Description
The SAGEMCOM 252721117AC is a next-generation DIN-rail power quality analyzer and energy meter engineered for mission-critical industrial and utility applications. Combining MID Class B billing accuracy with IEC 62586-2 Class A power quality monitoring, the SAGEMCOM 252721117AC delivers unparalleled visibility into electrical network performance. Its dual-processor architecture simultaneously handles revenue-grade metering and captures complex disturbances like sub-cycle transients with 256-sample/cycle waveform recording. The “AC” suffix signifies enhanced cybersecurity (IEC 62443-4-2 compliance) and industrial hardening for extreme environments, making the SAGEMCOM 252721117AC essential for smart grids, semiconductor manufacturing, and critical infrastructure protection.

SAGEMCOM 252721117AC
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | 252721117AC |
| Manufacturer | Sagemcom Energy & Telecom |
| Product Type | Power Quality Analyzer & Energy Meter |
| Voltage Input | 3×230/400V AC ±20% (direct) |
| Current Input | 1(120)A via CTs / 5(120)A direct |
| Accuracy Class | MID Class B (active energy) |
| PQ Standards | IEC 61000-4-30 Class A, IEC 62586-2 |
| Communication | Modbus TCP (2× Ethernet), M-Bus, USB 2.0 |
| Waveform Capture | 256 samples/cycle (128 cycles/event) |
| Harmonic Analysis | Up to 127th order (THD, TDD) |
| Surge Immunity | 12 kV (IEC 61000-4-5) |
| Operating Temperature | -40°C to +85°C |
| Data Storage | 32GB internal (10+ years profile data) |
| Certifications | MID MI-003, IEC 62443-4-2, DNV GL |
| Dimensions (W×H×D) | 108 × 90 × 75 mm |
| Ingress Protection | IP51 (front panel) |
Main Features and Advantages
Grid Intelligence Core: Executes 37 power quality parameters in real-time, including rapid voltage changes (RVCs) and mains signaling voltage. Detects phase imbalance below 0.5% with time-synchronized measurements (±1 μs via IRIG-B).
Cybersecurity Architecture: Hardware-based secure boot and encrypted communications (TLS 1.3) protect against firmware tampering. Role-based access control limits configuration changes to authorized personnel. The SAGEMCOM 252721117AC generates automated NERC CIP compliance reports for utility deployments.
Industrial Resilience: Stainless steel enclosure withstands 97% humidity and salt mist (ISO 9227). Dual isolated Ethernet ports support ring topology redundancy (MRP protocol). -40°C cold-start capability ensures reliability in Arctic energy projects.
Application Field
The SAGEMCOM 252721117AC safeguards semiconductor fabrication tools by capturing nanosecond-scale voltage dips affecting EUV lithography. Utility substations deploy it for IEEE 1159 disturbance monitoring, with GPS time-sync correlating events across grids. In data centers, it validates UPS performance during generator transfers using transient waveform analysis.
Oil & gas platforms leverage its DNV GL certification for switchgear monitoring in hazardous areas. The SAGEMCOM 252721117AC also enables predictive maintenance in metro rail traction substations by analyzing harmonic resonance patterns.
Related Products
SAGEMCOM 252721118AD: Fiber-optic Ethernet variant
SAGEMCOM 252721013AF: Base PQ analyzer without cybersecurity
SAGEMCOM 252730800: Class 0.2S CT set (2000:5A)
SAGEMCOM 252731100: GPS time synchronization module
SAGEMCOM 252731050: Surge protection kit for Ethernet ports
SAGEMCOM 252721200: Portable power quality recorder

SAGEMCOM 252721117AC
Installation and Maintenance
Pre-installation preparation: Verify ground continuity (resistance <1>



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