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Transparent rectangular overload relay with front-mounted adjustment dial and terminal blocks

Dayton

Dayton 6ECA9 Overload Relay 1.6–2.5 A 1NO/1NC Trip Class 10

SKU CH-QWZN-E88XS

Thermal overload relay protects motors from 1.6 to 2.5 amps with automatic or manual reset and IEC trip class 10

  • TypeIndustrial Electrical Controls & Automation
  • ColorTransparent
  • Thermal overload protection for 1.6–2.5 A circuits
  • Trip Class 10 response limits motor damage
  • Auto and manual reset restores operation quickly
  • IEC 60947-4-1, CSA and UL listed compliance
  • Direct contactor mount saves panel space

Product Identity

The Dayton 6ECA9 is a thermal overload relay designed for motor protection in industrial control panels. It offers a current setting range of 1.6 A to 2.5 A with a Trip Class 10 response. The unit carries IEC 60947-4-1, CSA and UL Listed approvals. It mounts directly to a contactor for compact installation.

Suitable Applications

This relay suits panels that require adjustable overload protection for small motors within the 1.6 A to 2.5 A window. It provides both automatic and manual reset options for operational flexibility. Buyers needing a wider current range, a different trip class or a relay without direct contactor mounting should consider other models.

Build Integration

The relay measures 1.73 in wide, 1.85 in high and 3.62 in deep, with an overall height of 2.5 in. Its transparent housing allows visual inspection of internal status. Direct contactor mounting saves panel space and reduces wiring time. The 1NO/1NC auxiliary contacts integrate easily into control circuits for signalling or interlocking.

Highlights

  • Thermal overload protection for 1.6–2.5 A circuits
  • Trip Class 10 response limits motor damage
  • Auto and manual reset restores operation quickly
  • IEC 60947-4-1, CSA and UL listed compliance
  • Direct contactor mount saves panel space

Specifications

BrandDAYTON
TypeIndustrial Electrical Controls & Automation
ColorTransparent

Questions about this item

What contactor or motor starter must I already have to mount this 1.6–2.5 A thermal overload relay?

The relay mounts directly to a compatible IEC-style contactor; verify the contactor’s frame size and coil voltage match your starter assembly before installation.

Will this Trip Class 10 relay coordinate with an older thermal overload set to a different trip class on the same motor circuit?

Trip Class 10 defines a specific heating curve; mixing trip classes on the same motor can cause nuisance trips or delayed protection, so use matching classes for reliable coordination.

How can I confirm the 1NO/1NC auxiliary contacts change state correctly after wiring the relay?

Apply a test current within the 1.6–2.5 A range, then observe the normally-open contact close and the normally-closed contact open when the relay trips.

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