Stem thermostat series TH 140

05. - resistant thermostat IP 44 load up to 15A

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• Datasheet

Description

• temperature sensitive element is the stem of thermostat, consisting of: for TH 140 and TH 143 dilating brass for TH 141 and TH 144 anticorrosive tube
• temperature expansion of the tube is transferred by invar bar through lever gearing onto switching mechanism, which is placed in a waterproof head
• regulatory button for required temperature setting is also placed in a waterproof head and may be arrested, so that the setting can not be changed by means of vibration, etc.
• for thermostat mounting into the regulated environment use union nut on thermostats stem
• thermostats TH 140 and TH 141 are designed for direct loading - switching contacts are bypassed by arc-suppresion condenser
• thermostaty TH 143 and TH 144 are designed for alternate loading

Technical parameters

• regulatory range: 20-140°C (TH140,143) 100-200°C (TH141, 144)
• switching temperature difference: 1-4K (TH140, 143) 1-6K (TH141,144)
• stem length: 303 (TH141, 144); 350mm (TH140,143)
• setting accuracy: 10%
• contact load: 60V, 1A ss; 120V, 0,5A ss (TH140, 141) 250V st, 15A st (TH143,144)
• protection: IP 44

Specification

These thermostats are temperature dependent single-pole switches, which are designed for temperature regulation in liquid environment.

Suitable for hot-water heating regulation of thermoplastic and rubber moulding presses, further for regulation and temperature detection of water and oil baths.

The core of these thermostats is a reliable mechanical system, that has no power consumption itself. For assembly in liquid environment it is necessary to use a protection well.

The stem must not be exposed to mechanical stress and must be placed in a way, so that it can freely dilate. Thermostats working position is arbitrary.