Energy cost meter AC Sonoff POWR316D

The Sonoff POWR316D is an AC energy cost meter designed for monitoring household and small commercial electricity consumption. With a maximum current capacity of 16 A and support for 50–60 Hz mains frequency, the compact unit (54 mm wide, 31 mm deep, 98 mm high) fits into distribution boards and electrical enclosures where space is limited. The device provides real-time measurement of energy usage and presents readings in a straightforward format suitable for cost tracking and basic energy management.

Advantages

The Sonoff POWR316D combines compact dimensions and a clear measurement range, enabling installation in confined electrical compartments without major wiring changes. Its rated current of up to 16 A covers most lighting circuits and small appliance lines, while compatibility with 50–60 Hz mains ensures use in common residential and light commercial environments. The straightforward measurement capability helps users compare consumption over time and identify opportunities to reduce energy costs.

Suitable for

• Monitoring single-phase circuits for lighting and small appliances
• Measuring energy consumption of individual circuits within a distribution board
• Tracking power usage to estimate electricity costs for billing or budgeting
• Use in homes, small offices, workshops, and rental properties

Key specifications

• Operating type: AC energy meter for single-phase circuits
• Maximum continuous current: 16 A
• Frequency range: 50–60 Hz
• Dimensions (W × D × H): 54 mm × 31 mm × 98 mm
• Measurement focus: active energy consumption and related cost monitoring

How to use

Install the Sonoff POWR316D inside a compatible distribution board or electrical enclosure following local electrical regulations and safety practices. Connect the meter in series with the load you wish to monitor, ensuring correct line and neutral wiring for single-phase AC. After safe connection and powering, the device begins measuring active energy consumption; refer to the product manual for information on reading displays or interfacing with any external display or monitoring system. Ensure that the load connected does not exceed the rated 16 A continuous current.

Usage recommendations

Place the meter on circuits where continuous monitoring will provide actionable data, such as major lighting circuits, dedicated appliance lines, or tenant meters. Keep the device away from excessive heat and moisture, and verify connections periodically. For loads with high inrush currents (motors, pumps), check that peak currents do not overload the meter and consider using a dedicated meter sized for higher currents if required.