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Yılsa Engineering sources products as genuine items through a wide supplier network. Typical lead time is 7-21 days, with 1-3 business days domestic transit in Türkiye. Current status is confirmed in the quote.

Is Siemens 3KF1408-4LB11 genuine and new?

Yes. This Siemens product is supplied genuine and brand-new, sold with invoice under Yılsa Engineering assurance.

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Key technical specifications are listed on the product page. For the full datasheet, dimensions and compatibility, simply contact Yılsa Engineering.

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Siemens 3KF1408-4LB11

switch disconnector with fuse 80 A, frame size 1, 4-pole, for LV HRC fuse size 000 and 00 lateral operating mechanism lef basic unit without handle, box terminal without fuses

SiemensMFR # 3KF1408-4LB11SKU # YLSO0QSPFNSF8QA

product brand nameSENTRON

product designation3KF switch disconnector with fuses

design of the product3KF switch disconnector with fuses

product version3KF NH

design of the actuating elementwithout

design of handleWithout

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About This Product

switch disconnector with fuse 80 A, frame size 1, 4-pole, for LV HRC fuse size 000 and 00 lateral operating mechanism lef basic unit without handle, box terminal without fuses

Siemens 3KF1408-4LB11

Genuine, certified Siemens product
Fast sourcing through a worldwide supply network
Product selection and compatibility support from our technical team
Equivalent and alternative product suggestions
Quotation and lead time tailored to your request

Specifications

Model

product brand nameSENTRON

product designation3KF switch disconnector with fuses

design of the product3KF switch disconnector with fuses

product version3KF NH

design of the actuating elementwithout

design of handleWithout

direction of actuationFrom left

type of the driving mechanism motor driveNo

number of poles4

size of disconnecting link00 and 000

size of switch disconnector1

size of fuse linkNH000, NH00

mechanical service life (operating cycles) typical15 000

at AC-23 A at 440 V10 000

at AC-23 A at 690 V6 000

at DC-23 A at 440 V1 500

with closed switch for combination switch + fuse at 500 V maximum33 200 A²·s

with closed switch for combination switch + fuse at 400 V maximum33 200 A²·s

with closed switch at 690 V for combination switch + gG fuse maximum40 700 A²·s

of the fuse at 500 V maximum permissible34 000 A²·s

of the gG fuse at 690 V maximum permissible55 000 A²·s

of the aM fuse at 690 V maximum permissible55 000 A²·s

position of the switch operating mechanismleft

fuse systemLV HRC fuse

overvoltage categoryIV

with degree of pollution 2 at DC rated value440 / 3

with degree of pollution 3 at DC rated value440 / 3

surge voltage resistance rated value12 kV

Supply voltage

operating voltage at AC rated value maximum690 V

Protection class

protection class IPIP20

with closed switch with cover or cable lug coverIP20

on the frontIP20

Dissipation

with conventional rated thermal current per pole2.8 W

with conventional rated thermal current per device8.4 W

with conventional rated thermal current without fuse per pole2.8 W

with conventional rated thermal current without fuse per device8.4 W

for rated value of the current at AC in hot operating state per pole2.8 W

of the fuse per fuse maximum8.5 W

Main circuit

operating power at AC-23 A at 500 V rated value55 kW

operational current rated value80 A

Auxiliary circuit

number of connected NC contacts for auxiliary contacts0

number of connected NO contacts for auxiliary contacts0

number of connected CO contacts for auxiliary contacts0

number of CO contacts for auxiliary contacts4

number of NC contacts for auxiliary contacts0

number of NO contacts for auxiliary contacts0

suitability for use main switchYes

suitability for use switch disconnectorYes

suitability for use EMERGENCY OFF switchYes

suitability for use maintenance/repair switchYes

product feature interlockNo

product function phase failure monitoringNo

voltage triggerNo

undervoltage releaseNo

undervoltage release with leading contactNo

product feature sealableYes

product extension auxiliary switchYes

product extension optional locking capabilityYes

product extension optional motor driveNo

product extension optional fuse monitoringYes

fuse monitoringNo

overvoltage protection monitoringNo

Short circuit

short-circuit current making capacity (Icm) for switch disconnector at 690 V AC/440 V DC without fuse link rated value minimum3.55 kA

