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ABB 2CSG251151R4051 Network Analyzer  

1. Key Parameters

• Product Model: 2CSG251151R4051
• Product Series: ABB Industrial Network Analyzers (Entry-Level LV Power Quality & Energy Monitoring)
• Core Function: Measures LV electrical network parameters (voltage, current, power, frequency); analyzes basic power quality (harmonics, unbalance); monitors energy consumption (import/export); detects voltage sags/swells; stores short-term historical data; integrates with basic automation systems via Modbus; supports compliance with entry-level power quality standards
• Measurement & Accuracy Specifications:

  Parameter	Details	Performance Metrics
  Electrical Parameter Range	- Voltage: 100V~400V AC (3-phase, line-line/line-neutral); single-phase compatible (230V AC) - Current: 0.1A~1000A AC (via external CT: 5A/1A secondary) - Power (Active/Reactive/Apparent): 0.1W~20MW - Frequency: 45Hz~65Hz (0.01Hz resolution) - Power Factor (PF): -1.0~+1.0 (0.001 resolution)	Tailored for LV systems (common in commercial/residential/light industrial settings); single-phase compatibility supports small-scale applications (e.g., residential complexes)
  Accuracy Class	- Voltage/Current: 0.5 class (IEC 61000-4-30) - Active Power: 1.0 class (IEC 62053-21, suitable for basic energy tracking) - Reactive Power: 2.0 class - Frequency: ±0.02Hz - Harmonics (up to 21st order): ±1.0% of fundamental	Balanced accuracy for entry-level needs—avoids overengineering while ensuring reliable detection of common power quality issues (e.g., >5% THD)
  Power Quality Analysis	- Harmonics: Up to 21st order (voltage/current); THD calculation (0.1% resolution) - Voltage Unbalance: 0.1%~100% (positive/negative sequence) - Transients: Detection of sags (≥15% voltage drop) and swells (≥15% voltage rise) - Energy Measurement: kWh (active), kVArh (reactive); basic time-of-use (TOU) logging (peak/off-peak)	Focuses on high-impact, common power issues (e.g., unbalance causing motor wear, sags triggering appliance trips) without complex, rarely used features

• Data Storage & Communication Specifications:

  Parameter	Details	Performance Metrics
  Data Storage	- Internal Memory: 2GB Flash (stores up to 2 years of 30-minute interval data) - Sampling Rate: 200Hz (transient capture); 2Hz (steady-state logging) - Data Logging: Configurable intervals (1min~24h); event-triggered (e.g., sag detection) - Data Format: CSV, basic text logs (no COMTRADE)	2GB storage meets short-to-medium-term tracking needs (e.g., monthly energy reports); simplified data formats enable easy analysis via Excel
  Communication Protocols	- Built-in: Modbus RTU (RS-485); optional: Modbus TCP (via USB-to-Ethernet adapter) - Interfaces: 1× RS-485 (half-duplex), 1× USB (for local data download/configuration) - Remote Access: Basic web interface (via optional Modbus TCP)	Modbus compatibility integrates with most basic PLCs/HMI (e.g., ABB CP600 HMI); USB port enables local data download without network access

• Mechanical & Environmental Specifications:

  Parameter	Details	Performance Metrics
  Mechanical Design	- Dimensions: 72mm (W) × 72mm (H) × 120mm (D) (panel mount, 3-inch standard) - Enclosure: IP40 (front panel); IP20 (internal) - Display: 1.8-inch monochrome LCD (backlit, basic parameter readout) - User Input: 3 tactile buttons (menu, select, reset) - Weight: Approximately 250g	Ultra-compact 3-inch size fits in small electrical enclosures (e.g., residential distribution boards, workshop utility panels); simple button interface reduces operation complexity
  Environmental Ratings	- Operating Temperature Range: 0℃~+55℃ (32℉~131℉) - Storage Temperature Range: -20℃~+70℃ (-4℉~158℉) - Humidity Tolerance: 10%~90% RH (non-condensing, 40℃) - Vibration Resistance: 10~500Hz, 0.3g acceleration (IEC 60068-2-6) - EMC Compliance: EN 61000-6-2 (immunity: Level 2); EN 61000-6-3 (emission: Class B)	Temperature range suits indoor environments (e.g., building basements, workshop offices); Level 2 EMC immunity resists interference from household/commercial equipment (e.g., microwaves, small motors)

