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PSR SERIES HIGH-SPEED SQUARE BODY FUSES

Document Number:

OL-PSR073FL0000 Rev. A and OL-PSR073FS0000 Rev. A

FL Stud Size:

M12x1.75-6H 13.0 [0.51]

FS Stud Size:

1/2-13 UNC - 2B

13.0 [0.51]

Recommended Torque:

45Nm

Dimensions (73 Case Size)

Millimeters [inches]

CHICAGO, ILLINOIS 60631

3RD ANGLE

PROJECTION

A

OL-PSR073FL0000

TITLE

C

DRW

DATE

GRAMS/PIECE

FINISH GOOD WT

TVESELSK

2/4/2016

MATL SPEC

FINISH

UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN

BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATING. TOLERANCING

TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994

DENOTES CRITICAL CHARACTERISTICS.

DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE

DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION

OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT

AND TRACKING TO BE DEFINED IN

LITTELFUSE INSPECTION INSTRUCTIONS.

DENOTES CP DIMENSIONS, -MINIMUM CP VALUE

MUST BE WITHIN THE DIMENSIONAL LIMITATIONS

SHOWN ON DRAWING AND INITIALLY LOCATED TO

ALLOW FOR MAXIMUM TOOL LIFE.

CPK



CP

SHEET 1 OF 1

SCALE

SQUARE BODY 73 CASE - METRIC THREAD OUTLINE

NTS

REVISION

REV

DATE

DESCRIPTION

A

01/10/2019

518685GCP - RELEASED -TV

106.9 [4.21]

73.2 [2.88] REF

1/4" Q.C.

TERMINAL

VISUAL INDICATOR

M4x0.7 THREAD

10.00 [.394]

STUD LENGTH

MOUNTING SPECS:

STUD SIZE: M12x1.75-6H

 13.0 [0.51]

STUD TORQUE: 45Nm

FUSE WITH MICROSWITCH

73.5

[2.89]

73.5

[2.89]

79.5 [3.13] REF

30 [1.2]

74.0 - 76.0

[2.91 - 2.99]

SEE STUD SIZE

CHICAGO, ILLINOIS 60631

3RD ANGLE

PROJECTION

A

OL-PSR073FL0000

TITLE

C

DRW

DATE

GRAMS/PIECE

FINISH GOOD WT

TVESELSK

2/4/2016

MATL SPEC

FINISH

UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN

BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATING. TOLERANCING

TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994

DENOTES CRITICAL CHARACTERISTICS.

DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE

DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION

OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT

AND TRACKING TO BE DEFINED IN

LITTELFUSE INSPECTION INSTRUCTIONS.

DENOTES CP DIMENSIONS, -MINIMUM CP VALUE

MUST BE WITHIN THE DIMENSIONAL LIMITATIONS

SHOWN ON DRAWING AND INITIALLY LOCATED TO

ALLOW FOR MAXIMUM TOOL LIFE.

CPK



CP

SHEET 1 OF 1

SCALE

SQUARE BODY 73 CASE - METRIC THREAD OUTLINE

NTS

REVISION

REV

DATE

DESCRIPTION

A

01/10/2019

518685GCP - RELEASED -TV

106.9 [4.21]

73.2 [2.88] REF

1/4" Q.C.

TERMINAL

VISUAL INDICATOR

M4x0.7 THREAD

10.00 [.394]

STUD LENGTH

MOUNTING SPECS:

STUD SIZE: M12x1.75-6H

 13.0 [0.51]

STUD TORQUE: 45Nm

FUSE WITH MICROSWITCH

73.5

[2.89]

73.5

[2.89]

79.5 [3.13] REF

30 [1.2]

74.0 - 76.0

[2.91 - 2.99]

SEE STUD SIZE

CHICAGO, ILLINOIS 60631

3RD ANGLE

PROJECTION

A

OL-PSR073FL0000

TITLE

C

DRW

DATE

GRAMS/PIECE

FINISH GOOD WT

TVESELSK

2/4/2016

MATL SPEC

FINISH

UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN

BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATING. TOLERANCING

TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994

DENOTES CRITICAL CHARACTERISTICS.

DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE

DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION

OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT

AND TRACKING TO BE DEFINED IN

LITTELFUSE INSPECTION INSTRUCTIONS.

DENOTES CP DIMENSIONS, -MINIMUM CP VALUE

MUST BE WITHIN THE DIMENSIONAL LIMITATIONS

SHOWN ON DRAWING AND INITIALLY LOCATED TO

ALLOW FOR MAXIMUM TOOL LIFE.

CPK



CP

SHEET 1 OF 1

SCALE

SQUARE BODY 73 CASE - METRIC THREAD OUTLINE

NTS

REVISION

REV

DATE

DESCRIPTION

A

01/10/2019

518685GCP - RELEASED -TV

106.9 [4.21]

73.2 [2.88] REF

1/4" Q.C.

TERMINAL

VISUAL INDICATOR

M4x0.7 THREAD

10.00 [.394]

STUD LENGTH

MOUNTING SPECS:

STUD SIZE: M12x1.75-6H

STUD TORQUE: 45Nm

FUSE WITH MICROSWITCH

73.5

[2.89]

73.5

[2.89]

79.5 [3.13] REF

74.0 - 76.0

[2.91 - 2.99]

SEE STUD SIZE

CHICAGO, ILLINOIS 60631

3RD ANGLE

PROJECTION

A

OL-PSR073FL0000

TITLE

C

DRW

DATE

GRAMS/PIECE

FINISH GOOD WT

TVESELSK

2/4/2016

MATL SPEC

FINISH

UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN

BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATING. TOLERANCING

TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994

DENOTES CRITICAL CHARACTERISTICS.

DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE

DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION

OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT

AND TRACKING TO BE DEFINED IN

LITTELFUSE INSPECTION INSTRUCTIONS.

DENOTES CP DIMENSIONS, -MINIMUM CP VALUE

MUST BE WITHIN THE DIMENSIONAL LIMITATIONS

SHOWN ON DRAWING AND INITIALLY LOCATED TO

ALLOW FOR MAXIMUM TOOL LIFE.

CPK



CP

SHEET 1 OF 1

SCALE

SQUARE BODY 73 CASE - METRIC THREAD OUTLINE

NTS

REVISION

REV

DATE

DESCRIPTION

A

01/10/2019

518685GCP - RELEASED -TV

106.9 [4.21]

73.2 [2.88] REF

1/4" Q.C.

TERMINAL

VISUAL INDICATOR

M4x0.7 THREAD

10.00 [.394]

STUD LENGTH

MOUNTING SPECS:

STUD SIZE: M12x1.75-6H

STUD TORQUE: 45Nm

FUSE WITH MICROSWITCH

73.5

[2.89]

73.5

[2.89]

79.5 [3.13] REF

74.0 - 76.0

[2.91 - 2.99]

SEE STUD SIZE