Fusebox KWH1M100 100A Bi Directional KWH Meter

FuseBox KWH1M100 is a MID approved 100A single phase kWh meter that tracks both import and export energy, in a compact 1 module DIN rail housing. It's an accurate, billing-grade electricity sub meter for solar PV, EV chargers, heat pumps and landlord or commercial sub-metering.

MID Approved Electricity Sub Meter

This MID certified kWh meter is approved to EN 50470-1/3 with Class B accuracy. Its readings are suitable for billing, tenant recharging and energy reporting, not just rough monitoring. It handles direct connection up to 100A (basic current 5A), so you can sub meter a whole single phase supply or a single high-load circuit without current transformers. The terminal cover includes a security seal to protect against tampering once installed.

Bidirectional Import & Export Energy Meter

As a bidirectional energy meter, the KWH1M100 records forward (import) and reverse (export) active energy separately. That makes it ideal as a solar PV generation meter, battery storage meter or check meter wherever energy flows both ways. Two configurable pulse outputs (1000 imp/kWh) link the meter to monitoring systems, data loggers or building management systems for remote reading. A red LED flashes in proportion to consumption for quick visual checks on site.

Full Energy Data on a Backlit Display

The easy-to-read backlit LCD shows total kWh up to 99999.99kWh. The touch button on the front scrolls through voltage, current, active, reactive and apparent power, power factor, frequency, and maximum demand in both directions. That gives installers and facilities managers useful diagnostic data from a single EV charger meter or heat pump meter. Running consumption is under 1W.

Compact 1 Module DIN Rail Energy Meter

At just 18mm wide, this DIN rail kWh meter fits on a standard 35mm top hat rail in consumer units, distribution boards and modular enclosures. Terminals accept cables up to 25mm² with a 2.5Nm torque setting. The double-insulated Class II case is rated IP51, with IP20 terminals, and the meter operates in temperatures from -25°C to +70°C.

Key Features of the FuseBox 100A Single Phase MID Approved kWh Meter KWH1M100 Include:

• MID Approved Class B Accuracy – Suitable For Billing & Tenant Recharging
• Bidirectional Metering Records Import & Export Energy Separately
• Ideal For Solar PV, Battery Storage, EV Chargers & Heat Pumps
• Direct Connected Up To 100A – No CTs Required
• Backlit LCD Display With Touch Button Scrolling
• Measures kWh, kVArh, V, A, W, var, VA, Power Factor, Hz & Maximum Demand
• Two Configurable Pulse Outputs For Remote Monitoring & BMS
• Red LED Consumption Indicator
• Sealable Terminal Cover For Tamper Protection
• Compact 1 Module (18mm) DIN Rail Mounting
• Low Internal Power Consumption: Less Than 1W
• Maximum Current (Imax): 100A
• Basic Current (Ib): 5A
• Nominal Voltage: 230V 50Hz
• Pulse Constant: 1000 imp/kWh
• Display Range: 99999.99kWh
• Maximum Cable Size: 25mm²
• Terminal Torque: 2.5Nm
• IP51 Case, IP20 Terminals
• Class II Double Insulated
• Operating Temperature: -25°C To +70°C
• Height: 90mm
• Width: 18mm
• Depth: 72mm
• Weight: 0.12kg
• Complies With EN 50470-1/3
• UKCA & CE Marked, RoHS Compliant

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