Contactors

The LTC Series contactors, thanks to their excellent balance between dimensions, performances and robustness, are suitable for all those applications on-board which demand a small, smart device. Their design encourages applications where high operating frequencies and small available spaces are important requirements.

The LTC Series are 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 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 deenergized. More than 20000 LTC contactors are delivered worldwide each year for the most demanding projects and applications.

LTHH/LTE/LTP Series contactors for electric traction are supplied to railways and underground systems throughout the world. Where high voltage ratings are required, the LTHH Series contactors are the right solution.

The creepage and clearance distances are widely dimensioned for safe application in polluted ambients. Their narrow outline is especially conceived for applications where space is a critical issue - as more and more often happens on railway vehicles. To meet all possible applications, they are available both with electric (LTHH/LTE) and pneumatic (LTP) control, and poles can be manufactured in normally open or normally closed configurations.

The indirect blow out circuit makes the LTHH contactors suitable to work both with high and low currents and with relatively high frequency (1500Hz).

The DC control coil operates without economy resistor within a wide working range.

More than 10000 LTHH contactors are delivered worldwide every year for the most demanding projects and applications.

The LTHS Series of contactors displays a traditional design which enables them to withstand the highest current ratings in harsh working conditions. To accomplish most of the possible applications, all the LTHS Series contactors can be manufactured in single or multipolar form and, upon request, allow a very high degree of customisation.

For example, versions with normally open or normally closed poles are manufactured, and mechanical latching can be supplied. In order to work efficiently both with high and low currents, the contactors are equipped with indirect blow out circuit. This arc-extinguishing technology allows to work indifferently both in AC and DC.

The DC control coil operates without economy resistor within a wide working range. A “varistor” cuts off the peak voltage when the coil is deenergized. More than 20000 LTHS contactors are delivered worldwide each year for the most demanding projects and applications.

LTNS Series have been developed to answer to the constantly increasing market need of reduced dimensions and weight, taking most of the consolidated know-how in designing and manufacturing of industrial bar mounted contactors. These contactors have been designed starting from the N Series electric arc management concept, grafted on the light and compact structure of a rail unit, developed around the control electromagnet.

The LTNS contactors, characterised by a nominal voltage of 750V, are available in a wide range of current ratings, from 80A up to 1300A (up to 3 poles). They can be configured in any combination of Normally Open or Normally Closed poles, with a common rating.

They have been designed and tested according to the international standard IEC 60947-4-1 and are suitable for almost any industrial low voltage application, such as: cranes, rolling mills, electric energy production and transformation, photovoltaic panels and inverters, induction furnaces, galvanic treatments.

N Series bar mounted contactors, in spite of their 50 years old technical concept are still state of the art for many industrial, low voltage, heavy duty applications. These contactors are designed and tested according to the standard IEC 60947-4-1.

They provide excellent operational performances, making them the best choice for high power load connection, often covering the function of a fault clearing protection device.

The N Series contactors are characterised by modular design so that their configuration can be tailored to the specific requirements of each application. In fact, the pole ratings cover a wide range, from 85A up to 6000A, and can be mounted side by side regardless of their size and number on a customizable length shaft set, this way offering custom solutions to a wide range of technical needs.

The maintenance is simplified by direct accessibility to all parts due to open construction so that, in most cases, it is not necessary to remove the contactor from the enclosure.