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Part Number 009-120-23 is a 120 VAC Triplex Alternator.
This Alternating Relay is a 3 input, 2 or 3 output, solid state Alternator that equalizes output load operational time. The opening of switch SW1 on pin 4 causes the Alternating Sequence Relay to change to the next sequence in preparation for the next cycle. For each cycle, the Three Pump Sequencers outputs are turned on in a 1-2-3, 2-3-1 or 3-1-2 sequence, as switches SW1-SW3 are closed. A load select switch permits the Triplex Alternator to be used as a duplex alternator until system expansion requires Triplex operation.
Unit of Measure


UL File No.

N/A #E101681

Product Type

N/A Triplex Alternator

Load Select (Load Alternation)

N/A 2 or 3 (Selectable)

Operating Voltage (AC)

N/A 120 V

Relay Output

N/A 6 A

Supply Frequency

N/A 50/60 Hz

Output Current Rating

N/A 6 A

No. of Inputs

N/A 3

Power Dissipation

N/A < 2 Watt

Operating Temperature

N/A -20 to +60 ºC

Storage Temperature

N/A -45 to +85 ºC

Enclosure Material

N/A Polycarbonate Plastic

Base Material

N/A Plug in - Phenolic Surface Mount - Polycarbonate Plastic


N/A No Suffix = Surface Mount P = 12 Pin Plug In Base

Socket For Plug In Base

N/A 12 Pin Rectangular, P/N SD12-PC