beautypg.com

Littelfuse 837 Series User Manual

Specifications, Panel mount, Inia

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050906

WebSite

www.littelfuse.com

In our continuing strategy to deliver unparalleled circuit protection solutions,

technical expertise and application leadership, we proudly introduce the

WICKMANN Group and its products to the Littelfuse portfolio.

ø15

32

8

10

M12,7x1,5(P0,75)

7,62

±0,1

2,5

3,2

4,8±0,1

R1

ø16

4,45

0,5

SW14

P.

1...4,5

5

Einsatzträger eingesetzt

Renkverschluß

Gerätewand

panel mounting

fuse-carrier inserted

Überstand
distance

bayonet-joint

max.

0,2

-0,1

12

ш12,7

-0,1

-0,1

ш12,7

11,7

-0,15

Ш 9,2

1,

5

ma

x.

20,

5

7

1,

2

Renkverschlußnase
Bayonet-connector-nose

Schlitz für Schraubendreher
Slot for screw-driver

7

1,

2

Schlitz für Schraubendreher
Slot for screw-driver

Renkverschlussnase
Bayonet-connector-nose

Ø 9,2

1,

5

27,4

Note: 1.00 means the number one with two decimal places. 1,000 means the number one thousand.

Specifications are subject

to change without notice

M

M

M

M

M

INIA

INIA

INIA

INIA

INIATURE

TURE

TURE

TURE

TURE

F

F

F

F

F

USEHOLDERS

USEHOLDERS

USEHOLDERS

USEHOLDERS

USEHOLDERS

Holder / No. 821

821

821

821

821

Specifications

Specifications

Specifications

Specifications

Specifications

P a c k a g i n g

P a c k a g i n g

P a c k a g i n g

P a c k a g i n g

P a c k a g i n g

0

bulk (100 pcs.)

Standard

Standard

Standard

Standard

Standard

IEC 60127-6

UL 512

CSA C22.2. No.39

Approvals

Approvals

Approvals

Approvals

Approvals

Mounting

Mounting

Mounting

Mounting

Mounting

12.7mm diameter D-hole or double D-hole

(panel 1mm - 4.5mm)

Admissible torque on plastic hex nut is 1.2Nm

TTTTTe r m i n a l s

e r m i n a l s

e r m i n a l s

e r m i n a l s

e r m i n a l s

Solderable or 4.8mm quick connect - fits 0.5mm

tab

Protection Class & Category

Protection Class & Category

Protection Class & Category

Protection Class & Category

Protection Class & Category

IP 40 (IEC 60529)

PC2 (IEC 60127-6)

Materials

Materials

Materials

Materials

Materials

Holder/Cap: Thermoplastic

Polyamide PA 6.6, UL94 V-0, black

Metal Parts: Copper alloy, corrosion

protected

Terminals: solderable, tinned

Electrical Data (23ºC)

Electrical Data (23ºC)

Electrical Data (23ºC)

Electrical Data (23ºC)

Electrical Data (23ºC)

Rated Voltage: 250V

Rated Current: 6.3A (VDE/SEMKO)

16A (UL/CSA)

Rated Power :

4W (SEMKO)

2.5W (VDE)

Operating T

Operating T

Operating T

Operating T

Operating Temperature

emperature

emperature

emperature

emperature

-25ºC to +70ºC (consider de-rating)

Climatic T

Climatic T

Climatic T

Climatic T

Climatic Test

est

est

est

est

-25ºC/+70ºC/21 days (IEC 60068-2-1...3)

Stock Conditions

Stock Conditions

Stock Conditions

Stock Conditions

Stock Conditions

+10ºC to +60ºC

relative humidity ≤ 75% yearly average,

without dew, maximum value for 30 days - 95%

Vibration Resistance

Vibration Resistance

Vibration Resistance

Vibration Resistance

Vibration Resistance

24 cycles at 15 min. each (IEC 60068-2-6)

10 - 60Hz at 0.75mm amplitude

60 - 2000Hz at 10g acceleration

Contact Resistance

Contact Resistance

Contact Resistance

Contact Resistance

Contact Resistance

≤ 5mΩ

Dielectric Strength

Dielectric Strength

Dielectric Strength

Dielectric Strength

Dielectric Strength

> 1.5 kV

Impulse Voltage

Impulse Voltage

Impulse Voltage

Impulse Voltage

Impulse Voltage

4 kV with 1,2µs/50µs

Insulation Resistance

Insulation Resistance

Insulation Resistance

Insulation Resistance

Insulation Resistance

> 10 MΩ (500VDC, 1 min.)

Solderability

Solderability

Solderability

Solderability

Solderability

235 ºC, 2 sec. (soldering bath) (IEC 60068-2-20)

350 ºC, 3 sec. (soldering iron) (IEC 60068-2-20)

Soldering Heat Resistance

Soldering Heat Resistance

Soldering Heat Resistance

Soldering Heat Resistance

Soldering Heat Resistance

260ºC, 5 sec. (IEC 60068-2-20)

Minimum Cross Section

Minimum Cross Section

Minimum Cross Section

Minimum Cross Section

Minimum Cross Section

Conductor - 2.5mm

2

Marking

Marking

Marking

Marking

Marking

821, 250V, Approvals

Unit Weight

Unit Weight

Unit Weight

Unit Weight

Unit Weight

4.0g (821) / 1.6g (835) / 2.2g (837)

Cap / No. 835

835

835

835

835

Cap / No. 837

837

837

837

837

Flush Mount T

Flush Mount T

Flush Mount T

Flush Mount T

Flush Mount Type

ype

ype

ype

ype

Panel Mount ,

Panel Mount ,

Panel Mount ,

Panel Mount ,

Panel Mount ,
for 5x20mm Fuses

for 5x20mm Fuses

for 5x20mm Fuses

for 5x20mm Fuses

for 5x20mm Fuses

Finger Grip T

Finger Grip T

Finger Grip T

Finger Grip T

Finger Grip Type

ype

ype

ype

ype

Qty.

Qty.

Qty.

Qty.

Qty.

Order

Order

Order

Order

Order

Series

Series

Series

Series

Series

Packaging

Packaging

Packaging

Packaging

Packaging

Number

Number

Number

Number

Number

0000 00

0

Order Info

Order Info

Order Info

Order Info

Order Info