Grid-tie Technology

The 240 VAC, 60 Hz output inverter operates in concert with the utility, producing utility grade AC power from DC energy generated by a PV array, without the need for batteries.

The Sun Tie XR efficiently produces AC power that is consumed at the site or sells excess power back to the utility, significantly reducing monthly electric bills.

With Sunsweep^TM Maximum Power Point Tracking (MPPT) technology, the solar array is carefully managed by the inverter to produce the maximum amount of DC power.

The optional remote meter (STRM) can be located 50 ft away from the inverter and can track the overall system performance, monitoring days, weeks, and even months.

The optional rainshield (STRS) allows the Sun Tie XR to be located in an outdoor location, minimizing DC wire run length.

Features

• Quiet, efficient operation, utilizing high frequency solid-state design.
  
• Durable construction designed to accommodate harsh environments.
• 1.0 kW, 1.5 kW, 2.0 kW, and 2.5 kW continuous output models.
  
• Front panel LCD display shows system status and power production information.
  
• Standard 2 year warranty with an optional extension to 5 years.

All-In-One Design

• Includes the required electrical components for an NEC code compliant system installation.
  
• Incorporates all AC and DC disconnects, PVGFP, combiner board, and a lightning arrestor, which simplifies system complexity and installation time at the site.

System Expandibility

• Requires a nominal 48 VDC PV array to produce AC power, allowing the system to enable with a small PV array, lowering the barrier for expensive entry costs.
  
• System expansion can be accomplished at a later date by adding additional "strings" of four modules in series.
  
• Multiple Sun Tie XR units can be installed at a single site when the PV array exceeds the capacity of a single inverter.

Specifications

	STXR1000	STXR1500	STXR2000	STXR2500
AC Output Voltage (Nominal)	240 VAC	240 VAC	240 VAC	240 VAC
AC Output Voltage Range	211-264 VAC	211-264 VAC	211-264 VAC	211-264 VAC
Continuous Power (@ 25 °C)	1000 VA	1500 VA	2000 VA	2500 VA
Efficiency (Peak)	92%	92%	94%	94%
AC Output Characteristics	Current Source	Current Source	Current Source	Current Source
Frequency (Nominal)	60 Hz	60 Hz	60 Hz	60 Hz	+0.5 Hz, -0.7 Hz default per IEEE929 and UL 1741
DC Input Voltage (Nominal)	48 VDC	48 VDC	48 VDC	48 VDC	Typically 4 nominal 12 VDC PV modules, in series
Sunsweep MPPT Voltage Range Full Power Output	44 -85 VDC 52-85 VDC	44 -85 VDC 52-85 VDC	44 -85 VDC 52-85 VDC	44 -85 VDC 52-75 VDC
Absolute Maximum PV Open Circuit Voltage (Voc)	120 VDC	120 VDC	120 VDC	120 VDC
Mechanical Specifications
Operating Temperature Range	-38° F to 113° F (-39° C to 45° C) (A full temperature versus performance curve is available in the manual)
Enclosure Type	Outdoor, powder coated aluminum enclosure, fully screened, rainproof - optional rainshield required for outdoor installation
Unit Weight	35 lb (16 kg)
Shipping	40 lb (18 kg)
Inverter Dimensions	33" H x 13" W x 5" D (83 cm H x 34 cm W x 13 cm D)
Shipping Dimensions	38" H x 16" W x 10" D (94 cm H x 39 cm W x 24 cm D)
Mounting	Vertical wall mount only
Altitude	15,000' (4,572 m)
Features and Options
Forced Air Cooling	Standard dual speed DC brushless fan
Islanding Protection	Standard over/under AC voltage and frequency detection plus active islanding protection - meets IEEE 929 and UL 1741 requirements
User Display	Standard backlit alphanumeric LCD display for system status and daily energy harvest (Wh)
AC Disconnect	Standard double-pole 15 amp, 240 VAC branch rated circuit breaker
DC Disconnect	Standard single-pole 100 amp, DC rated circuit breaker
Remote Monitor	STRM - optional remote display unit for status, resettable Wh meter, tech menu, and daily energy harvest with 50’ cable
Rain Shield	STRS - optional protective rain shield required for outdoor installation
PV Ground Fault Protection System	Standard on STXR1500 and STXR2500
PV Combiner Board	Standard on STXR1500 and STXR2500 with 6 fused inputs, 20 amps maximum per input
Lightning Arrestor Combined AC/DC Protection	Standard on all models
Common Specifications
Waveform	Sine wave, voltage referenced
Total Harmonic Distortion	Less than 5% at rated power per IEEE929 and UL 1741
Listings	UL Listed to UL 1741 - 1999 and cUL Listed to CSA 22.2 No. 107.1-95