RS PRO Digital Energy Meter, Type Energy Meter
RS Stock No. 178-5373
Brand RS Pro
- Category: Energy Meters
- Display Type: Digital
AED 170.27
in stock now
RS PRO Digital Energy Meter, Type Digital
RS Stock No. 178-5370
Brand RS Pro
- Category: Energy Meters
- Display Type: Digital
AED 166.39
in stock now
RS PRO 3 Phase Digital Energy Meter, Type Digital
RS Stock No. 179-7572
Brand RS Pro
- Cutout Height: 90mm
- Digit Height: 10 mm
- Meter Accuracy: Class 1.0
AED 495.69
in stock now
RS PRO 3 Phase LED Energy Meter, Type Digital
RS Stock No. 179-7577
Brand RS Pro
- Category: Energy Meters
- Digit Height: 10 mm
- Measurement Range: 50 mA - 6A
AED 2.009.27
in stock now
RS PRO 3 Phase LED Energy Meter, Type Digital
RS Stock No. 179-7579
Brand RS Pro
- Depth: 55mm
- Digit Height: 10 mm
- Minimum Temperature: -10°C
AED 2.248.18
in stock now
RS PRO Alpha 20 LED Digital Panel Multifunction Meter for Frequency, AC Voltage, Energy, Power, AC Current, Active, 92
RS Stock No. 136-5383
Brand RS Pro
- Minimum Temperature: -20°C
- Number Of Digits: 4
- Properties Measured: AC Current, AC Voltage, Active, Apparent Power, Frequency, Import Export Energy, Reactive
AED 544.06
in stock now
RS PRO Alpha 20 LED Digital Panel Multifunction Meter for Active, AC Current, Frequency, Power, AC Voltage, Energy, 92
RS Stock No. 136-5384
Brand RS Pro
- Category: Multi Function Panel Meters
- Measurement Range: 0.5 (Lag Power Factor), 0.5 (Lead Power Factor), 1 (Normal Power Factor), 1 → 5 (Current) A, 290 (Phase → Neutral) V ac, 45 → 65 (Frequency) Hz, 500 (Line → Line) V ac
- Meter Type: Digital
AED 590.68
in stock now
RS PRO 3 Phase LED Energy Meter, Type Digital
RS Stock No. 179-7578
Brand RS Pro
- Depth: 55mm
- Measurement Range: 50 mA - 6A
- Meter Type: Digital
AED 660.00
in stock now
RS PRO 1 Phase LCD Energy Meter, Type Energy Meter
RS Stock No. 055-7782
Brand RS Pro
- Category: Energy Meters
- Category Link: https://ae.rsdelivers.com/browse/electrical-automation-cables/automation-control-gear/process-control/energy-meters
- Display Type: LCD
AED 264.30
in stock now
RS PRO 3 Phase LCD Backlight Energy Meter, Type Energy Meter
RS Stock No. 236-9296
Brand RS Pro
- Number Of Digits: 7
- Number of Phases: 3
- Pulse Output: Yes
AED 808.64
in stock now
RS PRO 1 Phase LCD Backlight Energy Meter, Type Energy Meter
RS Stock No. 236-9298
Brand RS Pro
- Category: Energy Meters
- Display Type: Backlit LCD
- Series: AP25
AED 379.01
in stock now
RS PRO 1 Phase LCD Backlight Energy Meter, Type Energy Meter
RS Stock No. 236-9293
Brand RS Pro
- Display Type: LCD Backlit
- Number Of Digits: 7
- Number of Phases: 1
AED 412.72
in stock now
RS PRO 3 Phase LCD Backlight Energy Meter, Type Energy Meter
RS Stock No. 236-9295
Brand RS Pro
- Category: Energy Meters
- Meter Type: Energy Meter
- Number Of Digits: 8
AED 1.086.54
in stock now
RS PRO 3 Phase LCD Backlight Energy Meter, Type Energy Meter
RS Stock No. 236-9299
Brand RS Pro
- Cutout Height: 92mm
- Cutout Width: 92mm
- Meter Type: Energy Meter
AED 1.221.30
in stock now
RS PRO 3 Phase LCD Backlight Energy Meter, Type Energy Meter
RS Stock No. 236-9297
Brand RS Pro
- Meter Type: Energy Meter
- Number of Phases: 3
- Series: AP25
AED 1.103.44
in stock now
RS PRO LCD Energy Meter
RS Stock No. 178-5376
Brand RS Pro
- Category: Energy Meters
- Display Type: Digital
AED 170.94
in stock now
Socomec Digital Energy Meter, Type Energy Meter
RS Stock No. 221-0398
Brand Socomec
