Wireless Metering 30A Dual-Load Switch / Controller


ZBMLC30 – Model # 4040B

Extend energy management and remotely monitor and control up to two of your largest energy-consuming appliances with a ZBMLC30.  Perfectly suited for dual-speed pool pump control and electric heater management, it also lets you see load status and energy consumption.  Set schedules and get alerts about large energy suckers before they drive up your energy bill.

Smart Possibilities:

  • Turn on/ off large devices from anywhere
  • Monitor energy consumption at the appliance level
  • Run your pool pump when it’s most energy efficient and least costly
  • Have large appliances respond to other events in your system


    • ZigBee Home Automation (HA) certified
    • Independently manages two 120/240VAC 50/60 Hz at 30 A (combined) loads or controls 2-speed appliances directly
    • Approved for indoor or outdoor installations (NEMA 4X enclosure)
    • Energy metering measures instantaneous (kW) and lifetime (kWh) energy consumption of loads
    • Also acts as ZigBee router/ range extender providing increased stability and coverage for your network
    • Available with Control4 driver for adding energy management to your Control4 system!
    • Smartenit App compatible
    • 1 year Smartenit warranty


    ZBMLC30 is a ZigBee Home Automation (HA) certified dual load controller that tracks its loads’ power consumption.  Independent control of both loads maximizes intelligent energy management and flexibility.  Designed for either indoor or outdoor use, it has an integrated third relay, making it possible to control two-speed appliances like pool motors without a separate controller.

    When used within a ZigBee HA system managed by one of our Harmony gateways, ZBMLC30 is accessible through the free Smartenit app.  You will be able to clearly see power consumption data, have independent on/off control over each load, and include ZBMLC30 in automation events or schedules all from your phone, tablet or browser.  As part of a larger ecosystem, you can turn off loads in response to energy thresholds, set usage windows, and have loads respond to external sensor data.  Joining an HA network is easy and once achieved, ZBMLC30 also acts as a router, boosting your network’s coverage and stability.

Additional information

Weight 1.5 lbs
Dimensions 9 × 4 × 3 in


User Guides


Operating Voltage: 95-270VAC
Max. Load Current: Relay1: 30 Amps @ 240VAC
Relay 2: 30 Amps @ 240VAC
Relay 3: 30 Amps @ 240VAC
Operating Power: All relays energized : < 2.5 Watts.
Standby: < 0.5 Watts.
Surge Protection: MOV rated for 300V
Connections: Loose 12 gauge wires
Switch Contactor: N.C./N.O. primary relays.
N.O. secondary relays
Size: 4.5″ L x 3.5″ W x 2.25″ H
Weight: 14.5 Oz.
Mounting: Four screw holes or bracket.
Local Load Control: Yes, through push-button
Temperature: -25°-50° C (-13° – 122° F)
Humidity: 5-80 % RH Condensing
Other Specifications:
Indicators: Blue LED: Multi-Function to indicate network status, binding mode,
fault conditions.
Green LED: Indicates main relays are energized.
Red LED: Indicates L2 relay and
second relay on L1 are energized.
Local Control: Multifunction push-button. Operates relays for High/Medium/Off
settings. Used for joining network, permit joining, opt-in,
opt-out, price update and binding.
ZigBee™ function: Manufacturer ID: 0x1075; end device
Calibrated Metering Accuracy: Better than 0.5% 5W-7200W. Supports IEC61036/60687, and
IEC62053-22/-23. Can also be supplied with 1-2% accuracy.

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