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jxf distribution box   wall mounted and floor standing lv-0

Low Voltage Main Distribution Board

JXF Distribution Box - Wall-Mounted and Floor-Standing LV

JXF wall-mounted distribution box, 400V/415V to 630A, IP54-IP65, indoor and outdoor. Empty enclosures, fitted boards, CKD kits and drawings.

  • Overview
  • Applications
  • Technical Data
  • Services
  • Quality Control
  • Recommended Products

JXF Distribution Box - Wall-Mounted and Floor-Standing LV Enclosure, IP54 to IP65

JXF is the sheet-steel distribution box that sits at the end of the LV chain: sub-distribution on a floor of a building, a control box beside a machine, a feeder pillar on a site, a pump station panel outdoors. It is not a substation board and it does not pretend to be. It is the highest-volume, fastest-turning product in almost every panel builder's catalogue.


WHY IT MATTERS COMMERCIALLY MORE THAN IT LOOKS

A main board is a project. A JXF is a business. Distributors move them in hundreds, contractors buy them off the shelf, and the customer who buys ten boxes this month buys the main board next year. For a distributor entering the electrical market, this is the product that builds turnover and customer contact while the bigger boards are still being tendered.


THE PROBLEM WITH CHEAP BOXES

Most low-cost distribution boxes fail in the same three places, and every one of them is visible to the end customer. The door gasket is a strip of foam that hardens in a year, so an outdoor box in Nigeria or the Gulf fills with dust and water. The paint is a thin coat over untreated steel, so a coastal installation in the UAE or Mombasa shows rust at the door edge within one season. And the box is a bare shell - no proper DIN rail spacing, no gland plate, no earth stud - so the installer improvises and the result is untidy and unsafe.

We build JXF to the opposite specification: pre-treated and powder-coated steel, one-piece moulded polyurethane gasket, verified IP rating, removable gland plate, and a properly bonded door.


WHAT WE SUPPLY

Empty enclosures for you to fit out, fully fitted boards to your schedule, or flat-packed CKD kits with the sheet-metal drawings so your workshop bends and welds locally and buys only the parts that matter - locks, hinges, handles, gaskets, gland plates, rails and earth hardware. Given that logistics can be a quarter of the landed cost of an imported box, and a box is mostly air, this is the product where local assembly saves the most.


SIZES AND CONSTRUCTION
Standard wall-mounted sizes from 300 x 400 x 200 mm up to 800 x 1000 x 300 mm, and floor-standing versions to 2000 mm high, with custom sizes made to drawing. Cold-rolled steel 1.0 to 2.0 mm, or 304 / 316 stainless steel where the environment demands it - coastal Gulf, desalination plants, food processing and chemical sites.


CONFIGURED FOR THE DESTINATION

415V/240V for Qatar, Kuwait, Oman, Nigeria, Kenya and Tanzania; 400V/230V at 60Hz for Saudi Arabia; 400V/230V at 50Hz for UAE, Iraq, South Africa and Eastern Europe; 380V/220V for Russia and CIS. Outdoor versions for Gulf and African sites are supplied with a sunshade canopy, ventilation with insect mesh, and an anti-condensation heater where the day-night swing causes internal dew.

Typical Applications


PRIMARY APPLICATIONS
- Floor and zone sub-distribution boards in commercial buildings, hotels, hospitals and residential towers.
- Machine control and local isolation boxes in factories and workshops.
- Outdoor feeder pillars and site distribution on construction projects.
- Pump station, borehole and irrigation control boxes.
- Street lighting and area lighting control boxes.
- Telecom shelter, base station and equipment room distribution.
- Solar PV combiner, string and AC distribution boxes.
- Generator changeover and standby supply boxes on African and Middle East sites.
- Water treatment, cold store and warehouse distribution.
- Petrol station, retail unit and free-zone unit supplies.


TYPICAL CONTENTS
Incoming MCCB or isolator, distribution MCBs with RCD or RCBO protection, contactors and timers for lighting or pump duty, indication lamps, metering, terminal blocks and neutral and earth bars.


WHO BUYS THIS FROM US

Electrical distributors carrying stock, panel builders who assemble to order, contractors buying for a specific project, and OEM machine builders who need a branded control box. Volume buyers usually take empty enclosures or kits and fit out locally, because fit-out is where their margin is.


REGIONAL FIT

- Middle East: very high volume in building services and site distribution. Outdoor boxes need genuine IP65, UV-stable gaskets, sunshade and correct derating - internal temperature in direct Gulf sun is far above the IEC +40 C reference. SASO SABER for Saudi Arabia, DEWA and KAHRAMAA submittals supported.
- Africa: dust ingress and coastal corrosion are the two failure modes that decide whether the customer buys again. Powder coat thickness and gasket quality matter more than the price difference. SONCAP applies under HS 8536 for Nigeria, KEBS PVoC for Kenya.
- Russia and CIS: 380V/220V, cold-climate versions with anti-condensation heating, EAC under TR CU 004/2011 and TR CU 020/2011.
- Eastern Europe: 400V, CE marked under LVD and EMC, built to EN 61439-3 for distribution boards intended for operation by ordinary persons where applicable.


