AZO DIGITAL DC Surge Protective Device Type 2 1000V 20kA 3-Pole for PV Systems

The AZO DIGITAL AZO00D1240 is a high-performance Type 2 DC Surge Protective Device (SPD) designed specifically for photovoltaic (PV) systems. It provides reliable protection against transient overvoltages caused by lightning or switching operations, safeguarding your solar installation and connected equipment. With a maximum continuous operating voltage of 1000 V DC and a nominal discharge current of 20 kA, this 3-pole SPD ensures robust protection in both common and differential modes.

Advantages

Integrated thermal disconnector for enhanced safety; visual fault indication (green/red flag) for easy status monitoring; compact DIN rail mounting for simple installation; high surge handling capacity with fast response time (<25 ns); flame-retardant thermoplastic housing (UL94 V-0).

Suitable for

• Photovoltaic (PV) systems up to 1000 V DC
• Commercial and industrial solar installations
• Protection of inverters, combiner boxes, and other DC-side equipment

Key specifications

• Product Type: DC Surge Protective Device (SPD)
• Protection Class: Type 2
• Maximum Continuous Operating Voltage (Uc): 1000 V DC
• Nominal Discharge Current (In): 20 kA (8/20 µs)
• Maximum Discharge Current (Imax): 40 kA (8/20 µs)
• Voltage Protection Level (Up): ≤ 3.8 kV
• Number of Poles: 3 (2+1 configuration)
• Protection Mode: Common and Differential Mode
• Mounting Type: DIN Rail (35 mm)
• Operating Temperature Range: -40°C to +80°C
• Enclosure Protection (IP Rating): IP20
• Standards Compliance: EN 50539-11, IEC 61643-31
• Thermal Disconnector: Integrated
• Fault Indication: Visual (Green/Red Flag)
• Maximum Wire Cross-Section: 35 mm² (stranded), 25 mm² (solid)
• Response Time: < 25 ns
• Housing Material: Thermoplastic, UL94 V-0 Flame Retardant

Recommendations

For optimal protection, install this SPD as close as possible to the equipment to be protected. Ensure proper grounding and compliance with local electrical codes. Regularly check the visual indicator to confirm operational status.