Before procurement teams confirm DMS120, they typically review GIC Temperature Controller, GIC Mg73Bh and GIC GIC to double-check performance ratings, stock availability, and supplier credibility carefully.
GIC DMS120 Voltage Monitoring
The GIC DMS120 Voltage Monitoring offers 145 - 500 VAC supply voltage, 1 C/O + 1 C/O relay output, Base / DIN mounting, IP-20 for Enclosure & Terminals, IP-40 with Front Facia for Dust cover degree of protection. Manufactured by GIC under the GIC Voltage Monitoring category, this model belongs to the GIC DM Series.

| Brand | GIC |
| Product Type | Voltage Monitoring |
| Model Number | DMS120 |
GIC DMS120 Voltage Monitoring – Technical Specifications
| Specification | Value |
|---|---|
| Supply Voltage | 145 - 500 VAC |
| Frequency | 45 to 65 Hz |
| Power Consumption (Max.) | 5 VA |
| Phase Loss | Configurable (Enable/Disable) (Default : Enable) |
| Phase Reverse | Configurable (Enable/Disable) (Default : Enable) |
| Phase Asymmetry | 2 to 50% |
| Under Voltage | Phase voltage : 90 to 288 VAC, Line voltage : 155 to 500 VAC |
| Under Voltage Hysteresis | 3 to 20VAC +/- 2V (7V Default) |
| Over Voltage | Phase voltage : 90 to 288 VAC, Line voltage : 155 to 500 VAC |
| Over Voltage Hysteresis | 3 to 20VAC +/- 2V (7V Default) |
| Under Frequency | 45 to 65 Hz |
| Over Frequency | 45 to 65 Hz |
| Frequency Hysteresis | 0.1 to 5 Hz |
| Asymmetry | Voltage : 5 to 99 VAC (Default 60V), Percentage : 2 to 50% |
| Hysteresis for Asymmetry | Voltage : 3 to 99 VAC +/- 2V (Default 7V), Percentage : 2 to 15% |
| ON Delay | 2sec to 999sec (Default : 5sec) |
| Trip Time (OFF Delay) | 0.1 to 999sec (Phase loss & Phase reverse : <100ms), Default : Neutral Loss is <500ms & UV, OV, Asymmetry fault 5sec |
| Relay Output | 1 C/O + 1 C/O |
| Contact Rating | 5A (Resistive) @ 240 VAC / 30 VDC |
| Electrical Life | 1X10^ 5 Operations |
| Mechanical Life | 1X10^7 Operations |
| Utilization Category AC-15 | 120/240 V, 3/1.5 A |
| Utilization Category DC-13 | 24/125/250 V, 2/0.22/0.1 A |
| Operating Temperature | -10°C to + 60°C |
| Storage Temperature | -20°C to + 70°C |
| Humidity (Non Condensing) | 95% (Rh) |
| Enclosure | Flame Retardant UL 94-V0 |
| Dimension (W x H x D) (in mm) | 36 x 90 x 67 |
| Weight | 100 g |
| Mounting | Base / DIN |
| Degree of Protection | IP-20 for Enclosure & Terminals, IP-40 with Front Facia for Dust cover |
The GIC DMS120 operates on a wide supply range of 145–500 VAC and frequency tolerance of 45–65 Hz, consuming only 5 VA for efficiency. This DMS120 Voltage Monitoring Relay is equipped with configurable protection against phase loss, phase reversal, under-voltage, and over-voltage conditions, ensuring reliable supervision of industrial systems. Engineers benefit from flexible hysteresis adjustment of 3–20 VAC, frequency hysteresis of 0.1–5 Hz, and an ON delay that can be set between 2 and 999 seconds. Its trip time, as low as 0.1 seconds, ensures quick reaction to faults. The dual relay outputs rated at 5A support dependable control integration. With a long mechanical life of 10 million operations and electrical endurance of 100,000 cycles, DMS120 GIC provides long-lasting dependability. Housed in a flame-retardant UL 94-V0 enclosure with IP20/IP40 protection, compact dimensions of 36 × 90 × 67 mm, and DIN rail or base mounting, it is safe, durable, and easy to install.
The GIC DMS120 Voltage Monitoring unit is widely applied in industrial automation panels, motor protection circuits, and commercial power distribution systems. Maintenance engineers use it to safeguard compressors, motors, and HVAC systems from supply imbalances, while facility managers rely on its precise fault detection to prevent downtime in elevators, pumps, and lighting systems. With its ability to handle high humidity environments and a temperature range from -10°C to +60°C, it performs consistently across factories, workshops, and commercial complexes. The Voltage Monitoring Relay DMS120 helps extend equipment life, reduce costly breakdowns, and improve energy efficiency in demanding environments.
The DMS120 Voltage Monitoring Relay combines advanced fault detection with rugged durability, making it a preferred solution for engineers seeking reliable protection. Trusted across automation, HVAC, and electrical infrastructure, the GIC DMS120 delivers stability, operational safety, and long service life. Industrial buyers value its flexible configuration, quick installation, and proven reliability, while maintenance teams appreciate its ability to reduce downtime and protect sensitive equipment. With GIC’s engineering expertise, the DMS120 GIC unit stands as a dependable choice for industries requiring accurate and safe voltage supervision. For industrial automation systems, the GIC DMS120 Voltage Monitoring Relay ensures precision, efficiency, and trusted performance.







