Altronix OLS250 Installation Instructions

OLS250
Offline Switching Power Supply/Charger

Overview:

The OLS250 is a power supply/charger that converts 115VAC / 60Hz input, into a 24VDC @ 10 amp continuous supply
current (see specifications).

Specifications:

• 24VDC output.

• Input 115VAC / 60Hz, 1.9 amp.

• Maximum charge current 0.7 amp.

• 10 amp continuous supply current.

• Filtered and electronically regulated outputs.

• Built-in charger for sealed lead acid or gel type batteries.

• Automatic switch over to stand-by battery when AC fails
(zero voltage drop).

Installation Instructions:

The OLS250 should be installed in accordance with The National Electrical Code and all applicable Local Regulations.

1. Mount the OLS250 in desired location/enclosure.

2. Slide [Power ON/OFF] switch to OFF position (Fig. 1a, pg. 2).

3.

Connect AC power to terminals marked [L & N], connect ground to terminal marked [G] (Fig. 1, pg. 2).
Use 18
Use 22 AWG to 18 AWG for AC Fail/Low Battery reporting (Fig

4. Slide [Power ON/OFF] switch to ON position (Fig. 1a, pg. 2).

5.

Measure output voltage before connecting devices. This helps avoid potential damage.

6. Slide [Power ON/OFF] switch to OFF position (Fig. 1a, pg. 2).

7. Connect devices to be powered to terminals marked [--- DC +] (Fig. 1, pg. 2).

8. When the use of stand-by batteries are desired

connected in series terminals marked [--- BAT +] (battery leads included) (Fig. 1, pg. 2).
Note: When batteries are not used a loss of AC will result in the loss of output voltage.

9. Slide [Power ON/OFF] switch to ON position (Fig. 1a, pg. 2).

10.

Connect appropriate signaling notification devices to AC Fail & Low battery supervisory relay outputs
marked [N.C., C, N.O.] (Fig. 1b, pg

AWG or larger for all power connections (Battery, DC output, AC input).

, they must be lead acid or gel type. Connect two (2) 12VDC batteries

. 2).

• AC input and DC output LED indicators.

• AC fail supervision (form "C" contacts).

• Low battery supervision (form "C" contacts).

• Short circuit overload protection.

• Includes battery leads.
Board Dimensions (approximate): 4.25”L x 4.5”W x 1.75”H

Specified at 25˚ C ambient.

. 1b, pg. 2).

LED Diagnostics:

Red (DC) Green (AC) Power Supply Status

ON ON Normal operating condition.
ON OFF Loss of AC, Stand-by battery supplying power.
OFF ON No DC output. Short circuit or thermal overload condition.
OFF OFF Loss of AC. Discharged or no stand-by battery. No DC output.

LOW BAT

NC C NO NC C NO

OFF ON

5A 250V

AC FAIL

---BAT + --- DC +

15

AC DC

OFF ON

AC DC

LOW BAT

NC C NO NC C NO

AC FAIL

Terminal Identification:

Terminal Legend Function/Description

L, G, N Connect 115VAC to these terminals: L to Hot, N to Neutral, G to ground.

--- D C + 24VDC @ 10 amp continuous supply current.

AC FAIL
N.C., C, N.O.

Low Battery
N.C., C, N.O.

Used to notify loss of AC power, e.g. connect to audible device or alarm panel.
Relay normally energized when AC power is present. Contact rating 1 amp @ 28VDC.

Used to indicate low battery condition, e.g. connect to alarm panel. Relay normally energized when
DC power is present. Contact rating 1 amp @ 28VDC.
Low battery threshold: 24VDC output threshold set @ approximately 21VDC.

--- B AT + Stand-by battery connections. Maximum charge rate 0.7 amp.

Fig. 1

Fig. 1a

Fig. 1b

Altronix is not responsible for any typographical errors. Product specifications are subject to change without notice.

140 58th Street, Brooklyn, New York 11220 USA, 718-567-8181, fax: [phone]
website: www.altronix.com, e-mail: [e-mail], Lifetime Warranty, Made in U.S.A.
IIOLS250 - Rev. 100509 C03J

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