Number of auxiliary contacts as normally open contact
0
Number of auxiliary contacts as normally closed contact
0
Rated permanent current Iu
100 A
Number of poles
3
Rated operating voltage
UN V
Conditioned rated short-circuit current Iq
UN kA
Number of auxiliary contacts as change-over contact
0
Number of switches
1
Interlockable
Yes
Motor drive integrated
No
Version as emergency stop installation
No
Version as main switch
Yes
Version as safety switch
Yes
Version as maintenance-/service switch
Yes
Rated operation power at AC-23, 400 V
37 kW
Rated short-time withstand current lcw
2 kA
Colour control element
Black
Suitable for floor mounting
No
Suitable for front mounting 4-hole
Yes
Suitable for front mounting centre
No
Suitable for distribution board installation
-
Suitable for intermediate mounting
-
Max. rated operation voltage Ue AC
690 V
Motor drive optional
No
Voltage release optional
No
Rated permanent current at AC-21, 400 V
100 A
Switching power at 400 V
UN kW
Version as reversing switch
No
Rated permanent current at AC-23, 400 V
70 A
Degree of protection (NEMA)
Other
Packing details
Packing level 1
4011209403604
Description
SENTRON, Switch disconnector 3LD, main switch, 3-pole, Iu: 100 A, Operating power / at AC-23 A at 400 V: 37 kW, front-mounted, rotary operating mechanism, black, 4-hole mounting of the handle The 3LD main and emergency off switch for safe disconnection of loads in a wide variety of environments. There are numerous possible applications for the 3LD3 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. 3LD3 are also ideal for control panels, in particular for applications in small machines (for example saws, compressors, pumps, concrete mixers, drills, mills, and woodworking machinery) 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 thanks to local approvals. 3. One mechanical size for five electrical sizes. 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 63 A with lockable rotary operating mechanism.