- Category Link: https://ae.rsdelivers.com/browse/electrical-automation-cables/automation-control-gear/process-control/energy-meters
- Series: DIRIS Digiware
- Standards/Approvals: IEC, UL
AED 3.998.59
in stock now
Phoenix Contact 3 Phase Digital Energy Meter, Type Energy Meter
RS Stock No. 220-5793
Brand Phoenix Contact
- Category: Energy Meters
- Meter Type: Energy Meter
- Section: Automation & Control Gear
AED 2.394.85
in stock now
Phoenix Contact 3 Phase Digital Energy Meter, Type Energy Meter
RS Stock No. 220-5796
Brand Phoenix Contact
- Category Link: https://ae.rsdelivers.com/browse/electrical-automation-cables/automation-control-gear/process-control/energy-meters
- Display Type: Digital
- Number of Inputs: 1
AED 2.331.37
in stock now
Phoenix Contact 3 Phase Digital Energy Meter, Type Energy Meter
RS Stock No. 220-5798
Brand Phoenix Contact
- Category: Energy Meters
- Depth: 64mm
- Digit Height: 85mm
AED 2.023.82
in stock now
Phoenix Contact 3 Phase Digital Energy Meter, Type Energy Meter
RS Stock No. 220-5797
Brand Phoenix Contact
- Number of Outputs: 1
- Product Type: Energy Meter
- Super Section: Process Control
AED 2.454.79
in stock now
Socomec 3 Phase Digital Energy Meter, Type Energy Meter
RS Stock No. 221-0394
Brand Socomec
- Digit Height: 85mm
- Maximum Operating Temperature: 70°C
- Series: DIRIS O-iod
AED 1.039.35
in stock now
Socomec 3 Phase Digital Energy Meter, Type Energy Meter
RS Stock No. 221-0396
Brand Socomec
- Depth: 65mm
- Digit Height: 85mm
- Number of Inputs: 2
AED 1.442.74
in stock now
Socomec 3 Phase Digital Energy Meter, Type Energy Meter
RS Stock No. 221-0395
Brand Socomec
- Cutout Height: 90mm
- Number of Outputs: 2
- Product Type: Energy Meter
AED 1.272.31
in stock now
...
What is a digital energy meter?
- kWh metering for precise billing and tariff metering
- Voltage, current, power, energy, and power factor measurements
- Data logging and export for energy reporting and sustainability programs
- Communications options such as RS485 Modbus, Modbus TCP, M‑Bus, Ethernet, and optional Wi‑Fi
What are the main types of digital energy meters?
- Single‑phase direct‑connect meters: compact meters designed for low to moderate current (often up to 100 A) that connect directly to the circuit without external current transformers.
- Single‑phase CT or split‑core CT meters: suitable for higher currents or retrofits where direct connection is not possible.
- Three‑phase four‑wire meters: measure voltage, current, and energy for three‑phase systems with neutral, common in commercial and industrial settings.
- Three‑phase three‑wire meters: used for certain 3‑phase configurations with limited neutral connections.
- Bidirectional and tariff meters: capable of tracking export/import energy for renewable generation and dynamic tariffs.
- DIN rail mounted vs panel mounted: DIN rail meters are common in electrical cabinets; panel‑mount meters suit larger enclosures or dedicated panels.
What features should I look for when buying a digital energy meter?
- Accuracy class: common classes include 0.5s, 1.0, or higher. Higher accuracy is important for precise billing and load profiling.
- Measurement channels and ranges: number of voltage/current inputs, ability to measure active/reactive energy, and phase‑level details for 3‑phase systems.
- Power measurement: real power (kW), apparent power (kVA), reactive power (kVAr), and power factor.
- Energy measurement: total active energy (kWh), reactive energy (kVArh), and time‑based energy reporting (daily, monthly totals).