NOT SUITABLE FOR

Main incoming distribution above 630A or where a busbar system with short-circuit withstand verification is required - specify GGD or XL-21. Motor control centres - specify GCK. Hazardous areas requiring Ex protection.

Technical Data

TECHNICAL DATA - JXF Distribution Box

Compliance: IEC 61439-1, IEC 61439-3, IEC 60529, GB 7251.3

Category Item Specification
Electrical Ratings Rated operational voltage (Ue) 400 V / 415 V AC (380 V, 230 V single phase available)
Rated insulation voltage (Ui) 690 V
Rated impulse withstand voltage (Uimp) 6 kV
Rated frequency 50 Hz / 60 Hz
Rated current 63 / 100 / 160 / 250 / 400 / 630 A
Rated conditional short-circuit current 10 / 15 / 25 kA
Number of phases 3P+N+PE, or 1P+N+PE
Enclosure Construction Material Cold-rolled steel 1.0 / 1.2 / 1.5 / 2.0 mm
Optional material 304 or 316 stainless steel; aluminium-zinc coated steel
Surface treatment Phosphate pre-treatment, electrostatic powder coating 60–80 µm
Standard colour RAL 7035 light grey (RAL 7032, RAL 9003 and custom available)
Salt spray resistance 500 h standard; 1000 h for coastal specification
Door Single or double, concealed hinge, 120° opening
Gasket One-piece moulded polyurethane, UV stable
Lock Cam lock with key, padlockable hasp or handle with 3-point latch
Gland plate Removable, bottom entry standard; top or rear entry to order
Earthing Door bonded by flexible copper braid; internal PE bar with earth stud
Mounting Wall bracket, pole mount, or floor plinth 100 / 200 mm
Degree of Protection Indoor standard IP54
Outdoor standard IP65
Impact protection IK08 (IK10 available)
Standard Sizes (W×H×D, mm) Wall mounted 300×400×200 | 400×500×200 | 400×600×200 | 500×600×250 | 600×800×250 | 700×900×300 | 800×1000×300
Floor standing 600×1500×400 | 700×1700×400 | 800×2000×400
Custom sizes Manufactured to drawing
Internal Fit-out Mounting plate Galvanised or powder coated, adjustable depth
DIN rail 35 mm, TH35-7.5 or TH35-15
Trunking Slotted PVC wiring duct
Escutcheon Removable, cut for modular devices
Modular device capacity 12 to 144 ways depending on size
Service Conditions Ambient temperature -5 °C to +40 °C standard; -25 °C to +55 °C on request
Relative humidity Up to 95%
Altitude Up to 2000 m
Installation Indoor or outdoor
Outdoor & Climate Options Sunshade canopy For Gulf and African installations
Ventilation louvres With insect mesh and dust filter
Anti-condensation heater With thermostat
Thermostatic fan and filter set Available
Tropicalised coating On internal steelwork
Cold climate version For Russia and CIS

OPTIONS

Stainless steel enclosure | window door with toughened glass | double door
Viewing window for meters | internal LED light with door switch
Pocket for drawings | rain hood over gland plate | anti-tamper fixings
Custom RAL colour and screen-printed branding | CKD kit for local assembly
Services


WE SELL THE CAPABILITY, NOT JUST THE BOX

Most suppliers quote you a finished cabinet. We would rather make you the factory. Over 15 years we have equipped more than 300 partner enterprises in 72 countries to build their own low voltage switchgear locally, using our drawings, our components and our training. If you only want finished cabinets we will supply those too - but read what the alternative saves first.


1. TECHNICAL PACKAGE - GA DRAWINGS AND ENGINEERING

Complete general arrangement drawings, busbar layouts, single-line and schematic diagrams, drilling and cut-out templates, torque tables, BOM with part numbers, and assembly instructions. Drawings are issued in DWG and PDF, dimensioned in millimetres, and revised free of charge for your project variations. Your engineer works from a design that has already been verified, instead of reverse-engineering a competitor's board.


2. COMPONENT SUPPLY - CKD KIT FROM 2,000+ SELF-DEVELOPED PARTS

We manufacture over 2,000 of our own switchgear components and 38+ patents sit behind them. That matters because the parts that decide whether a cabinet passes inspection - busbar supports, insulators, drawer isolating contacts, racking mechanisms, interlocks - are not reliably available on the open market at consistent quality. You buy the kit flat-packed, add local sheet metal and labour, and the freight bill collapses. A South African distributor cut total cost by 40% doing exactly this; logistics alone had been eating 25% of their landed cost.


