Rockwell Energy – Manufacturer of Top Quality MV Auto Recloser Controller | 10-Year Warranty + Free Software

Rockwell Energy (Zhejiang Rockwell Energy Technology Co., Ltd.) is a high-end global supplier of medium voltage auto recloser controllers, delivering performance directly comparable to SEL, while offering more competitive life-cycle services and customization capabilities. The company specializes in auto recloser controllers, power quality, and power monitoring, bringing together top talent in power engineering, automation, and software development. Its products are exported to Asia, Africa, the Middle East, Europe, and Latin America. Combining protection performance on par with world-class brands with a 10-year life warranty, lifetime free software, and flexible ODM/OEM services, Rockwell Energy has rapidly gained the trust of users worldwide.

Multiple Recloser Protection and Control Products – Feature Alignment with Classic Models like SEL-651R

The product line covers everything from basic to advanced applications. The export-standard controller (meeting both US and IEC standards) is suitable for outdoor switches rated at 35 kV and below. It incorporates complete protection logic comparable to SEL auto recloser controllers, including three-phase directional overcurrent, programmable reclosing (0–4 times), zero-sequence and sensitive earth fault protection, inrush restraint, overload protection, and negative-sequence overcurrent protection. The export economy version retains core protection functions and offers optional Bluetooth, GPRS, and SMS capabilities, delivering distribution automation solutions with performance rivaling SEL's economy models at a lower cost.

RWK Series – The Core of Auto Recloser Control, Matching SEL-351/451 Performance

The RWK series integrates protection, control, measurement, and monitoring functions, suitable for various outdoor switches rated at 35 kV and below. It supports GSM/GPRS, Ethernet, WiFi, fiber optics, power line carrier, serial communication, and other interfaces, and is compatible with common communication protocols beyond IEC 61850, offering interconnection capabilities comparable to SEL products.

• RWK-35 provides full ANSI protection functions including 50P/51P, 50G/51G, directional overcurrent (67), auto-reclosing (79), sensitive earth fault (50SEF), neutral overvoltage (59N), synchronism check (25), frequency protection (81), negative-sequence overcurrent (46), undervoltage/overvoltage protection (27/59), and directional power protection (32). Its functionality covers the core protection features of mainstream SEL auto recloser controllers.

Physical Photograph of RWK-35 Intelligent Recloser Controller

• RWK-65 additionally integrates local feeder automation (adaptive integrated type and voltage-current-time type). Its fault location, isolation, and service restoration strategies are comparable to SEL's distribution automation solutions, and it supports user-defined logic programming to better adapt to complex distribution grids.

Physical Photograph of RWK-65 Intelligent Recloser Controller

ODM/OEM Customization – Greater Flexibility than SEL

Unlike SEL's highly standardized product strategy, Rockwell Energy offers deep ODM/OEM customization. Hardware interfaces, appearance and branding, protection logic, communication protocols, and software functions can all be custom designed, with one-stop delivery from concept and prototype to mass production. This service enables customers to enter the market quickly with their own brands, precisely match the operating habits and protection coordination strategies of different power grids, and achieve true differentiation – a level of business flexibility that traditional giants like SEL rarely provide.

10-Year Life Warranty and Free Software – Comparable Warranty, Superior Software Value

Rockwell Energy implements a full life-cycle quality control system, offering a 10-year life warranty on auto recloser controllers – matching SEL's standard warranty period. Additionally, the companion PC-based programmable configuration software is lifetime free to use and upgrade, whereas SEL's AcSELerator and similar software typically require separate license purchases and annual fees. This combination delivers significant long-term software cost savings alongside reliable warranty coverage, offering a more attractive total life-cycle value.

RW Energy Colombia PV Plant – 35 kV Recloser Controller On-Site Installation Photo

Global Standards and Certifications – Same Compliance Level as SEL

All products are designed in strict accordance with standards such as IEC 62271-111 and IEEE C37.60, and have passed KEMA type tests performed by STL laboratories. Supported protocols include IEC 60870-5-101/104, DNP3.0, and Modbus RTU. The products comply with multiple international grid access requirements including IEC, IEEE/ANSI, BS, and NF standards, ensuring the same level of global compliance as SEL products.

Summary

With the RWK series and its export-oriented auto recloser controllers, Rockwell Energy combines SEL-comparable protection performance, a 10-year warranty, lifetime free software, and flexible ODM/OEM customization into a core set of advantages. By offering lower total costs and more open customization services, Rockwell Energy helps global distribution grids achieve intelligent upgrades and reliable power supply.