COMMERCIAL 28VDC TECHNICAL REQUIREMENTS_189.docx
DOCX document 21 KB Posted
- Solicitation number
- DLA-Aberdeen-25-006
About this file
This document is a technical requirements specification for a commercial 28VDC power supply used inside the AN/ASM-189 electronic maintenance repair van. It outlines the electrical, mechanical, and environmental requirements for an interchangeable replacement power supply, including input voltage, output voltage and current, dimensions, cooling, and connectivity.
The related federal contract opportunity is a market survey by the Defense Logistics Agency to identify additional sources of supply for the 28VDC power supply, NSN 6120-01-508-1273, P/N DHP 30-330M27 currently used in the AN/ASM-189 vans. Respondents must provide supporting documentation to prove their proposed commercial power supply meets the same form, fit, and function requirements as the incumbent. An "Industry Day" will be held at Tobyhanna Army Depot for suppliers to demonstrate their power supply's interchangeability. The government is seeking sources for this power supply to support requirements through fiscal year 2030, with a NAICS code of 335311.
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Other files
| File | Type | Posted |
|---|---|---|
| DRAWING A3284329.pdf | ||
| DLA-Aberdeen-25-006-Contractor Questionnaire.docx | DOCX document |
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Text version
TECHNICAL REQUIREMENTS
For Commercial 28VDC PWR Supply used inside the AN/ASM-189 Van:
INPUT Electrical/Mechanical Requirements:
a. 120/208VAC 3-phase, 60Hz
b. Interface Cable: A3284329-001
c. Power Factor: .72-.88
d. Efficiency: 80-83%
OUTPUT Electrical Requirements:
a. 0-30VDC minimum
b. 0-330Amps minimum
c. Low Ripple: 10-20mV (RMS)
d. Rated Output Power: 9.9-10kW minimum
e. Overvoltage Protection (OVP) Capability
FORM/FIT Interchangeability Requirements for Shelter Rack System:
a. 19” Conventional Rack Mount Design
b. Chasis “only” Width: 16.9” maximum
c. Total Depth (chasis plus input system box): 24.5” max
d. Height: 5.25” maximum
e. Cooling Air: Front and/or Sides Intake; Rear Air Exhaust
f. Top & Bottom Clearance Spacing: None; Zero Stack
INPUT Electrical MECHANICAL Connection:
a. #10-32 Threaded Studs, or
b. M6X1 Threaded Studs IMPORTANT: Interchangeability shall exist in electrical input interface cables (A3284329-001) to allow easy attachment with existing cables that are inside the AN/ASM-189 Van, in order to facilitate “drop-in” replacement.
OUTPUT Electrical MECHANICAL Connection: Bus Bar, 0.390-0.42” dia holes
Front Panel Display: a. Vout & Iout Encoders, w/Fine/Coarse Selection; Digital Display, or
b. Keypad; Digital Display
ADDITIONAL INTERCHANGEABILITY REQUIREMENTS:
Interchangeability shall exist with electrical input/output interface cables, to allow easy attachment with existing cables that are inside the AN/ASM-189 Vans. Interchangeability shall also exist in fit, so that the replacement 28VDC PWR Supply will fit exactly in the designated compartment of the electrical rack that is inside the AN/ASM-189 Van. The present commercial 28VDC PWR Supply that is being used inside all AN/ASM-189 Vans is P/N #DHP 30-330M27, as manufactured by Elgar (Ametek).
ENVIRONMENTAL REQUIREMENTS:
a. Operating Temperature: 0 to 50 degrees Celsius
b. Storage Temperature: -20 to 70 degrees Celsius, minimum
File details come from the government source that posted it. Updated .