The CDS55KVA 55KVA SDEC diesel generator solves one of the most persistent challenges for small and medium enterprises in markets with inconsistent grid supply: sustaining business operations through unplanned outages without inflating site costs or violating local noise codes. Built on the proven SDEC Z-series generator set platform, JIUAN Power configures this low-noise commercial diesel generator for operators who need a low-maintenance, space-efficient power asset deployable directly beside a retail unit, behind a community clinic, or inside a small manufacturing workshop — all while remaining within municipal noise limits.

At the core of this 55KVA SDEC diesel generator is the genuine Shanghai SDEC 4ZT3.5-G21 genset engine, a turbocharged 3.5-litre in-line four-cylinder water-cooled unit rated at 1500RPM. The SDEC 4ZT3.5-G21 generator achieves a factory-verified 54KW standby bench output, providing JIUAN Power engineers with the working headroom to certify the 50KVA/40KW prime rating and 55KVA/44KW standby rating, qualifying the CDS55KVA as ISO8528 certified backup power under internationally recognized test protocols. Its turbocharger and water-to-water intercooler assembly holds full-load specific fuel consumption at a measured 202g/kW·h, delivering tangible annual running-cost savings compared with naturally-aspirated alternatives in the same power band.

JIUAN Power pairs every silent diesel genset 55KVA with a single-bearing all-copper brushless synchronous alternator (Class H insulation, IP23 rating) and a Deepsea DSE6120 controller that tracks 14 live operating parameters including lube oil pressure, coolant temperature, voltage and cumulative runtime. The complete 1100kg assembly leaves JIUAN Power's facility fully built and load-aged: end users connect power cables and a diesel supply line — this 50KVA soundproof generator enters service immediately, with no plant-room construction or on-site commissioning labour required.

① SDEC 4ZT3.5-G21 Genset Core — 12,000-Hour B10 Life and 202g/kW·h Fuel Rate

The SDEC 4ZT3.5-G21 generator engine uses a replaceable wet cylinder liner design and high-strength grey cast iron block that extends B10 service life beyond 12,000 operating hours. Full-load specific fuel consumption of 202g/kW·h reduces annual energy spend for businesses running the 55KVA SDEC diesel generator as a daily prime power source. Genuine Fleetguard filter sets extend standard maintenance intervals to 500 hours, lowering technician call-out frequency and spare-parts expenditure across the service life of the compact silent diesel generator. Cold-start capability is guaranteed at -12°C without preheat; an optional oil pre-heater supports the SDEC Z-series generator set in climates down to -25°C.

② CE and ISO8528 Dual Certification — Export-Ready 55KVA SDEC Diesel Generator

Every CDS55KVA silent diesel genset 55KVA from JIUAN Power delivers ISO8528 certified backup power and carries CE marking — the two compliance credentials most frequently required by power utilities, project specifications and customs authorities across Europe, Southeast Asia, the Middle East and Sub-Saharan Africa. This dual certification status allows distributors and EPC contractors to include the CDS55KVA as a CE-compliant industrial generator in formal tender documents without commissioning additional third-party testing, accelerating project timelines and lowering procurement risk.

③ ≤72dB Soundproof Canopy — Urban-Compliant Low-Noise Commercial Diesel Generator

The soundproof enclosure fitted to this compact silent diesel generator is fabricated from 2.8mm cold-rolled steel with double-layer anti-rust epoxy coating, providing long-term resistance to rain, UV exposure and coastal salt corrosion for permanent outdoor placement. High-density flame-retardant acoustic insulation, a composite exhaust muffler duct and separated intake/exhaust silencing chambers work together to hold measured noise at ≤72dB(A) at 7 metres — within the operational limits of most residential zone noise ordinances across Asia, Africa and the Middle East. A wide single-side maintenance door and transparent inspection window allow filter changes and routine checks without removing the canopy, supporting the low-maintenance profile of the 50KVA soundproof generator.

④ 220L Integrated Base Tank — 8+ Hours of Unattended Runtime

The 220L base-integrated fuel tank on the 55KVA SDEC diesel generator stores sufficient diesel for more than 8 continuous hours of full-load operation, covering overnight retail shifts or extended grid outages without a mid-run refuel stop. JIUAN Power positions an external quick-fill port on the canopy side panel so fuel delivery vehicles can replenish the 50KVA soundproof generator without opening the enclosure or interrupting operation.

⑤ Factory Pre-Wired ATS Bay and Optional 4G Cloud Module for SDEC Z-Series Generator Set

JIUAN Power reserves a dedicated internal bay in every compact silent diesel generator for ATS (automatic transfer switch) installation, enabling seamless grid-to-genset switchover within 3–5 seconds of mains failure. The optional 4G cloud monitoring module streams live data from the SDEC Z-series generator set — including voltage, frequency, oil pressure, coolant temperature and fault codes — to JIUAN Power's fleet management app, giving remote operators 24-hour visibility from any mobile device without on-site attendance. Anti-vibration rubber mounts on the base frame cut mechanical resonance and canopy rattle, and the compact 2200×1000×1560mm footprint of the 55KVA SDEC diesel generator simplifies hoisting, containerised shipping and final-site positioning.

JIUAN Power supplies the CDS55KVA 55KVA SDEC diesel generator to a broad range of operators seeking dependable compact power assets: township retail chains requiring backup cover for refrigeration, POS systems and lighting during grid outages; primary healthcare clinics where the compact silent diesel generator keeps medical instruments and cold-chain storage online; small metals and plastics processing workshops running continuous-duty processes on the 50KVA soundproof generator through scheduled maintenance windows; telecom infrastructure companies deploying the SDEC 4ZT3.5-G21 generator at rural base stations; and international EPC contractors sourcing CE-compliant industrial generator units from the SDEC Z-series for projects across Southeast Asia, Sub-Saharan Africa and the Middle East.

Q: What is the difference between the 50KVA prime rating and the 55KVA standby rating of the CDS55KVA?
A: The 50KVA/40KW prime rating (PRP) is certified for unlimited annual running hours as the main power source — for example, as daily power for a convenience store or small workshop. The 55KVA/44KW standby rating (ESP) applies exclusively during grid failures with a capped annual usage limit; it carries a 10% short overload margin to absorb motor-start inrush currents from water pumps and small compressors. JIUAN Power tests every silent diesel genset 55KVA to deliver both ratings as ISO8528 certified backup power within voltage and frequency tolerances before shipment.

Q: Can the SDEC 4ZT3.5-G21 genset start reliably in cold-climate deployments?
A: The standard SDEC 4ZT3.5-G21 genset engine starts unaided at ambient temperatures down to -12°C. For the compact silent diesel generator deployed in colder environments, JIUAN Power supplies an optional engine oil pre-heater that extends reliable cold-start capability to -25°C, making this low-noise commercial diesel generator suitable for highland and northern-latitude infrastructure projects.

Q: Does JIUAN Power offer OEM and private-label packaging for the SDEC Z-series generator set?
A: Yes. JIUAN Power provides custom model plates, canopy colour options and full documentation packages for the CE-compliant industrial generator line including the CDS55KVA. Distributors marketing the SDEC Z-series generator set under a regional brand can request white-label configurations with a minimum order quantity; contact JIUAN Power's export sales team for OEM programme details.