Electric energy meter pro tec Pro-Tec 3F digital MID BYL-3F 0.5-10(100)A 3-phase

The pro tec Pro-Tec 3F digital MID BYL-3F 0.5-10(100)A is a three-phase electric energy meter designed to measure active energy in balanced and unbalanced 3-phase installations. With MID approval, the meter meets legal metrology requirements for billing and official consumption measurement. It supports a rated current range of 0.5–10 A and can register higher currents up to 100 A when used with external current transformers or appropriate wiring connections as specified by the manufacturer. The compact digital display provides clear cumulative energy readings and supports reliable monitoring for commercial and residential applications.

Advantages

The meter delivers MID-certified accuracy suitable for billing and energy accounting, offering repeatable measurements across the specified current range. Its digital design ensures precise registration of active energy with straightforward readout and low-maintenance operation. Compatibility with external current transformers extends measurement capability to higher current systems without changing the primary device. Built for three-phase systems, it handles both balanced and unbalanced loads and is intended for fixed installation in consumer mains or sub-distribution panels.

Suitable for

• Billing and energy accounting in commercial or multi-tenant residential buildings
• Monitoring consumption of three-phase motors, HVAC systems and large appliances
• Submetering in factories, workshops and service premises
• Integration into energy management systems for usage tracking

Key specifications

• Measurement type: Active energy (three-phase)
• Approval: MID-certified for legal metrology use
• Rated current range: 0.5–10 A
• Maximum measurable current: up to 100 A with external CTs or specified wiring
• Phases: Three-phase (3F)
• Display: Digital cumulative energy readout
• Mounting: Panel or DIN-rail compatible housing (refer to manufacturer installation guide)

How to use

Install the meter in accordance with local electrical regulations and the manufacturer’s installation manual. Connect the three-phase supply and neutral conductors to the appropriate terminals, and fit external current transformers when measuring currents above the rated 10 A, following correct CT polarity and ratio. After wiring, verify proper phase sequence and meter initialization; the digital display will show cumulative active energy values. Use the meter for continuous monitoring and periodic reading for billing or energy management purposes.

Usage recommendations

For accurate measurement and compliance with MID requirements, use certified external current transformers when exceeding the rated current and perform periodic verification/calibration according to local regulation. Ensure professional installation by a qualified electrician and protect the device from moisture, extreme temperatures and mechanical damage to maintain measurement accuracy.