# STRING COMBINER BOX, 1KV/40A, 3X1 STRING
**URL**: https://novapart.co/products/2404301/string-combiner-box-1kv-40a-3x1
**SKU**: 2404301
**Manufacturer**: PHOENIX CONTACT
**Category**: Automation & Process Control || Process Controllers, Programmers & Indicators || Controllers || Controller Accessories
**Price**: €479.5400
**Stock**: 10+
**Lead Time**: 36 days (indicative)
## Specifications
| Parameter | Value |
|---|---|
| Svhc | No SVHC (04-Feb-2026) |
| Product Range | - |
| Current Rating | 40A |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:3293559/)
https://www.phoenixcontact.com/gb/products/2404301
## String combiner box (SCB) - SOL-SC-1ST-0-DC-3MPPT-1001 - 2404301
Please be informed that the data shown in this PDF Document is generated from our Online Catalog. Please find the complete data in the user's documentation. Our General Terms of Use for Downloads are valid (http://phoenixcontact.com/download)
String combiner box for photovoltaic systems up to 1000 V DC for the connection of 3x 1 string. With surge protection and SUNCLIX DC connector for the input and output side.
## Product Description
The Solarline string combiner boxes (SCBs) are used in both small rooftop systems and large ground-mounted systems. Their functions include collecting and protecting strings and, if necessary, separating the panels from the rest of the system by means of a switch disconnector or fire service switch disconnector.
## Your advantages
- Fast installation and startup
- Large portfolio of string combiner boxes in stock
- Application-oriented consultation
Standard-compliant switchgear and controlgear assembly, thanks to use of DIN EN 61439
## Key Commercial Data
|Packing unit|1 pc|1 pc|||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
||||||||||||||
|GTIN|||||||||||||
||||||||||||||
|GTIN|4055626396255||||||||||||
|Weight per Piece (excluding packing)|3,100.000 g||||||||||||
|Custom tariff number|85363030||||||||||||
|Country of origin|Germany||||||||||||
## Technical data
## System parameter
|System voltage|1000 V DC (Umax)|
|---|---|
|Number of string inputs|1 (per MPP tracker)|
|Current per string (max.)|40 A (Imax)|
|Number of outputs|1 (per MPP tracker)|
|Number of supported MPP trackers|3|
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## String combiner box (SCB) - SOL-SC-1ST-0-DC-3MPPT-1001 - 2404301
## Technical data
|Technical data||
|---|---|
|Safety equipment||
|Surge protective device
T1 / T2
Protection level Up
≤ 3.5 kV
Total discharge current Itotal(8/20) µs
40 kA
Total discharge current Itotal(10/350) µs
5 kA
~~——S~~||
|Cable entry||
|Type of cable entry|SUNCLIX|
|Cable cross section string input|2.5 mm² ... 6 mm²|
|Cable cross section output|2.5 mm² ... 6 mm²|
|Cable cross section grounding|16 mm² (2x)|
|Sealing area grounding|6 mm ... 12 mm (2x)|
|General data||
|Material cover/door
Polycarbonate (transparent)
Housing material
Polycarbonate
Degree of protection
IP65
Protection class
II
~~SSSS——~~||
|Dimensions||
|Outer dimensions: width, height, depth|254 mm x 180 mm x 111 mm (Housing dimensions)|
|Ambient conditions||
|Ambient temperature (operation)|-20 °C ... 55 °C|
## Drawings
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https://www.phoenixcontact.com/gb/products/2404301
## String combiner box (SCB) - SOL-SC-1ST-0-DC-3MPPT-1001 - 2404301
Schematic diagram
Schematic diagram
Connection of the protective grounding conductor
Connection of the protective equipotential bonding conductor
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## String combiner box (SCB) - SOL-SC-1ST-0-DC-3MPPT-1001 - 2404301
Connection diagram
Schematic application drawing
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https://www.phoenixcontact.com/gb/products/2404301
## String combiner box (SCB) - SOL-SC-1ST-0-DC-3MPPT-1001 - 2404301
Dimensional drawing
Housing dimensions
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https://www.phoenixcontact.com/gb/products/2404301
## String combiner box (SCB) - SOL-SC-1ST-0-DC-3MPPT-1001 - 2404301
Circuit diagram
Connection of the remote indication contact on the surge protection
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https://www.phoenixcontact.com/gb/products/2404301
## String combiner box (SCB) - SOL-SC-1ST-0-DC-3MPPT-1001 - 2404301
Schematic diagram
