Cummins NTA Series 250kVA-450kVA Open Frame Diesel Generator for Building Construction & Temporary Power

Product Overview

The WOPUSAI Cummins NTA series 250kVA‑450kVA diesel generator set adopts genuine Cummins NTA855 series inline 6-cylinder water-cooled heavy-duty industrial diesel engine, matched with Foshan Stanford TFW brushless all-copper synchronous alternator. This reliable medium & large power genset provides stable prime power for continuous operation and mission-critical emergency backup applications. Equipped with turbocharged intercooled air intake and mature direct injection fuel system, the unit delivers excellent load impact resistance and long-term operational stability. The compact yet rugged open-frame structure leaves enough room for on-site modification and auxiliary fitting, widely chosen for factories, commercial complexes, hospitals, construction projects, mines and industrial park standby power supply.

Product Showcase

Complete open-frame genset assembly, Cummins NTA855 series diesel engine unit, TFW brushless all-copper alternator, industrial heavy-duty control cabinet, full piping assembly and high-efficiency water cooling radiator.

Key Specifications

Core Advantages

1. Genuine Cummins NTA855 Heavy‑Duty Industrial Powertrain The Cummins NTA855 14L inline 6-cylinder engine is a classic proven workhorse for medium-to-large power generator applications. Turbocharged intercooled design offers stable power output and good heat dissipation performance. The robust cast iron cylinder block is built for long hours of heavy-duty continuous operation. Its simple and reliable direct injection fuel system reduces failure rates, facilitates routine maintenance, and is fully backed by Cummins global spare parts service network.
2. Foshan Stanford TFW Brushless All‑Copper Alternator Brushless excitation removes carbon brush wear and related breakdown risks, lowering maintenance workload for 24-hour standby power projects. 100% pure copper winding ensures outstanding heat dissipation and strong overload capacity. The built-in high-precision AVR automatically stabilizes voltage output, protecting production equipment, medical instruments and commercial electrical loads. H-class insulation and IP23 protection level enable steady operation in dusty and humid working environments.
3. High Precision Electronic Speed Governing System Electronic governor reacts quickly to sudden load changes, keeping constant rotating speed and stable output frequency. Optimized fuel injection structure cuts carbon accumulation and extends engine overhaul cycles. The DC24V heavy-duty electric starting system ensures reliable startup under variable ambient temperature conditions.
4. Heavy‑duty Integrated Welded Base & Convenient Maintenance Layout High-strength welded base supports the genset weight and effectively absorbs mechanical vibration. Oil filling ports, filter groups and inspection hatches are arranged reasonably for fast on-site inspection and spare parts replacement. Every finished unit will complete strict full-load aging testing before shipment to verify all mechanical and electrical performance parameters.
5. Diversified Customization For Industrial & Commercial Projects The open-frame design reserves sufficient space for auxiliary accessories. Optional upgrades include silent canopy, ATS automatic transfer cabinet, remote cloud monitoring module and extended fuel tank. It meets flexible power requirements for factories, hospitals, shopping malls, construction sites and mining projects.

🎯 Application Scenarios

‑ Manufacturing factories, production workshop standby power supply ‑ Hospitals, shopping malls, commercial complex emergency backup power ‑ Construction sites, temporary engineering field power supply ‑ Medium-sized mines, industrial parks continuous backup power ‑ Residential zones, remote area off-grid power stations

⚙️ Optional & Customization

‑ Silent canopy / sound‑insulated enclosure ‑ ATS automatic transfer switch for auto‑start & mains‑failure auto‑switch ‑ Multi‑protection intelligent control cabinet, remote cloud monitoring module ‑ Large‑capacity extended fuel tank, cold‑region preheating device

📦 Packaging Standards

Export‑grade heavy‑duty iron frame packaging, anti‑rust coating for metal surfaces. Complete operation manual, spare‑parts kit are included inside the package.

🚛 Shipping & Delivery

Support full container and LCL transportation. Available for FOB, CIF and other international trade terms. Production lead‑time subject to order quantity, negotiable delivery schedule for bulk orders.

🏢 Brand Introduction

WOPUSAI Mechanical and Electrical WOPUSAI focuses on R&D, assembly and global supply of industrial diesel generator sets. We maintain long‑term strategic cooperation with Cummins, Shangchai Power, Yuchai and other well‑known engine manufacturers. Our product portfolio ranges from small portable gensets to large‑scale heavy‑duty industrial power equipment. Strict quality inspection runs through every production procedure. We provide worldwide customers with full‑set solutions covering model‑selection guidance, technical consultation and after‑sales support.

Introduction of Cummins Engine Cummins is a world‑renowned internal‑combustion engine manufacturer. The NTA855 series inline 6-cylinder engine is a time-tested classic power unit with stable performance and wide global service coverage. Widely used in generator sets and engineering machinery, it remains a highly trusted power selection for medium and large power supply projects.