Suntree SHLX-PV2/1 DC 2 Way 1 Output DC Combiner Box 1000V 20A Fuse 32A Isolation Switch

The Suntree SHLX-PV2/1 DC Combiner Box is a compact photovoltaic string protection and distribution unit designed for small to medium solar PV systems. It combines 2 DC input strings into 1 output, providing essential protection, isolation, and safety control for solar power systems up to 1000V DC.

This combiner box integrates key protective components such as DC fuses, surge protection device (SPD), and isolation switch, ensuring safe and stable operation of solar installations in residential, commercial, and off-grid applications—particularly suited for Tanzania’s growing solar market.

Features & Benefits

• 2-in-1 DC input to single output design: Combines two PV strings efficiently, simplifying solar system wiring and reducing installation complexity.
• Compact and space-saving structure: Easy to install in tight spaces, suitable for residential and small commercial solar systems.
• IP65 protection rating for outdoor use: Fully dust-protected and resistant to water jets, ensuring reliable operation in harsh outdoor environments.
• Integrated DC fuses (20A protection): Protects solar panels and inverter from overcurrent and short-circuit faults.
• 32A DC isolation switch included: Enables safe manual disconnection of PV system during maintenance or emergency shutdown.
• Built-in surge protection device (SPD): Shields system components from lightning-induced voltage spikes and electrical surges.
• Factory pre-wired internal configuration: Reduces installation time, wiring errors, and labour costs for solar technicians.
• Comprehensive system protection design: Ensures safe operation and extends the lifespan of inverter and PV components.
• Rated for 1000V DC systems: Compatible with modern high-voltage solar installations for improved efficiency.
• Durable industrial-grade enclosure: Designed for long-term performance in heat, dust, and humid conditions.
• Improved system safety and reliability: Minimises risk of electrical faults and enhances overall PV system stability.
• Reduces maintenance requirements: High-quality components ensure long service life with minimal servicing needs.
• Supports organised and clean wiring layout: Centralised combiner box structure reduces cable clutter and improves system management.
• Quick and easy installation process: Pre-assembled design helps solar installers complete projects faster.
• Ideal for harsh climate conditions like Tanzania: Performs reliably under high temperatures, humidity, dust, and seasonal rainfall.

Use Cases

• Residential rooftop solar systems: Combines and protects PV strings in home solar installations for safe and stable energy supply.
• Small commercial solar installations: Ideal for shops, offices, and small business buildings using 2-string PV systems.
• Off-grid solar systems in rural Tanzania: Provides reliable DC protection for standalone solar setups in villages and remote areas.
• Hybrid inverter solar systems: Ensures safe DC input management for battery-based backup and hybrid energy systems.
• Solar water pumping systems: Used in agricultural irrigation and borehole pumping installations for system protection.
• Telecommunication tower solar backup systems: Supports stable solar power input for remote telecom infrastructure.
• NGO and donor-funded electrification projects: Suitable for rural clinics, schools, and community solar energy programs.
• Solar EPC contractor installations: Commonly used by installers for structured PV system protection and standardisation.
• Agricultural solar energy systems: Supports farm energy needs such as irrigation, lighting, and processing equipment.
• Backup power systems for small industries: Protects solar input in manufacturing units and light industrial operations.
• Public infrastructure solar projects: Used in street lighting and public service solar installations requiring DC protection.
• Remote communication and monitoring stations: Ensures reliable solar power supply in isolated monitoring and control systems.
• Educational and training solar labs: Suitable for technical institutes and renewable energy training centres in Tanzania.
• Small-scale solar expansion projects: Enables safe scaling of existing PV systems with additional strings.

Value Propositions

• All-in-one PV protection unit: Integrates fusing, surge protection, and isolation switch in a single compact enclosure, reducing system complexity.
• Enhances solar system safety: Protects against overcurrent, short-circuit faults, and lightning-induced surges.
• Improves system reliability and uptime: Stable DC distribution reduces risk of inverter and panel failure.
• Reduces installation time and labour cost: Factory pre-wired design simplifies setup for solar installers.
• Supports clean and organised wiring layout: Centralised combining of PV strings reduces cable clutter and improves system management.
• Compact design saves installation space: Ideal for residential rooftops and small commercial installations with limited space.
• High compatibility with modern solar systems: Works with 1000V DC photovoltaic systems used in contemporary solar installations.
• Built for harsh outdoor environments: IP65 protection ensures reliable performance in dust, rain, and high humidity conditions.
• Minimises maintenance requirements: Durable components reduce servicing frequency and long-term operational costs.
• Improves equipment lifespan: Protects inverters and PV modules from electrical stress and damage.
• Cost-effective system protection solution: Eliminates the need for multiple separate protection devices.
• Supports scalable solar system design: Ideal for expanding small solar systems efficiently and safely.
• Reliable for unstable or remote grid conditions: Ensures safe operation in off-grid and hybrid solar systems.
• Ideal for professional EPC solar projects: Meets standard safety requirements for structured solar installations.
• Well-suited for Tanzania’s climate conditions: Performs reliably in heat, dust, and seasonal heavy rainfall environments.

Local Market Positioning in Tanzania

• Essential component for small to medium solar PV systems: Widely used in residential rooftops, small businesses, and rural solar installations across Tanzania.
• Strong demand in Tanzania’s growing solar energy sector: Supports increasing adoption of solar power in both urban and off-grid regions.
• Ideal for residential and small commercial installations: Best suited for 2-string PV systems commonly used in homes, shops, and offices.
• Highly relevant for off-grid rural electrification projects: Commonly deployed in villages, schools, clinics, and agricultural solar systems.
• Suitable for Tanzania’s harsh environmental conditions: IP65 protection ensures reliable operation in dust, heat, and heavy rainfall environments typical of East Africa.
• Preferred by local solar EPC contractors and installers: Pre-wired compact design reduces installation time and simplifies field deployment.
• Cost-effective alternative for basic DC protection systems: Provides integrated fusing, isolation, and surge protection in a single unit.
• Supports Tanzania’s solar expansion and energy access goals: Aligns with national efforts to expand renewable energy and reduce grid dependency.
• Ideal for hybrid and inverter-based solar systems: Ensures safe DC input management for battery-backed and grid-tied installations.
• Widely applicable in donor-funded and NGO solar projects: Suitable for rural electrification, education, and healthcare infrastructure.
• Fits small-scale solar market segment (1–10 kW systems): Positioned for the most common solar installation size in Tanzania.
• Helps improve system safety and reliability standards: Protects against overcurrent and surge damage in unstable power environments.
• Growing adoption in commercial rooftop solar installations: Increasingly used in shops, warehouses, and small industrial facilities.
• Competitive entry-level combiner box solution: Offers essential protection features at affordable pricing for local markets.
• Supports expansion of decentralized solar systems: Enables scalable solar growth in both urban and rural Tanzania.

Technical Specification