3M251 — TRANSFORMER,CURRENT

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

3M251: TRANSFORMER,CURRENT.

The TRANSFORMER,CURRENT is a the manufacturer industrial component. Key specifications include body_width: 1.218 INCHES NOMINAL IN, body_height: 4.000 INCHES NOMINAL IN, body_length: 3.750 INCHES NOMINAL IN, inclosure_type: FULLY INCLOSED, frequency_rating: 60.0 HERTZ MINIMUM AND 400.0 HERTZ MAXIMUM SINGLE COMPONENT, special_features: PRIMARY RATED BUT NOT INCLUDED; MOUNTING BRACKETS ARE OPTIONAL. This part is cataloged in the U.S.

Government catalog under NSN 5950-01-150-8559, 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

3M251

NSN: 5950-01-150-8559
FSC: 5950 — Coils and Transformers
CAGE: 12670 — SQUARE D CO ELECTROMAGNETIC INDUSTRIES DIV (USA)

SPECIFICATIONS

body_width	1.218 INCHES NOMINAL IN
body_height	4.000 INCHES NOMINAL IN
body_length	3.750 INCHES NOMINAL IN
inclosure_type	FULLY INCLOSED
frequency_rating	60.0 HERTZ MINIMUM AND 400.0 HERTZ MAXIMUM SINGLE COMPONENT
special_features	PRIMARY RATED BUT NOT INCLUDED; MOUNTING BRACKETS ARE OPTIONAL
reliability_indicator	NOT ESTABLISHED
winding_operating_current	250.0 AMPERES AC NOMINAL SINGLE COMPONENT SINGLE PRIMARY
terminal_type_and_quantity	2 SCREW
winding_function_and_quantity	1 SECONDARY SINGLE COMPONENT
input-output_phase_relationship	SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
maximum_transformer_power_rating	12.5 VOLT-AMPERE SINGLE COMPONENT
NSN	5950-01-150-8559

COMPONENT DIAGRAM

KEY FEATURES

•

INCLOSURE TYPE: FULLY INCLOSED

•

INPUT-OUTPUT PHASE RELATIONSHIP: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT

•

BODY WIDTH: 1.218 INCHES NOMINAL IN

•

BODY HEIGHT: 4.000 INCHES NOMINAL IN

•

MAXIMUM TRANSFORMER POWER RATING: 12.5 VOLT-AMPERE SINGLE COMPONENT

•

WINDING FUNCTION AND QUANTITY: 1 SECONDARY SINGLE COMPONENT

•

BODY LENGTH: 3.750 INCHES NOMINAL IN

•

WINDING OPERATING CURRENT: 5.0 AMPERES AC NOMINAL SINGLE COMPONENT SINGLE SECONDARY

TECHNICAL CHARACTERISTICS

INCLOSURE TYPE	FULLY INCLOSED
INPUT-OUTPUT PHASE RELATIONSHIP	SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
BODY WIDTH	1.218 INCHES NOMINAL IN
BODY HEIGHT	4.000 INCHES NOMINAL IN
MAXIMUM TRANSFORMER POWER RATING	12.5 VOLT-AMPERE SINGLE COMPONENT
WINDING FUNCTION AND QUANTITY	1 SECONDARY SINGLE COMPONENT
BODY LENGTH	3.750 INCHES NOMINAL IN
WINDING OPERATING CURRENT	5.0 AMPERES AC NOMINAL SINGLE COMPONENT SINGLE SECONDARY
WINDING OPERATING CURRENT	250.0 AMPERES AC NOMINAL SINGLE COMPONENT SINGLE PRIMARY
RELIABILITY INDICATOR	NOT ESTABLISHED

OTHER ITEMS IN FSC 5950 — Coils and Transformers

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5950-00-000-0146 5950-00-001-1372 5950-00-001-1386 5950-00-001-1410 5950-00-001-1411 5950-00-001-1412 5950-00-001-1413 5950-00-001-1414

SUBSTITUTES & CROSS-REFERENCES 2

1621-3-250-5AReference document

Same NSN cross-reference

Reference document — Design control — primary reference

700333 PIECE 22Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

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 3M251?

3M251 is a TRANSFORMER,CURRENT.

What parts can replace 3M251?

There are 2 known substitutes for 3M251: 1621-3-250-5A, 700333 PIECE 22. Substitute compatibility should be verified for your specific system.

What is the NSN for 3M251?

3M251 is cataloged in the U.S. Government catalog under NSN 5950-01-150-8559. This indicates validated use in U.S. government and defense supply chains.

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