D26MR53A EATON Machine Tool Relay

Description

D26MR53A EATON Machine Tool Relay

Product Dimensions：

Product Description

The Eaton D26MR53A, also known under the Cutler-Hammer division, is a machine tool AC control relay designed for industrial applications. It is an eight-pole, single-throw relay featuring 5 Normally Open (NO) and 3 Normally Closed (NC) contacts. The relay is driven by a 110/120 VAC coil and operates on both 50 and 60 Hz frequencies.rspsupply.comeecoonline.com

Product Specifications (Parameters)

• Contact Poles: 8-pole, single-throw (5 NO, 3 NC)rspsupply.comMouser Electronics

• Coil Voltage: 110 VAC or 120 VAC, at 50/60 Hzeecoonline.comrspsupply.com

• Rated Current: 10 Abuy.wesco.comRadwell International

• Mounting Style: Panel mount with screw-type terminalsMouser Electronicsbuy.wesco.com

• Physical Dimensions:

  • Length: ~5.25 in

  • Width: ~2.38 in

  • Height: ~3.57 inMouser Electronics

• Weight: ~2.2 lb (approx. 3.0 lb depending on source)Mouser ElectronicsRadwell International

• Certifications: UL Listed (Class NKCR2, File E1230), CSA (File LR353)rspsupply.com

Product Advantages

• Efficient Wiring: Equipped with captured, self-lifting pressure plates that streamline wiring processes and reduce labor timerspsupply.com.

• Safety-Enhanced Terminals: Features shrouded (finger-proofed) terminals to minimize the risk of accidental contact or electrical shockrspsupply.com.

• User-Friendly Design: Generous spacing between contacts simplifies installation, contact testing, and maintenance tasksrspsupply.com.

• Isolated Contacts: Electric and mechanical isolation between contacts prevents unintended interaction or interference, boosting operational safetyrspsupply.com.

• Surge Protection: Built-in surge suppressors in the contact cavity help mitigate high transient voltages (e.g., coil de-energization), protecting sensitive instrumentation and solid-state devicesrspsupply.com.

Cautions / Handling Notes

• Installation Care: While specific thermal derating or mounting instructions are not provided in available sources, always ensure proper ventilation and adherence to service environment standards (e.g., temperature, humidity).

• Voltage Compatibility: Confirm that the supply clearly matches 110 VAC or 120 VAC, and observe correct frequency (50/60 Hz) to match relay design.

• Load Matching: Ensure the connected load does not exceed the 10 A rating per contact to maintain relay longevity and safety.

• Certification Compliance: Any installation should ensure usage aligns with equipment standards for UL and CSA certifications.

• Replacement Availability: Check with Eaton or authorized distributors for current stock or approved replacements, especially if sourcing through surplus or aftermarket channels like Radwell.Radwell InternationaleBay

Typical Applications

• Machine Tool Controls: Ideal for industrial machinery where multi-contact control is required—common in CNC machines, lathes, milling systems, or automated production equipment.

• Control Panels: Used in panel-mounted configurations that require a mix of NO/NC contacts for control logic, sequencing, or safety interlocks.

• Industrial Automation Systems: Suitable for operations needing isolated switching across multiple circuits or acting as interface relays within complex control frameworks.

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