Wattox 506 KTL-H1
A utility-grade string inverter built for high-power PV sites, combining ≥99% max efficiency, 1500V input, and intelligent protection features for reliable operation in harsh environments.

Key features
Smart string-level disconnection (SSLD)
Enables string-level disconnection to improve maintenance safety and provide more granular control over PV inputs.
Smart connector-level detection (SCLD)
Detects connector-level risks to help prevent faults and reduce unexpected downtime.
Smart self-cleaning fan / Intelligent fan anti-icing
Supports automated fan cleaning and anti-icing to sustain cooling performance in challenging weather conditions.
PV-array string fault detection
Detects PV string faults early to enhance system availability and speed up troubleshooting.
Type II surge protection (AC/DC)
Includes Type II surge arresters on both AC and DC sides to strengthen resilience against surges.
Smart IV curve diagnosis (Supported)
Supports IV curve diagnosis to help identify underperforming strings and improve O&M efficiency.
Technical specifications
Maximum Efficiency
99.04%
European Efficiency
98.8%
Maximum Input Voltage
1,500 V
Number of MPPT
6
Maximum Current per MPPT
105 A
Maximum Short-Circuit Current per MPPT
180 A
Maximum PV Inputs per MPPT
6
Starting Voltage
MPPT Operating Voltage Range
500 V – 1,500 V
Nominal Input Voltage
1,200 V
Nominal AC Active Power
460,000 W
Maximum AC Apparent Power
506,000 VA
Maximum AC Active Power (cosφ=1)
460,000 W
Nominal Output Voltage
1,000 V, 3W + PE
Nominal AC Grid Frequency
50 Hz / 60 Hz
Nominal Output Current
265.6 A
Maximum Output Current
292.2 A
Adjustable Power Factor Range
0.8 LG .....0.8 LD
Total Harmonic Distortion
THDi < 1% (Rated)
Smart Wire Level Disconnection (SSLD)
Available
Smart Connector Level Detection (SCLD)
Available
AC Overcurrent Protection
Available
DC Reverse Polarity Protection
Available
PV Array String Fault Detection
Available
DC Surge Protector
Available
AC Surge Protector
Available
DC Insulation Resistance Detection
Available
Leakage Current Detection Unit
Available
Indicator
LED indicators
USB
MBUS
Dual channel
RS485
Dimensions (W x H x D)
1,065 × 800 × 400 mm
Weight (with mounting profile)
130 kg
Operating Temperature Range
-25°C ~ 60°C
Cooling Method
Smart Fan Cooling
Standards
IEC 62109-1/-2, IEC 62920, IEC 60947-2, EN 50549-2, IEC 61683, etc.
Resources
Datasheets
User manual
Certificates
For full technical documentation, user manuals, and additional resources, please visit our Librarypage.
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