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

£691.08 inc VAT £575.90 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, floor mounting with door coupling, 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

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