EC&M Crane Control Class 8503

Crane Control Class 8503 Type M Line-Arc® AC Contactors

APPROXIMATE DIMENSIONS

2 Mtg. holes for screw "F"

C2 C1

T

T

E

X

K

V

Figure 1 NEMA SIZE 2

W

Q

Y

CRANE CONTROL CLASS 8503

D

B

Timer

Arcing clearance zone

H A S

S

for screw "F" 2 Mtg. holes

C1 C2

Main Terminals holes 4 "G" tapped

T T A A

A

E

X

K

V

Figure 2 NEMA SIZES 3, 4, 5

Q

Y

W

D

B

Timer

Arcing clearance zone

H H S S

C1

C2

T

X

A

A

E

Z

L

for screw "F" 4 Mtg. holes

K

Y

Y

Figure 3 NEMA SIZE 6

Q

D

W

Arcing clearance zone

B

4 "G" tapped holes Main Terminal

H & S

136

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