KAEL ke-FKR4(D) Digital Monitoring Device in Pakistan

The KAEL ke-FKR4(D) Digital Monitoring Device is a three-phase electrical monitoring and protection relay for industrial electrical systems. It monitors AC voltage and system frequency to help protect motors, pumps, compressors, generators, and other equipment from abnormal supply conditions. Its digital display and adjustable protection settings support convenient monitoring inside electrical control panels.

Features:

• Three-phase AC electrical monitoring.
• Phase failure detection.
• Incorrect phase sequence protection.
• Adjustable overvoltage protection.
• Adjustable undervoltage protection.
• Voltage imbalance monitoring.
• Overfrequency and underfrequency monitoring.
• Three-digit LED display for voltage and frequency.
• TRUE RMS voltage measurement.
• Adjustable protection settings, time delays, and reset function.

Specifications:

• Product: Digital Monitoring Device.
• Manufacturer: KAEL.
• Model: ke-FKR4(D).
• Type: Digital phase failure and phase sequence protection relay.
• Monitoring system: Three-phase AC; listed system voltage: 380V AC.
• Rated supply: 220/230V AC (L1–N), depending on version.
• Operating voltage range: 0.8–1.1 × rated supply voltage.
• Operating frequency: 50/60Hz.
• Voltage measurement: Phase-to-phase and phase-to-neutral.
• Phase-to-phase measurement range: 10–500V AC.
• Phase-to-neutral measurement: 176–242V AC for the listed 220/230V supply version.
• Measurement accuracy: ±1% ±1 digit.
• Display: Three-digit LED.
• Protection functions: Phase failure, phase sequence, overfrequency, and underfrequency.
• Voltage imbalance adjustment: Approximately 5–20%.
• Listed protection thresholds for the 380V version: Overvoltage 390V / 460V; undervoltage 300V / 370V.
• ON delay: Approximately 0.1–99.9 seconds, depending on version.
• Relay contact rating: Maximum 5A at 240V AC; power consumption: Less than 4VA.
• Operating temperature: -5°C to +50°C; protection class: IP20.
• Mounting: Electrical panel connection rail with terminal connections; dimensions: Approximately 90 × 58 × 35mm, depending on version.

Uses:

• Three-phase industrial motors and machinery.
• Industrial and commercial water pump systems.
• Three-phase air compressors and HVAC equipment.
• Electrical distribution panels, control panels, and factory automation systems.
• Generator supply voltage, phase sequence, voltage balance, and frequency monitoring.

Package includes:

1x KAEL ke-FKR4(D) Digital Monitoring Device

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