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Eaton TRW27 square relay in light grey housing with rotary dial and screw terminals

Eaton

Eaton TRW27 Multifunction Time Delay Relay

SKU CH-Y1JA-XWSWT

A multifunction time delay relay with seven delay functions, DPDT contacts rated 8 A at 250 V, 12 to 240 V AC/DC coil, screw-clamp terminals and IP40 rating

  • TypeIndustrial Electrical Controls & Automation
  • 7 selectable timing modes cover diverse control tasks
  • Wide 12 to 240 V AC/DC coil suits many supply voltages
  • DPDT 8 A contacts switch loads up to 250 V AC
  • Screw-clamp terminals give secure wiring without special tools
  • IP40 enclosure protects internals in standard panel environments

Multi-Function Time Delay Relay

The Eaton TRW27 is a multi-function time delay relay designed for industrial electrical control and automation panels. It provides seven selectable delay functions in a single square-base unit. Engineers and maintenance technicians use it to manage timing sequences for machinery, lighting or process equipment. The relay operates on a wide coil voltage range from 12 to 240V AC/DC.

Screw Clamp Connection and IP40 Rating

Electrical connection is made through screw clamp terminals that accept standard wiring without specialised tools. The housing carries an IP40 rating, meaning it is protected against solid objects larger than 1mm but offers no water ingress protection. Installation must occur inside a suitable enclosure or cabinet to meet safety and environmental requirements. The rotary DIP switch allows function selection without software or external programmers.

DPDT Contacts Rated 8A at 250V AC

The double-pole double-throw contacts switch up to 8A at 250V AC, covering typical control circuit loads such as contactor coils, solenoids or pilot lights. Seven timing modes include on-delay, off-delay, single-shot, flasher and sequence monitoring with control contact input. Applications requiring higher current switching, additional poles or watertight sealing will need a different relay solution.

Highlights

  • 7 selectable timing modes cover diverse control tasks
  • Wide 12 to 240 V AC/DC coil suits many supply voltages
  • DPDT 8 A contacts switch loads up to 250 V AC
  • Screw-clamp terminals give secure wiring without special tools
  • IP40 enclosure protects internals in standard panel environments

Specifications

BrandEATON
TypeIndustrial Electrical Controls & Automation

Questions about this item

Which of the seven delay functions should I choose for my application?

The relay offers seven functions including On Delay, Single Shot leading or trailing edge, On/Off Delay with control contact, Pulse Sequence Monitoring, and Asymmetrical Flasher pause or pulse first. Select the function via the rotary DIP switch to match your timing logic.

What does the 8 A contact rating mean for my circuit?

The DPDT contacts are rated for 8 A at 250 V AC, allowing the relay to switch loads up to that current and voltage directly. Ensure your load does not exceed these limits.

How does the 12 to 240 V coil voltage range affect installation?

The coil accepts any AC or DC voltage between 12 and 240 V, so you can power it from common control voltages without a separate transformer. Connect the supply to the screw clamp terminals.

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