at 500 V by gG fuse rated value100 kA

at 690 V by gG fuse rated value100 kA

Connections

arrangement of electrical connectors for main current circuitTop and bottom

minimum5 N·m

maximum6.5 N·m

type of connectable conductor cross-sections with flexible busbar2x (0.8 x 9 mm²)

finely stranded with core end processing1x (6 ... 25 mm²)

stranded1x (6 ... 25 mm²)

type of electrical connection for main current circuitbox terminal

Mechanical Design

height122 mm

width203.8 mm

depth130.5 mm

fastening methodFloor mounting and snap-on mounting on 35 mm standard mounting rail

4-hole front mountingNo

front mounting with central attachmentNo

rail mountingYes

mounting positionany

Net Weight1.972 kg

Environmental conditions

minimum-25 °C

maximum70 °C

minimum-50 °C

maximum80 °C

Accessories 50

Genuine accessories that can be used with the Siemens 3KF1408-4LB11 motor and are supplied separately are listed below. Click a code to open the accessory page and see the other compatible motors.

Part no	Description	Compatible motors
3KD9103-5	Aksesuar
3KF9112-0BA00	Aksesuar
3KF9212-0AB00	Aksesuar
3KD9103-6	Aksesuar
3KD9103-7	Aksesuar
3KF9112-0AA00	Aksesuar
3KF9112-0CA00	Aksesuar
3KF9112-1AA00	Aksesuar
3NA3822-7	Seçmeli zorunlu ürün
3NA3824-7	Seçmeli zorunlu ürün
3NA6820-4	Seçmeli zorunlu ürün
3NA6822-4	Seçmeli zorunlu ürün
3NA6824-4	Seçmeli zorunlu ürün
3NA6824-4KK	Seçmeli zorunlu ürün
3NA6820-6	Seçmeli zorunlu ürün
3NA6820-6KJ	Seçmeli zorunlu ürün
3NA6822-6	Seçmeli zorunlu ürün
3NA6824-6	Seçmeli zorunlu ürün
3NA6820	Seçmeli zorunlu ürün
3NA6822	Seçmeli zorunlu ürün
3NA6824	Seçmeli zorunlu ürün
3NA6824-7	Seçmeli zorunlu ürün
3NA7820-6	Seçmeli zorunlu ürün
3NA7820-6KJ	Seçmeli zorunlu ürün
3NA7822-6	Seçmeli zorunlu ürün
3NA7824-6	Seçmeli zorunlu ürün
3NA7820	Seçmeli zorunlu ürün
3NA7822	Seçmeli zorunlu ürün
3NA7824	Seçmeli zorunlu ürün
3NA7824-7	Seçmeli zorunlu ürün
3ND1820	Seçmeli zorunlu ürün
3NA3820-7	Seçmeli zorunlu ürün
3NA3820-6	Seçmeli zorunlu ürün
3NA3824-6	Seçmeli zorunlu ürün
3ND1822	Seçmeli zorunlu ürün
8UD1171-2AD11	Seçmeli zorunlu ürün
8UD1171-2AF21	Seçmeli zorunlu ürün
8UD1171-2AF25	Seçmeli zorunlu ürün
3KF9101-1AA00	Seçmeli zorunlu ürün
3KF9101-2AA00	Seçmeli zorunlu ürün
3NA3822	Seçmeli zorunlu ürün
3NA3824	Seçmeli zorunlu ürün
3NA3820	Seçmeli zorunlu ürün
3NE1817-0	Seçmeli zorunlu ürün
3NE1818-0	Seçmeli zorunlu ürün
3NE1820-0	Seçmeli zorunlu ürün
3NA3820-6KJ	Seçmeli zorunlu ürün
3NA3822-6	Seçmeli zorunlu ürün
8UD1171-2AD15	Seçmeli zorunlu ürün
3ND1824	Seçmeli zorunlu ürün