Connection of the PV strings
Schematic diagram
Connection to the inverter
## Classifications
eCl@ss
eCl@ss 10.0.1 27142422 ~~|~~
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https://www.phoenixcontact.com/gb/products/2404301
## String combiner box (SCB) - SOL-SC-1ST-0-DC-3MPPT-1001 - 2404301
## Classifications
eCl@ss eCl@ss 5.1 27371890 eCl@ss 7.0 27142422 eCl@ss 8.0 27142422 eCl@ss 9.0 27142422 ~~_——S————~~ ETIM ETIM 4.0 EC000816 ETIM 5.0 EC000268 ETIM 6.0 EC000268 ETIM 7.0 EC000268 ~~SS~~ Accessories Accessories
## Photovoltaic connector
## Protective cap - PV-C PROTECTION CAP - 1785430
Photovoltaic connector, Range of articles: PV-JB TF, Protective cap, color: black, number of positions: 1
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Connector - PV-CF-S 2,5-6 (+) - 1774674
Photovoltaic connector, Range of articles: PV-CF-S, Connector, housing material: PPE, color: black, number of positions: 1, min. conductor cross section: 2.5 mm², max. conductor cross section: 6 mm², rated current: 27 A, Connection method: Spring-cage, Type of contact: Socket. can only be released using a tool
Connector - PV-CM-S 2,5-6 (-) - 1774687
Photovoltaic connector, Range of articles: PV-CM-S, Connector, housing material: PPE, color: black, number of positions: 1, min. conductor cross section: 2.5 mm², max. conductor cross section: 6 mm², rated current: 27 A, Connection method: Spring-cage, Type of contact: Pin. can only be released using a tool
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https://www.phoenixcontact.com/gb/products/2404301
## String combiner box (SCB) - SOL-SC-1ST-0-DC-3MPPT-1001 - 2404301
## Accessories
Connector - PV-CF-S 6-16 (+) - 1790784
Photovoltaic connector, Range of articles: PV-CF-S, Connector, housing material: PPE, color: black, number of positions: 1, min. conductor cross section: 6 mm², max. conductor cross section: 16 mm², rated current: 40 A, Connection method: Spring-cage, Type of contact: Socket. can only be released using a tool
## Photovoltaic Y-distributor - PV-ED6/Y-120(2+/1-) - 1030649
Photovoltaic connector, Photovoltaic Y-distributor, housing material: PPE, color: black. Assembled with SUNCLIX - 1x male (minus) - 2x female (plus); length of single cable 0.12 m, varying number of nodes and customer-specific cable lengths are available on request.
Connector - PV-CM-S 6-16 (-) - 1790797
Photovoltaic connector, Range of articles: PV-CM-S, Connector, housing material: PPE, color: black, number of positions: 1, min. conductor cross section: 6 mm², max. conductor cross section: 16 mm², rated current: 40 A, Connection method: Spring-cage, Type of contact: Pin. can only be released using a tool
## Photovoltaic Y-distributor - PV-ED6/Y-120(1+/2-) - 1030650
Photovoltaic connector, Photovoltaic Y-distributor, housing material: PPE, color: black. Assembled with SUNCLIX - 1x female (plus) - 2x male (minus); length of single cable 0.12 m, varying number of nodes and customer-specific cable lengths are available on request.
## Photovoltaic adapter set - PV-AS-MC4/6-150-MN-SET1 - 1079531
Photovoltaic connector, Photovoltaic adapter set, type: Adapter, color: black, rated current: 35 A, cable length: 150. Adapter pair (+- / -+), assembled with SUNCLIX - 1 x pin (minus) and MC4 - 1 x socket (plus) or with SUNCLIX - 1 x socket (plus) and MC4 - 1 x pin (minus), free cable length: 0.15 m, cable type: multi-standard (UL/PV1-F), customerspecific cable length available on request
## Replacement plug
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https://www.phoenixcontact.com/gb/products/2404301
## String combiner box (SCB) - SOL-SC-1ST-0-DC-3MPPT-1001 - 2404301
## Accessories
Type 1/2 surge protection plug - VAL-MS-T1/T2 1000DC-PV-ST - 2801162
Replacement plug for PV arrester combinations from the VAL-MS-T1/T2 1000DC-PV-... product range
Phoenix Contact 2020 © - all rights reserved http://www.phoenixcontact.com
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## Links
- [View this product on Novapart](https://novapart.co/products/2404301/string-combiner-box-1kv-40a-3x1)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/phoenix-contact/sol-sc-1st-0-dc-3mppt-1001/string-combiner-box-1kv-40a-3x1/dp/3293559)
---
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