Why Choose the Finder 7E.86.8.400.0112 Three-Phase Energy Meter?
The Finder 7E.86.8.400.0112 is a professional three-phase, multifunction, bi-directional energy meter designed for accurate electricity consumption monitoring in industrial, commercial and building automation installations. Part of the Finder 7E Series, this MID-certified digital electricity meter combines current transformer-operated measurement, dual-tariff energy recording, an integrated infrared communication interface and two programmable S0 pulse outputs in a compact DIN rail-mounted housing.
Designed for three-phase three-wire and four-wire electrical systems, the Finder 7E.86.8.400.0112 operates with a nominal voltage of 3 × 230/400 V AC at 50/60 Hz. Its current measurement system has a 1 A reference current and 6 A maximum input, with a programmable current transformer secondary setting of 1 A or 5 A. This allows the meter to monitor high-current installations through correctly selected external current transformers rather than carrying the main load current directly through the meter.
The meter supports bi-directional active and reactive energy measurement, enabling users to monitor both imported and exported electrical energy. Its dual-tariff functionality provides separate energy registers for two tariff periods, while the backlit LCD display offers local access to consumption totals and important electrical parameters. With MID Class B active energy accuracy, two programmable S0 outputs and an infrared communication interface for compatible external modules, the Finder 7E.86.8.400.0112 is a versatile solution for electrical engineers, energy managers and industrial control panel builders.
Key Advantages
- MID-certified electricity measurement for applications requiring a certified energy meter, subject to applicable metering regulations.
- Class B active energy accuracy according to EN 50470-3.
- Bi-directional energy monitoring records imported and exported electrical energy.
- Dual-tariff operation enables separate consumption recording across two tariff periods.
- External current transformer measurement supports high-current installations without direct load-current wiring through the meter.
- Programmable 1 A or 5 A CT secondary setting provides flexibility when selecting current transformers.
- Current transformer ratios up to 10,000:1 support a broad range of industrial measurement applications.
- Integrated infrared communication interface supports data transmission using compatible external communication modules.
- Two programmable S0 pulse outputs allow integration with compatible pulse counters and energy monitoring systems.
- Three-phase three-wire and four-wire compatibility provides flexibility across different electrical distribution arrangements.
- Backlit eight-digit LCD display makes energy readings and electrical parameters easy to access.
- Multifunction measurement includes voltage, current, active power, reactive power, apparent power, frequency and power factor.
- Phase failure and phase sequence error indication assists with installation checks and troubleshooting.
- Resettable partial energy counters support monitoring of individual operating periods.
- Compact DIN rail mounting enables straightforward integration into electrical distribution boards.
- Class II electrical protection supports installation in appropriately designed electrical enclosures.
Key Features
- Finder 7E Series multifunction energy meter.
- Type 7E.86 current transformer-operated three-phase meter.
- Bi-directional active and reactive energy measurement.
- MID-certified active energy metering.
- Accuracy Class B according to EN 50470-3.
- Reactive energy accuracy Class 2 according to EN 62053-23.
- 1 A reference current and 6 A maximum measuring input.
- Programmable current transformer secondary setting: 1 A or 5 A.
- External CT ratio configuration: 1:1 to 10,000:1.
- Nominal supply: 3 × 230/400 V AC, 50/60 Hz.
- Three-phase three-wire and four-wire operation.
- Dual-tariff measurement.
- Integrated infrared communication port.
- Two programmable S0 pulse outputs.
- Pulse output compatibility with EN 62053-31.
- Backlit eight-digit LCD display.
- Active, reactive and apparent energy recording.
- Total and resettable partial energy counters.
- Instantaneous voltage, current and power measurements.
- Frequency and power factor indication.
- Energy flow direction indication.
- Phase failure and incorrect phase sequence indication.
- Class II protection.
- 35 mm DIN rail mounting according to EN 60715.
- Sealable terminal cover accessory for metering installation security.
Technical Specifications
- Manufacturer: Finder
- Series: 7E Series
- Model: 7E.86.8.400.0112
- Product type: Multifunction three-phase energy meter
- Meter construction: Electronic, current transformer-operated
- Measurement direction: Bi-directional, import and export
- Number of phases: Three-phase
- Supported wiring systems: Three-phase three-wire and three-phase four-wire
- Supported CT wiring arrangements: Three-phase four-wire with three CTs; three-phase three-wire with two or three CTs, as specified in the manufacturer's wiring diagrams
- Nominal voltage: 3 × 230/400 V AC
- Rated frequency: 50/60 Hz
- Reference current: 1 A
- Maximum measuring current: 6 A
- Current measurement method: External current transformers
- Programmable CT secondary current: 1 A or 5 A
- Minimum current transformer ratio: 1:1
- Maximum current transformer ratio: 10,000:1
- Maximum measurable primary current: Dependent on CT selection and ratio configuration; Finder specifies applications up to 50,000 A using suitable CTs
- Active energy accuracy: Class B according to EN 50470-3
- Reactive energy accuracy: Class 2 according to EN 62053-23
- MID certification: Yes
- Tariff functionality: Two tariffs
- Energy measurement: Active, reactive and apparent energy
- Energy flow measurement: Imported and exported energy
- Energy registers: Total and partial counters
- Partial counter reset: Supported
- Communication interface: Infrared communication port
- External communication modules: Compatible modules may be used for remote data transmission
- Pulse outputs: 2 × S0
- Pulse output configuration: Programmable
- Pulse output standard: EN 62053-31
- Display type: Backlit LCD
- Display resolution: Eight-digit energy display
- Instantaneous measurements: Voltage, current, active power, reactive power, apparent power, frequency and power factor
- Additional indications: Energy flow direction, phase failure and phase sequence error
- Electrical protection class: Class II
- Mounting type: DIN rail
- DIN rail standard: EN 60715, 35 mm
- Terminal security: Sealable terminal cover accessory
- Installation: Electrical distribution board or appropriately rated control enclosure
Accurate Three-Phase Energy Monitoring for Industrial and Commercial Installations
The Finder 7E.86.8.400.0112 provides detailed electricity consumption information for three-phase electrical systems. Unlike a basic kilowatt-hour meter, this multifunction device offers a wider range of electrical measurements, helping engineers, facilities managers and energy specialists understand how electrical power is being consumed and distributed.
