DISCONNECTORS : LTH SERIES

FEATURES

- 4kV voltage system;
- Thermal current 800/1500 A per pole;
- Electromotorized or pneumatic control;
- Contact technology based on multi-finger jaws,
which allow to withstand consistent dynamic currnts
(up to 220kA);
- Reduced space envelopes and weights;
- Mechanical life > 100,000 operations.

FLEXIBILITY

- Poles can be connected in parallel to obtain higher
thermal currents on single contact (up to 6,000 Amps)
- On D versions, poles can be reversed forming NC poles,
or single-double pole changeover without additional structure;
- On D versions, additional upper structure is available to create 2-3-4 changeover poles;

- 20 combinations are available with more than 130 pole configurations;
- Several options available for control circuits and for auxiliary contacts connection;
- Integrated solutions: multiple switches are assembled
on frame with customised busbar system and integrated control circuits.

CONTROL CIRCUIT INFORMATION

Pneumatic disconnector:
Rated operational pressure:	0.55 Mpa
Min/Max air pressure:	0.35/0.7 Mpa
Max air consumption for each closing or opening operation:	0.16 litres
Max closing time:	436 ms
Max opening time:	258 ms

Electromotorized disconnector:
Motor voltage:	24,110 Vdc
Working range at 75°C:	±30%
Max power consumption at rated voltage and 20°C	=70W
Closing time:	3s
Opening time:	3s

Possible combinations | Some references | Auxiliary contact blocks

Information, Specifications, Software & Graphics supplied by Microelettrica Scientifica.