• Compliance Standards: CE, UL 61010-1, IEC 61000-4-30 (entry-level), IEC 62053-21 (basic energy metering), RoHS, ISO 9001 |

2. Core Features

• LV-Specific Optimization: 100V~400V AC range and single-phase compatibility—perfect for low-voltage environments (e.g., 230V residential, 400V small workshops) where high-voltage meters are unnecessary, reducing cost and complexity.
• Balanced Functionality: Focuses on essential metrics (up to 21st harmonics, sags/swells, basic energy tracking)—avoids overcomplicating operation with rare-use features, making it ideal for users without advanced power quality expertise.
• Ultra-Compact Design: 72×72mm 3-inch panel-mount size—fits in space-constrained enclosures (e.g., residential distribution boards, small industrial MCCs) where larger analyzers cannot be installed.
• Easy Operation & Data Access: 1.8-inch backlit LCD, 3-button interface, and USB data download—enables quick parameter checks (e.g., real-time current/power) and local data export (via USB flash drive) without specialized software, simplifying use for maintenance staff.
• Cost-Effective Energy Tracking: 1.0-class active power accuracy—supports basic energy monitoring (e.g., monthly consumption for small factories, tenant billing in apartment buildings) at a lower cost than high-end analyzers.
• Basic Automation Integration: Built-in Modbus RTU—connects to entry-level PLCs/HMIs (e.g., ABB AC500-eCo, Siemens S7-1200) for centralized monitoring, eliminating the need for manual data logging in small-scale systems.
• Indoor Durability: IP40 front panel and 0℃~+55℃ operating range—withstands typical indoor conditions (e.g., building utility rooms, workshop offices) without performance degradation, ensuring long-term reliability.

3. Application Fields

• Residential & Multi-Tenant Complexes: Energy Billing & Basic Power Monitoring:
  • Apartment Buildings: Tracks energy consumption for individual units (via CTs on each tenant’s supply)—1.0-class accuracy supports fair billing; detects voltage sags that cause appliance damage (e.g., refrigerators, washing machines), helping property managers resolve grid issues.
  • Gated Communities: Monitors communal electrical systems (e.g., street lighting, water pumps)—Modbus RTU connects to a basic HMI for guardhouse monitoring; tracks peak demand to optimize utility contract costs.
• Small Industrial Workshops: Light-Duty Power Management:
  • Machine Shops: Monitors power for small 3-phase equipment (e.g., 2kW lathes, 1.5kW drills)—detects voltage unbalance that shortens motor life; tracks active power to identify inefficient equipment (e.g., old compressors with high reactive power).
  • Garment Factories: Tracks energy consumption for sewing machines and HVAC—basic TOU logging helps shift operation to off-peak hours (reducing utility costs); detects harmonics from LED lighting that interfere with sewing machine controls.
• Commercial Small Businesses: Retail & Office Energy Monitoring:
  • Small Retail Stores (e.g., convenience stores): Monitors power for refrigerators, lighting, and POS systems—detects voltage sags that crash POS terminals; tracks daily energy consumption to identify waste (e.g., overcooling during closed hours).
  • Small Offices: Tracks energy for HVAC, computers, and printers—USB data download enables monthly consumption reports; Modbus RTU connects to a basic BMS (e.g., ABB i-bus) for automated HVAC adjustment based on occupancy.
• Auxiliary Utility Systems: Low-Power Grid Monitoring:
  • Utility LV Feeders: Monitors power flow in residential/commercial LV feeders—detects voltage sags/swells caused by grid faults; tracks load distribution to identify overloaded feeders (e.g., during peak hours) and plan upgrades.
  • Small Water Pumps: Monitors power for 230V/400V residential/commercial water pumps—detects current spikes indicating pump jams (e.g., from debris); tracks runtime for maintenance scheduling (e.g., replacing seals after 1000 hours of operation).

The structure and details of the product：

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