Omron H3CR Series DIN Rail Timer Relay, 2-Contact 24 V ac, 0.05 to 12 s, Multifunction-Function, DPDT Switch

This timer relay is a Compact DIN-rail mounted timing device designed for control panels in automation and electrical installations. It accepts 24V AC or DC supply and provides multifunction timing capabilities with adjustable delay settings to control equipment sequencing and interlocking in industrial environments. The unit is supplied with plug-in terminals for straightforward installation and is constructed for standard panel or enclosure use where IP40 protection is acceptable.

• Dual-pole changeover contacts provide switched circuits up to 5 A
• Multifunction timing supports multiple delay modes within one unit
• Timing adjustable from 0.05–12 s via a front-mounted knob
• Accepts 24V AC and 24V DC to suit mixed-supply systems
• Switching capacity rated to 250V AC for direct control of AC loads
• Meets international approvals including UL and CSA for acceptance

• Suitable for sequence control in automated assembly lines
• Ideal for delay interlocks in motor control cabinets
• Used with PLCs for supplementary timed outputs
• Can be used for lamp and indicator timing in control panels
• Used for process timing where a Compact footprint is required

It employs plug-in terminals allowing the relay to be removed without rewiring, simplifying maintenance and replacement.

The device operates reliably between -10 °C and 55 °C, so ambient conditions outside this range may affect timing stability or longevity.

It is designed for DIN-rail mounting, enabling Rapid attachment to standard 35mm rails in electrical enclosures.

There are two changeover contact circuits available, enabling control of two separate circuits or signalling paths.

The enclosure provides IP40 protection which guards against solid objects larger than 1mm but is not rated for water ingress.