Description
PowerZook – Rack-Input Power Sensor
Key Features
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Non-invasive power sensor that clips around live single-phase 3-core cables (up to 32 A) without downtime.
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Provides power usage data (current, indicative watts) via web-browser interface or SNMP v1/v3.
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PoE powered (IEEE 802.3af) for easy integration into network/infrastructure monitoring.
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Ideal for legacy rack installations, PDUs or power feeds where replacement isn’t viable — delivers visibility down to rack level.
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Compact and maintenance-free once installed.
Technical Specifications
| Parameter | Specification |
|---|---|
| Maximum Cable Current | Up to 32 A single-phase 3-core cable |
| Cable Diameter Supported | Up to approx. 13.6 mm diameter |
| Power Supply | PoE (IEEE 802.3af) |
| Protocols Supported | SNMP v1/v3, HTTP, UDP/TCP |
| Form Factor | Clip-on sensor around cable, minimal footprint |
Why Choose PowerZook?
If you’re looking to monitor rack power consumption without disrupting your system, PowerZook offers a smart alternative to replacing PDUs or adding inline meters. It clips around your existing feed cable, integrates easily into your network monitoring system, and gives you real-time visibility of rack-level power usage — helping with capacity planning, energy efficiency, fault detection and compliance (e.g., ISO50001).
Applications & Use-Cases
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Data-centre racks or office server rooms where you need to monitor power draw without shutting down equipment.
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Legacy infrastructure where intelligent PDUs are not viable or too costly.
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Environments where remote monitoring (via SNMP/Web UI) of power, overloads, unusual usage patterns or cable faults is required.
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Supporting energy-efficiency initiatives or reporting (e.g., ESOS) by capturing accurate rack-level power data.
Ordering & Custom Options
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Standard model monitors single-phase 3-core up to 32 A.
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For special cable diameters, 3-phase feeds, or additional integration features, please contact us for a tailored solution.
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Easy to install: clip-on, connect via PoE, calibrate via web UI and integrate with NMS.
Installation & Compatibility Notes
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Ensure the feed cable you wish to monitor is within the spec (single-phase, 3-core, up to 32 A, and within supported diameter).
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Sensor must be installed onto live cable while equipment remains powered — but follow safe installation practices.
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Connect to PoE (or use PoE injector) to power the sensor, then configure via browser or network.
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Integrate output into your SNMP/NMS or data-logging system to capture and analyse power consumption data over time.
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Use the data to identify under-/over-utilised racks, potential overloads, or inefficiencies.









