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To ensure accuracy, please note that images may be representative. Refer to the product data sheet for detailed specifications.
| Manufacturer | TimeMark |
| Manufacturer Product Number | 442-120 |
| Description | Alternating Relay; Sequence On, Simultaneous Off; 4 x SPST-NO (one per load) |
| Datasheet | Download Datasheet |
The TimeMark 442-120 is a multi-stage alternator for a 120 V AC, 50/60 Hz supply. Its float or pressure switches bring up to four pumps on one after the other, and it drops them all together when the STOP switch opens (sequence on, simultaneous off); DIP switches set how many pumps it runs, and the lead pump alternates every cycle.
Inputs: five dry contacts (STOP, 1-4), 1 mA at 12 V DC (do not apply voltage). Pump down or pump up; DIP switches enable each pump; remembers the next pump through a power loss. Power: 6 W max.
Output: 4 x SPST-NO (one per load), 5 A at 240 V AC or 30 V DC resistive. Mounting: panel mount, screw terminals. Indicator: Input LEDs and 4 MOTORS RUNNING LEDs; switch fault detection (blinking LED). It operates from -29 to +60 °C.
| Category | |
| Manufacturer | TimeMark |
| Model | 442 |