Voltage Monitoring Relay - 240 V AC UV/OV, 1 C/O is a voltage monitoring relay designed for under/over voltage monitoring on 240 V AC supplies. It provides UV/OV monitoring with one C/O relay output for control-panel protection circuits.
🔧 Technical Highlights:
- Supply / Input: 240 V AC
- System Type: Single-phase or 3-phase 4-wire
- Monitoring Type: Under voltage and over voltage monitoring
- Relay Output: 1 C/O
- Contact Rating: 5 A @ 250 V AC / 28 V DC resistive
- Operating Temperature: -15°C to +55°C
- Mounting: Base / DIN rail
- Degree of Protection: IP 20 terminals, IP 40 enclosure
✅ Benefits:
- Makes the monitored supply condition clear at the control-panel level.
- Provides relay output switching for alarms, interlocks or protection circuits.
- Helps maintenance teams identify supply faults before connected equipment is restarted.
- Supports reliable motor, pump and distribution-panel operation.
🚀 Applications:
- Single-phase and 3-phase 4-wire control panels
- Pump, fan and compressor panels
- Industrial distribution boards
- Automation fault signalling circuits
MD71B9 provides clear voltage monitoring relay performance for dependable panel protection and fault signalling.
FAQs
- Q: What does this voltage monitoring relay monitor?
A: It monitors the specified supply conditions and switches its relay output when the selected fault condition is detected. - Q: What is the main selection detail for MD71B9?
A: 240 V AC UV/OV monitoring for single-phase or 3-phase 4-wire supplies, 1 C/O.