SW1500
Heavy Duty D.C. Contactor
for Telecommunication & Power Centres

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The following contactor is supplied with flat bar style fixed contacts, as opposed to the traditional stud termination. The contactor can be mounted solely to bus bar connections, or tapped magnet frames allow for panel or bracket mounting.
 

Operating Coils
Coil voltages ranging from 6 to 240 are available and these are wound for DC operation. However, coils can be fitted with a Bridge Rectifier for use from A.C. supplies. Coils are wound for continuous duty.

Pull-in voltages (coils at 20°C) are approximately 66% of the rated voltage. Drop-out voltage is nominally greater than 10% of rated voltage. Variations from these pull-in and drop-out figures can be engineered to suit particular applications. Coil connections are by means of 6.3mm spades.

Auxiliary Contacts
A double circuit normally open, normally closed microswitch can be fitted to the contactors. This has a D.C. resistive rating of 5 amperes at 24 volts. The suffix "A" should be added to the type number when auxiliary contacts are needed, for example SW1500A.

Please Note: The Thermal Current ratings stated for the contactors are dependent upon the correct size of busbar being used for the required duty. For maximum continuous ratings the busbars should not be less than the sizes shown in the drawings below.

The contactors can be mounted vertically or horizontally. If mounted vertically the coil should be at the bottom. All performance data shown should be used as a guide only. Alternative ratings may be considered according to applications.

Thermal Current Rating (100%):

Resistive Load:

Maximum Recommended Contact Voltage:

per 100 amperes:

Mechanical Life:

Coil Power Dissipation:

Continuously Rated:

Typical Drop-out voltage:

normally open contacts to close:

Without Suppression:

With Diode Suppression:

With Diode and resistor (value dependent):

Resistive Load:

SW1500:

SW1500A:

SW1500 Dimensions