EATON E50SB Heavy-Duty Plug-in Limit Switch

Description

EATON E50SB Heavy-Duty Plug-in Limit Switch

The Eaton E50SB is a modular, heavy-duty 2-pole plug-in limit switch body from the Cutler-Hammer E50 series. It houses 2NO-2NC (four-pole single-throw) snap-action contacts inside a rugged zinc die-cast housing designed for industrial automation.

Product Overview

• Modular Plug-In Component: The switch body pairs with separate E50 series receptacles and operating heads (sold separately) to form a complete limit switch assembly.
• Snap-Action Switching: Its 2NO-2NC contacts switch simultaneously regardless of how fast or slow the actuator moves, ensuring reliable electrical state changes.
• No Indicating Light: Unlike lighted E50 variants (such as the Eaton E50SBN6PC, the standard E50SB comes without an integrated status lamp.

Technical Specifications

• Model Number: E50SB (Eaton / Cutler-Hammer E50 Series)
• Component Type: Plug-in limit switch body (9-terminal base compatibility)
• Contact Configuration: 2-Pole, 4PST (2 Normally Open / 2 Normally Closed), snap-action
• Contact Rating: NEMA A600 (10 A at 240 V AC; 1 A at 250 V DC)
• Enclosure Material: Die-cast zinc with Viton gaskets, seals, and boots
• Environmental & Protection Ratings: NEMA 1, 3, 3S, 4, 4X, 6, 6P, 13; IP67 (when assembled with matching receptacle and head)
• Operating Temperature: 14 °F to 250 °F (-10 °C to 121 °C)
• Mechanical / Electrical Life: 10 million mechanical cycles; 1 million electrical cycles (up to 8,000 cycles/hour)
• Certifications: UL Listed, CSA Certified, CE Compliant

Key Advantages

• Fast Plug-In Replacement: The modular body unplugs directly from the wired receptacle, letting technicians swap switches quickly without disconnecting field wiring.
• Harsh Environment Durability: Its zinc die-cast housing and Viton seals resist oil, coolants, washdowns, and corrosive industrial chemicals.
• High Cycle Endurance: Rated for up to 10 million mechanical cycles, it holds up under continuous, high-speed manufacturing duty.
• Flexible System Configuration: Works across dozens of E50 rotary levers, plungers, and wobble-stick heads to minimize spare parts inventory.

Installation & Usage Precautions

• Incomplete Assembly Alone: The E50SB is only the central switch body—you must pair it with a compatible E50 receptacle (such as a 9-terminal receptacle) and an operating head before installation.
• Verify Seal Integrity: Inspect and seat all Viton gaskets properly when fastening the body to the receptacle and head to preserve its IP67 / NEMA 4X/6P washdown rating.
• Check Control Circuit Compatibility: Because this version has no LED or neon indicator, confirm circuit status at the PLC input card or with a multimeter during troubleshooting.
• Load Limits: Do not exceed the 10 A AC / 1 A DC contact limits; use an interposing relay for heavy inductive loads.

Industrial Applications

• Material Handling & Conveyors: Detects pallet position, diverter gate alignment, and end-of-travel stops on automated conveyor lines.
• Automotive & Stamping Machinery: Monitors press slide positions, safety guards, and tooling clamps in oily, high-vibration environments.
• Packaging & Bottling Lines: Tracks mechanical indexing and indexing-table limits in washdown zones.
• Heavy Manufacturing & Steel Mills: Provides reliable position feedback on overhead cranes, hoists, and foundry transfer cars.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

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