Switch Disconnect 500 A Size 4 4 3KD4440-0QE20-0

£813.68 inc VAT £678.07 ex VAT

Description

Detail

Switch disconnector 500 A, Size 4, 4-pole Front operating mechanism center Basic unit without handle flat terminal 3KD switch disconnector up to 1600 A as efficient master, emergency stop or maintenance switch. 3KD switch disconnectors up to 1600 A from Siemens offer reliable operator protection and ensure high plant availability in industry, infrastructure and buildings. As main, EMERGENCY OFF or maintenance switches, 3KD switch disconnectors reliably connect and disconnect live electrical equipment and provide a safety isolating function and isolating distance in low-voltage circuits. 1. Reliable protection from electrical accidents. 2. Rugged technology for high system availability. 3. Wide range of applications with variable connection and operating mechanism types. 4. Simple retrofitting of additional functions with an extensive range of accessories. 5. Quick installation on the standard mounting rail with frame sizes up to 200 A. 6. Efficient engineering with extensive CAx data. 7. Simple documentation with the manual configurator. 8. Suitable for wind power and solar plants.

Specification

  • Switching power at 400 V : 280 kW
  • Interlockable : No
  • Suitable for front mounting centre : No
  • Suitable for front mounting 4-hole : No
  • Suitable for ground mounting : Yes
  • Voltage release optional : No
  • Motor drive integrated : No
  • Motor drive optional : No
  • Version as reversing switch : No
  • Version as emergency stop installation : Yes
  • Version as safety switch : Yes
  • Version as maintenance-/service switch : Yes
  • Version as main switch : Yes
  • Rated operation power at AC-23, 400 V : 250 kW
  • Degree of protection (IP), front side : IP00
  • Max. rated operation voltage Ue AC : 1000 V
  • Rated permanent current at AC-21, 400 V : 500 A
  • Rated short-time withstand current lcw : 30 kA
  • Rated permanent current Iu : 500 A
  • Rated permanent current at AC-23, 400 V : 500 A
  • Number of auxiliary contacts as normally closed contact : 8
  • Number of poles : 4
  • Number of auxiliary contacts as normally open contact : 8
  • Number of switches : 1
  • Number of auxiliary contacts as change-over contact : 0
  • Type of control element : None
  • Type of electrical connection of main circuit : Flat plug-in connection
  • Device construction : Built-in device fixed built-in technique