It is necessary to use string combiner boxes to provide ideal protection for PV systems against lightning strikes and overvoltages. Our turnkey string combiner boxes, which can be connected immediately, are reliable system solutions that protect the inverter directly from DC and AC voltage inputs. Overvoltage couplings are diverted directly to the ground potential.
String combiner box for photovoltaic systems up to 1000 V DC for connecting 4x 2 strings. Same number of input and output strings. With surge protection (type 1/2) and cable glands for the input and output side. Connection of the MPP trackers divided between two housings.
String combiner box; MPP voltage: 1500 V DC; string count: 24; equipment: DC switch disconnector, string monitoring, surge protection (type 2), fuse holder (DC +/-, fuse-link can be selected); conductor cross-section DC OUT: 300 mm2, max.; communication: wireless; housing orientation: portrait; type of cable entry: cable gland
String combiner box for photovoltaic systems up to 1,000 V DC for connecting 3x 1 string. With surge protection (type 2) and SUNCLIX DC connectors for the input and output side (SUNCLIX mating connectors supplied as standard).
String combiner box (SCB); MPP voltage: 1000 V DC; number of strings: 1; number of supported MPP trackers: 3; equipment: without special equipment; surge protection: T1 / T2; type of cable entry: MC4-Evo 2; scope of supply: without DC connector for connecting the SCB
String combiner box; MPP voltage: 1500 V DC; string count: 20; equipment: DC switch disconnector, string monitoring, surge protection (type 1/2), fuse holder (DC +/-, fuse-link can be selected); conductor cross-section DC OUT: 300 mm2, max.; communication: wireless; housing orientation: portrait; type of cable entry: cable gland
String combiner box for photovoltaic systems up to 1,000 V DC for connecting 3 x 2 strings. String entry from above. With surge protection (type 1/2), 3x DC switch disconnector, and SUNCLIX DC connectors for the input and output side (SUNCLIX mating connectors supplied as standard).
String combiner box for photovoltaic systems up to 1000 V DC for connecting 1 x 6 strings. With surge protection (type 1/2), fuse holders, and cable glands for the input and output side.
String combiner box; MPP voltage: 1500 V DC; string count: 16; equipment: DC switch disconnector, string monitoring, surge protection (type 2), fuse holder (DC +/-, fuse-link can be selected); conductor cross-section DC OUT: 300 mm2, max.; communication: wireless; housing orientation: portrait; type of cable entry: cable gland
String combiner box for photovoltaic systems up to 1000 V DC for connecting 1x 2 strings. With surge protection (type 1/2), DC switch disconnector, and cable glands for the input and output sides.
String combiner box for photovoltaic systems up to 1,000 V DC for connecting 1x 1 string. With surge protection (type 2) and cable glands for the input and output side.
Whether you are installing and operating a photovoltaic rooftop system or a large solar park, we offer the right surge protection measures. Here you can learn all about the specific challenges and our innovative products that protect your systems efficiently. Find out about your individual application and our contribution to the appropriate surge protection:
Preassembled string combiner boxes reliably protect rooftop systems
With its preassembled string combiner boxes, Phoenix Contact offers reliable system solutions that protect the inverter directly upstream of the DC voltage inputs.
Surge voltage couplings are discharged directly to the ground potential. Due to our coordinated scope of supply, new versions can be made available very quickly.
Safety during maintenance and in the case of danger
We offer a fire department emergency shutdown or switch disconnector as well as surge protection in a single device. An emergency switching off switch can be used to disconnect the photovoltaic system remotely. This provides maximum possible safety during maintenance and in the case of danger.
Easy cabling: the solar connectors are assembled without using special tools
To connect the PV strings, the string combiner boxes are equipped with either our SUNCLIX panel feed-throughs or with cable glands on Push-in terminal blocks. SUNCLIX connectors from Phoenix Contact and Push-in terminal blocks combine the advantages of easy installation with reliable and maintenance-free connection.
