Download LTC line - Microelettrica

Contactors
LTC line
Applications
Auxiliary converter input
Filter pre-charging
Heating/Air conditioning systems
Line contactor
The LTC Series contactors, thanks to their excellent balance between dimensions,
performances and robustness, are suitable for all those on-board applications which demand
a small, smart device. Their design encourages applications where high operating frequencies
and small available spaces are important requirements.
Like all Microelettrica Scientifica contactors, the LTC Series is based on a standard concept,
but a very high level of customization can be achieved by replacing a few key components.
Normally open and normally closed poles can be fitted, as well as mechanical latching.
The breaking circuit is equipped with permanent magnets or indirect arc blow out coil to
work efficiently both with high and low currents.
The DC control coil operates without economy resistor within a wide working range. A
“varistor” cuts off the peak voltage when the coil is de-energized.
More than 20000 LTC contactors are delivered every year for the most demanding projects
and applications worldwide.
General Characteristics
• The modern and compact heavy duty line, up to 4000VDC/AC application, up to 1000A/pole
• The most compact and modern heavy duty line
• On-board and stationary applications
• Designed for on-board applications according to IEC 60077
• 1-2-3 and 4 pole configuration available, NO and NC poles, permanent magnets
• Ratings up to 4000 VDC/AC and up to 1000 A/pole application
or indirect arc blow outs
• Permanent magnet or indirect arc blowout systems available according specific application
• Flexible control and auxiliary contacts options, customization available
requirements
• Multi-pole combination up to 4 NO or NC poles
• Very high level of customization available
Auxiliary contact blocks type SL11
• Up to 4 blocks normally mounted on LTHS contactors
• 1 NO + 1 NC or 2 NO block versions available
• Made in self-extinguishing Latamid polyamide that guarantees high electrical and mechanical
• Performances as well as very low temperature resistance
• Double interrupting, self-cleaning, solid silver contacts
• On request special execution with gold plate contacts
C o n t a c t o r s : LTC L i n e
H
D
­LTC 100
LTC 100 NC
LTCS 250
w
LTCS 250 2 poles
LTCS 250 3 poles
LTC 250 NC
LTCH 250
LTCH 60
LTCH 1000
Type
Umax [VAC/DC]
Ith [A]
W [mm]
LTC 100
1000
100 106 LTC 100 2 poles 1000 100/200 120 LTC 100 NC 1000 100 106 LTCS 250/300 2000 250 140 LTCS 250/300 2 poles 2000 250/500 140 LTCS 250/300 3 poles 2000 250 140 LTC 250/300 NC 2000 250 140 LTCH 250 2000 250 154 LTCH 60 4000 60 168 LTCH 60 2 poles
4000 60/120 168
LTCH 1000 2000 1000 385 H [mm]
D [mm]
127.5 127 155 156.5 156.5 156.5 196 176 221 221 300 63
93
60
86
109.2
165.5
78
86
88
125
93
Microelettrica Scientifica S.p.A. Via Lucania, 2 20090 Buccinasco - Italy
Tel.: +39 02 575731 Fax: +39 02 57510940 - [email protected] - www.microelettrica.com