phoenix EMD Series – Monitoring and Protection Relays
The phoenix EMD Series provides advanced monitoring relays for electrical and process systems.
These devices supervise voltage, current, phase sequence, insulation, and temperature parameters, ensuring safe and efficient operation of machinery, motors, and industrial systems.
The EMD-SL (Slim Line) modules offer compact DIN-rail mounting for space-saving installation, while the EMD-BL (Basic Line) range delivers robust solutions for general applications.
1. Product Table
| Part Number | Model | Description |
|---|---|---|
| 2866035 | EMD-SL-V-UV-300 | Undervoltage monitoring relay, 300 V AC/DC, slim design. |
| 2866093 | EMD-SL-PTC | Temperature monitoring relay for PTC thermistors. |
| 2905597 | EMD-SL-PH-690 | Phase monitoring relay, up to 690 V, detects phase loss/sequence. |
| 2866077 | EMD-SL-PH-400 | Phase monitoring relay, 400 V 3-phase systems. |
| 2885906 | EMD-SL-LL-230 | Level control relay, 230 V AC, for conductive liquids. |
| 2867937 | EMD-SL-C-UC-10 | Current monitoring relay, universal supply 10 A, slim type. |
| 2866019 | EMD-SL-C-OC-10 | Overcurrent monitoring relay, 10 A rated, slim design. |
| 2885278 | EMD-SL-3V-400-N | Voltage and phase monitoring relay, 3×400 V, neutral connection. |
| 2866051 | EMD-SL-3V-400 | Voltage and phase monitoring relay, 3×400 V. |
| 2903524 | EMD-BL-V-230-PT | Voltage monitoring relay, 230 V AC, with test/reset button. |
| 2903523 | EMD-BL-V-230 | Voltage monitoring relay, 230 V AC, standard version. |
| 2906253 | EMD-BL-PTC-PT | Temperature monitoring relay for PTC sensors, with test button. |
| 2906252 | EMD-BL-PTC | Temperature monitoring relay for PTC sensors, standard version. |
| 2903528 | EMD-BL-PH-480-PT | Phase monitoring relay, 480 V AC, with manual test function. |
| 2903527 | EMD-BL-PH-480 | Phase monitoring relay, 480 V AC, standard. |
| 2903522 | EMD-BL-C-10-PT | Current monitoring relay, 10 A, with push test button. |
| 2903521 | EMD-BL-C-10 | Current monitoring relay, 10 A, standard version. |
| 2903526 | EMD-BL-3V-400-PT | 3-phase voltage monitoring relay, 3×400 V, with test/reset. |
| 2903525 | EMD-BL-3V-400 | 3-phase voltage monitoring relay, 3×400 V, standard version. |
2. Technical Overview
| Feature | Specification |
|---|---|
| Series | EMD-SL (Slim Line), EMD-BL (Basic Line) |
| Functions | Voltage, current, phase, temperature, level monitoring |
| Mounting | DIN rail (35 mm) |
| Input Voltage Range | Up to 690 V (AC/DC depending on model) |
| Output | 1 or 2 changeover relays |
| Housing Width | 6.2 mm (SL) / 22.5 mm (BL) |
| Indication | LED for operating and fault states |
| Applications | Motor protection, system supervision, automation safety |
3. Features
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Universal AC/DC supply voltage options
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Compact 6.2 mm to 22.5 mm housing widths for optimized panel space
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LED indication for fault and operation status
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Models with manual test and reset function
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Reliable monitoring for voltage, current, phase sequence, or PTC sensors
4. Applications
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Industrial motor protection systems
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Control panel monitoring and automation safety
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Phase sequence and voltage fault detection
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Process and temperature control in automation lines
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Level control in tanks and reservoirs
phoenix EMD Series – Monitoring and Protection Relays
