Samlex SEC-2440UL 24V 40A Battery Charger

Description

The Samlex SEC-2440UL is a professional-grade 24 volt 40 amp battery charger designed for industrial, commercial, marine, RV, telecom, and backup power applications. Featuring fully automatic 3-stage charging, the SEC-2440UL delivers reliable charging performance for AGM, flooded (wet), and Gel batteries while helping maximize battery life and system reliability.

Installation Note: The SEC-2440UL is designed for permanent installation and requires user-supplied battery cables and connections. For custom battery cables and battery interconnects, visit our Custom Battery Cables page or contact us for assistance.

Engineered for continuous-duty operation, the SEC-2440UL can also function as a regulated DC power supply or as part of a DC UPS system when connected to a battery bank.

Key Features

• 24 Volt 40 Amp Smart Charger — Automatic Bulk, Absorption, and Float charging stages optimize charging efficiency and battery longevity.
• Compatible with AGM, Flooded, and Gel Batteries — Suitable for a wide range of deep cycle and standby battery applications.
• Power Factor Corrected (PFC) Input — Improves AC efficiency, reduces electrical demand, and minimizes operating costs.
• Clean, Regulated DC Output — Safe for powering sensitive electronics, communications equipment, and backup power systems.
• Dual Battery Bank Charging — Charge two battery banks simultaneously without the need for additional equipment.
• DC Power Supply Capability — Functions as a regulated DC power supply when battery charging is not required.
• Temperature Controlled Cooling — Variable-speed fan cooling helps maintain safe operating temperatures under varying loads.
• Industrial-Grade Construction — Durable steel enclosure and high-quality components designed for long-term reliability.
• UL Listed — Certified for professional, commercial, and residential installations.
• Installation Required — The SEC-2440UL is designed for permanent installation and does not include battery clamps or battery connection cables. Appropriate wiring and connections must be supplied by the installer.

Common Applications

• 24V solar and off-grid battery systems
• Marine and RV battery banks
• Telecommunications and communications backup systems
• UPS and emergency backup power systems
• Industrial DC power applications
• Mobility, material handling, and specialty equipment

Whether you’re maintaining a 24V battery bank, supporting critical backup equipment, or powering an off-grid system, the Samlex SEC-2440UL delivers dependable charging performance and long-term reliability.

Dimensions

• Length: 15″ (381 mm)
• Width: 9.61″ (244 mm)
• Height: 3.82″ (97 mm)
• Weight: 9 lbs (4.1 kg)

SEC-2440UL Data Sheet

SEC-2440UL Manual

Certifications

• UL 1564 Compliant
• CSA C22.2 No. 107.2 Certified