
Multispan WM-11 Single Phase Watt Meter | 20–300V AC | 1A/5A Input | CT Selectable | Panel Mount
Product Summary:
The Multispan WM-11 is a precision-engineered Single Phase Watt Meter designed for accurate real-time power measurement. With selectable CT input (1A/5A), wide input voltage range (20–300V AC), and LED display, it is ideal for energy monitoring, testing, and educational use in labs, schools, homes, and industries.
🔹 Key Features:
Voltage Input: 20–300V AC
Current Input: 10mA to 5A AC (CT selectable 1A / 5A)
Display: 4-digit red LED, 0.56”
Measurement Range: 1W to 1250W
CT Ratio Setting: Adjustable from 5A to 50/5A
Accuracy Class: 0.5
Power Supply: 230V AC, 50Hz
Panel Size: 96x96x45 mm (Cutout: 92x92 mm)
Protection: IP65 front side
Operating Temp: 10°C to 50°C
Humidity: Up to 95% RH non-condensing
🔹 Applications:
Testing LED and CFL lamps
Energy audits in homes, shops & offices
Electrical labs and demonstration setups
Industrial equipment load monitoring
Energy-saving campaigns and displays
🔹 Product Benefits:
Versatile Current Input: Switch easily between 1A or 5A CT inputs
Clear LED Display: Bright and accurate watt display
User-Friendly Configuration: CT ratio setting via front key
Reliable Panel Design: IP65 protection for industrial environments
Compact Size: Saves space with easy panel mounting
Accurate Measurement: Class 0.5 precision for critical energy audits
❓ FAQs:
Q1. What CT input options are available in WM-11?
WM-11 supports both 1A and 5A CT input, selectable during setup.
Q2. How do I change the CT ratio?
Press and hold the SET key during power ON to enter CT setting mode, then use the keys to select a ratio from 5A to 50/5A.
Q3. Can WM-11 be used in residential or educational setups?
Yes, it is ideal for houses, offices, schools, and labs for demonstration, testing, and energy-saving analysis.
Q4. What is the voltage range it can measure?
It operates between 20V to 300V AC, suitable for single-phase systems.
Q5. What is the panel cutout size required?
The unit fits in a 92x92 mm panel cutout with external dimensions of 96x96 mm.



