30A switching in 22.5mm width package contactor

Crydom has introduced a new series of solid state contactors capable of switching loads up to 30Amps in a 22.5mm width package.

Crydom has introduced a new series of solid state contactors capable of switching loads up to 30Amps in a 22.5mm width package.

Believed to be the first of its type in the world, the device benefits from improved thermal management techniques to enable the extended power handling capability.

"22.5mm width seems to be an emerging standard" says Simon Dear, product manager at Crydom in Wimborne, Dorset.

"We believe we are the first company be able to offer 30A switching in such a small package".

The DIN mountable CKR range uses a specially designed tapered heatsink and improved thermal interface to enable the heat generated at 30A to be dissipated efficiently.

10, 20 and 30 amp versions are available with 240 or 530 VAC output.

Control voltages of either AC (mains) or DC are available.

Input status is indicated via a LED mounted on the front panel, and TVS protection is optional.

Other standard features include rising clamp cage terminals and provision for earth bonding of the device.

All load ratings utilise Back to Back Thyristor power switching assemblies, which provide excellent surge current characteristics.

This feature enables these relays to replace more traditional contactors with Solid State technology .

Resistive and inductive loads, including heaters, motors, pumps, solenoids can be switched as frequently as required with no contact wear.

The devices can be mounted in any orientation and are not susceptible to dust or humidity.

UL, CSA and VDE approvals are in process.

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