Solar Switchgear Housings

Centralized electrical protection and distribution equipment in solar installations demands robust enclosures that safeguard circuit breakers, disconnects, and metering systems from environmental extremes. Solar Switchgear Housings provide arc-rated protection for medium-voltage and low-voltage switching equipment managing power flow between arrays, inverters, and grid interconnection points. 
HY D R O L Y SIS RESIS T ANCE
Material & Grade
  • Cold Rolled Steel (CRS) – SPCC
  • Galvanized Steel – SGCC 
  • Stainless Steel – SS304, SS316
  • Aluminum Sheet – 5052, 6061
  • Sheet thickness: Up to 3.0mm capable
  • Maximum capable: 2200mm (H) x 1500mm (W) x 800mm (D) 
  • Custom sizes available per switchgear configuration
  • Powder Coating – RAL 9005, RAL 7035, Custom RAL colors
  • Thickness: 80-120 microns (outdoor grade)
  • Hot-Dip Galvanizing + Powder Coating
  • Marine-grade epoxy coating
  • UV-resistant finish
  • CNC Laser Cutting
  • CNC Punching & Bending 
  • TIG/MIG Welding
  • CNC Press Brake Forming
  • Seam welding for weatherproofing
  • Gasket groove forming
  • Stainless Steel 304/316 Hardware
  • Weather-sealed hinges 
  • Multi-point locking systems  
  • Grounding lugs & busbars  
  • DIN rail mounting provisions
  • Arc-resistant fasteners

Product Description

These ground-mount or wall-mount structures accommodate switchgear assemblies with internal volumes reaching 2200mm height and thermal loads up to 10kW. Frigate engineers IP65-rated enclosures with compartmentalized cable entry zones, arc flash-rated doors, and forced ventilation systems. 

Mounting Type
  • Ground/Pad Mount with base frame
  • Wall Mount (smaller units)
  • Concrete foundation anchoring
  • Skid-mounted configurations
  • Leveling feet adjustable
  • Seismic mounting provisions 
  • Standard: IP54 (dust/splash protected)
  • Enhanced: IP55 (dust/water jet protected)
  • Premium: IP65 (dust-tight/water jet protected)
  • IP66 available for coastal installations
  • Cable glands: M25, M32, M40, M50, M63, M75
  • Bottom/Top entry configurations
  • Separate DC and AC cable compartments
  • Strain relief and cable management
  • Conduit knockout sizes: 32mm to 100mm
  • Fire-rated cable penetrations
  • Single or Double door configurations
  • 180° door opening with hold-open mechanism
  • Removable panels for equipment installation
  • Transparent viewing windows
  • Tool-required access with padlock provisions
  • Arc flash protection rated doors
  • Natural convection with ventilation louvers
  • Forced air cooling with fan systems
  • Heat exchanger provisions
  • Air conditioning compatible (large enclosures)  
  • Operating Temperature: -40°C to +60°C
  • Heat dissipation: Up to 10kW capable 
  • IEC 61439 (Low-voltage Switchgear Assemblies)
  • IEC 60529 (IP Rating)
  • UL 891 (Switchboards)
  • NEC 690 Compliant (PV Systems)
  • Arc flash tested (NFPA 70E)
  • CE Marked
  • RoHS Compliant
  • ISO 9001:2015 Manufacturing 

Technical Advantages

Internal arc fault events generate pressures exceeding 10 bar and temperatures reaching 20,000°C within milliseconds of initiation. Frigate fabricates switchgear housings with arc-resistant construction per IEC 61641 standards, incorporating pressure relief vents that direct plasma away from personnel zones. 

Cable entry compartments maintain physical separation between incoming DC strings and outgoing AC feeders through fire-rated partition walls. Grounding busbars sized for 50kA fault currents provide low-impedance paths that rapidly clear ground faults before equipment damage occurs. Additionally, door interlocks prevent access to energized compartments until isolation procedures complete, protecting maintenance personnel from shock hazards. 

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Industry Applications

Utility-Scale Solar Substations

Houses medium-voltage switchgear and transformer protection equipment at generation facilities connecting multi-megawatt arrays to transmission infrastructure. 

Commercial Solar Installations

Protects main service disconnect switches and metering equipment in rooftop systems requiring utility-accessible isolation points separate from building panels. 

Solar Farm Collector Systems

Consolidates circuit protection for multiple inverter outputs before combining into plant-level AC collection buses feeding step-up transformers. 

Hybrid Solar-Storage Projects

Integrates bidirectional switchgear managing power flow between PV generation, battery systems, and grid connection points during charge-discharge cycles. 

Agricultural Solar Pumping Stations

Secures motor control centers and VFD switchgear in remote irrigation installations where equipment protects pump motors from electrical faults. 

Microgrid Interconnection Points

Manages automatic transfer switching between solar generation, diesel backup, and utility grid supplies in islanded distribution networks. 

Solar Switchgear Housings

Configured Protection for Grid-Tied Systems

Voltage levels, short-circuit ratings,and protection coordination requirements differ dramatically between residential and utility-scale deployments. Our Solar Switchgear Housings arrive in modular configurations with internal mounting provisions accommodating breakers from 100A to 6300A frame sizes. 

Frigate supplies complete installation packages including foundation anchor templates, cable gland assortments for conductors up to 500 MCM, and thermostat-controlled ventilation systems. Stainless steel construction withstands coastal salt spray exposure, ensuring switchgear protection persists throughout the plant’s operational timeline without premature enclosure degradation. 

Solar Switchgear Housings

Having Doubts? Our FAQ

Check all our Frequently Asked Questions

How does arc flash protection in Solar Switchgear Housings safeguard personnel during fault events?

