HA-4Way-500VDC-40A 1-string PV combiner box front view1 / 6

PV Combiner Box

PV Combiner Box 1 String Input 1 Output, 500V DC 40A Breaker & 40kA SPD

The HA-4Way-500VDC-40A is a compact 1-string PV combiner box designed to protect a single solar string before it reaches the inverter. It integrates a 40A DC circuit breaker for overload and short-circuit protection and a 500V DC surge protection device rated at 40kA max discharge current to shield the system from lightning-induced transients. Housed in a hard, flame-retardant plastic enclosure with IP65 ingress protection, it is built for outdoor installation on both on-grid and off-grid PV systems.

Key Features

  • 1-string PV input, 1 output configuration
  • 40A DC circuit breaker for overload and short-circuit protection
  • 500V DC SPD with 40kA maximum discharge current (lightning protection)
  • Flame-retardant hard plastic housing
  • IP65 waterproof and dustproof 鈥?suitable for outdoor installation
  • Compatible with both on-grid and off-grid PV systems

Samples available · OEM pricing on request · Ships worldwide

Technical Specifications

ModelHA-4Way-500VDC-40A
PV String Inputs1
Outputs1
Max System Voltage500V DC
DC Circuit Breaker40A
Surge Protection (SPD)500V DC, 40kA max discharge current
Housing MaterialFlame-retardant hard plastic
Protection LevelIP65 (waterproof & dustproof)
InstallationOutdoor
Applicable SystemsOn-grid / Off-grid PV systems