E50DH1 Cutler-Hammer

E50DH1 Cutler-Hammer Motor Circuit Breaker

Brand：Cutler-Hammer Model number：E50DH1

Country of origin: United States Product weight：0.55kg

HS code：8517623990

Product Details：

Product Dimensions：

The E50DH1 is a modular operating head only, designed to be mounted onto a standard E50 series plug-in switch body and wiring receptacle. It features a side pushbutton actuator with maintained action. When an external mechanical force depresses the side button, the switch latches or maintains its position until an opposite action resets it, rather than springing back instantly like a momentary switch. Built with a rugged die-cast zinc housing, it acts as the primary mechanical interface that physically strikes an object on a machine line to translate physical location into an electrical control signal.

Product Parameters

Component Type: Limit Switch Operating Head
Actuator Style: Side Pushbutton
Switch Action: Maintained (Stays in position after activation)
Enclosure Material: Die-Cast Zinc
Operating Temperature Range: 14°F to 201°F (-10°C to 94°C)
Operating Force: Approximately 5 lbs
Actuator Travel: 0.32 inches
Environmental Ratings: NEMA 1, 3, 3S, 4, 4X, 6, 6P, 13 and IP67
Sealing Material: Standard Viton gaskets and internal seals
Product Dimensions: 1.05 inches Long, 1.54 inches Wide, 3.33 inches High
Product Weight: 0.11 lbs
Standards and Certifications: UL Listed, CSA Certified, CE Marked, and RoHS Compliant

Product Advantages

A major benefit of the E50DH1 is its Plug-In Modular Design. Because the head is completely separate from the switch body and wiring receptacle, maintenance teams can replace a mechanically worn head in seconds without disconnecting any field wiring, reducing machine downtime. The Exceptional Chemical Resistance provided by the standard Viton seals and die-cast zinc enclosure ensures the head can withstand harsh industrial cutting fluids, coolants, synthetic lubricants, and aggressive cleansing agents without degrading.

The Maintained Action Mechanism is highly advantageous for safety interlocking or memory holding operations, as it reliably retains its state even if the moving object momentarily loses contact with the button. Additionally, its High Environmental Sealing (up to NEMA 6P and IP67) allows the module to be temporarily submerged or subjected to high-pressure washdowns without moisture penetrating into the electrical contact chamber below.

Important Considerations and Precautions

When installing the E50DH1, you must verify Mechanical Alignment. The striking mechanism or cam hitting the side pushbutton should move straight along the axis of the button; excessive side-loading or angular strikes can bend the actuator shaft over time and cause the switch to jam. Because this is a Maintained Action Head, remember that a secondary mechanical action or manual intervention is required to reset the switch back to its original state; it will not return automatically.

During assembly onto the switch body, ensure that the Gaskets are Clean and Seated Correctly to prevent compromising the NEMA 4X/IP67 liquid-tight seal. Operators must avoid applying striking forces that exceed the mechanical structural limits of the die-cast housing to prevent shattering the head assembly. Finally, always ensure the Electrical Interlocks are De-energized before unlatching or swapping the head component to eliminate any risk of electrical shock or unintended machine startup.

Product Applications

The E50DH1 operating head is deployed in severe-duty applications where simple proximity sensors cannot survive the physical environment.

Machine Tooling: Detecting the final travel limits or carriage positioning on high-vibration metal cutting and forming machinery.
Automotive Manufacturing: Tracking the presence of heavy chassis components on automated assembly line conveyors where hydraulic fluids and lubricants are present.
Water and Wastewater Systems: Monitoring valve positioning and hatch controls in damp, corrosive environments that require high NEMA 4X and 6P ingress protection.
Material Handling and Logistics: Serving as a position hold or over-travel safety switch on overhead cranes, hoists, and heavy-duty transfer carts.
Foundries and Primary Metals: Managing position tracking near high-heat zones and debris-heavy stamping lines.

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