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Trafag AG sensors & controls
Data Sheet MST 624/634

Data Sheet MST 624/634

Product catalog summary

Overview: The document is a technical datasheet for the Ministat MST 624/634 thermostats by Trafag Sensors & Controls, a Swiss company specializing in high-quality sensors and monitoring instruments for pressure and temperature measurement. The thermostats are used in various applications such as machine tools, HVAC, process technology, and water treatment.

Specifications:

Direct mounting thermostat with adjustable or non-adjustable switching differential.
Measuring range from -30°C to +350°C with a repeatability of ±0.5% FS.
Output signal is a floating change-over contact with approval EN60730-1/EN60730-2-9.
Protection rating of IP54.

Ordering Information:

Custom build codes for external (624) and internal (634) adjustments.
Microswitch options include small, average, gold-plated contacts, and adjustable switching differentials.
Sensor material is copper with various diameter and temperature range options.
Protection tube options in brass nickel-plated or stainless steel with different lengths.

Technical Data:

Accuracy: Repeatability ±0.5% FS, scale accuracy ±2% FS.
Environmental conditions: Ambient temperature ranges from -30°C to +70°C depending on the sensor range.
Mechanical data: Sensor housing and protection tube details provided, with a weight of approximately 430g.
Electrical connection: Cable gland M16x1.5, terminal screw 3 x 1...2.5 mm².

Switching Differential:

Microswitch 10: Fixed value, not adjustable, differential ranges from 0.3°C to 2°C.
Microswitch 11/21: Fixed value, not adjustable, differential ranges from 0.7°C to 4°C.
Microswitch 24: Adjustable value, differential ranges from 4°C to 84°C.
Microswitch 25: Adjustable value, differential ranges from 0.7°C to 40°C.

Electrical Data:

Switch rating varies with resistive and inductive loads across different voltages.
Microswitch types include small, average, gold-plated contacts, and adjustable differentials with specific ratings for AC and DC.

Additional Information: Further documents and instructions are available on Trafag's website.

Catalog excerpts

Machine tools HVAC Process technology Water treatment Short response time Protection IP54 Electrical connection on terminal screw Technical Data Designation of application Direct mounting thermostat Switching differential Measuring range Output signal Floating change-over contact Trafag Sensors & Controls Switzerland www.trafag.com [email protected] Swiss based Trafag is a leading international supplier of high quality sensors and monitoring instruments for the measurement of pressure and temperature.

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MST 624/634 Ordering information/type code XXX XX XXXXXXXXX XXXX XXXX XX Custom build code External adjustment Internal adjustment Small switching differential, not adjustable Average switching differential, not adjustable With gold plated contacts, not adjustable Adjustable large switching differential Adjustable standard switching differential Protection tube For fixing option 12, stainless steel, G1/2” 1) For fixing option 35, brass nickel plated, G1/2” 1) For fixing option 35, stainless steel, G1/2” 1) Protection tube length For fixing option 12, brass nickel plated, G1/2” 1) Protection tube...

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MST 624/634 Standard products (extra short lead time) Product No. Type Code MST8015 MST8040 MST9511 MST9515 MST9540 MST15015 MST15040

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Temperature compensated with bimetal switch lever Ambient temperature Range ≤ +45°C: -30...+50°C Range +45...+250°C: -30...+70°C Range > + 250°C: -10...+70°C (Important: Temperature at sensor may not exceed maximum sensor temperature) Storage temperature Sensor housing Protection tube Screwed cable gland Dielectric strength Life time (mechanical) Microrupteur 10/11/25: 20 Mio. cycles Microswitch 21: 0.5 Mio. cycles Microswitch 24: 0.3 Mio. cycles Cable gland Terminal screw Electrical connection Switching point Switching differential Mechanical Data Environmental conditions Additional information...

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MST 624/634 Switching differential typ. Range Microswitch 10 Switching differential (fixed value, not adjustable) Microswitch 11/21 Switching differential (fixed value, not adjustable) Microswitch 24 Switching differential (adjustable value) Microswitch 25 Switching differential (adjustable value) Electrical data switch Rating Resistive Load (Inductive Load) Type 10 Features Small switching differential, not adjustable Average switching differential, not adjustable Gold plated contacts, not adjustable Adjustable standard switching differential Adjustable large switching differential Electrical...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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