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The VH-4046 is the surge-hardened premium variant in HI-SUN’s British-standard rack PDU lineup, purpose-built for 19-inch server, CCTV and critical infrastructure cabinets across the UK and Hong Kong. It comes factory-integrated with an SPD surge suppression module, 6 BS1363 shuttered earthed outlets and a front-panel illuminated master switch, delivering out-of-the-box transient voltage protection for downstream IT hardware against lightning surges and grid switching fluctuations.Ideal for surge-prone locations and 24/7 always-on critical loads, it enables full-bank power shutdown via the front switch for routine maintenance. Built on the universal hot-swap modular platform, it supports additional field upgrades including resettable overload breakers, digital metering and dual USB charging to match evolving site requirements. Rated for 13A / 3250W at 220–250VAC and fully certified to UKCA, CE and RoHS standards, it is the go-to surge-integrated option for British commercial, municipal and security cabinet deployments.
1. Factory-Calibrated Integrated SPD Surge Protection
Unlike base PDUs that require separate surge accessory purchase and on-site installation, this model includes a factory-fitted SPD surge suppression module as standard. Factory calibration ensures consistent clamping performance and occupies no extra module bay space, delivering out-of-the-box protection against lightning-induced transients and grid surges. It directly reduces failure risk for high-value servers, CCTV recorders and network hardware in thunder-prone regions across the UK.
2. Operator-Friendly Front Illuminated Master Switch
The backlit main power toggle is positioned for easy front access within densely packed racks. The bright status indicator remains visible from across the equipment room, allowing at-a-glance power verification before maintenance work. It enables one-touch full-bank isolation for servicing, eliminating the need to trace cables to wall outlets in congested British-style server closets.
3. Dual-Safety BS1363 Shuttered Receptacles
Six BS1363-compliant earthed outlets with integrated safety shutters deliver native compatibility with British standard plugs, eliminating bulky adapters and loose connection risks. Paired with the built-in surge protection circuit, it creates a dual-layer electrical safety barrier that meets the higher compliance requirements of public sector, education and healthcare facility projects.
4. Thermally Optimized One-Piece Aluminum Chassis
The single-piece extruded aluminum housing is thermally tuned for the built-in surge module, dissipating heat generated during surge events and continuous operation far more effectively than steel housings. Lower steady-state temperatures extend SPD component service life, while the lighter unit weight reduces static load on cabinet mounting rails. The matte silver finish also blends seamlessly with standard British server cabinet interiors.
5. Surge-Based Layered Modular Expandability
On top of the factory-standard surge protection, reserved modular bays allow on-site addition of overcurrent breakers, digital power meters, leakage protection or USB charging modules at any time. This layered upgrade path lets organizations start with baseline surge safety and add more functions as needs evolve, without replacing the entire PDU unit.
6. Full UKCA Compliance for High-Standard Tenders
Certified to UKCA, CE and RoHS standards and fully compliant with BS1363 socket specifications, it meets the strict qualification requirements of British municipal, transport and security project tenders that mandate both socket compliance and surge protection. It eliminates compliance gaps common with generic unprotected PDUs in regulated project bids.
| Item | Detailed Description |
| Model | VH-4046 |
| Form Factor | 1U horizontal rack-mount, 19" EIA standard |
| Standard Protection | Factory-integrated SPD surge suppression module |
| Socket Standard | BS1363 UK shuttered earthed receptacle, 13A |
| Output Sockets | 6 × BS1363 outlets |
| Input Connection | 2-metre UK-approved BS1363 power cord; custom length / IEC C14 inlet optional |
| Control | Front-panel illuminated master power switch |
| Rated Voltage | 220–250VAC 50Hz |
| Max Rated Current | 13A aggregate |
| Max Power Output | 3250W |
| Housing Material | Extruded aluminum alloy |
| Finish | Matte silver |
| Product Size | L×W×H=482.6×45×45mm |
| Mounting Length | 462.4mm |
| Case Length | 431mm |
| Mounting Hardware | M6 mounting bolts, lock washers, adjustable brackets, user manual |
| Certifications | UKCA, CE, RoHS, BS1363 compliant |
• Resettable overcurrent circuit breaker
• Digital ammeter / volt-ampere dual-display meter
• Leakage protection module
• Dual-USB 5V 1A/2A charging module
• RS485 multi-parameter voltage-current-temperature-humidity monitor
• Thunder-prone area server rooms & critical IT infrastructure
• 24/7 CCTV & security surveillance recording systems
• Municipal traffic & street lighting control cabinets
• Healthcare & education facility critical power loads
• Hong Kong BS1363-standard data & communication cabinets
• High-compliance public sector project deployments
| Item | Details |
| Minimum Order | 1 unit |
| Customization | Cable length, OEM silk-screen logo, pre-fitted additional modules (bulk orders) |
| Production Capacity | 300 units / month |
| Lead Time | 7–15 working days for standard units; 20–30 days for custom configurations |
| Packing | Standard export carton |
| Trade Terms | FOB, CFR, CIF, EXW |
Q: What is the main difference between VH-4046 and VH-4041 British PDUs?
A: VH-4041 is the base switched model with a master switch but no built-in surge protection, designed for general office and low-risk indoor environments. VH-4046 comes factory-integrated with an SPD surge suppression module as standard, making it the premium choice for thunder-prone areas, 24/7 critical loads and projects that mandate surge protection.
Q: What level of surge protection does this PDU provide?
A: The factory-fitted SPD module clamps transient overvoltage and dissipates surge energy from lightning strikes and grid fluctuations. Detailed surge current rating specifications are available on request for project compliance documentation.
Q: Can I add more protection or metering modules later?
A: The factory SPD is the primary surge protection stage. Additional modules such as overload breakers, digital metering and leakage protection can be installed on-site at any time via the hot-swap modular bays, without replacing the entire PDU.
Q: Does this meet UK tender requirements for surge-protected power distribution?
A: Yes. It carries formal UKCA marking, complies with BS1363 socket standards and includes factory-integrated surge protection, meeting typical qualification criteria for British public sector, municipal and security project tenders.
Q: Will this fit standard 19-inch server cabinets used in the UK?
A: Yes. It is built to EIA 19-inch rack standards with adjustable side mounting brackets, supporting both forward and reversed installation to match both front-feed and rear-feed cabinet wiring conventions common in the UK.
