Religador Rocket-3F
The Market’s Challenge
Ensuring technological sustainability and local competitiveness, developing products that not only keep pace with but anticipate the needs of increasingly autonomous and resilient networks.
The rapid expansion of automation in distribution networks, driven by the “first wave” of modernization, has established three-phase reclosers as key components in smart energy systems. However, the market now faces a new challenge: reliance on foreign manufacturers and the need for continuous innovation in a landscape already saturated with established technology solutions. With advanced features such as measurements on both sides of the network and NO (normally open) mode operation, reclosers have become more complex and more integrated.
THREE-PHASE ELECTRICAL GRID PROTECTION AND AUTOMATION
Remote-controlled smart grid solution, with communication via Bluetooth and IoT Network and with low cost and low power consumption

The Solution
The Rocket-3F® Three-Phase Recloser features an embedded, self-powered communication module that enables supervision and telecontrol through SCADA systems via the DNP3.0 protocol.
With low weight and a control box integrated into the power unit, the Rocket-3F is simpler to install and takes up less space on poles, making it ideal for urban circuits as well.
About Rocket-3F
In this video, engineer Luiz Eduardo talks about the Rocket-3F in an interview with the ALESP channel.
Click on the image to watch the video.
Smart Grid Solution
Protection, telecontrol and communication
Developed and manufactured entirely in Brazil, , the Rocket-3F® Three-Phase Recloser combines protection, communication, automation, and telecontrol functions in a single device.
All of it practical and cost-effective — powered by the latest available IoT communication technologies.
Communication via Bluetooth and IoT Network
Communication and configuration are carried out locally via the Hart Devices App (Bluetooth) or remotely via IoT networks.
Telecontrol via IoT Networks
Using the embedded, self-powered communication module, it is possible to supervise and telecontrol the Rocket-3F® through SCADA systems via the DNP3.0 protocol.
Environment and Sustainability
The polymeric material of the Rocket-3F is 100% recyclable. We use solar panels for power generation and to extend the recloser's autonomy when there is no power supply.
Mechanical Levers
Configurable operating modes for local operation
The Rocket-3F®’s integrated control box has 4 levers for operating the equipment from the ground, using a standard hot stick.
Switch Mode
The recloser's protections are disabled; however, the equipment still reports "fault" events to SCADA according to its settings, effectively operating as a fault sensor — reporting short-circuit level, date and time, etc. When configured as a switch, though, the equipment will not operate automatically in the event of a fault.
Sectionalizer Mode
The Rocket-3F counts fault events that follow the opening and reclosing of an upstream recloser, operating during that recloser's dead time — isolating the fault from the circuit and ensuring that a smaller area is affected by the power outage.
Operating Mode
These modes can be enabled/disabled remotely via the SCADA system or locally via the Hart Devices app.
Technical Characterists
Main technical features of Rocket-3F®
Autonomy guaranteed by supercapacitors (no batteries required)
The Rocket-3F® also has solar panels on its upper base, extending autonomy to more than 24 hours.
100% polymeric body, no risk of corrosion
Control box embedded in the power unit
Bi-stable magnetic actuator, no springs used for operations
Basic operations performed from the ground, using a hot stick
Solar panels for extended autonomy
The use of supercapacitors instead of batteries provides a significant weight reduction and fewer maintenance events, since supercapacitors have a service life similar to that of the recloser itself, eliminating the need for any type of maintenance
Complete equipment weighs less than 70kg

Sensing for measurement
The Rocket-3F® takes voltage measurements on both the source and load sides. Measurement is performed via resistive dividers, ensuring greater accuracy and easier integration with other IEDs.
The Rocket-3F was developed to operate on radial or ring networks
The Rocket-3F can operate in NC (normally closed) or NO (normally open) mode, providing greater flexibility in the utility's use of its assets
The equipment calculates active, reactive, and apparent power, and also reports the power factor for each phase
The Rocket-3F has a minimum pickup of 4A for ground faults and SEF (Sensitive Earth Fault)

Geopositioning that indicates the exact location of the recloser
With an onboard GPS chip, the Rocket-3F dynamically reports the exact fault location to SCADA. No configuration is required, ensuring a fast field crew dispatch in the event of permanent faults.
Regardless of communication with SCADA, the Rocket-3F's internal RTC is always kept up to date. If the equipment is reinstalled in a different location, the new location data (latitude and longitude) is sent to SCADA, preventing registration errors
The reliable timestamp also enables secure local access via the Hart Devices app. The Rocket-3F requests access tokens that vary according to the recloser's date

100% integrable with the most modern IoT networks, particularly LoRa, NB-IoT, and 410/450MHz
The Rocket-3F was designed with integration into the most modern available telecommunication networks as a core premise, with no need for external telecom panels.
Offers the flexibility to adopt new communication technologies that will naturally emerge over its service life, since telecommunication technologies evolve much faster than those used in the electrical sector
The Rocket-3F has a microPCI-e connector that supports LoRa, NB-IoT, 410/450 MHz, and NTN (satellite) modules, with no need to add external telecom panels — reducing the final cost of a SCADA-integrated recloser
The modules are powered by the recloser itself, eliminating the need for any external power infrastructure. The antennas are integrated into the recloser, meaning no external panel or additional structure is required
Check out all the technical features of Rocket-3F® Recloser. Download the brochure now.
App Android e iOS
APP Hart Devices to assist field operations
Watch the video and check out a few features of Hart Devices App!

Commands by APP Hart Devices
With the Hart Devices App, it is possible to access the Rocket-3F via Bluetooth to perform:
Readings and commands
Event log analysis (the Rocket-3F stores the previous 1,000 events with timestamps)
Protection adjustments, among other activities
Further details regarding the application are described in the brochure.
Cutting-Edge IoT Technology
SCADA Integration with cybersecurity and next-generation connectivity
LoRaWAN and NB-IoT (Internet of Things) technology ensure that data communication between field devices and SCADA (Supervisory Control and Data Acquisition) systems is always secure, because they offer end-to-end data encryption, dedicated to network and application servers.
With integration that is 100% compatible with the most modern IoT networks, the Rocket-3F connects to LoRa, NB-IoT, 410/450 MHz, and NTN networks, eliminating the need for external telecom panels.
Embedded radio and antenna
No external modules required
IoT Protocol Broker
ArpeggIO® Suite

ArpeggIO Suite provides integration between IoT network and legacy systems
ArpeggIO is a system that operates as a broker for IoT protocols, such as MQTT, enabling the integration of Rocket-family reclosers with utility systems.
Device connection management
Includes cybersecurity algorithms
Manages firmware update deployment
Converts IoT protocol to DNP3. For integration with other protocols, please contact our team!
Remote configuration of reclosers
Restoration logic
SQL database
Cost x Benefit
End-to-end benefits
Discover the measurable benefits that bring greater reliability and results across the utility’s entire electrical system.
Additional Information
Learn more about Rocket-3F
Obtain additional product information! Browse the tabs to watch videos or download the brochure and the technical proposal.
Se preferir, entre em contato com nossa equipe comercial. Estamos prontos para atendê-lo!
Installation and Operation Videos
Brochure and Technical Proposal
Certification
Product tested in
CESI-Itália
In compliance with IEEE C37.60-2019, the Rocket-3F® Recloser was tested and approved in all applicable tests.








