Procurement managers rarely finalize MK21D5 without reviewing GIC Dms120, GIC Temperature Controller and GIC GIC, ensuring that the chosen component meets budget, compliance, and delivery conditions.
GIC MK21D5 Voltage Monitoring
The GIC MK21D5 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 | MK21D5 |
GIC MK21D5 Voltage Monitoring β 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 |
| 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 MK21D5 Voltage Monitoring Relay is designed for 208β480 VAC three-phase systems, with a supply tolerance of -12% to +10% and frequency support at 50/60 Hz. The MK21D5 GIC unit consumes just 3 VA, offering energy efficiency while providing reliable phase loss protection. It delivers fast fault detection with an ON delay below 750 ms and a trip time of only 100 ms, reducing downtime risks. A relay output rated at 5A @ 250 VAC or 30 VDC ensures robust integration with alarms and control systems. Compact at 18 Γ 58.5 Γ 90 mm and weighing 70 g, the GIC MK21D5 combines long service lifeβ100,000 electrical and 3 million mechanical operationsβwith UL 94-V0 flame-retardant housing and IP20/IP30 protection for safe installation and dependable performance.
The GIC MK21D5 Voltage Monitoring device is widely applied in motor protection, automation panels, HVAC systems, elevators, and water pumps where reliable supervision is critical. Engineers trust its rapid response to phase faults for protecting sensitive assets, while maintenance teams appreciate its compact size and DIN rail mounting for faster servicing. With operating temperatures from -15Β°C to +60Β°C and tolerance for 95% humidity, the Voltage Monitoring Relay MK21D5 consistently performs in harsh industrial and commercial conditions, reducing downtime, extending equipment life, and improving energy efficiency across diverse applications.
The MK21D5 reflects GICβs proven expertise in automation and electrical protection, offering a balance of precision, durability, and adaptability. Engineers reviewing the MK21D5 Sensor or datasheet value its fast reaction time and compact footprint, which make it ideal for modern automation systems. Industrial buyers recognize the MK21D5 GIC Voltage Monitoring Relay as a dependable choice for safeguarding motors, compressors, and process equipment. Backed by GICβs trusted engineering, the GIC MK21D5 provides confidence to maintenance teams and industries that need consistent monitoring. By ensuring protection, operational stability, and safety, the Voltage Monitoring Relay MK21D5 stands out as a reliable long-term solution for industrial and commercial environments.
