Call: 800-888-8101 PN / AX-AL175UL * ∣ Access Control Power Supply Charger, 2 PTC Class 2 Outputs, 12/24VDC @ 1.75A, 115VA, BC100 Enclosure The Altronix AL175UL Switching Power Supply/Charger converts a 115VAC 60Hz input into two (2) individually PTC-protected 12VDC or 24VDC outputs.