Littelfuse 977 Series Manual do Utilizador descarregar pdf (Página 2)

Introduction to Circuit Protection

Transientology

Specications are subject to change without notice.

Axial Lead and Cartridge Fuses

5x20mm > Time-Lag > 977 Series

977 Series

Please refer to www.littelfuse.com/series/977.html for current information.

Average Time Current CurvesTemperature Rerating Curve

0.001

0.01

0.1

100

1000

10000

0.01 0.1 1

977.500

10 100 1000

9773.15

977.800

977002

977008

97706.3

977005

977004

977010

977012

977016

Current in Amperes

Time in Seconds

Amp Code Amp Rating

Voltage Rating

Interrupting

Rating

Nominal Cold

Resistance

(milli-ohms)

Nominal

Melting

t (A

sec.)

Agency Approvals

.500 0.5 500 450

"!7BD

"!7ED

 0.3 x

  500 450   x

002. 2 500 450 44.5  xx

  500 450   xx

004. 4 500 450   xx

005. 5 500 450   xx

  500 450   xx

  500 450  233 x x

  500 450   x

  500 450   x

  500 450   x

Electrical Characteristic

UUFTUBUYSBUFEDVSSFOU

1 2 3 4

977 Series 1
Transientology 2

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