3. LEAD TIME

Building locally from a kit removes the ocean freight leg from your delivery promise. The same South African partner went from a 3-month lead time to 5 weeks. In markets where the contractor pays liquidated damages for late energisation, that is often worth more than the price difference.


4. TRAINING AND ASSEMBLY SUPPORT

On-site or online training for your assembly team: frame build, busbar bracing and torquing, drawer alignment, Form separation, wiring discipline, routine testing. We also run remote support during your first production batches. An Indonesian client used this route to enter the high-end panel market within 4 months and lifted margin by 35%.


5. OEM AND ODM - YOUR BRAND ON THE DOOR

Nameplate, colour, layout, packaging and documentation to your brand. Non-disclosure agreements and territory protection for distributors who are developing a market. You sell as a manufacturer, not as a re-seller.


6. CERTIFICATION AND SUBMITTAL SUPPORT

Design verification evidence to IEC 61439-1 and IEC 61439-2, type-test reports, material certificates and QC records for your tender submittals. Country routes supported: EAC under TR CU 004/2011 and TR CU 020/2011 for the EAEU, CE under LVD 2014/35/EU and EMC 2014/30/EU to EN 61439 for the EU, SASO SABER PCoC plus per-shipment SCoC for Saudi Arabia, SONCAP for Nigeria under HS 8536, KEBS PVoC Routes A/B/C for Kenya, and utility submittals for DEWA, KAHRAMAA, MEW, Oman DCRP and ICIGI.


7. AFTER-SALES AND SPARES

Technical response within 24 hours. Spare parts kept to the same drawing revision for the life of the design, so a drawer bought in year one still fits a cabinet built in year five. Warranty 12 months from commissioning or 18 months from shipment.


8. COMMERCIAL TERMS

FOB, CFR, CIF, DDP and Ex-Works. Consolidated container loading with mixed products. Trade Assurance, T/T and L/C at sight. Sample and pilot batch orders accepted before you commit to volume.

Quality Control

QUALITY CONTROL - VERIFIED ASSEMBLY, NOT A FOLDER OF COMPONENT CERTIFICATES

The most common reason a low voltage board is rejected on site is not a faulty breaker. It is that the assembly itself was never verified. IEC 61439 verifies the complete assembly - enclosure, busbar system, internal separation, temperature rise, short-circuit withstand and IP rating, together. A cabinet fitted with certified devices is not automatically a verified assembly, and inspectors in our markets increasingly know the difference.


DESIGN VERIFICATION - IEC 61439-1 AND -2

Strength of materials and parts, degree of protection, clearance and creepage distances, protection against electric shock and integrity of the protective circuit, incorporation of switching devices and components, internal electrical circuits and connections, terminals for external conductors, dielectric properties, temperature-rise limits, short-circuit withstand strength, and electromagnetic compatibility. Verification evidence is issued for the assembly as built and supplied for your tender submittal.


ROUTINE VERIFICATION - EVERY CABINET, BEFORE IT SHIPS

1. Enclosure inspection - dimensions, squareness, door alignment and gap, panel flatness, weld and bolt integrity.
2. Coating - pre-treatment, powder coat thickness measured, adhesion cross-hatch test, RAL colour verification, salt spray on batch samples.
3. Busbar system - phase sequence and colour identification, bar section and spacing against drawing, insulator and holder installation, every joint torqued to specification and marked.
4. Protective circuit continuity - PE bar and door bonding tested at the specified test current, resistance recorded.
5. Wiring - against the schematic, terminal tightness, ferrule and labelling check, bending radius and segregation of power and control.
6. Dielectric test - power-frequency withstand for one minute at the rated test voltage, insulation resistance measured and recorded.
7. Functional test - protection, interlocks, indication, metering, control logic and, where fitted, communication.
8. Degree of protection - gasket continuity, cable gland plates, door seal compression; IP verification per the stated rating.
9. Final inspection - nameplate data, circuit labelling, drawing pack, spare parts, tidiness, packing.


WHAT YOU RECEIVE

Routine test certificate, design verification evidence, inspection checklist with the tester's mark, material and coating certificates, device certificates, GA and schematic drawings as-built, and the operation and maintenance manual.

INDEPENDENT AND WITNESSED TESTING
Witnessed factory acceptance testing available for EPC and utility projects; this is a standard requirement on Saudi SEC work. Third-party inspection by SGS, BV, TUV or Intertek accepted and coordinated at the buyer's request. Pre-shipment inspection reports with photographs are issued for every order.


MANAGEMENT SYSTEM

ISO 9001 quality management. Incoming material inspection with certificate traceability, in-process inspection at frame, busbar and wiring stages, and final inspection before packing. Non-conformances are recorded, root-caused and closed - a discipline that matters more than any single certificate.

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