Railroad Signaling Systems
Maintain dependable power for mission-critical signaling equipment. HF-MAX helps protect system availability through power disruptions and other challenging conditions, supporting safe, reliable rail operations.
Applications
Railroad Signaling & Communications
Bring resilience to critical railway infrastructure with HF-MAX. Built in the USA by Lester Electrical, its redundant, durable charging platform delivers dependable power for railroad signaling systems, railway communications equipment and switch machines—helping keep your operations moving through multiple events.
Equipment
Built for Mission-Critical Railway Applications
Railway Communications Equipment
Keep essential communications equipment powered and connected when reliability matters most. HF-MAX provides durable charging performance to support clear, continuous communication across your railway network.
Switch Machines
Provide reliable power for the equipment that keeps rail traffic moving safely and efficiently. HF-MAX supports dependable switch machine operation through demanding conditions and unexpected power events.
Products for This Application
Recommended Charging Solution
Explore the HF-MAX Battery Charger for railway applications. Connect with National Railway Supply to compare available voltage, power, integration, and charging configurations, and identify the right fit for your system.
Lester Electrical
HF-MAX
12, 24, 48, 130 Vdc iPMs. 2, 4 and 8-slot chassis
For over 30 years, Lester Electrical has been a principal supplier of wayside battery chargers to the rail industry. We understand that delivering purpose-built…
View ProductApplication Challenges
Built for the Demands of Your Equipment
01
The Challenge
Reliability in Harsh Wayside Environments
How HF-MAX Helps
For more than 30 years, Lester Electrical has manufactured railroad battery chargers known for quality and dependable performance. Built in the USA, HF-MAX features rugged industrial construction, fan-free natural convection cooling and a wide operating temperature range of –40°C to +70°C—delivering lasting reliability in demanding wayside environments.
02
The Challenge
Maintaining Uptime During Component Failures
How HF-MAX Helps
HF-MAX houses multiple modular, hot-swappable Intelligent Power Modules (iPMs) within a single chassis. Configurable from N+1 to N+N redundancy, this architecture helps maintain continuous operation while allowing modules to be serviced or replaced without shutting down the charger.
03
The Challenge
Meeting Modern Monitoring and Control Requirements
How HF-MAX Helps
HF-MAX offers advanced capabilities for today’s railroad systems, including Ethernet connectivity, SNMP support, and sophisticated alarm and event-logging functions. Full AREMA compliance further ensures the platform meets the demanding requirements of modern railway applications.
04
The Challenge
Reducing Energy Use and Heat
How HF-MAX Helps
With peak efficiency exceeding 93%, HF-MAX consumes less AC power and generates less heat—helping reduce energy use and thermal stress. The chargers are also compliant with California Energy Commission requirements.
05
The Challenge
Reducing Maintenance Costs and Field Time
How HF-MAX Helps
Redundant, hot-swappable iPMs help minimize service interruptions, while remote Ethernet connectivity and advanced alarm and event logging give teams greater visibility into charger performance. Together, these capabilities help reduce unplanned maintenance, costly site visits and time spent in the field.
Let's Build What's Next
Need a Charging Solution for Your Equipment?
Whether you're evaluating an existing Lester product, developing a new OEM platform, or looking for a custom electrical solution, our team can help.