A heavy-duty quad-string DC distribution box for high-power solar installations running four independent MPPT strings. Each string is fused on both the positive and negative legs — eight 1000V DC fuses in total — housed in finger-safe holders for high-breaking-capacity short-circuit protection and safe servicing. Four Type-2 1000V surge protective devices, one per string, divert lightning and switching transients safely to earth before they reach the inverter. Housed in a rugged IP65-rated polycarbonate enclosure with cable glands, clear labelling, and DC polarity marking. Built with Elmex components throughout. Supplied in bulk; custom configurations on request.

Specifications & Technical Details:

Configuration: DCDB 4 In 4 Out (quad string / quad MPPT)
Enclosure: IP65-rated polycarbonate, heavy-duty, outdoor-ready
Fuses: 8 × 16A–32A, 1000V DC, high-breaking capacity, finger-safe holders
SPD: 4 × Type-2, 1000V DC (one per string)
Components: Elmex + Elmex
Suitable for: high-power quad-MPPT solar PV installations
Independent per-string short-circuit and transient protection
Includes cable glands, warning labelling, DC polarity marking
Bulk supply · custom configurations available

Shipping & Returns:
Returns: No returns accepted; item is sold as-is.
Shipping: Local pickup is available. If shipping is required, the buyer is responsible for all actual shipping costs.

FAQs:

How many strings does this handle? Four independent strings (quad-MPPT).
Why eight fuses for four strings? Each string is fused on both the positive and negative legs for full DC-side protection.
Why 1000V rated? For safe protection on higher string voltages used in larger commercial arrays.
What are finger-safe holders? Enclosed fuse holders that prevent accidental contact with live parts during servicing.
Fuse or MCB — which should I choose? Fuses give high-breaking-capacity short-circuit protection at lower cost; MCBs are resettable on site. We supply both versions.
Bulk/custom orders? Yes — message us on WhatsApp.