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Eaton TRL04 octal relay, grey plastic housing with rotary dials and eight pins

Eaton

Eaton TRL04 Multifunction Time Delay Relay

SKU CH-DSFK-RH3D4

Multifunction time delay relay with four selectable functions, 24 to 240 V AC/DC coil voltage, 8 A SPDT contacts and 0.05 s minimum delay

  • Four selectable delay functions suit varied timing tasks
  • Wide 24 to 240 V AC/DC coil voltage fits many control circuits
  • SPDT contacts rated 8 A at 250 V AC handle typical loads
  • Adjustment via rotary DIP switch with 0.05 s minimum setting
  • IP40 enclosure protects internal components in panel installations

Multifunction Time Delay Relay

The Eaton TRL04 is a multifunction time delay relay designed for control-panel and machinery applications. It provides four selectable delay functions in a single octal-base unit, suited for engineers and maintenance teams managing timing sequences in industrial equipment.

Octal Base with Screw-Clamp Terminals

The relay mounts in a standard octal socket and uses screw-clamp connections for secure wiring. An IP40 rating protects internal components against solid objects larger than 1 mm, making it appropriate for enclosed cabinet environments where dust ingress is a concern.

Four Functions Across 24 to 240 V AC/DC

The coil operates from 24 to 240 V AC/DC, covering common control-circuit voltages without separate models. Adjustable from 0.05 seconds via rotary DIP switch, the four modes include flasher pause first, on/off delay, power triggered and single shot leading edge voltage controlled, with an SPDT contact rated at 8 A / 250 V AC. Buyers who need more than four timing modes or a different contact arrangement should look elsewhere.

Highlights

  • Four selectable delay functions suit varied timing tasks
  • Wide 24 to 240 V AC/DC coil voltage fits many control circuits
  • SPDT contacts rated 8 A at 250 V AC handle typical loads
  • Adjustment via rotary DIP switch with 0.05 s minimum setting
  • IP40 enclosure protects internal components in panel installations

Specifications

BrandEATON

Questions about this item

What voltage range does the TRL04 accept on its coil?

The coil operates on 24 to 240V AC/DC, so it covers both low-voltage control circuits and standard mains supplies without needing a separate transformer.

What socket or base style is required to mount this relay?

It uses an octal base with screw-clamp terminals, so you need an 8-pin octal socket wired to the screw clamps for a secure panel or DIN-rail installation.

How do I select one of the four timing functions on the TRL04?

Rotate the rotary DIP switch on the face to the desired function — flasher pause first, on/off delay, power-triggered, or single-shot leading-edge voltage-controlled — then set the delay with the time knob.

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