Killark Full Catalog

D I STR I BUT I ON EQU I PMENT B7L SERIES

CATALOG LOGIC / WIRING / DATA DIMENSIONS

Catalog Logic – for basic Panelboard Enclosures

B7 L 20 1 12 ML 100

Mains Amp Rating NOTE: Change if lower amperage main breaker is required, Example MBB60 for 60 AMP main.

Constant For PRISM Series Enclosures

L - Lighting P - Power

Mains ML - Main Lugs Only

MBB MBC MBE MBF MBJ

Main Breaker

BAB

Nominal Inside Length of Box 20-29-41-50

ED

EHD FDB

1 - Single Phase 3 - Three Phase

JD

Number Of Branch Poles

WIRE SIZES

E

F

G

H

I

J

K

L

M

N

#12-#1

#6-250MCM #12-1/0

#14-1/0

2/0-250MCM #14-#1

#6-2/0

#6-4/0

#2-4/0

#2-2/0

Wiring Diagrams B7L Series (Note: B7P Series are single column)

Main Lug Only Three Phase 4-Wire

Main Lug Only Single Phase 3-Wire

Back Feed Main Breaker Three Phase 4-Wire

Back Feed Main Breaker Single Phase 3-Wire

Vertical Main Breaker Three Phase 4-Wire

Vertical Main Breaker Single Phase 3-Wire

Solid Neutral 120/208 VAC

Solid Neutral 120/240 VAC

Solid Neutral 120/208 VAC

Solid Neutral 120/240 VAC

Solid Neutral 120/208 VAC

Solid Neutral 120/240 VAC

DIMENSIONS

ENCLOSURE BOX SIZE

CONDUIT SIZE

CONDUIT QUANTITY

X

Y

Z

LETTER BASE BOX NUMBER j

A

B, C, D

A

B

C

D

A B C D

MXB-13207 MXB-13297 MXB-13417 MXB-13507

24-3/4”(629) 33-3/8”(848) 45-3/8”(1153) 54-3/8”(1381)

13”(330) 21”(533) 33”(838) 42”(1067)

2”

1” 1” 1” 1”

6-7/8”(175) 10-7/8”(276) 16-7/8”(429) 21-3/8”(543)

2 2 2 2

3 3 3 3

3 4 5 6

4 5 6 7

2-1/2”

3” 3”

j See pages DE13 and DE14 for complete enclosure ordering information.

Dimensions

www.hubbell.com/killark

DE24