Single-phase direct electricity consumption meter FF WZE-1 class 1 230 V 1 A–100 A

The FF WZE-1 single-phase direct electricity consumption meter (class 1) is designed for measuring active electrical energy in low-voltage installations. It operates at 230 V and is intended for direct connection to circuits with nominal currents in the approximate range of 1–100 A, providing energy monitoring and consumption accounting without the need for external current transformers. The compact design and class 1 accuracy make it suitable for residential, commercial and light-industrial environments where reliable active-energy measurement is required.

Advantages

This single-phase direct meter delivers class 1 accuracy for precise active-energy readings and supports direct connection to low-voltage circuits, eliminating the complexity of additional current transformers. Its operating voltage of 230 V matches standard single-phase supplies, and the wide nominal current range covers typical consumer and small commercial loads. The meter’s straightforward installation requirements and stable measurement characteristics support consistent consumption accounting and simplified maintenance procedures.

Suitable for

• Residential electricity consumption monitoring and billing
• Small commercial premises and retail outlets
• Light industrial applications with single-phase loads
• Energy audits and local consumption verification

Key specifications

• Supply voltage: 230 V AC single-phase
• Nominal current range: approximately 1 A to 100 A (direct connection)
• Measured quantity: active electrical energy
• Accuracy class: class 1
• Connection type: direct connection to the circuit (no external CT required)
• Application: low-voltage installations

How to use

Install the meter in accordance with local electrical regulations and wiring practices. Connect the live and neutral conductors to the meter’s input terminals and the outgoing conductors to the output terminals, ensuring secure and correctly rated connections. Verify that the supply is 230 V single-phase and that the load current falls within the meter’s direct-connection range. After connection, check the meter display or output for stable energy readings and confirm proper operation before returning the installation to normal service.

Usage recommendations

Ensure installation and maintenance are performed by a qualified electrician and follow applicable safety standards. For circuits with currents consistently above the direct-connection range or requiring remote current sampling, select a meter with compatible external transformers or a model rated for higher currents. Periodic verification and calibration checks are recommended to maintain measurement accuracy over time.