Lykalyte
Shelly Pro 3EM 3CT 63
Shelly Pro 3EM 3CT 63
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Typically used for:
- Whole-Home Three-Phase Energy Monitoring
- Solar Generation & Net-Metering Metrics
- Commercial & Industrial Sub-Panel Auditing
- EV Charging Station Load Management
Bring enterprise-grade power analysis directly to your switchboard with the Shelly Pro 3EM-3CT63. This professional, DIN-rail mountable energy meter is engineered to monitor either single-phase systems across three distinct circuits or full three-phase electrical infrastructures. Supplied alongside a specialized, ultra-compact combined 3-phase 63A current transformer block, it slides directly over adjacent standard circuit breakers, saving massive amounts of footprint within cramped switchboard enclosures.
Equipped with native LAN, Wi-Fi, and Bluetooth connectivity, the device ensures maximum communication reliability by routing telemetry locally over Ethernet or wirelessly. With built-in memory storage, real-time clock tracking, and native industrial protocol compatibility, it functions as an autonomous electrical auditing system for modern power infrastructure.
Key Features:
- Space-Saving 3-in-1 Transformer: Includes the Shelly 3CT63, a combined 3-phase clamp block engineered to slide directly over standard circuit breaker spacing.
- Industrial LAN Connectivity: Features an integrated RJ45 Ethernet terminal for dense electrical enclosures requiring high-security, interference-free local networking.
- 4-Quadrant High-Accuracy Metering: Delivers Class B (IEC 62053-21) 1% accuracy tracking across both capacitive and inductive loads, calculating imported, exported, active, and apparent energy fields.
- 60-Day Autonomous Data Logging: Stores up to 60 days of rolling 1-minute interval energy telemetry locally inside non-volatile memory, accessible even during complete network drops.
- Advanced Automation & Modbus: Supports custom mJS scripting, local webhooks, MQTT, and native Modbus TCP for smooth integration into Building Management Systems (BMS).
Specifications
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Physical & Installation |
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Meter size (HxWxD): |
94x19x69 mm |
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CT bank size (HxWxD): |
14x54x26 mm |
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Meter weight: |
62 g |
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CT bank weight: |
32 g |
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Mounting profile: |
Meter: DIN Rail | CT Clamps: Freestanding on phase lines |
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CT aperture diameter: |
Ø9 mm (Max wire insulation diameter: 6 mm) |
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Conductor cross section: |
Meter: 0.5 to 2.5 mm² | CT Terminal Block: 0.2 to 2.5 mm² |
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Shell color: |
White |
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Environmental |
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Ambient working temperature: |
-20 °C to 40 °C |
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Humidity: |
30 % to 70 % RH |
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Electrical Ratings |
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Power supply voltage AC: |
100 - 260 V~, 50/60 Hz |
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Power consumption: |
< 3 W |
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Measurement elements: |
3 channels via included 3CT63 current transformer bank |
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CT insulation strength: |
1000 V~, 60 seconds |
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Telemetry & Sensors |
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Voltmeter range (AC RMS): |
100 - 260 V (Accuracy: ±1 %) |
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Ammeter range (AC RMS): |
0 - 63 A per phase (Accuracy: ±1% from 2-63A; ±2% from 1-2A; ±5% from 0-1A) |
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Calculated metrics: |
Active/Apparent Power, Active/Apparent Energy, Power Factor, Fundamental Active/Reactive Energy |
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Internal-temperature sensor: |
Yes |
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Radio & Connectivity |
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Ethernet port: |
1 x RJ45 (10/100 Mbps) |
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Wi-Fi protocol: |
802.11 b/g/n (2.4 GHz) |
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Bluetooth protocol: |
4.2 |
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Supported integration protocols: |
Modbus TCP, MQTT, RPC, Webhooks (20 hooks, 5 URLs per hook) |
*NOTICE! This monitoring device is designed strictly for energy calculation and does not contain an internal dry-contact switching relay. Physical contactor load management requires the addition of the Shelly Pro 3EM Switch Add-on module.
Australia and New Zealand Safety Standard (AS/NZS) compliant. SDoCs are available upon request for declared articles sold by Lykalyte. Some components and non-declared products may not require SDoCs under NZ regulations.
Shelly Smart Control App Google Play
Shelly Smart Control App Apple
