Frequently Asked Questions
Identifying maximum voltage of an LC1D contactor
TeSys D Contactors
IEC contactors and starters used in North America
IThe maximum voltage per UL and CSA is 600VAC.
What is the altitude derating for a TeSys D-Line contactor?
Digest 177 Section 18 : Contactors and Starters, IEC
North American Products
The contactors are fully rated up to 3000 meters. Following are derating multipliers for altitudes above 3000 meters for both voltage and current:
3500m x 0.90
4000m x 0.80
4500m x 0.70
5000m x 0.60
3500m x 0.92
4000m x 0.90
4500m x 0.88
5000m x 0.86
For example, an LC1D80 at 5000 meters:
- The maximum rated operational voltage is 1,000V (IEC947-4) and 690V (UL/CSA). At 5000 meters it becomes 1000V x 0.6 = 600V (IEC947-4) and 690V x 0.6 = 414V (UL/CSA).
- The maximum rated operational AC3 current is 80A. At 5000 meters it becomes 80A x 0.86 = 68A.
Identifying power terminal lug data for the D2 style contactors
IEC Contactors and Starters
Tesys D line contactors
Power terminal lug data required
For contactors with screw clamp terminals:
stranded cable w/o cable end : One #10-3 AWG or Two #10-4 AWG per terminal.
stranded cable w/cable end: One #10-4 AWG or Two #12-2 AWG per terminal.
solid cable: One #10-3 AWG or Two #10-6 AWG per terminal.
Electrical interlock kit for the LC1D65A Everlnk contactors.
Tesys D LC1D40A, LC1D50A, LC1D65A
Everlink, all voltage codes
Old D2 version offered an electrical interlock kit
The current Everlink version does not offer an electrical interlock kit. The customer can wire electrical interlocking using the normally closed contacts provided on the contactor.