> SIEMENS>POWER DISTRIBUTION AND LOW VOLTAGE SWITCHGEAR>Other Modular Systems>7LF4444-2 SIEMENS time switch, digital, Expert 4 channels, year, 24V 6MW
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7LF4444-2 SIEMENS time switch, digital, Expert 4 channels, year, 24V 6MW View larger
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7LF4444-2 SIEMENS time switch, digital, Expert 4 channels, year, 24V 6MW

7LF4444-2

SIEMENS

time switch, digital, Expert 4 channels, year, 24V 6MW

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POWER DISTRIBUTION AND LOW VOLTAGE SWITCHGEAR > Other Modular Systems

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ETIM: EC002305 - Digital time switch for distribution board

Value Unit
Radio-controlled (DCF77) (EF003850) -
GPS (global positioning system) (EF002753) -
External programming (EF003846) -
With memory card (EF009768) -
Mounting method (EF000003) DIN rail
Number of channels (EF000259) 4
Supply voltage (EF004127) ['-', '-']V
Voltage type of supply voltage (EF002991) AC/DC
Frequency supply voltage (EF004687) ['0', '60']Hz
Autonomy in hours (EF004721) -
Autonomy in years (EF004720) -
Accuracy per day (EF006325) 0.2s
Text guidance in display (EF005341) true
60 min. program (EF002964) true
24 h program (EF002965) true
Weekly program (EF001184) true
Annual program (EF001185) true
Holiday program (EF002968) true
Impulse program (EF002970) false
Cycle program (EF002971) false
Astro program (EF000224) true
Random program (EF002969) false
Hour meter (EF004533) true
Mains synchronous (EF002973) false
Quartz controlled (EF002974) false
Radio-controlled (EF000888) false
Contact type (EF001587) Change-over contact
Shortest switching time channel 1 (EF004855) 0.016666667min
Number of memory locations (EF000203) 336
Automatic switching summer-/winter time (EF002977) false
Manual operation (EF002978) true
External pushbutton input (EF007754) false
Switching preselection (EF002979) true
Nominal switching current at 250 V AC (EF005126) 16A
Potential free switch contact (EF003626) true
Degree of protection (IP) (EF005474) IP20
Width in number of modular spacings (EF002950) 6
Width (EF000008) 108.0mm
Height (EF000040) 83.0mm
Depth (EF000049) 64.0mm
Shortest switching time channel 2 (EF004856) -min


time switch, digital, Expert 4 channels, year, 24V 6MW
Model
product brand nameSENTRON
Product designationTime-delay switch
Design of the productDigital time switch Expert
Design of the switching functionCO contact
General technical data
Manner of function
● radio-controlledNo
● line-synchronousNo
● quartz-controlledNo
Accuracy / per day0.2 s
Shortest switching time interval / of channel 11 s
Voltage
Control voltage / at AC / rated value
● minimum21.6 V
● maximum26.4 V
Control voltage / at DC / rated value
● minimum21.6 V
● maximum26.4 V
Overvoltage category / acc. to IEC 61010-1III
Supply voltage
Operating voltage / at AC / rated value250 V
Type of voltage / of the supply voltageAC/DC
supply voltage frequency
● maximum60 Hz
● minimum0/50 Hz
Protection class
Protection class IPIP20
Switching capacity
Switching capacity current / at AC / at 250 V / Rated value16 A
Dissipation
Power loss [W] / for rated value of the current / at AC / in hot operating state / per pole4 W
Product details
Product feature
● external switch inputNo
● floating switching contactYes
Product function
● Product function / 60 min time programYes
● Product function / Astro programYes
● Product function / Automatic daylight-saving adjustmentNo
● product function / operating hours counterYes
● Product function / direct operationYes
● Product function / Holiday time programYes
● Product function / Impulse programNo
● Product function / annual time programYes
● Product function / Switching preselectionYes
● Product function / 24-hour time programYes
● Product function / Text guidance in displayYes
● Product function / Weekly time programYes
● Product function / Random time programNo
● Product function / Cyclical time programNo
Number
Number of terminals / with cross-head screw1
number of channels4
Number of memory slots336
Connectable conductor cross-section / in main circuit
● for rigid conductor / maximum4 mm²
● for rigid conductor / minimum1.5 mm²
● for flexible conductor / with core end processing / maximum2.5 mm²
Mechanical Design
Height83 mm
Width108 mm
Depth64 mm
number of width units6
Mounting typeDIN rail
Environmental conditions
Ambient temperature / minimum permissible-20 °C
Ambient temperature / maximum permissible55 °C
Ambient temperature / during storage
● minimum-20 °C
● maximum60 °C
Certificates
● reference code / acc. to DIN EN 61346-2K
● Reference code / acc. to DIN EN 81346-2K
General Product ApprovalDeclaration of Conformityother

VDE

EC/EU-Declaration of Conformity

Environmental Confirmations

Further information
Information- and Downloadcenter (Catalogs, Brochures,…)
Industry Mall (Online ordering system)
Service&Support (Manuals, Certificates, Characteristics, FAQs,...)
Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, ...)
CAx-Online-Generator
Tender specifications


Product
Article Number (Market Facing Number)7LF4444-2
Product Descriptiontime switch, digital, Expert 4 channels, year, 24V 6MW
Product familyNot available
Product Lifecycle (PLM)PM490:Start of final year of support
PLM Effective DateProduct discontinued since: 31.12.2019
Notes
Product is no longer available
Sucessor:Further information about local contact: www.siemens.com/lowvoltage/contact
If you need assistance please contact our local Siemens office
Price data
Price Group13D
Surcharge for Raw MaterialsNone
Metal FactorNone
Delivery information
Export Control RegulationsECCN : N / AL : N
Standard lead time ex-works1 Day/Days
Net Weight (kg)0,427 Kg
Product Dimensions (W x L x H)Not available
Packaging Dimension101,00 x 148,00 x 88,00
Package size unit of measureMM
Quantity Unit1 Piece
Packaging Quantity1
Additional Product Information
EAN4001869335674
UPCNot available
Commodity Code91070000
LKZ_FDB/ CatalogIDLV10.1
Product Group5523
Group CodeP310
Country of originGermany
Compliance with the substance restrictions according to RoHS directiveSince: 01.07.2006
Product classB: return restricted, please contact your Siemens partner/contact
WEEE (2012/19/EU) Take-Back ObligationYes
REACH Art. 33 Duty to inform according to the current list of candidates
There is currently no information on SVHC (Substances of Very High Concern http://echa.europa.eu/web/guest/candidate-list-table) from the supply chain and our established procedures for screening our products for Substances of Very High Concern.We compare our products regularly with the information of the upstream users with regard to the substances indicated in the candidate list in accordance with the requirements of the REACH regulation. As soon as we have new findings, our information will be updated accordingly.
Classifications
Not available

Datasheet - PDF

▲
Title: Size: Type:
PDF CATALOGUE SIEMENS EN.pdf 120 Mbytes
PDF CATALOGUE SIEMENS EN.pdf 104 Mbytes
7LF4444-2 7LF4444-2 EN_7LF4444-2.pdf 148 Kbytes 7LF4444-2 7LF4444-2 EN_7LF4444-2.pdf

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