Transformer thermometer Jumo 00491256

Transformer thermometer, -20..120°C, 150 mm, 2 switching contact
suitable for various engines

Jumo 00491256
608540/1080-643-00-0-874-8-106-26-46-150-21/430,5
608540108064300087481062646150214305

The transformer thermometer with a case made of high-quality, UV-resistant polyamide (protection class IP 54) has a case diameter of 80 mm. The measuring system used operates according to the fluid expansion principle. The temperature is indicated by a dial on a white scale with black lettering. The device has an accuracy class of 1.5 similar to DIN EN 13190. The temperature can be read in °C or °F through a plexiglas pane (PMMA). Two installed microswitches can be set independently of each other to the desired switch-off temperature by means of a screwdriver in the front pane. The device is characterized by a high switching point accuracy of +/-0.7 K related to the set switch-off point with rising temperature. The maximum permissible switching capacity of the installed changeover contacts is 5 A / 230 V AC each. The electrical connection is made via screw terminals and is protected by a cover cap. The switching difference (hysteresis) is approx. 1.5 % of the display range. The microswitch automatically switches back to the original state after the temperature has fallen below the switch-off temperature by this value. The contact adjustment is protected against improper adjustment by a cover. Furthermore, the thermometer is equipped with a drag indicator so that the maximum process temperature reached is recorded.The device has a protection tube with a diameter of 8 mm made of stainless steel (material no. 1.4571) and a screw connection made of brass. It is fixed by a thread G 1 form A according to DIN 3852/2, the rated position is max. 90°. The thermometer is used especially in the transformer industry, but can also be used universally for local temperature measurement of any kind. A decisive advantage is that no additional auxiliary energy is required for temperature measurement. The device is RoHS compliant and cadmium-free.