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Technical Data Sheet
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3855-3 — TRANSFORMER,AUDIO FREQUENCY

✓ Government record, cited
Vertiv · COMPONENT
PRODUCT OVERVIEW

3855-3: TRANSFORMER,AUDIO FREQUENCY.

Basic surge protected rPDUs deliver reliable power to critical IT equipment within a rack or cabinet and comes equipped with built-in surge protection. Key specifications include width: 18.000 INCHES NOMINAL IN, material: PAPER, thickness: 0.007 INCHES NOMINAL IN, body_width: 1.650 INCHES MAXIMUM IN, head_style: HEXAGON, body_height: 2.145 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5950-00-303-5305, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
3855-3
NSN: 5950-00-303-5305
NIINs: 003035305, 004716072, 010560982, 010966663, 012246946, 013342426, 016166462
FSC: 5950 — Coils and Transformers
CAGE: 73386 — FREED TRANSFORMER CO (USA)
SPECIFICATIONS
width18.000 INCHES NOMINAL IN
materialPAPER
thickness0.007 INCHES NOMINAL IN
body_width1.650 INCHES MAXIMUM IN
head_styleHEXAGON
body_height2.145 INCHES MAXIMUM IN
body_length1.880 INCHES MAXIMUM IN
design_formROLL
head_height3.35 MILLIMETERS MINIMUM AND 3.65 MILLIMETERS MAXIMUM MM
roll_length250.0 FEET NOMINAL FT
current_typeDC
chamfer_angle15.0 DEGREES MINIMUM AND 30.0 DEGREES MAXIMUM
NSN5950-00-303-5305
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: Vertiv TRANSFORMER,AUDIO FREQUENCY TITLE COMPONENT PN 3855-3 MFR Vertiv TRANSFORMER,AUDIO FREQ
KEY FEATURES
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MOUNTING FACILITY QUANTITY: 2 SINGLE GROUP
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INCLOSURE TYPE: HERMETICALLY SEALED
•
INPUT-OUTPUT PHASE RELATIONSHIP: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
•
MOUNTING METHOD: THREADED STUD(S) SINGLE GROUP
•
BODY WIDTH: 2.656 INCHES NOMINAL IN
•
BODY HEIGHT: 2.438 INCHES NOMINAL IN
•
WINDING FUNCTION AND QUANTITY: 1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
•
WINDING SHIELDING METHOD: INTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENT
TECHNICAL CHARACTERISTICS
MOUNTING FACILITY QUANTITY2 SINGLE GROUP
INCLOSURE TYPEHERMETICALLY SEALED
INPUT-OUTPUT PHASE RELATIONSHIPSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
MOUNTING METHODTHREADED STUD(S) SINGLE GROUP
BODY WIDTH2.656 INCHES NOMINAL IN
BODY HEIGHT2.438 INCHES NOMINAL IN
WINDING FUNCTION AND QUANTITY1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
WINDING SHIELDING METHODINTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENT
DISTANCE BETWEEN MOUNTING FACILITY CENTERS1.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
NOMINAL THREAD SIZE0.190 INCHES SINGLE GROUP IN
SUBSTITUTES & CROSS-REFERENCES 1
GA51301Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3855-3?
3855-3 is a TRANSFORMER,AUDIO FREQUENCY manufactured by Vertiv.
What parts can replace 3855-3?
There is 1 known substitute for 3855-3: GA51301. Substitute compatibility should be verified for your specific system.
What is the NSN for 3855-3?
3855-3 is cataloged in the U.S. Government catalog under NSN 5950-00-303-5305. This indicates validated use in U.S. government and defense supply chains.
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