www.nationalrailwaysupply.com 5
01545J
DC OUTPUT RIPPLE (at battery terminals):
0.25V p-p at 40.0 amps, 12.0 volts
0.1V p-p at 2.0 amps, 13.38 volts
TEMPERATURE
COMPENSATION:
3 + .25mV per
°
F per cell
WEIGHT,
NET:
52.0
lbs.
DIMENSIONS:
W = 18¼"
H = 11¼"
D = 9¾"
12. PARTS LIST
The following is a list of parts found in the NRS Model 12/40. When replacing a part,
use
only original factory
replacement parts
of the correct size and rating.
PART
NO. QTY.
DESCRIPTION
21865S
1
TRANSFORMER
ASSEMBLY
17011S
2
SCR
ASSEMBLY
18696S
1
SHUNT
ASSEMBLY
14241S
2
AC INPUT JUMPERS
29101S
1
CONTROL MODULE (W/ ELECTRONIC BOARD #21175)
14123S
1
TEMP
TRANSDUCER, 10' (BOX W/ ADHESIVE)
14126S
1
TEMP
TRANSDUCER, 30' (BOX W/ ADHESIVE)
29741S
1
TEMP TRANSDUCER, 10' (W/ TERMINAL)
29742S
1
TEMP TRANSDUCER, 30' (W/ TERMINAL)
04401S
1
TRANSFORMER
CAP
15032S
2
OUTPUT
CAP
14897S
1
CIRCUIT BREAKER ASSEMBLY
22908S
1
COVER
ASSEMBLY
14786S
2
DIODE
ASSEMBLY
14484S
1
TERMINAL TAP STRIP
03837S
2
FUSEHOLDER,
ASSEMBLY
12717S
1
VARISTOR ASSEMBLY W/ CAP, VR1
15028S
2
FUSE
14789S
1
TAP STRIP ASSEMBLY, W/ I/O STUDS
14759S
2
VARISTOR ASSEMBLY, VR2
14197S
4
BUSHINGS, 1" DIA.
31126B
1
VARISTOR ASSEMBLY, AC, 320V, Lot size 10
22943S
1
AMMETER, 50 AMP, SNAP-IN
27319S
1
AMMETER, 50 AMP, CORNER MOUNT
22984S
1
BASE
ASSEMBLY
23059S
1
CONTROL
CABLE
15194S
1
HEATSINK ASSEMBLY W/SCR
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.
