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MDA 12 or equivalent
POWER FACTOR:
Percentage at 30.0 amps DC current
91% for 18 cells
71% for 12 cells
DC OUTPUT:
Voltage range
Current Maximum 30.0 + 5 amps
DC OUTPUT RIPPLE (at battery terminals):
12. PARTS LIST
The following is a list of parts found in the NRS Model 24/30. When replacing a part, use only original factory
replacement parts of the correct size and rating.
PART NO.
12895S
17011S
18696S
14241S
29102S
14123S
14126S
29741S
29742S
04401S
15032S
15037S
22908S
14786S
14484S
03837S
15197S
15029S
14789S
14759S
14197S
31126B
22942S
27319S
22904S
15194S
23059S
The adhesive used on the temperature probes (#14123S and #14126S) is 3M Scotch #Y-9473 which is a
thermally conducting two-sided adhesive tape. If a replacement adhesive is needed, use this type of tape or an
equivalent adhesive.
www.nationalrailwaysupply.com
1-800-357-3572
20.00 – 39.99 + 0.2 volts
QTY
1
2
1
2
1
1
1
1
1
1
2
1
1
1
1
2
1
2
1
1
4
1
1
1
1
1
1
1.4V p-p at 30.0 amps, 24.0 volts
0.28V p-p at 2.0 amps, 26.8 volts
TEMPERATURE COMPENSATION:
3+25mV per °F per cell
WEIGHT, NET:
58.0 lbs.
DIMENSIONS:
W = 18¼"
DESCRIPTION
TRANSFORMER ASSEMBLY
SCR ASSEMBLY
SHUNT ASSEMBLY
AC INPUT JUMPERS
CONTROL MODULE (W/ ELECTRONIC BOARD #21185)
TEMPERATURE TRANSDUCER, 10' (BOX W/ ADHESIVE)
TEMPERATURE TRANSDUCER, 30' (BOX W/ ADHESIVE)
TEMPERATURE TRANSDUCER, 10' (W/ TERMINAL)
TEMPERATURE TRANSDUCER, 30' (W/ TERMINAL)
TRANSFORMER CAP
OUTPUT CAP
CIRCUIT BREAKER ASSEMBLY
COVER ASSEMBLY
DIODE ASSEMBLY
TERMINAL TAP STRIP
FUSEHOLDER, ASSEMBLY
VARISTOR ASSEMBLY W/ CAP, VR1
FUSE
TAP STRIP ASSEMBLY, W/ I/O STUDS
VARISTOR ASSEMBLY, VR2
BUSHINGS, 1" DIA.
VARISTOR ASSEMBLY, AC, 320V, LOT SIZE 10
AMMETER, 40 AMP, SNAP-IN
AMMETER, 50 AMP, CORNER MOUNT
BASE ASSY
HEATSINK ASSY, W/ SCR
CONTROL CABLE
5
H = 11¼"
D = 9¾"
01546G
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