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Grey rectangular DIN-rail module with front terminals and green indicator LEDs

Vszerda

Vszerda Isolating Switching Amplifier IM1-22EX-R 7541231

SKU CH-HVNP-5YJ8Z

An isolating switching amplifier with two relay outputs, SIL 2 functional safety and wide-voltage operation for hazardous-area digital signals

  • SIL 2 functional safety for reliable operation
  • Two relay outputs with adjustable NO/NC mode
  • Input monitoring for wire-break and short-circuit
  • Full galvanic isolation with reverse-polarity protection
  • Wide voltage range and IP20 protection class

Industrial isolating switching amplifier

The Vszerda IM1-22EX-R 7541231 is a DIN-rail isolating switching amplifier built for hazardous-area signal conditioning. It accepts a digital input and provides two relay outputs with adjustable normally-open or normally-closed modes. Complete galvanic isolation separates field and control circuits for safety integrity.

Replaces non-isolated

Upgrade when an existing installation lacks wire-break and short-circuit monitoring on the input circuit or requires SIL 2 functional safety. The switchable diagnostics and wide nominal voltage range simplify retrofit projects where older modules cannot meet current Ex approvals or isolation requirements.

Verify rail mounting space and approval needs

Confirm the control cabinet uses standard DIN rail and that IP20 protection suits the environment. Check that the hazardous-area classification matches the ATEX, IECEx and other listed approvals. Ensure the supply voltage falls within the wide nominal range and that two relay outputs satisfy the application logic.

Highlights

  • SIL 2 functional safety for reliable operation
  • Two relay outputs with adjustable NO/NC mode
  • Input monitoring for wire-break and short-circuit
  • Full galvanic isolation with reverse-polarity protection
  • Wide voltage range and IP20 protection class

Specifications

No published specifications for this item yet.

Questions about this item

What mounting method does the IM1-22EX-R use?

The unit is designed for DIN rail mounting inside an enclosure.

What wiring step is often missed when installing the IM1-22EX-R?

The input reverse-polarity protection only works if the supply polarity is correct; reversing the wires disables the safeguard.

Which part of the IM1-22EX-R is most likely to need replacement first?

The two internal relay outputs are mechanical contacts and will wear out before the solid-state isolation circuitry.

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