Thermal relay
Thermal relay TR is designed for integration into mine set (compact) stations and start-protection apparatus with voltage up to 1140 V of alternate current and frequency 50 Hz, which functions as an overheat control device for electromotors and other equipment with integrated semi-conducting or bimetallic intrinsically safe temperature detectors.
The relay can be designed in the following versions:
- TR-01 — for integration into mine set electrical equipment;
- TR-02 — for integration into mine start-protection apparatus.
Climatic version MCC (moderately cold climate) location category 5 according to State Standard 15150-69.
Relay electrical diagram is to:
- deactivate operating equipment or block activation of disengaged equipment in case temperature detector resistance exceeds 4 kOm;
- return the diagram into initial condition in case temperature detector resistance is lower than 1.7 kOm;
- prevent automatic switching in case of short-term supply voltage rise up to 150% from the rated voltage.
Basic specifications:
Parameter | Value | |
TR-01 | TR-02 | |
Power supply voltage, V | 42 | 36 |
Supply network frequency, Hz | 50 | |
Rated wattage, W | 0.6 | |
Dimensions, mm (max) | 96x39x28 | |
Maximum weight, kg | 0.15 | |
Operational mode — continuous | S1 | |
Maximum voltage switched by alternate current actuating relay contacts, V | 60 | |
Minimum current switched by actuating relay contacts, A | 2 | |
Level and type of explosion protection | [Ex ib] l | |
Extreme voltage deviation from the rated voltage, % | +15; — 20 | |
Ingress protection rating | lP 30 | |
Ambient temperature, ° C | from — 10 to + 35 | |
Relative air humidity at the maximum temperature (35±2)° C, % | 98±2 | |
Maximum altitude above sea level, m | 1000 | |
Minimum average error-free running time, h | 10000 | |
Minimum average operating life, years | 6 | |
Examples of relay order record
“Thermal relay TR-01 TU BY 600175052.008-2005”;
«Thermal relay TR — 02 TU BY 600175052.008-2005”.
See also
