The Altronix SMP3 is a compact power supply and battery charger board. It converts a low-voltage AC input into a 6VDC, 12VDC, or 24VDC selectable output.
First, an external Altronix plug-in transformer feeds 16VAC to 28VAC into the board. Then the SMP3 regulates that to 6, 12, or 24VDC at 2.5A continuous. As a result, the unit drives access control, security, and CCTV accessories that need clean low-voltage DC.
In addition, the SMP3 includes an integrated sealed lead acid / gel battery charger. Therefore, on AC loss the unit transfers to standby battery instantly with no drop on the output.
Key Features of the Altronix SMP3
- Selectable 6VDC, 12VDC, or 24VDC output from one board
- 2.5A continuous output current
- Filtered and regulated output
- Short-circuit and thermal overload protection
- Built-in charger for sealed lead acid or gel batteries
- Instantaneous failover to standby battery on AC loss
- AC input and DC output LED indicators
- Compact open-frame board with included mounting hardware
Specifications
- Input: 16VAC to 28VAC (from external Altronix transformer)
- Output: 6VDC, 12VDC, or 24VDC selectable
- Output current: 2.5A continuous max
- Battery type: sealed lead acid or gel, sold separately
- Board dimensions (L x W x H): 3.5″ x 3″ x 2″ (88.9 x 76.2 x 50.8 mm)
- Product weight: 0.25 lb (0.12 kg)
- Operating temperature: 0°C to 49°C (32°F to 120°F)
- Storage temperature: -20°C to 70°C (-4°F to 158°F)
- Relative humidity: 85% ±5%
- BTU/hr: 8 (6V), 15 (12V), 31 (24V)
- Lifetime warranty
Intended Applications — Access, Security, and CCTV
Per the Altronix data sheet, the SMP3 is intended for access control, security, and CCTV system accessories. Therefore, it is well suited as auxiliary DC for door strikes, maglocks, sirens, sensors, and small camera installs. However, the SMP3 data sheet does not list UL 864, UL 294, or NFPA 72 agency approvals. As a result, it should not be used as a fire alarm or NAC power source. For those, choose a series with the matching agency listing (for example FireSwitch108 for UL 864 NAC).
Order the Altronix SMP3
Life Safety Consultants stocks the Altronix SMP3 board along with the matching plug-in transformer and BC100 enclosure. To order or to confirm fit, 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 | 0.5 lbs |
|---|---|
| Dimensions | 5.5 × 3 × 2 in |
| Condition | New |
| Manufacturers | Life Safety |
| Part Type | Replacement Part |






