Killark-Hubbell Electrical Products MC SERIES Catalog Page

ALUMINUM CABLE CONNECTORS

FEATURES-SPECIFICATIONS

Applications

Designed for use with jacketed interlocked,
continuously corrugated and welded armor
cable (all types shown in chart below). Install
where it is essential to provide positive
grounding to the cable and for a Type 3,4
connection.

MC

Materials

• Body – Copper free aluminum (less than

4/10 of 1%)

• Ground Spring – Stainless Steel

• Backnut Seal – Thermoplastic elastomer

(silicone)

KILLARK FITTINGS

MC SERIES

Class I, Div. 2†, Groups A, B, C, D
Class II, Div. 1 & 2, Groups E, F, G
Class III
Class I, Zone 2†, Group IIC, Zone 20
Suitable for wet locations
Types 3, 4
IP66

• Backnut Clamp – Nylon

• Inner and Outer O-rings – Nitrile

Operating Temperature Range

• -50°C to +60°C

N

I

N

I

T

T

G

G

T

T

I

S

I

S

F

F

H

H

C

C

A

A

O

O

Z

Z

L

L

Features

• 360° armor grounding spring is reuseable.

• Robust threads and world class seal

enables easy installation with minimal
torque required.

Construction Details

Inner o-ring seal

Reuseable

Grounding Spring

NEMA 4

Sealing Backnut

• Design meets and exceeds third party

requirements for cable retention.

• Provides sealing back nut plus inner

o-ring seal to prevent moisture ingress to
the cable armor and enclosure.

• Copper free aluminum construction for

hostile, corrosive and certain hazardous
locations

AC- AC90, ACWU90, AC90-HL, ACWU90-HL, ACG90, ACGWU90
MC- MCC, MCI, MCI-A, MC-HL
RA- RA90, RA90-HL

TECK- TECK90, TECK90-HL

CATALOG

NUMBER

MC1C 1/2” 10 0.56” (14.2) 0.52” (13.2) 0.74” (18 .8) 0.60” (15.2) 0.82” (20.8) 2.3” (58) 0. 83” (21.1) 1.42” (36) 1.50 ” ( 38.1)

MC2 3/4” 21 0.80” (20.3) 0.65” (16.5) 0.95 ” ( 24 .1) 0.73” (18.5) 1.03” (26.2) 2.5” (64) 0.84” (2 1.3) 1.61” (41) 1.69” (42.9)
MC3 1” 42 1.04” (26 .4) 0.89” (22.6) 1.23” (31.2) 0.97” (24.6) 1.31” (33.3) 2.6” (66) 1.03” (26.2) 1.97” (50) 2.13” (254 .1)
MC4 1 1/4” 73 1.28” (32.5) 1.15” (29.5) 1.48” (37.6) 1.23” (3 1.2) 1.56” (39.6) 3.1” (79) 1.0 5” (26.7) 2.36” (60) 2.50” (63.5)

Cable armor diameter and cable jacket diameter refer to the dimensions across the crest.
† Where explosion proof/ameproof enclosures are being used the MC must be installed in conjunction with an approved sealing  tting. In Division 2 areas the MC can be t ted

directly to an enclosure which has no source of ignition.

* For metric sizes, consult factory.

ENTRY

THREAD

SIZE (NPT)

MAX

NUMBER

OF CORES

THROUGH

DIAMETER

CABLE ACCEPTANCE DETAILS

ARMOR DIAMETER ‘B’ DIAMETER ‘C’

‘A’

MIN. MAX. MIN. MAX.

SUITABLE ARMORED/METAL CLAD CABLE TYPES

MAX

LENGTH

‘D’

NPT

LENGTH

‘E’

HEXAGON DIMENSIONS

ACROSS

FLATS

ACROSS

CORNERS