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Contents
1. O i z i O H 3 o Ie al U MN O i JHC EHIN 4 1 POWER SWITCH 2 ACINPUT SOCKET 3 Output I Anderson CONNECTORS 3 1 DC OUT 3 2 DC OUT 4 Output 2 Binding Post CONNECTORS 4 1 DC OUT 4 2 DC OUT 5 FAN MSR 1228 Rack Mounted Switching Power Supply User Manual Specifications and Features 28 Amps MAX 25 Amps Continuous at 13 8 VDC Light weight only 3 586 lbs 1 63kg Compact only 163mm 45mm 212mm W H D Multi Output 1 set of Binding posts 2 sets of Anderson connectors Over Voltage protection Over Current protection Input Voltage Fixed AC input voltage 110 Vac or 220 Vac at 47 63Hz Super Regulation Works with AC input from 85 135 Vac or from 170 260 Vac AC Line Fuse 6 Amps Rack Mounted available for 19 rack Instruction Manual Thank you for purchasing the MSE Switching Power Supply The MSR 1228 is designed to supply up to 28A maximum current 5 mins or 25A continuous current at 13 8 VDC INSTALLATION The loads can be connected to either the binding posts or the Anderson connectors Note that any set of connectors may provide up to 28A but total output limited at 28A maximum OPERATION The MSR 1228 has a fixed output at 13 8 VDC All you have to do is connect the output and turn the power switch to the ON Position FAN The cooling fan on the MSR 1228 will operate when the unit is turned ON2. The speed of the fan varies depending on the setting of the DC output PROTECTION The MSR 1228 will automatically shut off if over 30 amps of current be drawn from its outputs To reset turn the unit OFF and wait 20 seconds then turn the unit back on The MSR 1228 has a 6 amp AC input fuse at the back inside of the unit To replace the fuse remove the old fuse by opening the case and replace with a new 6 amp fuse Note 1 WARRANTY IS VOID IF VOLTAGE SELECTOR IS CHANGED 2 Circuit Diagram When power supply has been run for a long period we suggest before turning off the power supply You run the PSU for a short period of time without any load to allow the cooling fan to reduce the case temperature 3 DANGEROUS VOLTAGE INSIDE DO NOT OPEN
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