Samlex SEC-2415-UL 24V 15A Battery Charger Lead-Acid 3-Bank

The Samlex SEC-2415-UL is a fully automatic, commercial-grade battery charger engineered for 24-Volt lead-acid battery systems in demanding professional environments. Supporting flooded, AGM, and gel cell chemistries, it accepts either 120 VAC or 230 VAC input at 50 or 60 Hz — both user-selectable via internal settings — making it well-suited for domestic and international deployments alike. A user-selectable two- or three-stage charging algorithm allows the unit to serve as a conventional charger or to support DC UPS applications where a load remains connected during charging. With the ability to charge up to three separate battery banks simultaneously without an external isolator, and the flexibility to operate as a standalone DC power supply, the SEC-2415-UL delivers the kind of operational versatility that reduces infrastructure overhead in telecom shelters, network equipment rooms, and backup power installations. UL-1564 listing and FCC Part 15 Class B compliance affirm its suitability for regulated commercial and light-industrial environments.

Key features & benefits

• Universal AC Input Voltage — Accepts 120 VAC or 230 VAC at 50 or 60 Hz, user-selectable, allowing a single unit to operate across North American and international power grids without hardware changes.
• Selectable 2- or 3-Stage Charging Algorithm — A DIP switch converts the unit between a three-stage fully automatic charge cycle for standalone batteries and a two-stage algorithm optimized for batteries connected to an active DC load, enabling true DC UPS functionality.
• Three-Bank Simultaneous Charging — Charges up to three independent battery banks at once with no external isolator required, reducing wiring complexity and equipment cost in multi-bank backup power architectures.
• Universal Protection Circuit (UPC) — Integrated protection against short circuit, overload, over-temperature, and reverse battery polarity safeguards both the charger and connected battery assets from common field wiring errors and fault conditions.
• Dual-Function: Charger and DC Power Supply — The unit can operate as a 24 VDC power supply independent of any battery, providing flexibility for applications that require a regulated DC source without dedicated supply hardware.
• Voltage and Current Metering with LED Status — An onboard voltmeter display, ammeter, and LED power-status indicator give technicians immediate visibility into charging state and system health without external test equipment.
• Compatible with All Lead-Acid Battery Chemistries — Supports flooded, Absorbed Glass Mat (AGM), and gel cell lead-acid batteries, making it a single solution across mixed battery inventories common in telecom and IT backup power systems.
• Certified for Commercial and Regulated Environments — Listed to UL Standard UL-1564 and EMI compliant to FCC Part 15, Class B, ensuring the unit meets safety and electromagnetic compatibility requirements for deployment in commercial facilities.