 1,000
30BK Black #22–#14 30 10,000
31P Black #18–#14 31 1,000
31KP Black #18–#14 31 5,000
31BP Black #18–#14 31 1,000
31BK Black #18–#14 31 10,000
33P Black #18–#12 33 1,000
33KP Black #18–#12 33 5,000
33BP Black #18–#12 33 10,000
33BK Black #18–#12 33 10,000
35P Black #18–#10 35 1,000
35KP Black #18–#10 35 2,500
35BP Black #18–#10 35 1,000
35BK Black #18–#10 35 5,000

STD.
CTN.

D-44

United States

Tel: [phone]

800.816.7809
Fax: [phone]

Technical Services

Tel: [phone]

www.tnb.com