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Part Number 550-141-859/0799
3
WMR-21 — Double pole/single throw switching relay
WMR-22 — Double pole/double throw switching relay
WMR-22 cross reference table
WMR-21 cross reference table
120 VAC
Circuit ON
Weil-McLain
Michigan City, IN
WMR-21
Switching Relay
T
L2 L1
3
4
5
6
RC
24V
T
W
Made in U.S.A.
120 VAC
Circuit ON
Weil-McLain
Michigan City, IN
Switching Relay
Made in U.S.A.
WMR-22
T
L2 L1
3
5
4
6
NO
NO
NC
NC
4
6
RC
24V
T
W
85902
24 VAC
Jumper
L2 L1
T/R
46
3
C
5
T/W
120 VAC
Relay coil
85903
120 VAC field wiring
120 VAC ground lead
120 VAC factory wiring
24 VAC field wiring
24 VAC factory wiring
24 VAC
Jumper
L2 L1
T/R
NO NC NO NC
C
T/W
120 VAC
85904
4646
3
5
Relay coil
120 VAC field wiring
120 VAC ground lead
120 VAC factory wiring
24 VAC field wiring
24 VAC factory wiring
Weil-
McLain
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WMR-22 AR822 SR501