Omron H3YN Series DIN Rail, Panel Mount Timer Relay, 2-Contact, 24 V ac 24V ac, 0.1 min to 10 h, Multifunction-Function,

Omron H3YN Series Timer Relay, 24V Supply Voltage, DPDT Contact Configuration - H3YN-21 AC24

This timer relay is a multifunction time control device designed for industrial automation and control panels. It provides selectable timing between short delays and extended intervals while interfacing via a socket-mounted Terminal arrangement. The unit fits onto DIN-rail systems for straightforward installation and offers a twin changeover contact arrangement suitable for switching moderate loads in control circuits.

Features and Benefits:

• DPDT contact arrangement provides two independent switching paths
  Time range from 0.1 min to 10 h allows fine and long-duration timing
  24V AC supply operation integrates with AC control systems
  Rated contact current 5A supports common control and signalling loads
  IP40 enclosure rating suits protected indoor panel environments
  Multifunction timing capability covers multiple delay modes

Applications

• Suitable for sequencing motor start/stop operations in panels
  Ideal for timed interlocks in manufacturing automation systems
  Used with control circuits requiring changeover switching at set intervals
  Can be used for delay-off lighting or signalling in industrial enclosures
  Suitable for replacement in DIN-rail-mounted control assemblies

What mounting method does it use for panel integration?

It is designed for DIN-rail mounting, using a socket Terminal for a secure electrical connection.

Which environmental temperature range is acceptable for operation?

It operates between -10 °C and 50 °C, accommodating typical industrial indoor conditions.

How many independent contact circuits are available for control?

There are two changeover contacts providing two separate switching circuits.

What approvals cover its use in engineered systems?

The unit meets UR, EN and CSA approvals for recognised safety and performance standards.

How does the Terminal arrangement affect installation?

The socket terminals simplify replacement and wiring access, reducing downtime during maintenance.

Standards

VDE0435/P2021, EN 50081-2, EN 50082-2

Approvals

UL, CSA