In most procurement cycles, MC21D5 is considered with GIC Dms120, GIC Temperature Controller and GIC GIC, giving decision-makers confidence that theyโve chosen the most dependable component.
GIC MC21D5 Voltage Monitoring
The GIC MC21D5 Voltage Monitoring offers 208 - 480 VAC, (3 Phase 3 Wire) supply voltage, 1 C/O relay output, Base / DIN rail mounting, IP 20 for Terminals, IP 30 for Enclosure 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 | MC21D5 |
GIC MC21D5 Voltage Monitoring โ Technical Specifications
| Specification | Value |
|---|---|
| Supply Voltage | 208 - 480 VAC, (3 Phase 3 Wire) |
| Supply Variation | -12% to + 10% |
| Frequency | 50/60 Hz |
| Power Consumption (Max.) | 3 VA |
| Phase Loss | Yes |
| Phase Asymmetry | 30% Fixed |
| ON Delay | < 750 ms |
| Trip Time (OFF Delay) | 100 ms |
| Relay Output | 1 C/O |
| Contact Rating | 5A @ 250 VAC / 30 VDC (Resistive) |
| Electrical Life | 1X10^ 5 |
| Mechanical Life | 3X10^ 6 |
| Utilization Category AC-15 | Rated Voltage (Ue): 120/240 V, Rated Current (Ie): 3.0/1.5 A |
| Utilization Category DC-13 | Rated Voltage (Ue): 24/125/250 V, Rated Current (Ie): 2.0/0.22/0.1 A |
| Operating Temperature | - 15 C to +60 C |
| Storage Temperature | - 20 C to +80 C |
| Humidity (Non Condensing) | 95% (Rh) |
| Enclosure | Flame Retardant UL 94-V0 |
| Dimension (W x H x D) (in mm) | 18 x 58.5 x 90 |
| Weight | 70 g |
| Mounting | Base / DIN rail |
| Degree of Protection | IP 20 for Terminals, IP 30 for Enclosure |
GIC MC21D5 Voltage Monitoring Relay is designed for 208โ480 VAC three-phase systems with -12% to +10% supply variation tolerance. The MC21D5 GIC device consumes only 3 VA, offering efficiency while providing phase loss detection and fixed 30% asymmetry monitoring. With an ON delay under 750 ms and a rapid trip time of 100 ms, it ensures quick response to faults. Its relay output is rated at 5A @ 250 VAC or 30 VDC, making it reliable for integration with alarms and control systems. The GIC MC21D5 has an electrical endurance of 100,000 operations and a mechanical life of 3 million cycles. Compact at 18 ร 58.5 ร 90 mm and just 70 g, enclosed in UL 94-V0 flame-retardant housing with IP20/IP30 protection, it combines safety, durability, and ease of installation.
The GIC MC21D5 Voltage Monitoring device is used in automation panels, HVAC systems, water pumps, elevators, and motor protection circuits. Engineers rely on its fast response to safeguard equipment from costly failures, while maintenance teams value its simple DIN-rail mounting and compact design for quick installation. Capable of operating from -15ยฐC to +60ยฐC with up to 95% humidity tolerance, the Voltage Monitoring Relay MC21D5 delivers consistent performance across factories, commercial complexes, and workshops. By reducing downtime and extending the service life of critical equipment, it plays a vital role in modern industrial automation networks.
The MC21D5 reflects GICโs expertise in automation and power supervision, offering precise monitoring and rugged construction for industrial needs. Engineers studying the MC21D5 Datasheet confirm its specifications, reliability, and suitability for demanding environments. Trusted in multiple industries, the MC21D5 GIC Voltage Monitoring Relay reduces operational risks, improves energy efficiency, and enhances equipment safety. Industrial buyers recognize GIC MC21D5 as a dependable choice, while maintenance teams rely on its proven service life and consistent fault detection. By combining performance, durability, and flexibility, the GIC MC21D5 Sensor strengthens confidence in GICโs monitoring portfolio, making it a preferred solution where dependable voltage protection is critical.
