Frequently Asked Questions
Tesys D line Contactors and Accessories
Mounting this module to TeSys LC1D40A through LC1D65A contactor requires the use of the LAD4BB3 wiring adaptor. This adaptor can be fitted only to contactors with no coil suppressor.
Continuous duty on a LAD703F.
Tesys D IEC Contactors and Overload Accessories
LAD703 remote stop or electrical reset
LA7D03 remote tripping or electrical reset
Customer was using competitor brand and it burns after 10 seconds
The time for which the coil of the remote tripping or electrical resetting device, LAD703 or LA7D03 can remain energized depends on the rest time in between energizing the coil.
Minimum pulse to energize is 200ms
1 second pulse needs a 9 second rest time
5 second pulse needs a 30 second rest time
10 second pulse needs a 90 second rest time
Maximum duration of energizing the coil is 20 seconds and would require a 300 second rest time.
LA4DE1U TeSys D - suppressor module - varistor - 110...250 V AC/DC
to suit D40-D115 (3P) and D65-115 (4P):
LA4DE2U TeSys D - suppressor module - varistor - 110...250 V AC
LA4DE3U TeSys D - suppressor module - varistor - 110...250 V DC
You need to use a LAD4BB adaptor
LC1D80 and LC1D95 bi-directional diode
TeSys™ D Contactors
LC1D80 and LC1D95 does not have an internal bi-directional peak limiting diode on their DC coils. LA4DC3U (Screw connection of wire to the contactor coil terminals 24–250 Vdc, 3p-4p) must be ordered separately.
The LC1D09 to LC1D38 have an internal diode by default on their DC coils.