- Reporting and data logging: internal memory size, logging intervals, and export formats (CSV, XML) for energy dashboards and billing systems.
- Communications: RS485 (Modbus RTU), Modbus TCP/IP, M‑Bus, Ethernet, Wi‑Fi, or Bluetooth for integration with SCADA, BMS, or data historians.
- Display and user interface: clear LCD or LED readouts, on‑device display, and remote access for quick checks.
- Mounting and enclosure: DIN rail compatibility, IP rating (for harsh environments), and temperature range appropriate to the installation.
- Safety and approvals: compliance with IEC standards (IEC 62053, IEC 61010), electrical safety, and grid connection requirements.
- Compatibility with tariffs and submetering: support for tariff metering, export/import energy tracking, and submetering capabilities for zones or equipment.
- Expansion and integration: ability to scale with additional meters, and easy integration into building management systems (BMS) or energy management software.
How does a digital energy meter work?
- The meter measures instantaneous voltage (V) and current (A) from one or more phases.
- By applying mathematical operations, it computes real power (P = V × I × cosφ) and reactive power (Q), then derives apparent power (S) and power factor (cosφ).
- Active energy (kWh) and reactive energy (kVArh) are accumulated by integrating power over time, with the meter maintaining daily, monthly, and total tallies.
- Direct‑connect meters sense current directly up to a specific limit, while CT (current transformer) meters use external CTs to measure higher currents without passing through the meter’s internal shunt.
- Digital meters store data in internal memory and often export readings via serial or Ethernet interfaces for energy dashboards, tariff analysis, and submetering reports.
How do I install and interpret a digital energy meter safely?
- Power down the panel and verify isolation before connecting meters, CTs, and wiring.
- Mount on an appropriate enclosure or DIN rail as specified; ensure correct phase wiring for 3‑phase meters.
- Connect current transformers correctly, observing polarity and CT ratios; avoid twisted or overlapping conductors that can affect accuracy.
- Verify voltage connections and ensure proper grounding; use surge protection where recommended.
- Configure communication ports (RS485, Modbus TCP, M‑Bus, Ethernet) and set address or IP parameters for remote monitoring.
- Perform safety checks, confirm readings against a known reference source if available, and document firmware versions and calibration status.
What industries and applications are best suited for digital energy meters?
- Residential and multi‑family buildings for submetering and tariff optimization
- Commercial offices, retail, and hospitality for demand management and energy budgeting
- Industrial facilities and manufacturing floors for power quality monitoring, process control, and energy analytics
- Data centers and server rooms for granular power monitoring, PUE improvements, and DCIM integration
- Solar, wind, and other distributed generation projects requiring export/import metering and tariff reconciliation
How should I read and interpret the data from a digital energy meter?
- Real‑time values: voltage, current, active power (kW), reactive power (kVAr), and power factor indicate current operating conditions.
- Energy totals: cumulative active energy (kWh) and reactive energy (kVArh) show consumption over time and are used for billing or tariff analysis.
- Phase and channel details: phase‑by‑phase readings in 3‑phase systems enable imbalance detection and targeted improvements.
- Tariff and time‑of‑use: examine energy use by time window or tariff class to optimize demand charges and running costs.
- Historical trends: data logging supports trend analysis, peak shaving, and capacity planning for facilities management.
What about communications, integration, and compatibility with building management systems?
- RS485 Modbus RTU/Modbus TCP for robust industrial connectivity and integration with SCADA and energy dashboards.
- M‑Bus for easy integration with legacy building systems and utility networks.
- Ethernet or Wi‑Fi for remote monitoring and cloud‑based energy analytics.
- Bluetooth or USB for local access and configuration during commissioning.
- Support for standard data formats (CSV, XML, JSON) to feed into submetering platforms, energy dashboards, and tariff calculation tools.
What is the difference between a digital energy meter and a power quality meter?
What should I consider regarding maintenance, calibration, and long‑term accuracy?
- Calibration intervals recommended by the manufacturer or regulatory bodies, especially for metering accuracy requirements.
- Replacement of worn components, verification of CT ratios, and inspection of wiring connections during service visits.
- Software updates to fix bugs, improve data security, and enhance communication features.
- Documenting serial numbers, firmware versions, and calibration certificates for audit readiness and customer support.