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

£515.86 inc VAT £429.88 ex VAT

Description

Detail

SENTRON, Switch disconnector 3LD, emergency switching-off switch, 3- 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

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