Siemens

Siemens Load disconnector 3LD3, main switch 3-pole, 40A Part number 3LD3348-0TK53

EAN / Barcode 4001869551456
Product Type Control Panel
Product Class Switch disconnector (low voltage)
ETIM Class Switch disconnector (low voltage)
In Stock
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Product Description

Load disconnector 3LD3

The Load disconnector 3LD3 is designed for the safe shutdown of loads in various applications such as three-phase motors and control cabinets.

Technical details:

  • Rated operating capacity at AC-23 A at 400 V: 18.5 kW
  • Main switch: 3-pole
  • Iu: 40 A
  • Floor mounting
  • Basic switch with door coupling
  • Central hole mounting: 22.5mm
  • Rotary actuator: red / yellow, 66 x 66 mm
  • Optimum disconnection of 16 A of 63 A from the power supply
  • Modular design for fast and easy mounting of auxiliary switches, N-PE terminal, or 4th pole
  • Available in a wide range of variants for front mounting, mounting plate, DIN rail, or installation in distribution boards
  • 3LD2 is available in variants for DC applications

Customer benefits:

  • Safe shutdown of loads in many areas, including small machines like saws, compressors, and pumps
  • Versatile due to international approvals
  • One mechanical frame size for five electrical frame sizes
  • Options for direct or door-coupling rotary operating mechanism for enhanced safety

Technical Specifications

Colour control elementRed
Compliance/StandardsUL 60947-4
country_of_originGermany
Degree of protection (IP), front sideIP65
Degree of protection (NEMA)Other
Depth380 mm
descriptionLoad disconnector 3LD3, Iu 40 A Main switch 3-pole Rated operating capacity at AC-23 A at 400 V 18.5 kW floor mounting Basic switch with door coupling Central hole mounting 22.5mm Rotary actuator red / yellow 66 x 66 mm
Device constructionBuilt-in device fixed built-in technique
Height60 mm
InterlockableYes
IP RatingIP65
IP Rating DetailedIP65 degree of protection NEMA rating 1, 3R, 4X, 12 protection class IP on the front IP65 Dissipation power loss
Max Frequency501 /h
Max. rated operation voltage Ue AC690 V
Number of poles3
Number of switches1
Part Depth (mm)420,00mm
Part Height (mm)83,00mm
Part Width (mm)68,00mm
Rated operation power at AC-23, 400 V19 kW
Rated operation power at AC-3, 400 V12 kW
Rated permanent current at AC-21, 400 V40 A
Rated permanent current at AC-23, 400 V36 A
Rated permanent current Iu40 A
Rated short-time withstand current lcw1 kA
Suitable for floor mountingYes
Suitable for front mounting centreYes
Type of control elementShort thumb-grip
Type of electrical connection of main circuitFrame clamp
Version as emergency stop installationYes
Version as main switchYes
Version as maintenance-/service switchYes
Version as safety switchYes
Weight (g)0,348 Kg
Width36 mm
View complete specifications on Siemens

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