The meter's bi-directional measurement capability is particularly useful in installations where electrical energy can flow in both directions. It records imported and exported energy separately, making it suitable for monitoring facilities with on-site generation, including correctly configured photovoltaic installations.
Its external current transformer arrangement is designed for industrial and commercial installations where the primary electrical current may be significantly higher than the meter's own current input rating. The meter accepts a reference current of 1 A, with a maximum measuring input of 6 A, and can be configured for CT secondary currents of 1 A or 5 A.
By using an appropriately rated current transformer, the Finder 7E.86.8.400.0112 can monitor high-current circuits without requiring the main electrical load current to pass directly through the meter. Finder specifies current transformer ratios from 1:1 to 10,000:1, with suitable CT configurations supporting primary current measurement up to 50,000 A.
Correct CT selection and configuration are essential. The selected CT ratio, secondary current, polarity and phase association must match the installation. Incorrect CT settings or reversed current transformer connections can result in inaccurate readings or incorrect import and export indications. CT secondary circuits must also be handled using appropriate safety procedures, including avoiding an open-circuit secondary while the primary conductor is energised.
Dual-Tariff Energy Recording and Detailed Electrical Measurement
The dual-tariff functionality allows electricity consumption to be recorded separately across two tariff periods. This is particularly useful where electricity charges differ according to the time of day, operating schedule or supply agreement. The tariff switching arrangement must be configured and connected according to the manufacturer's instructions.
The meter provides readings for active energy, reactive energy and apparent energy, together with total and partial energy counters. Partial counters can be reset, allowing consumption to be monitored across selected operating periods, production runs or maintenance intervals without affecting the main energy measurement registers.
Its backlit LCD display offers local access to instantaneous electrical measurements, including voltage, current, active power, reactive power, apparent power, frequency and power factor. These readings can support load analysis, commissioning checks and investigations into electrical consumption.
The meter also indicates phase failure and incorrect phase sequence. These functions can assist with identifying wiring problems or abnormal electrical conditions during commissioning and maintenance. They should be used as diagnostic information rather than as substitutes for dedicated electrical protection equipment.
Infrared Communication and Two Programmable S0 Pulse Outputs
A distinguishing feature of the Finder 7E.86.8.400.0112 is its integrated infrared communication interface. This interface enables the transfer of metering information using compatible external communication modules, providing a flexible route towards remote energy monitoring and data collection.
The meter itself is an infrared communication version. It does not have the same integrated communication interface as the Modbus RS485 or M-Bus variants in the Finder 7E.86 range. Where a particular communication protocol is required, the selected meter and any external module must be checked for compatibility with the intended energy management system.
In addition to infrared communication, the meter includes two programmable S0 pulse outputs compliant with EN 62053-31. These can be connected to compatible pulse counting devices, monitoring controllers or data acquisition equipment to support energy consumption tracking.
The pulse outputs can be configured for supported energy quantities, including kWh, kvarh and kVAh. The correct pulse constant and output configuration should be selected to match the receiving equipment and the current transformer ratio.
MID Certification, DIN Rail Installation and Metering Security
The Finder 7E.86.8.400.0112 is MID certified and provides Class B active energy accuracy according to EN 50470-3. Its reactive energy measurement is specified as Class 2 according to EN 62053-23. These characteristics make it suitable for professional energy measurement applications where dependable metering performance is required.
For electricity billing, tenant sub-metering or other legally controlled applications, the relevant national regulations and installation requirements must be checked. MID certification is an important product characteristic, but the suitability of a complete metering arrangement also depends on the selected current transformers, wiring configuration, commissioning and applicable legal requirements.
The meter is designed for installation on a standard 35 mm DIN rail according to EN 60715. This makes it suitable for integration into industrial electrical cabinets, distribution boards and commercial building energy monitoring panels.
A sealable terminal cover accessory is available to help protect the electrical connections against unauthorised access. The installation should provide appropriate electrical protection, isolation, conductor sizing and enclosure protection according to the manufacturer's documentation and applicable wiring regulations.
Typical Applications
- Industrial three-phase electricity consumption monitoring.
- Commercial building energy management systems.
- Factory and manufacturing plant energy measurement.
- High-current electrical installations using external current transformers.
- Three-phase electrical distribution boards.
- Industrial machinery and production line energy monitoring.
- Dual-tariff electricity consumption recording.
- Bi-directional energy measurement for installations with on-site generation.
- Photovoltaic installations requiring import and export monitoring.
- Commercial and industrial tenant sub-metering, where permitted.
- Building management and energy monitoring systems.
- Energy data collection using compatible infrared communication modules.
- S0 pulse-based energy monitoring and data acquisition.
- Electrical load analysis and energy efficiency programmes.
- Industrial electrical panel manufacturing and OEM installations.
- Facilities management and operational electricity cost monitoring.
