This document introduces the features and characteristics of ETSA-2 temperature switch, which can be used for temperature regulation, monitoring and over temperature protection.
The ETSA-2 combines a temperature switch, controller and a float switch in one compact unit. It offers a red two‑digit display, adjustable temperature set points (up to two steps), and optional relay contacts for temperature and level control.
The device is housed in an aluminum case (98 × 64 × 35 mm) with IP65 protection, operates from 20‑26 VDC (polarity protected) and can be supplied with 230 VAC for the relay output. It supports a measurement range of –55 °C to 125 °C with ±0.5 °C accuracy and includes configurable hysteresis and mounting options. This manual is written in German.
| Housing dimensions | 98 × 64 × 35 mm (L × W × H) |
|---|---|
| Housing material | Aluminum |
| Standard colour | RAL 7001 (gray) |
| Display type | Red 2‑digit display (13 mm) |
| Supply voltage (relay) | 230 VAC |
| Continuous current (relay) | 1 A |
| Control supply voltage | 20 – 26 VDC (polarity protected) |
| Control operating current | 35 – 45 mA |
| Temperature measurement range | -55 °C to 125 °C |
| Temperature accuracy | ±0.5 °C (‑20 °C … 125 °C) |
| Display resolution | 1 °C |
| Hysteresis | 3 °C |
| Operating temperature (device) | -20 °C to 80 °C |
| IP rating | IP65 |
It requires a 20 to 26 VDC supply that is polarity protected.
It measures from –55 °C up to 125 °C.
The unit is rated IP65.