The Lenel LNL-AL400ULX is a UL-listed power supply and battery charger for LenelS2 OnGuard access control systems. Specifically, it converts AC line power into a regulated DC output for controllers and door hardware. Therefore, it delivers dependable power with battery backup.
First, the unit accepts 115 VAC, 60 Hz input. In addition, it provides a single Class 2, power-limited output. As a result, it supplies 12 VDC at 4 A or 24 VDC at 3 A, selectable for the application.
How the Lenel LNL-AL400ULX Provides Backup
The supply includes a built-in charger for sealed lead-acid or gel batteries. Furthermore, it switches automatically to standby battery when AC power fails. Therefore, connected access control hardware stays powered during outages. As a result, doors remain managed through a power interruption.
Key Features
- UL-listed power supply and charger for LenelS2 OnGuard
- 115 VAC, 60 Hz input
- Single Class 2, power-limited output: 12 VDC at 4 A or 24 VDC at 3 A
- Built-in charger for sealed lead-acid or gel batteries (0.7 A max charge)
- Automatic switchover to standby battery on AC loss
- Supplied in a protective steel enclosure
Specifications
- AC input: 115 VAC, 60 Hz, 3.5 A (3.5 A / 250 V input fuse)
- DC output: 12 VDC at 4 A or 24 VDC at 3 A (single Class 2 output)
- Battery charging: 0.7 A maximum charge current
- Operating temperature: 0 to 49 degrees C
- Listing: UL listed
Order or Get Application Help
Life Safety Consultants stocks LenelS2 power supplies for OnGuard systems. To order the Lenel LNL-AL400ULX or to plan battery backup for your panel, call 1-888-557-0558. Alternatively, email sales@lifesafetycom.com.
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | 16.01 lbs |
|---|---|
| Dimensions | 25.4 × 19.6 × 6 in |
| Condition | New |
| Manufacturers | Life Safety |
| Part Type | Power Supply |







