Omron Timer Relay, 24-Contact

Omron H3FA Series Solid State Timer, 1 to 10s Time Range, 24V DC Supply Voltage - H3FA-AU DC24

This solid-state timer is a Compact timing relay designed for control and automation tasks where precise DC timing is required. It operates from a 24V DC supply and provides adjustable delay functionality over a short-range interval, making it suitable for sequential control in electrical and mechanical systems. The device mounts on a surface and conforms to recognised safety approvals for industrial applications.

Features and Benefits:

• Time adjustment from 1 to 10 s for short-delay control
  Operates from 24V DC supply for direct DC system integration
  Rated for -10°C to +55°C for varied ambient conditions
  Approved to UL508 and CSA for industrial compatibility
  Surface mounting for straightforward panel or enclosure installation
  Solid-state design minimises mechanical wear and maintenance

Applications

• Suitable for sequencing valves in pneumatic control
  Ideal for delay switching in conveyor control systems
  Used with PLCs for interlock timing functions
  Can be used for machine cycle timing in assembly lines
  Used for timed control of indicator circuits in panels

How many connection points are available for wiring multiple circuits?

The unit provides 24 contact points to support several control lines or signal distributions.

What environmental range can the timer reliably operate within?

It functions across temperatures from -10°C up to +55°C to accommodate typical industrial ambient variations.

Which mounting method should be used for installation in a control cabinet?

Fit the device using its surface-mount configuration to secure it directly to panels or enclosure walls.

Are there approvals that indicate suitability for industrial electrical installations?

The product carries UL508 and CSA approvals, reflecting compliance with relevant industrial electrical standards.

What type of timing behaviour is offered for short-duration delays?

It delivers adjustable short-range timing, specifically settable within a 1 to 10 s window for repeatable delay operations.