1500V DC Combiner Box – 12 In 1 Out with 250A Main Switch, IP65

Name: 1500V DC Combiner Box 12 In 1 Out - ETEK Electri
SKU: EKDBT-PV12/1-1500

The EKDBT-PV12/1-1500 is a 1500V DC combiner box that merges 12 PV strings into one output. It integrates 24 fuses, a 40kA surge protector and a 250A main switch in an IP65 metal enclosure, protecting commercial and industrial solar arrays.

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ModelEKDBT-PV12/1-1500

CategoryDC Combiner Boxes, PV Combiner Boxes

AvailabilityIn stock

CE & TUV certified
Worldwide shipping
OEM & ODM support

Product Features of 1500V DC Combiner Box

This 1500V DC combiner box simplifies the wiring between PV strings, DC distribution cabinets and inverters while adding short-circuit and over-voltage protection:

12 string inputs combined into 1 output (12/1), rated for 1500V DC systems.
24 DC fuses (EKF1-15PVH-10L-1P, 15A, 1500VDC) – one on the positive and one on the negative of each string.
Type 2 DC surge protector (EKU5-T2-40PV-3M1500, 40kA, 3P, 1500VDC) for over-voltage and lightning-induced surge protection.
Main switch EKM7DC-250M/2 (2P, 250A, 1500VDC) – a 250A DC MCCB for safe load isolation and overcurrent protection of the output.
IP65 metal enclosure, 750×560×180 mm; shell material can be customized.
Optional anti-reflection (anti-backflow) diode and optional monitoring module.
Protective earth (PE) terminal included; configuration can be customized to project needs.

Commercial Applications 1500V DC Combiner Box

The EKDBT series is designed for residential, commercial, and industrial photovoltaic power generation systems. At 1500V DC, this 1500V DC combiner box suits large-scale arrays where higher string voltage reduces the number of combiner points and cabling, with a compact 12-string design that can be matched to inverter and DC distribution cabinet inputs.

Applications & Use Cases

Commercial and industrial rooftop PV systems.
Ground-mounted solar plants and large-scale PV arrays.
String combining ahead of central or string inverters.
Systems requiring a 1500vdc combiner box with fused string protection and surge protection.
Projects requiring monitoring or anti-backflow protection (optional modules).

Technical Specifications of 1500V DC Combiner Box

Key electrical and component data for the EKDBT-PV12/1-1500 1500V DC combiner box:

Parameter	Specification
Model	EKDBT-PV12/1-1500
Series	EKDBT-PV (EK = ETEK, DBT = metal box, PV = general photovoltaic sites)
String in / String out	12 / 1
System voltage	1500V DC
Protection level	IP65
DC SPD	EKU5-T2-40PV-3M1500 (40kA, 3P, 1500VDC) × 1
DC fuse	EKF1-15PVH-10L-1P (15A, 1500VDC) × 24
Main switch	EKM7DC-250M/2 (2P, 250A, 1500VDC) × 1
Anti-reflection diode	Optional
Monitoring module	Optional
Enclosure	Metal (customizable shell materials), IP65
Enclosure size	750 × 560 × 180 mm

Dimensions and Wiring of 1500V DC Combiner Box

The metal enclosure of this 1500V DC combiner box measures 750 × 560 × 180 mm (IP65). The wiring diagram below shows the internal layout:

Dimensions and Wiring of 1500V DC Combiner Box

Negative inputs: FU1~5- and FU6~12- (strings 1–12) pass through the fuses to the negative busbar and then to OUT- on the main switch.
Positive inputs: FU1~5+ and FU6~12+ (strings 1–12) pass through the fuses to the positive busbar and then to OUT+ on the main switch.
The surge protector is connected between the positive and negative lines and the PE (protective earth) terminal.

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