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Developed for cross‑border sites exposed to lightning strikes and unstable mains supply, VH‑4091 is a 1U rack‑mount power distribution unit with factory‑integrated surge‑suppression SPD hardware, built upon the global multi‑national modular socket framework. The pre‑fitted surge‑absorbing assembly diverts lightning‑inductive surges and grid‑born voltage spikes right out‑of‑box, shielding costly rack‑mounted IT hardware without aftermarket component fitting. Buyers may pick target‑country socket modules at order time to fit European, African, American and other regional plug standards. It retains hot‑swap expandable slots, allowing later addition of master control switches, over‑current trip units, digital read‑out meters and USB charging peripherals. Holding CE & RoHS international credentials, this surge‑ready PDU fits multinational field sites, remote export‑oriented cabinet projects and locations suffering frequent mains fluctuation.
1.Factory‑embedded Surge‑suppression SPD Hardware
Built‑in surge‑absorbing assembly dissipates lightning‑induced transients and sudden grid‑voltage surges. Delivers instant transient‑shock defence without buying and fitting separate surge modules, lowering deployment lead‑time for surge‑prone overseas locations.
2. Order‑time Selectable Multi‑national Socket Modules
Pick dedicated socket modules matching deployment territory (German Schuko, French Type‑E, Italian CEI, Danish SB, South‑African SANS, US NEMA and more). Native‑grade plug compatibility removes poorly‑fitted universal‑socket risks.
3. Hot‑swap‑enabled Expandable Platform
Vacant functional slots support live‑site hardware enhancement. Main power toggle, over‑current trip devices, digital measuring panels and USB charging units can be retrofitted without discarding the whole PDU main body.
4. EIA‑aligned 1U Rack‑optimized Form Factor
Strict 1U physical dimension fits nearly all 19‑inch server‑grade racks used globally, conserving scarce vertical cabinet space for multi‑device hardware stacks.
5. World‑wide‑accepted Safety Qualifications
CE and RoHS approvals simplify customs clearance and project tender requirements for cross‑border commercial & industrial assignments.
6. Diversified Installation Accessory Set
Complete TP‑series bracket portfolio supports horizontal rack mounting, vertical wall‑fix and special‑shape cabinet assembly, coping with complex physical conditions at overseas field sites.
Compared with VH‑4089 (base blank‑module international PDU) & VH‑4090 (pre‑installed switch‑overload variant):
1.Out‑of‑box surge immunity: VH‑4091 ships with factory‑integrated SPD surge hardware. VH‑4089 has zero pre‑mounted functional modules; VH‑4090 comes with switch + overload protection only. VH‑4091 targets sites troubled by thunderstorms and unstable grid quality.
2. Site‑risk‑oriented configuration logic: VH‑4089 serves full‑custom large‑scale projects; VH‑4090 serves regular office‑type global roll‑outs; VH‑4091 focuses on remote overseas locations where lightning and mains fluctuation represent major hardware‑failure threats.
Compared with generic international‑spec PDUs from competitors:
1.Integrated SPD + genuine national‑standard sockets: Many rival universal PDUs either skip surge hardware or adopt loose‑fit multi‑purpose sockets. VH‑4091 combines factory surge defence plus country‑specific dedicated socket modules.
2. Incremental upgradable hot‑swap architecture: Most competing global PDUs adopt fixed‑circuit non‑modular construction. VH‑4091 allows adding control / metering parts later, cutting long‑range overseas equipment replacement logistics cost.
3. Rich mounting bracket assortment: Plenty third‑party products only deliver basic simple mounting lugs; full TP‑series adjustable brackets are supplied for tricky on‑site cabinet layouts.
• Remote multinational field cabinet deployments in thunder‑prone overseas territories
• Export‑oriented pre‑built cabinet projects located within grid‑fluctuation‑heavy regions
• Overseas edge‑computing & telecom cabinet installations far from central power infrastructure
• International system‑integrator tender projects with mandatory lightning‑surge protection requirements
• Overseas branch industrial equipment rooms exposed to frequent atmospheric electrical activity
• Mixed‑hardware overseas IT facilities deploying devices sourced from multiple countries
• DY‑10 SPD surge‑suppression unit: nominal discharge 20kA, max discharge 40kA for transient‑spike mitigation
• Available standards: German Schuko, French Type‑E, Italian CEI, Danish SB, South‑African SANS, US NEMA, UK BS etc.
• Electrical ratings:10A /13A /16A @250VAC
1. Control Components: LED power indicators, resettable overload protectors, main master switches, 1‑pole/2‑pole/3‑pole miniature circuit‑breakers (1A‑60A)
2. Extra‑safety Components: Residual‑current leakage protectors, higher‑grade SPD variants with EMI‑filter & LED condition signalling
3. Measuring Components: Stand‑alone ammeters, combined volt‑ampere read‑out panels, hot‑swap capable measuring hardware
4. Auxiliary Peripherals: RJ11/RJ45 signal filters, RJ45 communication port, dual‑USB 5V charging hardware, MT RS485 multi‑parameter monitor
5. Mounting Hardware: Full TP‑series adjustable metal brackets, TP‑018 bolt‑and‑cage‑nut complete fastener kit.
Q1: What differentiates VH‑4091 from VH‑4089 and VH‑4090?
A: VH‑4089 is blank‑base model with zero pre‑installed modules for fully custom projects; VH‑4090 has factory‑built master‑switch plus overload protection for regular office‑grade global deployments; VH‑4091 is fitted with factory‑integrated SPD surge‑suppression hardware, dedicated for lightning‑prone and grid‑unstable overseas locations. All three support configurable multi‑national socket modules.
Q2: Can I add main switch or overload protector onto VH‑4091 later?
A: Yes. Thanks to hot‑swap modular slots, KP‑series switch modules or GZ‑series overload protectors can be installed on‑site, without replacing the whole PDU main housing.
Q3: Can I pick socket standard matching my target country?
A: Yes. Multiple national‑standard socket modules are selectable at order phase to fit deployment‑region plug norms.
Q4: What surge‑handling capacity does the pre‑installed SPD deliver?
A: The built‑in DY‑10 SPD reaches 20kA nominal discharge current and 40kA maximum discharge current, handling lightning‑induced transients and utility‑grid voltage spikes.
Q5: Which rack standard does VH‑4091 comply with?
A: It observes EIA 19‑inch 1U global rack specification, compatible with mainstream server & network cabinets used across worldwide markets.
Q6: Are custom‑length cables and OEM logo‑printing supported?
A: Yes, custom power‑cord dimension and OEM silkscreen branding are available for MOQ bulk‑project orders. Contact sales team to hand over detailed specifications.
