F: Fiberglass
SS: Stainless Steel
A: TGIC Powder Coated Aluminum (specify color)
L: Lugs only – no shunts
JB: 0.01 Ω 6A ribbon shunt
SS: 0.001 Ω 25A ribbon shunt
SW: Holloway Type SW 50mv shunt
(50 Watt resistor spacing standard)
R: Adjustable Resistors in each circuit (specify resistance and wattage)
RH: Rheostat in each circuit (specify resistance and wattage)
P: Provisions for Resistors in each circuit
C: Conduit for Output (Specify Size, Length, & Type)
D: Blocking Diode
M: Meter for Output Circuits with Selector Switch
Z: Special Features (Specify)
JA A 18 24 20C JB P C Z Unit Description
1 2 3 4 5 6 7 8 Letter/number reference
