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Solid-State DIN Relays For Industrial Automation Come With Integral Heatsink

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Solid-State DIN Relays For Industrial Automation Come With Integral Heatsink

New DIN rail mountable solid state relays (SSR) from Kudom come with an integral heatsink. Available through distributor Switchtec, the new Kudom’s KSV series are ideal for use in applications including PLC interface duties and process control in automation and processing equipment embracing high-low temperature chambers, plastics machinery, incubation machines, oiling machines, elevators, lighting, fountain controllers.

The major benefit of the new relays, according to Switchtec, is its modular construction. The relays are supplied complete with a built in heatsink, DIN-rail mounts and a surface mount clip.

The company notes that standard SSRs typically require users to order the relay, protection cover, thermal pad and heatsink separately. Selecting the correct size of heatsink can be a headache. One benefit of the KSV series is that if a user orders a single part number, it is a correctly rated and fully kitted out relay, ready to install and use.

The compact relays provide fast, reliable switching, and with no moving contacts they are suited to applications with high switching levels, rapid switching times and those requiring a very long electrical life.

“Comparing them with their electro-mechanical (e-mech) equivalents, KSV series SSRs have a fast operating time of 1ms, compared to 15ms for the e-mech”, the company says.

Furthermore, compared to electro-mechanical relays, SSRs offer silent switching as they have no moving contacts and are therefore silent running, to reduce noise in the workplace. This is noteworthy as there are many relays involved in echoey control rooms and in metal cabinets. e-mech relays can be noisy in clicking on and off in applications where frequent switching is required.

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The relays are available in four current ratings, 10, 20, 30 and 40A and are suitable for switching loads up to 280 or 530V AC for 240 and 480V AC relays respectively. The relays are available with DC control voltages of 4.0 to 32V or 90 to 280V AC, dependent on the version selected.

All types are available with zero cross turn on to minimise electrical interference, or random turn on for fast switching applications.

The SSRs are compact, the 10, 20 and 30A relay versions measure 81 x 30 x 110mm, and the 40A version measures 120 x 50 x 110mm.

The products are fitted with a built in LED to display their status  ‘on’ when lit. Suitable for most industrial applications, the relays operate in an ambient temperature range of -30 to 80 degrees C.

cULus-approved and CE-marked, the Kudom KSV series is available ex stock from Switchtec.
For further details, visit http://www.switchtec.co.uk

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