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POWER METERING
PRECISION SHUNTS

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These components have E-beam welded manganese-copper alloy elements giving high strength, stability and
reliability.  Low thermal EMF and TCR.  Small size and minimal power loss.  Minimal heat generation and surface
temperature due to small total resistance.  Propriety processing technique allows very low resistance values.
Ideally suited for KWh meters and sampling sensor shunts.  These units are also suitable for custom design.

SPECIFICATIONS

Model Power Rating Resistance Tolerance
PMS 3W 100µR-500µR +-1%, +-5%, +-10%

CHARACTERISTICS                                                  Values in [ ] mean change in ohmic value after test

Temperature Range -55C-125C
Temperature Coefficient +-50ppm/C
Internal Heat Resistance <10K/W
Load Life Deviation <0.5% after 2000hrs. @80C

DIMENSIONS

Resistance Value Component Thickness Rated Current
100µR 2.0mm 100A
120µR 1.5mm 80A
150µR 1.5mm 60A
200µR 1.2mm 60A
250µR 1.2mm 40A
300µR 1.0mm 40A
350µR 1.0mm 30A
500µR 1.0mm 30A

DERATING CURVE

ORDERING PROCEDURE EXAMPLE

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Tel:82-32-817-4325 Fax:82-32-817-4329

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