The GIC MA21DN is a compact voltage monitoring relay offering essential protection and configurable delay.
🔧 Technical Highlights:
- Supply Voltage: 208–480 VAC
- Functions: Phase sequence (rotation) and phase failure monitoring; some models also detect phase asymmetry
- Timing Range: ON delay selectable 0.5–15 s (model specific)
- Output Contacts: 1 C/O or 2 C/O (depending on variant)
- Contact Rating: 5A @ 250 VAC / 28 VDC (resistive)
- Adjustable ON/OFF delays
- LED indication
- Compact DIN rail design
✅ Benefits:
- Compact design suits tight enclosures and field panels
- Reliable detection of common 3-phase faults
- Adjustable ON delay supports variable load types
🚀 Applications:
- HVAC systems
- Pump stations
- Small machinery starters
MA21DN provides essential voltage protection in a slim profile.
FAQs
- Q: What supply range does the relay monitor?
A: It is specified for 415 VAC (assumed) systems.
- Q: What output contacts are provided?
A: It provides 1 C/O relay.