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ELECTRICAL DATA
TO DETECT OPEN AND SHORT CIRCUITS
IN ELECTRICAL COMPONENTS
Open circuits in the coils of electrical components may be detected
by isolating the coil and checking for continuity with an ohmmeter or
with the unit in series with a light or bell circuit.
Shorted turns are indicated by a current draw substantially above
normal (connect ammeter in series with suspected element and
impose normal voltage) or DC resistance substantially below normal.
The current method is recommend for coils with very low DC
resistance.
Motor current draw in the stator should be measured with the rotor
in place and running. Brake coil current should be measured with the
core iron in operating position.
Table 12a. DC Electric Brake Data
DC Brake
Models
Coil Voltage
103
A-H
205
103
J-RT
205
Table 12b. Motor Data
Volts-Phase-
Models
HP (kW)
Hertz
230-3-60
A, AA, B, C,
380-3-50
1/2 (0.37)
E, F, H
460-3-60
230-3-60
J, L,
380-3-50
1 (0.74)
R, RT
460-3-60
* Resistance values listed are nominal and may vary slightly from
component to component.
Table 12c. Hoist Current Data
Volts-Phase-
Models
Hertz
115-1-60
230-1-60
A-H
230-3-60
380-3-50
460-3-60
115-1-60
230-1-60
J, L,
230-3-60
R, RT
380-3-50
460-3-60
VARIABLE SPEED ELECTRIC CHAIN HOIST WITH
OPTION
Nominal
*DC
Current
Resistance
(Amps)
(Ohms)
0.243
424.4
0.0975
2101
0.311
331.5
0.122
1681
Motor
*DC
Full Load
Leads
Resistance
Current
(Ohms)
(Amps)
3 - 6
7.8
1.8
2 - 5
7.8
1 - 4
7.8
1.0
8 - 9
15.6
8 - 7
15.6
0.9
9 - 7
15.6
3 - 6
4.7
3.0
2 - 5
4.7
1 - 4
4.7
1.8
8 - 9
9.4
8 - 7
9.4
1.5
9 - 7
9.4
Hoist Full
Load Current
11
5.5
1.8
1.0
0.9
15
8.8
3
1.8
1.5
37
P/N: 192047082 (REV AD) 627NH March 2022
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