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Safety temperature cut outs STB LS1/971 FU | 67277X

Safety temperature cut outs STB With capillary tube

in-stock items

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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

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:: 1500 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

Click the corresponding image for detail views, additional information and dimension tables.