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Zinc die-cast limit switch receptacle 20mm conduit 1NO/1NC contacts

Eaton

Eaton E50RA20 Cutler-Hammer Limit Switch Receptacle 1NC/1NO 20mm

SKU CH-SBD3-3TVKK

Zinc die-cast limit switch receptacle with 1NO/1NC contacts and 20mm conduit size

  • Product typeIndustrial Electrical Controls & Automation
  • Zinc die-cast construction ensures industrial durability
  • 1NO/1NC contact form provides flexible circuit control
  • 20mm conduit size fits standard wiring installations
  • Compatible with E50 series limit switches
  • New condition guarantees reliable out-of-box performance

Limit Switch Receptacle 1NC/1NO

The Eaton E50RA20 is a zinc die-cast limit switch receptacle designed for industrial electrical control and automation systems. It provides a 1NO/1NC contact form for reliable position sensing in machinery and conveyor applications. This component is built for integration with compatible E50 series limit switches.

Upgrade From Worn Switch Bases

The receptacle replaces damaged or corroded switch mounting bases that cause intermittent contact or misalignment. The jump is worth it when existing hardware shows physical wear, conduit thread damage, or contact oxidation that leads to false signalling. New zinc die-cast construction restores mechanical precision and electrical continuity.

Fits E50 Series With 20mm Conduit

The unit accepts 20mm conduit entries and mates directly with Eaton E50 limit switch heads. It frees up wiring space inside the enclosure while maintaining a secure, grounded mounting point. Installers should verify the switch head model matches the E50 series for proper actuator engagement.

How it compares

Measured against everything we stock in Electrical Enclosures & Cabinets, at today’s prices. Recalculated every night.

Price $33.99
Cheaper than about 56% of the 1,411 comparable items (median $39.99).

Specifications

Product
Brand nameEATON
Product typeIndustrial Electrical Controls & Automation

Questions about this item

Does the 20 mm conduit entry match standard metric fittings?

The 20 mm conduit size accepts standard metric cable glands and conduit threads used in industrial enclosures.

How is the receptacle secured to the limit-switch body?

The zinc die-cast housing bolts directly to the E50 series limit switch using the mounting holes on the switch body.

Which internal parts may need replacement after extended use?

The 1NO/1NC contact block inside the receptacle is the wear item; replace it when switching becomes unreliable.

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