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4
1
AUXILARY
END
9/16 (15)
ADAPTER
BRACKET
Fig. 1. Series 41 and Series 81 Modutrol IV Motor mounting dimensions in in. (mm).
Dead Weight Load On Shaft (maximum):
Power or Auxiliary End: 200 lb. [90.8 kg].
Combined Load: 300 lb. [136 kg]. (Dual-stroke motors only.)
Maximum Damper Rating [B Dimension]:
25 lb.-in. Models: 68 in.
60 lb.-in. Models: 34 in.
NOTE: The B dimension is the length of the damper side
perpendicular to the drive shaft.
Ambient Temperature Ratings:
Maximum: 150°F (66°C).
Minimum: -40°F (-40°C).
Torque and Timing: See Table 4.
Approvals:
Underwriters Laboratories Inc. Listed: File No. E4436, Guide
No. XAPX.
Canadian Standards Association Certified: General listed File
No. LR1620, Guide No. 400-E.
TOP VIEW
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3
4-1/16 (103)
1-1/2 (37)
4-1/16 (103)
POWER
END
2
SERIES 41 AND 81 MODUTROL IV™ MOTORS
TOP VIEW OF BRACKET
4-7/8
(124)
4-5/8
(116)
5-1/2
(140)
4-7/8 (124)
WIRING
BOX
BASE
MOTOR
6-7/16
(164)
5-3/8
(137)
1
SOME MODELS DO NOT HAVE AN AUXILIARY
SHAFT. ALL OTHER DIMENSIONS ARE THE SAME.
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2
FOR HIGH TORQUE (60 LB-IN.) SPRING RETURN
MODELS 8-3/4 (222); FOR LOW TORQUE (25 LB-IN.)
SPRING RETURN MODELS 8-1/4 (210).
3
FOR HIGH TORQUE (60 LB-IN.) SPRING
RETURN MODELS (SHOWN).
4
FOR LOW TORQUE (25 LB-IN.) SPRING
3/4
RETURN MODELS.
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Accessories:
198162AA Internal Transformer; 120/208/240 Vac 50/60 Hz
primary, 24 Vac secondary.
198162EA Internal Transformer; 120 Vac 50/60 Hz primary,
24 Vac secondary.
198162GA Internal Transformer; 220 Vac 50/60 Hz primary,
24 Vac secondary.
198162JA Internal Transformer; 24 Vac 50/60 Hz primary,
24 Vac secondary (for electrical isolation).
220736 Internal Auxiliary Switch Kit can be field-installed
on TRADELINE models. One- (220736A) and Two-
(220736B) switch kits available.
220738A Adapter Bracket raises motor shaft height by 19 mm
to match that of previous Modutrol
220741A Screw Terminal Adapter converts the standard
quick-connect terminals to screw terminals.
221455A Infinitely Adjustable Crank Arm approximately
0.75 in. shorter than the 4074ELY Crank Arm, can rotate
through downward position and clear motor base without
requiring adapter bracket.
4074ERU Weatherproofing Kit provides NEMA 3 rating for
Modutrol IV Motors mounted in position other than upright.
3
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5-13/16
2-5/16
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11/16
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POWER END
1/4 (7)
5-9/16 (141)
®
Motor models.
(148)
M17711
63-2187—3
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