Arc flash incidents release extreme thermal energy that can cause severe burns to nearby workers within milliseconds. Frigate engineers pressure relief vents positioned at housing tops that redirect plasma and gases upward away from ground-level personnel zones. Arc-resistant doors with reinforced latching mechanisms prevent violent opening during internal pressure surges. Subsequently, housing construction meets IEC 61641 Type 2 specifications, ensuring external surfaces remain safe to touch during internal arc events. 

What cable compartmentalization strategies does Frigate employ in Solar Switchgear Housings?

Frigate incorporates physical barriers separating DC input cables from AC output conductors preventing cross-contamination during installation or maintenance: 

  • Bottom DC entry zones: Isolated chambers for incoming solar array strings with dedicated grounding provisions 
  • Side AC exit zones: Separate compartments for outgoing grid connection cables with EMI shielding 
  • Control wiring channels: Segregated pathways for low-voltage monitoring and SCADA communications 
  • Fire-rated barriers: Metal partitions with intumescent seals preventing flame propagation between cable zones 

This separation enhances safety and simplifies troubleshooting during service procedures. 

Can Solar Switchgear Housings accommodate both air-insulated and gas-insulated switchgear?

Air-insulated switchgear requires larger enclosure volumes and ventilation provisions compared to compact SF6 gas-insulated equipment. Frigate manufactures housings with adjustable internal mounting rails accepting both technologies without structural modifications. Air-insulated installations receive enhanced ventilation louvers maintaining safe internal temperatures during switching operations. Conversely, gas-insulated equipment benefits from smaller footprints but demands leak detection provisions per environmental regulations.

How does Frigate address thermal management in Solar Switchgear Housings containing high-current equipment?

High-current busbars and circuit breakers generate significant I²R losses requiring active cooling in sealed outdoor enclosures. Frigate calculates heat loads based on continuous current ratings and incorporates thermostat-controlled fans activating when internal temperatures exceed 40°C. Aluminum busbars provide lower resistance compared to copper alternatives, reducing thermal generation at connection interfaces. Additionally, ventilation systems include dust filtration preventing particulate accumulation on electrical contacts that increases resistance over time. 

What grounding and bonding requirements does Frigate address in Solar Switchgear Housing designs?

Proper grounding ensures fault currents return safely to source preventing voltage rise on enclosure surfaces. Frigate installs main grounding busbars rated for maximum available fault current at the installation location, typically 25kA to 50kA. Equipment bonding conductors connect all metallic components including doors, removable panels, and cable glands to this central busbar. Furthermore, exothermic welding provisions allow permanent ground electrode connections for lightning protection systems integration. 

How does door configuration selection impact operational safety in Solar Switchgear Housings?

Single-door designs suit smaller switchgear requiring front-access maintenance with limited internal component density. Double-door configurations provide walk-in access for large assemblies containing multiple breaker sections and metering equipment. Frigate engineers doors with multi-point latching systems distributing sealing pressure evenly across gasket perimeters maintaining IP ratings. Moreover, transparent polycarbonate windows allow visual verification of disconnect switch positions without opening doors during switching procedures. 

Can Frigate integrate remote monitoring systems within Solar Switchgear Housings?

Modern solar plants require real-time switchgear status monitoring for predictive maintenance and rapid fault response. Frigate provisions mounting space for SCADA terminals, cellular gateways, and auxiliary power supplies on separate DIN rails. Communication cable entries include EMC-rated glands preventing conducted interference from affecting monitoring signal integrity. Additionally, internal antenna mounting provisions support wireless monitoring in remote installations lacking fiber optic infrastructure. 

What seismic protection features does Frigate incorporate for Solar Switchgear Housings in earthquake zones?

Seismic activity generates horizontal accelerations that can topple heavy switchgear assemblies or damage busbar connections. Frigate designs base frames with anchor bolt patterns meeting seismic Zone 4 requirements, distributing lateral forces across foundation interfaces: 

  • Reinforced mounting rails: Heavier gauge steel preventing equipment displacement during seismic events 
  • Flexible busbar connections: Expansion joints accommodating relative movement between fixed and sliding components 
  • Shock isolation mounts: Elastomeric dampers reducing peak acceleration transmission to sensitive electronics 
  • Seismic certification: Shake table testing per IEEE 693 validating structural integrity under earthquake profiles 

These features prevent catastrophic failures during seismic events. 

How does Frigate validate IP rating claims for large Solar Switchgear Housings?

Large multi-compartment housings present sealing challenges at numerous doorpanel, and cable entry interfaces. Frigate conducts water jet testing on fully assembled enclosures with all penetrations installed simulating field conditions. Test protocols apply 12.5 liters per minute from multiple angles simultaneously for 15-minute durations per IEC 60529. Subsequently, internal inspection confirms zero moisture infiltration around cable glands, ventilation louvers, or door seals validating IP65 performance. 

What material selection criteria determine Solar Switchgear Housing specifications for coastal installations?

Coastal environments accelerate corrosion through salt fog exposure and high humidity levels shortening standard enclosure lifespans. Frigate specifies stainless steel grade SS316 for housings located within 5 kilometers of coastlines where chloride concentrations are highest. Hot-dip galvanizing followed by marine-grade epoxy coating provides cost-effective alternatives for inland locations with moderate corrosion risk. All external hardware uses A4-grade stainless steel preventing rust staining and seized fasteners during maintenance procedures decades after installation. 

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LOCATIONS

Registered Office

10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.

Operations Office

9/1, Poonthottam Nagar, Ramanandha Nagar, Saravanampatti, Coimbatore-641035, Tamil Nadu, India. ㅤ

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LOCATIONS

Registered Office

10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.

Other Locations

GENERAL ENQUIRIES

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