PartsTable
Technical Data Sheet
PartsTable / MRO / 300-1
300-1 ✓ Verified by PartsTable
APC · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Stranded for flexible routing, solid for conduit THHN/THWN dual-rated — check both tables
Ampacity depends on installation method
PRODUCT OVERVIEW

American Power Conversion provides protection against many of the primary causes of data loss, hardware damage and downtime. APC, known for Legendary Reliability™, sets the standard for quality, innovation and support for power protection solutions from desktop systems to data center operations to entire facilities. Its comprehensive solutions, which are designed for both home and corporate environments, improve the manageability, availability and performance of sensitive electronic, network, communication and industrial equipment of all sizes.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6145-00-251-3542, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
MRO→ MRO_GENERAL→ 300-1
NSN: 6145-00-251-3542
FSC: 6145
CAGE: 71700 — GENERAL CABLE INDUSTRIES INC (USA)
SPECIFICATIONS
overall_width8.00 INCHES NOMINAL IN
overall_length5.00 INCHES NOMINAL IN
mounting_methodUNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
special_featuresNON WOVEN CLOTH; SATURATED WITH BENZALKONIUM CHLORIDE; WILL NOT HARM SENSITIVE RUBBER FACE-PIECE; INVIDUALLY PRE-PACKAGED, 100 PER BOX
unit_package_typeBOX
unit_package_quantity100
end_item_identificationBOAT, WORK, N
mounting_facility_patternFOUR POSITION RECTANGULAR SINGLE MOUNTING FACILITY
contact_load_current_rating600.0 AMPERES MOTOR LOAD DC AT SEA LEVEL
individual_section_quantity2
contact_voltage_rating_in_volts32.0 DC AT SEA LEVEL
general_characteristics_item_descriptionUNIVERSAL ROUND FILE TYPE; SQUARE HOOD; WIRE FRAME
NSN6145-00-251-3542
COMPONENT DIAGRAM
WIRE / CABLE — AMPACITY DEPENDS ON INSTALLATION CROSS-SECTION JACKET WIRE SPECIFICATIONS Conductor Size: — Conductor Count: — Voltage Rating: — Insulation: — Temp Rating: — PN: 300-1 · APC ⚠ VERIFY BEFORE ORDERING Ampacity depends on installation method — conduit ≠ free air ≠ underground. Same wire, different ratings. AWG sizing is inverse — smaller number = thicker wire (4 AWG > 12 AWG) ✓ BROKER TIP Stranded = flexible routing and vibration resistance. Solid = fixed conduit runs only. THHN/THWN = dual rated — check both dry and wet ampacity tables PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
ROUND CONDUCTOR SIZE: 18 AWG ALL CONDUCTORS
•
MATERIAL: RUBBER NATURAL FIRST POSITION PRIMARY INSULATION ALL CONDUCTORS
•
STRAND AWG SIZE PER CONDUCTOR: 34 ALL CONDUCTORS
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-I-3930,TYPE IS MIL SPEC SINGLE MATERIAL RESPONSE FIRST POSITION PRIMARY INSULATION ALL CONDUCTORS
•
VOLTAGE RATING: 300.0 AC MAXIMUM RATED WORKING VOLTAGE ALL CONDUCTORS
•
CROSS-SECTIONAL WIDTH: 0.285 INCHES NOMINAL IN
•
CROSS-SECTIONAL HEIGHT: 0.150 INCHES NOMINAL IN
•
CONDUCTOR FORM: STRANDED ALL CONDUCTORS
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
TECHNICAL CHARACTERISTICS (FLIS)
ROUND CONDUCTOR SIZE18 AWG ALL CONDUCTORS
MATERIALRUBBER NATURAL FIRST POSITION PRIMARY INSULATION ALL CONDUCTORS
STRAND AWG SIZE PER CONDUCTOR34 ALL CONDUCTORS
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-I-3930,TYPE IS MIL SPEC SINGLE MATERIAL RESPONSE FIRST POSITION PRIMARY INSULATION ALL CONDUCTORS
VOLTAGE RATING300.0 AC MAXIMUM RATED WORKING VOLTAGE ALL CONDUCTORS
CROSS-SECTIONAL WIDTH0.285 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT0.150 INCHES NOMINAL IN
CONDUCTOR FORMSTRANDED ALL CONDUCTORS
CROSS-SECTIONAL SHAPE STYLEOVAL
CONDUCTOR QUANTITY2
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
3001Upgraded Successor
successor cross-reference
successor
235-451Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 300-1?
300-1 is a CAPACITOR,FIXED,MICA DIELECTRIC manufactured by APC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 300-1?
There are 2 known substitutes for 300-1: 3001, 235-451. Substitute compatibility should be verified for your specific system.
Is 300-1 still available?
300-1 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026