Over limit circuit breaker

DR series electronic multi-channel over limit circuit breaker (screen built-in)

Product Introduction: The DR series electronic multi-point over temperature circuit breaker, combined with temperature sensors such as thermocouples, can track and detect the temperature of 1 to 4 objects. When the detection value reaches the set breaking temperature value, the output contact is immediately switched to cut off the heating power supply of the detection object, or the alarm and disaster relief equipment can be connected. Equipped with corresponding sensors, it can also be used for over limit circuit protection of industrial parameters such as humidity, pressure, and flow rate.

Main technical indicators:

1. Number of detection channels: 1-4, 85

2. Open circuit temperature selection: any value within 0-1200 ℃

3. Setting of circuit breaker temperature value: pre-set by the manufacturer

4. Setting error: ≤± 5% F.S 92

5. Return difference: about 2.5% of the full range

6. Circuit breaking contact capacity: 3A 250V AC

7. Installation hole size: 92 × 85

8. Installation method: Built in screen type

Network optimization materials:

When selecting a bimetallic thermometer, practical considerations should be fully taken into accountProfessional temperature sensor priceApplication environment and requirements, such as dial diameter, accuracy level, installation and fixing method, type of measured medium, and environmental hazards. In addition, it is also important to pay attention to factors such as cost-effectiveness and maintenance workload.

in additionBrand temperature sensor priceDuring the use of bimetallic thermometers, the following points should be noted:

A、 The length of the bimetallic thermometer protection tube immersed in the measured medium must be greater than the length of the temperature sensing element. Generally, the immersion length is greater than 100mm, and the immersion length for the 0-50 ℃ range is greater than 150mm to ensure measurement accuracy.

B、 Various bimetallic thermometers are not suitable for measuring the temperature of media in open containers, and live contact thermometers are not suitable for use in control circuits with high working vibration.

C、 During the storage, installation, and transportation of bimetallic thermometers, collision with the protective tube should be avoided, and the protective tube should not be bent or deformed, and the thermometer should not be used as a wrench.

D、 The thermometer should be regularly inspected under normal use. It is generally recommended to do so every six months. Electric contact thermometers are not allowed to operate under strong vibrations to avoid affecting the reliability of the contacts.