Littelfuse 461 Series Manual do Utilizador descarregar pdf (Página 2)

Speciﬁcations are subject to change without notice.

Revised: 12/19/13

Surface Mount Fuses

Surge Resistant > 461 Series TeleLink

Fuse

Electrical Speciﬁcations by Item

Ampere

Rating

(A)

Amp Code

Max

Voltage

Rating

(V)

Interrupting

Rating

Nominal Cold

Resistance (Ohms)

Nominal Melting

t (A

sec)

Agency Approvals

0.500 .500 600

60 A @600 VAC

100 A @80 VDC

0.560 0.840

x x

1.25 1.25 600 0.110 16.5

x x

2.00 002. 600 0.050 17. 5

x x

t is calculated at 10 msecs. or less. I

t at 10 times rated current has a typical value of: 24 A

sec (2.0A), 22 A

sec (1.25A), 1.3 A

sec (0.5A).

• Typicalinductance<40nHupto500MHz.

• Resistancechanges0.5%forevery°C.

• Resistanceismeasuredat10%ratedcurrent.

GR 1089 Inter-building requirements

GR 1089 1st level lighting surge inter-building

(Equipment under test can not be damaged and must

continue to operate properly)

Surge

Minimum

Peak

Voltage

(V)

Minimum

Peak

Current

(A)

Max.

Rise/Min.

Decay

(µs)

Repetitions

Each

Polarity

Fuse

Choices

1 600 100 10/1000 25 1.25, 2.0

2 1000 100 10/360 25 1.25, 2.0

3 1000 100 10/1000 25 1.25, 2.0

4 2500 500 2/10 10 1.25, 2.0

5 1000 25 10/360 5 0.5, 1.25, 2.0

GR 1089 2nd level lightning surge telecom port

(Equipment under test shall not become a ﬁre or

electrical safety hazard)

Surge

Minimum

Peak

Voltage

(V)

Minimum

Peak

Current (A)

Max.

Rise/Min.

Decay

(µs)

Repe-

titions

Each

Polarity

Fuse

Choices

1 5000 500 2/10 1 0.5, 1.25, 2.0

Alter-

native

5000 500/8=625 8/10 1 0.5, 1.25, 2.0

If sufﬁcient series resistance is used, then the 0.5 fuse may be used in test conditions 1-4.

The 0.5 fuse will open during these test conditions. The 1.25 & 2.0 will not open thus

providing operational compliance.

Average Time Current Curves

10001001010.1

0.001

0.01

0.1

100

CURRENT IN AMPERES

TIME IN SECONDS

1.25A

.500A

Temperature Rerating Curve

Note:

1. Rerating depicted in this curve is in addition to the standard rerating of 25% for

continuous operation.

1 2 3 4

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