GIC Phase Failure Relay – MK21D5

Description

The GIC MK21D5 Phase Failure Relay is a compact and reliable device designed to protect 3-phase systems from phase loss, phase reversal, and phase asymmetry. With a slim width of 17.5mm, it is perfect for installations where space is limited. The relay provides rapid fault detection with ON/OFF delays under 550ms and includes LED indicators for easy monitoring.

Key Features:

• Phase Protection: Monitors for phase loss and phase reversal to prevent motor damage.

• Asymmetry Detection: Detects phase asymmetry with a fixed threshold of 30%.

• Compact Design: Slim 17.5mm width suitable for tight installations.

• Quick Response: ON/OFF delays < 550ms for rapid fault detection.

• LED Indicators: Clear power and fault indication.

• DIN Rail Mounting: Easy installation in control panels.

Ideal For:

• Industrial motors and pumps

• HVAC systems

• Machine control panels

• Control and distribution boards

Technical Specifications:

• Type: Phase Failure / Phase Sequence Relay

• Model: MK21D5

• Phase Configuration: 3-Phase, 3-Wire

• Supply Voltage: 208–480 VAC

• Frequency Range: 50/60 Hz

• Contact Configuration: 1 C/O (SPDT)

• Contact Rating: 5A @ 250 VAC / 30 VDC (Resistive)

• ON Delay: < 550 ms

• OFF Delay: < 550 ms

• Under Voltage Threshold: 10–18 V

• Over Voltage Threshold: 65 V ±10 V

• Mounting Type: DIN Rail

• Width: 17.5mm

• Protection Class: IP20, IP30

• Weight: 0.12 kg