Siemens Sentron Disconnector – 3LD21031TL51

The siemens sentron’s switch disconnector has numerous possible applications. It has 4-pole configuration with current ratting of 25 a .after the switch disconnects from the grid, they ensure safe activation of all of the electrical equipment. The brand offers a comprehensive portfolio of protection, switching, measuring and monitoring devices, distribution systems as well as switches and sockets for safe and efficient electrical infrastructure in buildings and industry. Operating voltage 690 v ac. Size of the switch disconnector 2. Mechanical life 100000. Electrical life 6000.

Specifications

Version as main switch : Yes
Version as maintenance-/service switch : Yes
Version as safety switch : Yes
Version as emergency stop installation : No
Version as reversing switch : No
Number of switches : 1
Max. rated operation voltage Ue AC (V) : 690
Rated permanent current Iu (A) : 25
Rated permanent current at AC-23, 400 V (A) : 20
Rated permanent current at AC-21, 400 V (A) : 25
Rated operation power at AC-3, 400 V (kW) : 8
Rated short-time withstand current lcw (kA) : 0.64
Rated operation power at AC-23, 400 V (kW) : 10
Number of poles : 4
Number of auxiliary contacts as normally closed contact : 0
Number of auxiliary contacts as normally open contact : 0
Number of auxiliary contacts as change-over contact : 0
Motor drive optional : No
Motor drive integrated : No
Voltage release optional : No
Device construction : Built-in device fixed built-in technique
Suitable for floor mounting : No
Suitable for front mounting 4-hole : Yes
Suitable for front mounting center : No
Color control element : Black
Type of control element : Short thumb-grip
Interlockable : Yes
Type of electrical connection of main circuit : Frame clamp
Degree of protection (IP), front side : IP65