Product category:
Electrical and Electronic Components
News Release from: Eaton Corp | Subject: CR contactors
Edited by the Engineeringtalk Editorial
Team on 16 June 2006
Modular contactors take control
A completely new range of modular contactors is designed for switching lighting, heating, fans, pumps and other general control applications.
A completely new range of modular contactors for switching lighting, heating, fans, pumps and other general control applications is announced by Eaton CR contactors are competitively priced and yet offer excellent performance and functionality
This article was originally published on Engineeringtalk on 12 Sep 2006 at 8.00am (UK)
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They are available in ratings from 20 to 63A.
All contactors in the range are available as AC/DC types.
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This ensures not only the flexibility to operate from AC or DC control circuits but also silent operation and low inrush currents.
Low power consumption is also achieved.
All AC/DC contactors are provided with overvoltage protection for the coil.
However, AC coils are also available for 20 and 25A devices.
A high quality contact system ensures low heat dissipation; this in turn contributes to reliability and long life.
Meanwhile a compact design allows high-density panel mounting.
All units feature contact indication as standard.
Coils are available for 12, 24 or 48V AC/DC or 230V AC/220V DC.
A full range of two-, three- and four-pole units is available with a choice of normally open and normally closed configurations.
Auxiliary contact sets are also available with one NO and one NC contact or two NO contacts, all rated 6A.
For storage heating and other applications involving day/night (off-peak) switching, the range includes 20 and 25A day/night contactors incorporating a consumer-operated manual override facility.
This allows the contactor to be manually changed to the on state, overriding the system control.
When the contactor is next energised, the operation will return to the normal/automatic state.
It is also possible to manually change to the off state, irrespective of energised/de-energised situation.
This enables energy to be saved during long periods of planned absence.
The operational life of CR contactors in multiple assemblies is extended if optional spacers are used.
These are only 9mm wide and are recommended between pairs of contactors.
Sealable terminal covers also available.
For lighting applications, the product guide includes tables to indicate the number of lamps of any specific type and rating that can be controlled by each contactor, this covers incandescent, linear fluorescent, compact fluorescent and high intensity discharge lamps with a variety of control gear types.
The product guide also contains detailed performance data for each contactor.
Eaton's CR contactor range is designed as a common product offering throughout Eaton's European electrical operations.
All contactors are designed and tested in accordance with IEC60947-4-1 and IEC61095.
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