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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 | 409-120 |
| Description | Liquid Level Control Relay; 1-100 kohm (adjustable); 2 s (fixed) |
| Datasheet | Download Datasheet |
The TimeMark 409-120 is a conductive liquid level control for a 120V AC (90-140V AC), 50-400 Hz supply. The relay drops out when the liquid reaches the probe.
Sensing: conductive probe (one level plus common). Probes: 1 (plus common). Sensitivity: 1-100 kohm (adjustable). Probe voltage: 15 V RMS; 5 mA max. Delay: 2 s (fixed). Reset delay: less than 1 s. Reset: automatic.
Output: 1C SPDT, 10 A at 240 V AC resistive. Mounting: plug-in, on an 8-pin octal (TimeMark 51X120 socket) base. Indicators: LED shows the relay state. Power: 2.5 W. It operates from -25 to +60 °C.
| Category | |
| Manufacturer | TimeMark |
| Model | 409 |
| Control Function | Single-point level control for conductive liquids: the relay drops out when the liquid reaches the probe |
| Number of Probes | 1 (plus common) |
| Level Sensing | Conductive probe (one level plus common) |
| Sensitivity Range | 1-100 kohm (adjustable) |
| Probe Voltage | 15 V RMS; 5 mA max |
| Input Voltage | 120V AC (90-140V AC), 50-400 Hz |
| Pickup Delay | 2 s (fixed) |
| Reset Delay | Less than 1 s |
| Reset Method | Automatic |
| Status Indicator | LED shows the relay state |
| Contact Configuration | 1C SPDT |
| Output Rating | 10 A at 240 V AC resistive |
| Mounting Type | Socketable |
| Termination Style | Plug In, 8 Pin (Octal) |
| Socket Family | 8 Pin Octal (TimeMark 51X120 socket) |
| Operating Temperature (Storage) (°C) | -25...+60 |
| Mechanical Life | 10,000,000 (100,000) |