Overview:
Altronix OLS250 power supply/charger converts 115VAC, 60Hz input into 24VDC at 10A of continuous sup-
ply current (see specifications). This general purpose power supply has a wide range of applications for access
control and security system accessories that require additional power.
Specifications:
Installation Instructions:
OLS250 should be installed in accordance with The National Electrical Code and all applicable
Local Regulations.
1. Mount the OLS250 in the desired location/enclosure (mounting hardware included).
2. Slide [Power ON/OFF] switch to OFF position (Fig. 1, pg. 2).
3. Connect AC power to the terminals marked [L & N], connect ground to the terminal marked [G].
Use 18 AWG or larger for all power connections (Battery, DC output, AC input).
Use 22 AWG to 18 AWG for power limited circuits (AC Fail/Low Battery reporting).
Keep power-limited wiring separate from non power-limited wiring (115VAC, 60Hz Input, Battery
Wires). Minimum 0.25” spacing must be provided.
CAUTION: Do not touch exposed metal parts.
Shut branch circuit power before installing or servicing equipment.
There are no user serviceable parts inside.
Refer installation and servicing to qualified service personnel.
4. Slide [Power ON/OFF] switch to ON position (Fig. 1, pg. 2).
5. Measure output voltage before connecting devices. This helps avoiding potential damage.
6. Slide [Power ON/OFF] switch to OFF position (Fig. 1, pg. 2).
7. Connect devices to be powered to the terminals marked [– DC +].
When the use of stand-by batteries is desired, they must be lead acid or gel type.
8. Connect battery to the terminals marked [– BAT +] (battery leads included).
Note: When batteries are not used, a loss of AC will result in the loss of output voltage.
9. Connect appropriate signaling notification devices to AC Fail & Low battery supervisory
relay outputs marked [NC, C, NO].
10. Slide [Power ON/OFF] switch to ON position (Fig. 1, pg. 2).
LED Diagnostics:
Red (DC)
Green (AC)
Power Supply Status
ON
ON
Normal operating condition.
ON
OFF
Loss of AC. Stand-by battery is supplying power.
OFF
ON
No DC output. Short circuit or thermal overload condition.
OFF
OFF
No DC output. Loss of AC. Discharged or no battery present.
OLS250
Off-Line Power Supply/Charger
Input:
• 115VAC, 50/60Hz, 1.9A.
Working range for 24V/10A output: 100-132VAC
Working range for 24V/8A output: 95-132VAC.
Output:
• 24VDC output.
• 10A continuous supply current.
• Filtered and electronically regulated output.
• Short circuit and thermal overload protection.
Supervision:
• AC fail supervision (form “C” contacts).
• Low battery supervision (form “C” contacts).
Battery Backup:
• Built-in charger for sealed lead acid or
gel type batteries.
• Automatic switch over to stand-by battery
when AC fails.
• Maximum charge current 0.7A.
Visual Indicators:
• AC input and DC output LED indicators.
Features:
• Power ON/OFF switch.
• Includes battery leads.
Board Dimensions
(L x W x H approx.)
:
7.25” x 4.5” x 1.75”
(184.1mm x 114.3mm x 44.5mm).
