Department of Defense MIL-STD-1275 Military Ground Vehicles 28Volt DC Characteristics
MIL-STD-1275 Version	MIL-STD- 1275A	MIL-STD- 1275B	MIL-STD- 1275C	MIL-STD- 1275D	MIL-STD- 1275E
Published Date	17-September- 1996	20-November- 1997	23-June-2006	29-August-2006	22-March- 2013
28 VDC mean
Normal Range Voltage	23-33, Change Notice 2	25-30	25-30	25-30	20-33
Ripple Voltage	2V pk to pk(50Hz to 200KHz)	2V pk to pk(50Hz to 200KHz)	2V pk to pk(50Hz to 200KHz)	2V pk to pk(50Hz to 200KHz)	MIL-STD-461, CS101 limits, 30Hz to 250Khz, Figure CS101- 1
Initial Engagement Surge Voltage	6 for 1 second	6 for 1 second	6 for 1 second	6 for 1 second	12 for 1 second
Cranking Surge Voltages	16 for 30 seconds	16 for 30 seconds	16 for 30 seconds	16 for 30 seconds	16 for 30 seconds