Altronix AL201ULB Installation Instructions - Manual

Overview:
The AL201ULB is a power limited power supply/charger that converts a 24VAC input, into a 12VDC output,
(see specifications). It is intended for use in applications requiring UL Listing for Access Control System
Units (UL 294).
Specifications:
• UL Recognized component.
• Class 2 Rated.
• 24VAC 40VA input. Use UL Listed plug-in transformer.
• 12VDC power limited output.
• 1.75 amp continuous supply current @ 12VDC.
• Filtered and electronically regulated output.
• Maximum charge current 400mA.
• Automatic switch over to stand-by battery when AC fails (zero voltage drop).
• AC fail supervision (form “C” 1 amp @ 28VDC).
• Low battery supervision (form “C” 1 amp @ 28VDC).
• AC input and DC output LED indicators.
• Short circuit and thermal overload protection.
• Includes power supply and battery leads.
Board Dimensions (approximate): 3”H x 5.75”W x 1.2”H
Power Supply Output Specifications:
Output VDC Max. Stand-by Load DC Max. Alarm Load DC Battery (optional)
12VDC 1.75 amp 1.75 amp 12VDC / 7AH
Stand-by Specifications:
Output 4 hr. of Stand-by & 5 Minutes of Alarm
12VDC / 7 AH Battery Stand-by = 1.25 amp
Installation Instructions:
The AL201ULB should be installed in accordance with article 760 of The National Electrical Code or NFPA 72 as well
as all applicable Local Codes.
See Terminal Identification Chart on page 2 for a description of each terminal function.
1. Mount the AL201ULB in desired location/enclosure.
2. Connect 24VAC/40VA transformer to terminals marked [XFMR INPUT].
Use 18 AWG or larger for all power connections (Battery, AC input). Use 22 AWG to 18 AWG for
power limited circuits (DC output, AC FAIL and LOW BAT supervisory relays).
Keep power limited wiring separate from non-power limited wiring (115VAC / 60Hz Input, Battery Wires).
Minimum .25” spacing must be provided.
3. Connect battery to terminals [+ BAT -- ] as marked on the unit (battery leads included).
Note: For Access Control applications, batteries are optional. When batteries are not used a loss of AC will result
in the loss of output voltage. When the use of stand-by batteries is desired, they must be lead acid or gel type.
4. Measure output voltage before connecting devices. This helps avoid potential damage.
5. Connect devices to be powered to terminals marked [ + DC -- ] (Fig. 1).
6. Connect appropriate signaling notification devices to AC Fail and Low Bat supervisory relay outputs.
Note: To meet UL requirements, AC Supervisory outputs must be connected to the zone of Alarm
Control Panel or to a visual AC trouble indicator.
AL201ULB
Access Control Power Supply/Charger