APsystems ECU-R Energy Communication Unit – Wi-Fi & Ethernet Solar Monitoring

$312.00

Questions or Bulk Orders?

Pickup currently unavailable at USA Fulfillment Center

30-Day Price Guarantee — Find the same product for less within 30 days of purchase? We’ll match it. See details.

Talk to Real Experts Anytime

Lifetime tech support from our in-house specialists

Hassle Free Warranty

Effortless Warranty for Your Ease.

Unbeatable Value, Guaranteed

Find it cheaper elsewhere? We'll match it.

Over 25 years of
solar industry experience

Trusted by
10,000+ American
customers

Hassle-free 30-day
return policy

Industry-Leading
Warranty

About this product

What it is, and what it is for

The APsystems ECU-R Energy Communication Unit collects and transfers performance data from compatible APsystems microinverters, providing real-time visibility into the solar array. Built-in Wi-Fi and Ethernet offer flexible network connections, while ZigBee communication links the gateway to the inverters.

Key features

Real-time inverter and module performance monitoring.
Communicates with up to 30 inverters.
Integrated 802.11g/n Wi-Fi and 10/100 Mbps Ethernet.
2.4 GHz ZigBee inverter communication.
Compact, fanless enclosure for indoor installation.

Technical specifications

Manufacturer	APsystems
Model	ECU-R
Maximum communicating inverters	30
Wi-Fi	802.11g/n
Ethernet	10/100 Mbps, auto-sensing and auto-negotiation
Inverter communication	ZigBee, 2.4 GHz
Power supply	120–240 V AC, 50–60 Hz; adapter output 5 V DC, 2 A
Power consumption	1.7 W
USB interfaces	Two 5 V DC, 0.5 A outputs
Dimensions (W × H × D)	122 × 87 × 25 mm (4.8 × 3.4 × 0.98 in)
Weight	150 g (0.33 lb)
Operating temperature	-20°C to 65°C (-4°F to 149°F)
Cooling	Natural convection; no fans
Enclosure rating	Indoor, NEMA 1 / IP20

Installation and compatibility

Install indoors in a location suited to the gateway's operating conditions and communication range. Confirm compatibility with the specific APsystems microinverter model and monitoring configuration before ordering. The 30-unit limit refers to inverters, not solar modules.

Common questions

Before you order.

If yours isn't here, ask an engineer. It costs nothing and it's the step most people skip.

What if I'm not sure this is the right product?

Ask before you order. Send us what you need to run, or your pool or well figures, and an engineer will confirm the choice — it costs nothing. Or use the finder below, which sizes from what you actually run and shows its reasoning.

Ready to order