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M7261,M7272,M7274,M7281,M7282,M7284,M7285,M7286,M7294
SPECIFICATIONS • INSTALLATION
ELECTRICAL RATINGS:
Voltage and Frequency: 120 Vac, 50/60 Hz.
M7261: 19W, 0.20A
M7272: 26W, 0.26A
M7274: 15W, 0.71A
M7281: 23W, 0.24A
M7294: 23W, 0.24A
INPUT RANGE:
Current, Nonadjustable: 4 to 20 mA nominal, 25 mA
maximum.
Current, Adjustable: 4 to 20 mA adjustable, 50 mA
maximum.
Zero/Null (Motor Closed): 0.08 to 18 mA.
Span: 1.8 to 18 mA.
Voltage, Nonadjustable: 2 to 10 Vdc.
INPUT IMPEDANCE:
4 to 20 mA Input: 100 ohms.
2 to 10 Vdc Input: 400 kohms.
AUXILIARY SWITCH RATINGS (Amperes):
One Contact Rating
Full Load
Locked Rotor
a
40 VA pilot duty, 120/240 Vac on opposite contact.
UNDERWRITERS LABORATORIES INC. LISTED: File
No. E4436; Guide No. XAPX.
CANADIAN STANDARDS ASSOCIATION CERTIFIED:
General listed File No. LR1620; Guide No. 400-E.
ACCESSORIES:
ES650117 Explosion-proof Housing; encloses motor
for use in explosive atmospheres. Not for use with
Q601, Q618, and Q455 Linkages. Order separately
WHEN INSTALLING THIS PRODUCT...
1. Read these instructions carefully. Failure to fol-
low them could damage the product or cause a hazardous
condition.
2. Check the ratings and description given on the prod-
uct to make sure the product is suitable for your application.
3. Installer must be a trained, experienced service
technician.
4. After installation is complete, check out product
operation as provided in these instructions.
!
CAUTION
1. Disconnect power before installation to pre-
vent electrical shock or equipment damage.
2. Never turn the motor shaft by hand or with a
wrench to prevent damage to the motor.
3. Always conduct a thorough checkout when
installation is complete.
M7282: 28W, 0.28A
M7284: 23W, 0.24A
M7285: 28W, 0.28A
M7286: 23W, 1.00A
a
120V
240V
7.2
3.6
43.2
21.6
from Nelson Electric Co. Requires Honeywell
7616DM Coupling.
Q607 External Auxiliary Switch; controls auxiliary equip-
ment as a function of motor position.
Q605 Damper Linkage; connects motor to damper;
includes motor crank arm.
Q618 Linkage; connects Modutrol IV Motor to water or
steam valve.
Q601 Bracket and Linkage Assembly; connects Modutrol
IV Motor to water or steam valve.
Q100 Linkage; connects Modutrol IV Motor to butterfly
valve.
221455A Motor Crank Arm; infinitely adjustable crank
arm, can rotate through the downward position and
clear the base of motor without requiring the use of
an adapter bracket. Approximately 0.75 in. [19 mm]
shorter than the 4074ELY Crank Arm.
7617ADW Motor Crank Arm; can rotate through the
downward position and clear the base of the motor
without requiring the use of an adapter bracket. Ap-
proximately 0.75 in. [19 mm] shorter than the 7616BR
Crank Arm.
220741A Screw Terminal Adapter; converts the stan-
dard quick-connect terminals to screw terminals.
Transformers: Mounted internally, provide 24 Vac power
to the motor:
198162JA 24 Vac, 50/60 Hz (for electrical isolation).
198162EA 120 Vac, 50/60 Hz.
198162GA 220 Vac, 50/60 Hz.
198162AA 120/208/240 Vac, 50/60 Hz.
4074ERU Weatherproofing Kit; provides NEMA 3 rat-
ing when Modutrol IV Motor is mounted in other
than upright position.
LOCATION
Install the Modutrol IV Motor in any location except
where acid fumes or other deteriorating vapors might attack
the metal parts, or in atmospheres of escaping gas or
explosive vapors. Motors are rated for ambient tempera-
tures between -40° F and +150° F [-40° C and +66° C].
In excessive salt environments, mounting base and screws
should be zinc or cadmium plated, not stainless steel or
brass. Use the 220738A Adapter Bracket for mounting on
these surfaces.
Allow enough clearance for installing accessories and
servicing the motor when selecting a location (see Fig. 1).
When located outdoors, mount motor upright and use
liquid-tight conduit connectors and wiring box to provide
NEMA 3 weather protection. When mounted outdoors in
a position other than upright, install 4074ERU Weather-
proofing Kit and liquid-tight conduit connectors to pro-
vide NEMA 3 weather protection.
4
Installation
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