30
Chapter 3
Figure 3-21.
Explanation of White Rodgers Potential Relay Code.
128-
12
2-
13
3
5
C
A
Type of
Bracket
Mounting
Position
Contact
Structure
Terminals,
Type and
Location
Customer's
Part Number
(To be stamped on relay)
Potential
Relay
Type
Coil Group
(Continuous
Voltage)
Calibration
(Hot Pick Up)
(Volts)
11 = Flat Bracket remote (Tecumseh)
12 = "L" Bracket (Tecumseh)
16 = "L" Bracket for "FB" model compressors
20 = "L" Bracket for Tecumseh Twins = 1 1/2 HP and larger
21 = "L" Bracket for capacitor box mounting
29 = Flat Bracket (Marion) was "14" (under cover)
See note on page 31.
1 = Face down
2 = Face up
3 = Face out - horizontal - numbers upside down
4 = Face out - 90 clockwise from number 3 position
5 = Face out - horizontal - numbers right side up
6 = Face out - 90 counterclockwise from number 3 position
2 = SPNC - less than 1 1/2 HP
6 = SPNC - 1 1/2 HP and Larger
11 = 3 screw terminal
12 = 4 screw terminal (seldom used)
13 = 5 screw terminal
23 = 5 quick connect terminals
1 = 130
2 = 170
3 = 256
4 = 336
5 = 395
6 = 420
7 = 495
A = 260-280
B = 280-300
C = 300-320
D = 320-340
E = 340-360
F = 350-370
G = 360-380
H = 365-395
J = 120-130
K = 130-140
L = 140-150
M = 150-160
P = 170-180
R = 180-190
S = 190-200
T = 200-220
U = 220-240
V = 240-260
W = 210-230
Note: Room temperature calibratio
n is 5 to 7% lower than these values.
Example: 128-122-1335CA
