power.jpg (5308 bytes)                           

Welcome to Abbott Electronics.


 

M Series (M300S/M300T)
300 Watt Single & Triple Output Power Supply

Click here for a larger version of this image.

Click here for datasheet (pdf)

Features
300 watt single & triple output switching power supply.
High efficiency, 60% minimum.
Meets MIL-STD-461B, MIL-STD-810C and MIL-S-901C.

 

Specifications
Input: 103.5-126.5 Vac, 47-440 Hz, single phase. Other inputs available (H and -3 options.)
Efficiency: 60% minimum at full load.
Line Regulation: 25 mV or within 0.2%, whichever is greater, for change from low line to high line with load constant.
Load Regulation: 25 mV or 0.2%, whichever is greater for change from no load to full load with line constant.
Auxiliary Output Tracking: The negative output will track the positive output within 200 mV for all rated conditions (M300T).
Pard (Noise and Ripple): Main and Auxiliary outputs: 30 mV rms, 100 mV P-P maximum at 25 MHz bandwidth, over entire temperature range.
Isolation Voltage: 500 Vdc, input to output; 500 Vdc, input to case; 100 Vdc, output to case.
Insulation Resistance: 50 Mohms between input and output, input and case, output and case, when measured at 50 Vdc.
Temperature Range: Operating: 0°C to +71°C maximum, at center of the baseplate. Storage: -55°C to +85°C, ambient.
Temperature Coefficient: 0.01% / °C for main and auxiliary outputs over entire temp range.
Input Transient Protection: Unit will withstand 143.8 Vac for 0.3 second, in accordance with MIL-STD-1399.
Load Transient Recovery: Output voltage returns to regulation limits within 1.5 milliseconds for main and 100 microseccond for auxiliary outputs after 50% change in load current.
Holdup time: 10ms after nominal input is lost at full load.
Short Circuit Protection: Completely protected against a short circuit of any duration. Output automatically restores to normal when overload is removed.
Current Limiting: Output current is limited to 120% on main and auxiliary outputs (±10%) under overload conditions.
Remote Sensing: Regulator monitors voltage directly at the load using extra "sensing" leads and compensates for a dc voltage drop up to .5 volt in the load leads.
EMI: Units were designed and tested to the requirement of MIL-STD-461B, Class A1B, for generation of and susceptibility to radiated and conducted interference. For further details and reports, consult your nearest sales office.
Reliability: MTBF is calculated per MIL-HDBK-217D at 50°C baseplate temperature with maximum operating input voltage and maximum rated output power. The MTBF for M300T at ground benign environment is 77,455 hours.
Environment: Encapsulated and hermetically sealed to meet the environmental requirements of MIL-STD-810C and MIL-S-901C, Class 2, including altitude (to 70,000 feet), vibration, shock, acceleration, sand, dust, humidity, saltspray, fungus, explosion, etc.
Connectors: Standard unit is provided with an input solder pin header and an output "hermetic seal" stud-type connector.


md.gif (8376 bytes)

Single Output
clear_dot.gif (43 bytes) Output Voltage Range Output Current (Amps) Weight (Lbs.) Size (inches)
A B C
M300S/5-D 4.75-5.25 60.0 7.8 6 x 8 x 3
M300S/12-D 11.40-12.60 25.0 7.8 6 x 8 x 3
M300S/15-D 14.25-15.75 20.0 7.8 6 x 8 x 3
M300S/24-D 22.80-25.20 12.5 7.8 6 x 8 x 3
M300S/28-D 26.60-29.40 10.7 7.8 6 x 8 x 3

 

Triple Output
clear_dot.gif (43 bytes) Output Voltage (main/aux) Output Current (m/aux) Weight (Lbs.) Size (inches)
A B C
M300T/5/12-D 5 / ±12 48/2.5 9.2 6 x 8 x 3
M300T/5/15-D 5 / ±15 48/2.0 9.2 6 x 8 x 3

 

Model Numbering System
Model Series Total Output Power # of Outputs clear_dot.gif (43 bytes) Main Output Voltage clear_dot.gif (43 bytes) Aux. Output Voltage clear_dot.gif (43 bytes) Header Type clear_dot.gif (43 bytes) Options
M 300 T / 5 / 12 - D - R

 

Options
A Option: Special Connectors. A military-type hermetically sealed connector is provided in place of our standard input header. To order, replace the "D" in the model with "A".
E Option: Severe Shock, Acceleration and Vibration. Enables all units to withstand 60 g's shock, 50 g's acceleration and 30g's vibration. To order, add "E" after "D" in the model number.
H Option: Wide Input Voltage. Units will operate from 90 to 126.5 Vac with 20% derating in output power. To order, add an "H" after the "D" in the model number.
L Option: Remote Turn On/Off. Provides isolated terminals to turn output on/off with TTL logic signal. To order, add "L" after "D" in the model number.
R Option: Remote Output Adjustment. An adjustment potentiometer can be remotely located to adjust the output voltage. To order, add "R" after "D" in the model number.
T Option: Wider Operating Temperature. -20°C to +71°C. Pard (noise and ripple) specification increases to 200 mV P-P. To order, add "T" after "D" in the model number.
-ER Option: Provides increased reliability by using higher levels of military grade components. To order, add "-ER" after the model number.
-3 Option: WYE Input. Changes input to 3-phase, 4-wire "WYE". To order, add "-3" to the end of the model number.
-7 Option: 50/50 Power Split. Provides a 50/50 power split between main and auxiliary outputs (50% main output, 25% each,, auxiliary outputs). Load regulation of auxiliary outputs will be 2 times greater than standard model. To order, add "-7" to the end of the model number.