3LD Switch Disconnector, Emergency Stop Switch, 4-Pole, 250 A, Operating Power …

£620.41 inc VAT £517.01 ex VAT

Description

Detail

SENTRON, Switch disconnector 3LD, emergency switching-off switch, 4- pole, Iu=250 A, operating power / at AC-23 A 400 V: 132 kW, front-mounted, knob-operated mechanism, red/yellow, 4-hole mounting of the handle The 3LD main and emergency switching-off switch as a maintenance switch for safe disconnection of loads in a wide variety of environments. There are numerous possible applications for the 3LD disconnector units. After disconnects from the grid, they ensure safe activation of all of the electrical equipment, thus switch, for example, to three-phase motors, but also air-conditioning and ventilation systems. 3LD have proven themselves in many fields, particularly in processing machines in mechanical and conveyor system engineering, and in the chemical sector and food and beverage industries. Key features of the Siemens 3LD main and emergency off switches: 1. Modular design, fast and easy mounting of auxiliary switches, N-PE terminal, or 4-pole 2. Versatile and global applications possible thanks to international IEC, UL and marine approvals. 3. Degree of protection IP65 with encapsulated housing for outdoor applications. 4. Can be used for DC applications. 5. Types of mounting: Front mounting, mounting plate, standard mounting rail. 6. Optimized disconnect from 16 A to 250 A with lockable rotary operating mechanism.

Specification

  • Version as maintenance-/service switch : Yes
  • Rated operating voltage : – V
  • Max. rated operation voltage Ue AC : 690 V
  • Interlockable : Yes
  • Motor drive integrated : No
  • Version as main switch : Yes
  • Version as emergency stop installation : Yes
  • Version as safety switch : Yes
  • Suitable for ground mounting : No
  • Rated operation power at AC-3, 400 V : 110 kW
  • Suitable for front mounting 4-hole : Yes
  • Suitable for front mounting centre : No
  • Suitable for distribution board installation : No
  • Suitable for intermediate mounting : No
  • Motor drive optional : No
  • Voltage release optional : No
  • Version as reversing switch : No
  • Number of poles : 4
  • Colour control element : Red
  • Type of control element : Toggle
  • Degree of protection (IP), front side : IP65
  • Number of auxiliary contacts as change-over contact : 0
  • Number of switches : 1
  • Number of auxiliary contacts as normally open contact : 0
  • Device construction : Built-in device fixed built-in technique
  • Rated permanent current at AC-21, 400 V : 250 A
  • Type of electrical connection of main circuit : Frame clamp
  • Number of auxiliary contacts as normally closed contact : 0
  • Rated permanent current Iu : 250 A
  • Rated permanent current at AC-23, 400 V : 224 A
  • Rated short-time withstand current lcw : 4 kA
  • Conditioned rated short-circuit current Iq : – kA
  • Switching power at 400 V : – kW
  • Rated operation power at AC-23, 400 V : 132 kW