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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 | 403 |
| Description | Liquid Level Control Relay; 115V AC (105-130V AC), 60 Hz; Panel (in an enclosure) |
| Datasheet | Download Datasheet |
The TimeMark 403 is a duplex pump controller for a 115V AC (105-130V AC), 60 Hz supply. It runs the pumps down or up (set by N.O. or N.C. level switches), alternating them, with alarms.
Sensing: float or pressure switch contacts (12 V DC, 1 mA), or a TimeMark 404 level sensor. Set points: 4 (LOW, LEAD, LAG, HIGH). Pumps: 2, alternating or fixed lead. Controls: hand-off-auto switch per pump; lead pump selector; alarm test / silence / reset. Display: two pump run-time meters (99,999.9 h).
Output: 5 x SPST (pumps, alarm light, alarm bell, power fail), 10 A at 240 V AC resistive. Alarms: high level alarm bell and light; power-fail contact; remote pump alarms. Mounting: panel (in an enclosure). Indicators: pump running, remote alarm, level switch, alarm and power LEDs. Power: 10 W max. It operates from -29 to +60 °C.
| Category | |
| Manufacturer | TimeMark |
| Part Status | Discontinued |
| Control Function | Duplex pump control: it runs the pumps down or up (set by N.O. or N.C. level switches), alternating them, with alarms |
| Function Selection | Hand-off-auto switch per pump; lead pump selector; alarm test / silence / reset |
| Level Sensing | Float or pressure switch contacts (12 V DC, 1 mA), or a TimeMark 404 level sensor |
| Number of Set Points | 4 (LOW, LEAD, LAG, HIGH) |
| Number of Pumps | 2, alternating or fixed lead |
| Input Voltage | 115V AC (105-130V AC), 60 Hz |
| Status Indicator | Pump running, remote alarm, level switch, alarm and power LEDs |
| Display | Two pump run-time meters (99,999.9 h) |
| Contact Configuration | 5 x SPST (pumps, alarm light, alarm bell, power fail) |
| Output Rating | 10 A at 240 V AC resistive |
| Alarm Outputs | High level alarm bell and light; power-fail contact; remote pump alarms |
| Mounting Type | Panel (in an enclosure) |
| Operating Temperature (Storage) (°C) | -29...+60 |
| Mechanical Life | 10,000,000 (100,000) |