How to reduce DC Isolating Switch failure frequency?
To fundamentally reduce the failure rate of DC isolating switch, you need a three-pronged strategy: selecting arc-resistant, certified components, such as Suntree's specialized models;

• Quickly dissipate heat and reduce the service temperature
• Plug-in clips, Easy module replacement
• Flash Barrier, Prevent arc propagation in current impact
• Use a suitable electrical insulator to keep a 10mm min.safety distance from the PV-SPD and other grounfed parts in the housing
• The green and red visual indicator flags show the module protective status (green = good, red = replace)
• Features visual indication and optional remote contact signaling (floating changeover contact)
• Feature a combined disconnection
• Short-circuiting (shunting) device with safe electrical isolation to Prevent fire damage due to DC arcs.



| Product Model | SUP2H-PV | ||
| Max. continuous operating voltage (Uc) | 500VDC | 600VDC | 800VDC |
| Max. discharge current (Imax)(8/20u s) | 20、40KA | ||
| Protection level (In)Up | 2.8kV | 2.8kV | 3.0kV |
| Service temperature | -40℃~+70℃ | ||
| Relative humidity | ≤95%(25℃) | ||
| Installation mode | 35mm standard guide rail | ||
| Window indication | Normakt green; Failure: Red | ||
| Ingress protection | IP20 | ||
| Numbers of poles | 2P | ||
| Leakage 0.75u ImA(uA) | ≤20 | ||
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