The GIC MG21DF is a 3-phase monitoring relay for 208-480 VAC systems. It protects against under-voltage, over-voltage and single phasing, with an adjustable OFF delay to ride through short disturbances.
🔧 Technical Highlights:
- Supply Voltage: 208–480 VAC
- Functions: Under/Over voltage monitoring with phase loss & sequence detection; adjustable thresholds and delays
- Timing Range: ON/OFF delay selectable up to 15 s (model specific)
- Output Contacts: 1 C/O or 2 C/O
- Contact Rating: 5A @ 250 VAC / 28 VDC (resistive)
- Asymmetry and neutral-loss detection (some models)
- LED indications
✅ Benefits:
- Prevents nuisance trips on momentary dips
- Protects motors and drives from damaging voltages
- Ideal for wide-ranging plant supplies
🚀 Applications:
- Pumps, compressors and fans
- Material handling and conveyors
- General industrial control panels
MG21DF combines UV/OV and single-phasing protection with a practical OFF-delay for resilient control.
FAQs
- Q: What supply range does the relay monitor?
A: It is specified for 208-480 VAC, 3-phase systems.
- Q: What output contacts are provided?
A: It provides Relay contacts.