The GIC DMS120 is a dual-output digital phase sequence and phase failure relay for 145-500 VAC systems. Two changeover contacts provide flexible control and interlocking for critical loads.
🔧 Technical Highlights:
- Supply Voltage: 145–500 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:
- Dual contacts for separate alarm and trip circuits
- Protects motors from reverse rotation and phase loss
- Compact, panel-friendly footprint
🚀 Applications:
- Elevators and hoists
- HVAC plant and chillers
- Industrial pumps and conveyors
DMS120 adds dual changeover outputs for enhanced control in 3-phase protection schemes.
FAQs
- Q: What supply range does the relay monitor?
A: It is specified for 145-500 VAC, 3-phase systems.
- Q: What output contacts are provided?
A: It provides 2 × C/O (SPDT) relays.