MTL 4220 Earth Leakage Detector
MTL MTL4220 Earth Leakage Detector is an isolating safety barrier designed to detect earth leakage (ground fault) conditions in industrial electrical systems. It provides galvanic isolation between hazardous and safe areas, continuously monitors leakage currents, and delivers reliable fault indication to help protect equipment and maintain safe, uninterrupted process operation
BRAND
MTL (Measurement Technology Ltd.)
TYPE
Earth Leakage Detector (Isolating Safety Barrier)
PART NO.
MTL4220
MODEL
MTL4220
Full Technical Specifications ▶
| Parameter | Value / Description |
|---|---|
| BRAND | MTL (Measurement Technology Ltd.) |
| TYPE | Earth Leakage Detector (Isolating Safety Barrier) |
| PART NO. | MTL4220 |
| MODEL | MTL4220 |
| Voltage Rating | Supply Voltage (\(V_{s}\)): 20–35V DC | Max Safety Voltage (\(U_{m}\)): 250V |
| Application | Monitoring earth insulation faults in intrinsically safe signal loops on hazardous process lines |
| IEC / Explosion Cert. | IIC ATEX BASEEFA No. Ex89C2248 |
| Operating Logic | The internal contact status diagram confirms that the device is shown in an unwary condition (relay de-energized) state during basic testing profiles |
| Environmental Limit | maximum ambient working temperature of 60°C |
| System Integration | Connects dynamically with adjacent MTL4000 series isolation modules through structured multi-pin backplane tracks, continuously sniffing field lines for phase-to-ground insulation breakdown |
| Visual Testing Function | The faceplate circuit diagram highlights an integrated Test Loop path designed to manually simulate earth fault monitoring anomalies during control panel validation checks |
| Made In | England (UK) |
| REF NO | 454 |
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