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Square transparent relay with screw terminals and DIP switches

Macromatic

Macromatic THR-3816U Multifunction Time Delay Relay

SKU CH-1PNF-G52WT

Multifunction timing relay with four delay modes, adjustable from .1 seconds to 100 minutes via dip switches, and a 24 A SPDT contact rating

  • TypeIndustrial Electrical Controls & Automation
  • ColorTransparent
  • Versatile timing with four selectable delay functions
  • Wide voltage range from 12 to 125 V DC and 24 to 240 V AC
  • High switching capacity up to 24 A at 240 V AC
  • Precise adjustment via DIP switch from .1 sec to 100 min
  • Secure screw-terminal connections for reliable installation

Multifunction Time Delay Relay

The Macromatic THR-3816U is an encapsulated timing relay designed for industrial electrical controls and automation. It provides four selectable delay functions including interval, off delay, on delay and single shot. A dip switch adjustment method allows configuration of the timing range. The unit suits panels requiring a square base relay with SPDT contact operation.

Check Voltage and Wiring Compatibility

Verify that your control circuit operates within the 12 to 125V DC or 24 to 240V AC coil voltage range before ordering. Ensure the load does not exceed the 24 A at 240V AC or 12 A at 125V DC contact ratings. Confirm your panel can accommodate a 9-pin screw terminal connection for secure wiring.

Integrates Into Control Panels

The relay mounts via its square base and connects through screw terminals, freeing DIN rail space for other modules. Its transparent housing allows visual inspection of the internal status. The wide input voltage span reduces the need for separate transformers in mixed-voltage cabinets. Adjustable timing from 0.1 sec to 100 min covers diverse sequencing requirements.

Highlights

  • Versatile timing with four selectable delay functions
  • Wide voltage range from 12 to 125 V DC and 24 to 240 V AC
  • High switching capacity up to 24 A at 240 V AC
  • Precise adjustment via DIP switch from .1 sec to 100 min
  • Secure screw-terminal connections for reliable installation

Specifications

BrandMACROMATIC
TypeIndustrial Electrical Controls & Automation
ColorTransparent

Questions about this item

What comes with the THR-3816U relay and what must be purchased separately?

The relay unit itself is supplied; wiring, mounting hardware and any DIN-rail or panel brackets are not included.

Which coil voltage range should I select for a 24 V AC control circuit?

Choose the 24 to 240 V AC range; the same unit also covers 12 to 125 V DC for mixed-voltage panels.

What does the 24 A contact rating mean when the relay is installed in a 240 V AC motor starter?

It guarantees the SPDT contacts can switch up to 24 A at 240 V AC continuously within the 0.1 sec to 100 min timing range.

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