Bulletin 1410

Bulletin 1410
Motor Winding Heater
5
Bulletin 1410
• Solid-State Design
• Automatic Operation
• No Adjustments
Required
Motor Winding Heater
TABLE OF CONTENTS
Description
Page
Product Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-35
Description
Page
Approximate Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-36
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-35
Description
Bulletin 1410 Motor Winding Heater is intended for use with 3-phase AC motors to
guard against damage caused by condensation build-up on motor windings, which
can occur in high-humidity environments during motor off times. This device is not
intended to be used to dry out damp motors.
Bulletin 1410 Motor Winding Heater is designed for use with 3-phase AC squirrel-cage
motors controlled by automatic full-voltage starters. For applications involving
reduced-voltage starters, multi-speed starters, synchronous motors, or the use of
power factor correction capacitors, consult your local Allen-Bradley Distributor or
Sales Office.
Approvals:
CSA Certified
UL Listed
5-34
Your order must include:
• Cat. no. of the motor winding heater
selected.
Bulletin 1410
Motor Winding Heater
Product Selection ➊
Motor Voltage (V)
+10%, –15%
3-Phase, 60 Hz
Motor Hp Range
Cat. No.
230
460
575
15…50
25…100
25…100
1410-EOA47
1410-EOB50
1410-EOC50
230
460
575
50…100
100…200
100…200
1410-FOA50
1410-FOB54
1410-FOC54
230
460
575
100…200
200…400
200…400
1410-GOA54
1410-GOB59
1410-GOC59
230
460
575
200…300
400…600
400…600
1410-HOA57
1410-HOB62
1410-HOC62
➊ For applications requiring different horsepower, kilowatt and voltage ranges than those listed, consult yopur local Allen-Bradley Sales Office.
Connection Diagram
See Applicable Codes and Laws.
Motor
Branch
Circuit
Protection
L1
M LT1
L2
LT2
L3
OL's
T1
T2
LT3
To
Motor
T3
Motor
Starter
Contacts
To
“L2”
To
“L3”
To
"LT3”
To
"LT2”
L2
FU2
Fuse
Condition
Indicator
(Optional)
L3
LT3
FC1
FU1
LT2
Motor Winding Heater
Specifications
Output Voltage Regulation
Voltage applied to motor winding will vary ±5% maximum for line voltage
variations of +10%, –15%.
Ambient Temperature Range
Operating: +0…+50°C (+32…+122°F)
Storage: –25…+85°C (–13…+184°F)
Additional SCR Protection
Metal oxide varistor protects against voltage surges. RC snubber circuit limits
rate of change of circuit voltage.
True RMS Output Current
Approximately 15% of full load current.
Power Delivered to the Motor
Approximately 1 to 3 W/Hp.
5-35
Bulletin 1410
Motor Winding Heater
Approximate Dimensions
Dimensions are shown in millimeters (inches). Dimensions are not intended to be used for manufacturing purposes
A
B
C
.
5-36
Cat. No.
A
B
C
1410-EOA47
1410-EOB50
1410-EOC50
146.1
(5-3/4)
88.9
(3-1/2)
114.3
(4-1/2)
1410-FOA50
1410-FOB54
1410-FOC54
204.8
(8-1/16)
108
(4-1/4)
177.8
(7)
1410-GOA54
1410-GOB59
1410-GOC59
238.1
(9-3/8)
146.1
(5-3/4)
206.4
(8-1/8)
1410-HOA57
1410-HOB62
1410-HOC62
279.4
(11)
244.5
(9-5/8)
207.2
(8-5/32)