Panel-mounted thermostats from the ETH series monitor thermal processes. The devices are available as safety temperature monitors (STW) and safety temperature limiters (STB). In the event of a malfunction the STB places the system being monitored in a safe operating status.
| general technical data | |
|---|---|
| Switching function | Safety temperature monitor (STW); restart lock with safety temperature limiter (STB); use of the safety temperature monitor (STW) as a safety temperature limiter (STB); self-monitoring with safety temperature limiter (STB) and safety temperature monitor (STW) |
| Control range, gas-filled | Max. 20 to 500 °C |
| Control range, liquid-filled | Max. 50 to 300 °C |
| Capillary length | As standard 1000 mm, maximum 5000 mm |
| Capillary material | Copper (Cu) ø 1.5 mm or stainless steel (CrNi) ø 1.5 mm |
| Temperature probe material | Copper (Cu) material number 2.0090, hard soldered, stainless steel (CrNi) ø 1.5 mm material number 1.4571 |
| Maximum switching capacity | AC 230 V 10 %, 10 (2) A, cos ϕ = 1 (0.6), DC 230 V 10 %, 0.25 A with switching differential |
| Process connection | Plain cylindrical probe (as a standard feature); protection tube for screwing in |
| Insertion length | Standard lengths: 100, 120, 150, 200, or 300 mm |
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