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Transparent rectangular overload relay with front adjustment dial and terminal block

Dayton

Dayton 6EAZ8 Overload Relay 30-40 A Trip Class 10

SKU CH-AKVX-8PBNP

Thermal overload relay protects motors at 30–40 A with Trip Class 10 and auto or manual reset

  • TypeIndustrial Electrical Controls & Automation
  • ColorTransparent
  • Thermal overload protection trips at Class 10 speed
  • Adjustable 30-40 A range matches motor load
  • Direct contactor mounting simplifies panel wiring
  • Auto and manual reset options reduce downtime
  • IEC 947-4-1, CSA and UL listed compliance

Overload Relay 30-40 A Trip Class 10

This is a thermal overload relay designed to protect three-phase motor circuits by interrupting power when current exceeds the set limit. It mounts directly to a contactor and carries a Trip Class 10 rating for standard acceleration profiles. The unit offers an adjustable current setting range between 30 A and 40 A. It complies with IEC 947-4-1, CSA and UL Listed standards.

Suits motor protection panels needing adjustable

Electricians and panel builders wiring motor starters in the 30 A to 40 A range will find the direct contactor mount and dual reset modes practical. The 1NO/1NC auxiliary contact supports both signalling and control circuits. Buyers who need a different current range or a non-thermal protection principle should select another device.

Adjustable thermal trip range 30 A to 40 A

The single specification that determines fit is the adjustable thermal trip range of 30 A minimum to 40 A maximum. The motor full-load current must fall within this window for the relay to protect correctly. Trip Class 10 defines the response time curve. Verify the contactor compatibility for direct mounting before purchase.

Highlights

  • Thermal overload protection trips at Class 10 speed
  • Adjustable 30-40 A range matches motor load
  • Direct contactor mounting simplifies panel wiring
  • Auto and manual reset options reduce downtime
  • IEC 947-4-1, CSA and UL listed compliance

Specifications

BrandDAYTON
TypeIndustrial Electrical Controls & Automation
ColorTransparent

Questions about this item

What contactor must I already own to mount the 6EAZ8 overload relay directly?

The relay uses direct-to-contactor mounting with a 3-pole IEC frame; select a matching IEC contactor rated for 30–40 A and the same rail footprint.

Will the 6EAZ8 protect an older motor starter wired for manual reset only?

Yes — the relay offers both auto and manual reset modes, so it works with legacy starters that expect a manual-reset overload.

How do I confirm the 6EAZ8 is tripping correctly at the 30–40 A range after installation?

Apply a calibrated test current through all three poles; the thermal element should open the 1NO/1NC auxiliary contacts within the Class 10 time curve.

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