Ra889a switching relay, Fig. 7. ra889a control options – Honeywell RA889A User Manual

Page 7

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RA889A SWITCHING RELAY

7

68-0216—2

Fig. 7. RA889A control options.

L1

L2

COM

R(T)

N.C.

N.O.

C

W(T)

RA889A

M13317A

A. FOR 24V THERMOSTAT CONTROL

R

C

W

THERMOSTAT

B. FOR LINE VOLTAGE CONTROL

C. FOR EXTERNAL SEPARATE LOW VOLTAGE POWER SOURCE

OPTIONAL

L1, (HOT)

NEUTRAL

LINE VOLTAGE

CONTROLLED

OUTPUTS

X2

X1

LOW VOLTAGE
CONTROLLED OUTPUT

L1

L2

COM

N.C.

N.O.

C

RA889A

JUMPER

LINE VOLTAGE

CONTROL

NEUTRAL

X2

X1

L1

L2

COM

N.C.

N.O.

C

RA889A

NEUTRAL

X2

X1

24V CONTROLLER
INPUT SUPPLY

R(T)

W(T)

R(T)

W(T)

1

REQUIRED FOR OUTPUT LED OPERATION.

2

FOR SERIES 10 OR OTHER HARDWIRED ELECTRONIC 3-WIRE
THERMOSTATS.

3

WARNING! ELECTROCUTION HAZARD. POWER SUPPLY CAN
CAUSE SEVERE INJURY OR DEATH. DISCONNECT POWER BEFORE
WIRING OR SERVICING L1. POWERED RELAYS MUST BE WIRED AS
DRY CONTACTS.

1

2

3

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