LEESON NEMA 4X SCR Control: 174903.00 (Obsolete) - Manual (Page 6)

DIMENSIONS
5
Allow 3.50" for height clearance, 7.40" for overall length.
WARNING
1. Be sure the control housing is properly grounded.
2. Arm connections must not be switched or broken while the control is on. Serious
damage may result.
3. For non-speedpot applications, the input connections to the Lo-Wiper-Hi leads
must not be grounded. Serious control damage may result from a grounded input.
1. Four 7/32" diameter slots are provided for control mounting.
2. The chassis of the control can be used as a template.
3. Use standard hardware to mount.
4. Two threaded holes (1/2" NPT) are provided on the bottom side endplate near the
terminal strip to facilitate wiring.
MOUNTING
CAUTION: DO NOT MOUNT CONTROL WHERE AMBIENT TEMPERATURE IS OUT
SIDE THE RANGE OF -10
o C. (15 o F.) TO 45 o C. (115 o F.)
5.500
7.000
.750
5.125
7/32 SLOTS (4)
TYP. .350 DEEP
5.530