Supco 90340 Installation Instructions

General Purpose Switching Relays
Installation Instructions
Supco series 903 relays are double pole, double throw (DPDT) devices primarily
used for various applications in heating, air conditioning and refrigeration. They
are also suitable for general purpose switching applications in appliance vending
machines, fan controls and business machines provided the device being con-
trolled is within the electrical limits of the relay.

REPLACEMENT PROCEDURE:

1. CAUTION: Disconnect power supply before servicing equipment.
2. Identify and remove wires from defective relay.
3. Remove defective relay and install Supco replacement.
4. Refer to switch diagrams below and connect wires accordingly.
5. Restore power and check operation.
Caution: Do not exceed contact ratings.
Do not connect power contacts to pilot duty contacts.
1 3
2
4 6
5
Terminals 1 & 2, 4 & 5 are normally closed
Terminals 1 & 3, 4 & 6 are normally open
Supco Coil Terminal
No. Voltage
90340 24
90341 110/120
90342 208/240
PO Box 21 • 2230 Landmark Place • Allenwood, NJ 08720 • USA
Sealed Unit Parts Co., Inc.

Contact Rating

Full Load Amps
Resistive Amps*
Locked Rotor Amps 60
Horsepower
*0.75 power factor
Terminals
1-2-3 4-5-6 Essex/RBM
power power
power power
power power
Power Pilot
208/240V 208/240V
120V 277V 120V 277V
12 6 - -
15 15 3 3
35 - -
3/4 3/4 1/10 1/10
Cross Reference
Honeywell
90-340 R8222D1014
90-341 R4222D1013
90-342 R4222N1021
F235-599