Siemens Switch disconnector, rotary operated, 3-pole, 400V
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Siemens

Siemens Switch disconnector, rotary operated, 3-pole, 400V Part number 3LD2766-1GP53

EAN / Barcode 4011209524392
Product Type Control Panel
Product Class Switch disconnector (low voltage)
ETIM Class Switch disconnector (low voltage)
In Stock
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Product Description

Sentron

The SENTRON switch disconnector 3LD serves as an EMERGENCY-OFF switch designed for safe shutdown of loads, including three-phase motors and ventilation systems.

Technical details:

  • Type: Switch disconnector 3LD
  • Function: EMERGENCY-OFF switch
  • Poles: 3-pole
  • Iu: 100 A
  • Operational power at AC-23 A at 400 V: 37 kW
  • Enclosure: Molded-plastic for metric cable gland
  • Contacts: 1 NC, 1 NO
  • Operating mechanism: Rotary
  • Color: Red/yellow
  • Degree of protection: IP65
  • Approvals: IEC, UL, CCC, shipbuilding

Customer benefits:

  • Optimum disconnection of 16 A of 250 A from the power supply due to the locking capability of the rotary operating mechanism.
  • Fast and easy mounting of auxiliary switches, N-PE terminal, or 4th pole.
  • Versatile and can be used worldwide.
  • Available in a wide range of variants for different mounting options.
  • End-to-end safety for users and systems.

Technical Specifications

Colour control elementRed
Compliance/StandardsUL 60947-4
country_of_originGermany
Degree of protection (IP), front sideIP65
Degree of protection (NEMA)Other
Depth181 mm
descriptionSENTRON, Switch disconnector 3LD, emergency switching-off switch, 3- pole, Iu: 100 A, operating power / at AC-23 A 400 V: 37 kW, Molded plastic encapsulation for metric cable gland, 1 NC, 1 NO, rotary operating mechanism, red/yellow
Device constructionBuilt-in device fixed built-in technique
Height302 mm
InterlockableYes
IP RatingIP65
IP Rating DetailedIP65 degree of protection NEMA rating 1, 4X, 12 protection class IP on the front IP65 Dissipation power loss
Max Frequency501 /h
Max. rated operation voltage Ue AC690 V
Number of auxiliary contacts as normally closed contact1
Number of auxiliary contacts as normally open contact1
Number of poles3
Number of switches1
Part Depth (mm)193,00mm
Part Height (mm)310,00mm
Part Width (mm)220,00mm
Rated operation power at AC-23, 400 V37 kW
Rated operation power at AC-3, 400 V30 kW
Rated permanent current at AC-21, 400 V100 A
Rated permanent current at AC-23, 400 V70 A
Rated permanent current Iu100 A
Rated short-time withstand current lcw2 kA
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)1,829 Kg
Width212 mm
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