Brochure

SENTRON main control and
EMERGENCY-STOP switches 3LD:
Simple. Modular.
6 l 7
When repair or maintenance work is being
carried out, the plant or system is disconnected
and isolated from the line supply – naturally also
when faults occur. Disconnectors that isolate
systems from the line supply ensure that the
complete electrical equipment can be safely
disconnected and isolated.
Main control and EMERGENCY-STOP switches are here to
stay – especially in all types of processing machines in
the machinery and conveyor system construction, in the
chemical and food & beverage industries. They cover an
extremely broad range of applications: They can switch
three-phase motors just the same as HVAC systems up
to 45 kW.
1
2
3
3
5
6
7
8
9
4
4
Approvals:
EN 60947-3
EN 60204-1
UL
LRS
1 4th contact (N conductor)
2 N or PE terminal, continuous
3 Auxiliary contact, 1NO
4 Auxiliary contact, 1NO + 1NC
5 Rotary operating mechanism, red/yellow
6 Rotary operating mechanism, black
7 Front plate, German/English
8 Terminal cover, three-pole
9 Terminal cover, single-pole