Thermistor protection relay RTZ-1M in an ultra thin 13mm case!

• Protection of motors and other equipment from overheating

• Control of up to 6 sensors at the same time
• 1 normally open contact
• Control of short circuit of sensors
• Can operate with bimetallic contacts
• Is possible to operate with the memory of the alarm or self-healing (auto power on cooling)
• Indication of the relay operation
• Width of case is 13mm

Article about thermistors and their application

 

 Thermistor relay RTZ-1M is designed to protect the motors from overheating during prolonged start or stop, undervoltages, overvoltages or over-switching frequency, contamination of channels of cooling coils, etc. The relay is connected to thermoresistive sensors (PTC) or bimetallic thermocontacts built-in the motor winding.

 

 Relay is produced in a plastic case with a unified front connection wires power and switched circuits. Mounting is carried out on a DIN rail  width 35mm (GOST R IEC 60715-2003) or on a smooth surface. To set on a smooth surface, you need to push locks. Terminal design provides robust clamp wires up to 2,5mm². On the front panel there are: green indicator of power on "U", yellow indicator of actuation built-in executive relay "", red indicators "Short circuit of sensors" and "Overheating" for visual analysis alarm modes of the engine. On the side panel of the case there is a switch of operating modes: 1 - PTC or thermocontact, and 2 - operation with memory and auto power while cooling.

 The relay controls alarm modes of engines, that are manned by built in temperature sensors, which are used as a PTC thermistor (PTC resistors) or bimetallic thermocontacts.