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Safety temperature cut outs STB LS1/971 FU | 67276X
Safety temperature cut outs STB With capillary tube
in-stock items
- ideal for heating and process industries
- for protection against exceeding the maximum temperature
- no external power supply
- manual reset
There are many application areas for safety temperature cut outs in the heating and process industries. In conventional oil-fired or gas-fired boilers, these devices are used to monitor the boiler water. The safety temperature cut outs feature a manual reset button which must be actuated for unlocking.
If the temperature at the probe increases, the measuring liquid in the measuring system expands. If the temperature exceeds a critical value, the device triggers, the voltage-free contact switches and the system is set to a defined safe state. When the temperature has decreased by approx. 15 K, the device can be unlocked and the system resumes operation.
- Type
- LS1
- Switching point
- see ordering table
- Tolerance
- +0 K/-6 K at 20 °C
- Influence of ambient temperature
- 0.25 °C/°C
- Switching differential
- ∆T 15 ± 8 K
- Fail safe
- 1 - 1
- Probe
- Copper
- ∅ 6.5 x 95 mm
- Probe element
- liquid-filled
- Operating temperature range
- Probe:
- max. 125 °C
- Housing:
- max. 85 °C
- Capillary tube
- Cu capillary tube with PVC coating, black
- Length:
- 1000 mm
- Degree of protection
- IP 00 (EN 60529)
- Time constant
- DIN-tested
- DIN EN 14597:2012-09
- registration number:
- TR/STB 1211
- electrical switching contact
- Changeover contact
- Contact rating
- NC:
- AC 250 V, 16 (2.5) A
- NO:
- AC 250 V, 0.5 A