Eaton – Mult-Function Cutler Hammer TRW27 Timing Relay

Eaton’s type TR range of time relays comprises 3 models offering 9 different functions to meet the varied time control needs required for controlling such applications as fans, pumps and lighting.
By having a flexible supply and control voltage input the time relays can be easily applied without the need of additional power supplies. The status of the supply voltage, time sequence and output relay is visible on the front by LED indicators. All rotary adjustment buttons are located on the front. The recessed position of the buttons prevents from unintentional adjustment. All models are of a compact design, 18 mm wide. Staggered terminals allow easy access to the lower-level terminals even if upper terminals are wired.

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Technical characteristics

  • Designed by IEC 61812-1, IEC 61000-6-2 and EN 50178
  • Time Adjustment from 50 Milliseconds up to 100 Hours
  • Outgoing Change-Over Contact Rated 8 A/250 V
  • Flexible Voltage Supply and Control Input

Features

  • 3 Models Offering 9 Different Functions
  • Staggered Terminals Allow Easy Access
  • LED Status Indicators on the Front
  • High Level of Accuracy
  • Variable Supply and Control Voltage Offers Flexible Applications
  • Overvoltage Protection Class III Available on All Types
  • Compact 18 mm Wide DIN Rail Modular Design for All Functions
  • Recessed Adjustment Buttons Avoid Unintentional Adjustment

Timing Functions

  • E — ON Delay (Voltage Controlled)
  • R — OFF Delay (with Control Input)
  • Ws — Single Shot Leading Edge (with Control Input)
  • Wa — Single Shot Trailing Edge (with Control Input)
  • Es — ON Delay (with Control Input)
  • Wu — Single Shot Leading Edge (Voltage Controlled)
  • Bp — Symmetric Pulse Generator (Pause First)
  • Ip — Asymmetric Pulse Generator (Pause First)
  • Li — Asymmetric Pulse Generator (Pulse First)

 

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