The PS220 and PS220B(Battery Backup) are regulated, linear power supplies rated at2 Amps continuous but designed to provide a brief current surge required by 24VDCfor electrified locking hardware: locksets, strikes, maglocks, and latch retractiondevices SPECIFICATIONS Input voltage: 120 VAC, 60Hz, 2 Amp Input Fuse Output voltage: Regulated 24VDC +/- 10% Current Rating: 2 Amps continuous; 3 Amp Boost @ 20% duty cycle. UL294 Sixth edition Class 2 Rated power limited Output Inputs: 2 independent, solid-state inputs triggered by normally open dry contact Solid-State Outputs 1: 2 Auto Resetting rated @ 1.5 Amp ea. Enclosure: PS220 (11”W x 11”H x 4”D), PS220B (13”W x 15.5”H x 5”D)(accommodates two 7AH batteries) AC Fuse Type: 5mm x 20mm rated @ 2 Amp, 250VAC LEDs: Red = A/C Power Indicator, Green = D/C Output Indicator,Orange = Battery Output Indicator Temperature Range: 0 to 49° C Power Tap1: Continuous 24VDC with .5 Amp re-setable fuse Fire Alarm Link Battery charging: Regulated, independent battery charging Battery backup: Automatic uninterrupted battery backup.Note -Battery capacity for emergency standby is at least 1 hour.Batteries not included (accommodates 2 each 7AH batteries) Maximum humidity: 85% Made in the USA UL294 (6e) Security Levels: Cutsheet Instructions