Suntree Solar DC Surge Protector (SPD) 40kA 3 Pole 1000Vdc

KSh5,000.00

The Suntree Solar DC Surge Protector (SPD) 40kA 3 Pole 1000Vdc is a critical safety component designed to protect solar photovoltaic (PV) inverters, batteries, and panels from transient voltage surges and lightning strikes . By creating a safe, low-impedance path to ground, it diverts harmful excess energy before it can destroy sensitive equipment.

Suntree Solar DC Surge Protector (SPD) 40kA 3 Pole 1000Vdc Technical Specifications

Product Model: SUP2H1-PV
Number of Poles: 3-Pole (3P) for comprehensive positive, negative, and ground line protection
Max. Continuous Operating Voltage (\(U_{c}\)): 1000V DC
Max. Discharge Current (\(I_{max}\)): 40kA (using an 8/20 μs waveform)
Nominal Discharge Current (\(I_{n}\)): 20kA
Voltage Protection Level (\(U_{p}\)): 3.6 kV
Response Time: < 25 ns
Installation Mode: 35mm standard DIN rail mount
Ingress Protection: IP20
Certifications: CE, TÜV Rheinland, and IEC 61643-31 compliant

Core Features & Architecture

Modular Plug-In Design: The internal protective components utilize plug-in clips, making it easy to swap out degraded modules without rewiring the base.
Visual Status Indicators: It features clear inspection windows. A Green window indicates normal operation, while a Red window warns that the module has failed and must be replaced.
Integrated Safety Mechanisms: Equipped with an internal flash barrier to stop arc propagation and a combined disconnection/short-circuiting device to eliminate fire hazards from DC arcs.

Installation Best Practices

Voltage Cushion: For safety and long-term system stability, ensure that the open-circuit voltage (\(U_{oc}\)) of your solar string does not exceed roughly 830V DC (allowing the recommended 1.2× safety factor below the SPD’s 1000V limit).
Placement: It should be installed in a DC combiner box or a distribution enclosure between the solar panel array and the inverter.
Safe Distances: Maintain at least a 10mm safety gap between the SPD module and any other grounded components inside the housing.