Over-Limit Alarm

DR-1 Electronic Single-Channel Presettable Over-Limit Circuit Breaker (Panel-Built-in)

Product Introduction: The DR-1 (CQ-05) over-limit circuit breaker can be combined with other master control instruments to provide over-temperature or over-limit breaking protection for controlled objects when the master instrument loses control or the SCR device breaks down and short-circuits. It features good reliability, vibration resistance, strong anti-interference ability and easy installation, and is suitable for cutting off system energy or alarming when the temperature, pressure, etc. of various boxes, furnaces or the environment exceeds the set upper limit. This type of over-limit circuit breaker can place the control section in a suitable position inside the equipment, with only the digital switch for setting the over-limit value on the equipment panel, giving the equipment good overall integrity, easy layout and good versatility.

Main Technical Indicators: 1. Matched sensors and measuring ranges: K 0-999℃; Pt100 0-400℃; pressure sensors, etc.; 2. Setting error: ≤2.5% F.S ±3℃; 3. Setting method: digital switch setting; 4. Hysteresis: approx. 1.5% F.S; 5. Output contact capacity: AC250V 5A (resistive load); 6. Power supply: AC 220V±15% 50Hz, power consumption approx. 3W

DR Series Electronic Multi-Channel Over-Limit Circuit Breaker (Panel-Builtin)

Product Introduction: Working with temperature sensors such as thermocouples, the DR series electronic multi-point over-temperature circuit breaker can track and detect the temperature of 1 to 4 objects. When the detected value reaches the set breaking temperature, the output contact switches immediately, cutting off the heating power of the detected object; it can also switch on alarm and disaster-prevention equipment. With corresponding sensors, it can also provide over-limit breaking protection for industrial parameters such as humidity, pressure and flow.

Main Technical Indicators: 1. Detection channels: 1-4; 2. Breaking temperature selection: any value within 0-1200℃; 3. Breaking temperature setting: preset by the manufacturer; 4. Setting error: ≤±5% F.S; 5. Hysteresis: about 2.5% of full span; 6. Breaking contact capacity: 3A 250V AC; 7. Mounting hole dimensions: 92×85; 8. Installation: panel-built-in