Snap-Lock® Cam Industrial Logic.
The EA700 series represents the ultimate in heavy-duty mechanical switching. Built for high-cycle industrial apps with silver alloy contacts and die-cast zinc durability.
Built for
Severe Environments.
The EA700 is engineered to provide fail-safe contact logic using a series of uniquely designed mechanical cams.
Harsh Process Dynamics
Standard duty switches cannot handle the rapid, high-torque cycles of heavy industrial machinery.
Contact Arcing Fatigue
High current inductive loads lead to premature contact pitting in non-hardened alloy switches.
Mounting Inflexibility
Fixed mounting styles often lead to mechanical stress on switch housings during high vibration.
Operational Lag
Slow contact transition in non-snap-action switches results in unreliable logic signal timing.
Electrical Performance Matrix
Standard Ratings (Amps)
| Volts | AC Amps | DC Amps |
|---|---|---|
| 125V | 20.0 | 5.0 |
| 250V | 15.0 | 1.5 |
| 480V | 10.0 | --- |
| 600V | 5.0 | --- |
Neutral Position Ratings
| Volts | AC Amps | DC Amps |
|---|---|---|
| 125V | 10.0 | 2.5 |
| 250V | 7.5 | .75 |
| 480V | 5.0 | --- |
| 600V | 2.5 | --- |
* Ratings based on 75-100% Power Factor. Contacts made of silver alloy with Form 'Z' contact arrangement.
Mechanical
Cam Logic Dynamics.
Combination B1/B2 Cam
The versatile Snap-Lock mechanism is achieved through the use of uniquely designed cams. A standard EA700 switch is supplied with the B1/B2 combination.
Contacts function when lever is operated CW.
Contacts function when lever is operated CCW.
Standard B1/B2 Travel Metrics
| (A) Trip Travel | 18° |
| (B) Reset Travel | 14° |
| (C) Recommended Travel | 30° |
| (D) Total Travel | 90° |
| Operating Torque (Standard) | 1NO/1NC: 15 LB-IN. 2NO/2NC: 27 LB-IN. 3NO/3NC: 33 LB-IN. |
Maintained Position CAM (M)
Maintained switches are available for applications that require maintained contacts. Available in two contact operations:
- Normally open contacts close and normally closed contacts open when lever is moved CW.
- Contact arrangement is maintained as the lever is spring returned to starting position.
| Maintained M CAM Data | CCW | CW |
|---|---|---|
| Trip Travel | 25° | 55° |
| Reset Travel | 25° | 22° |
| Min. Travel to Maintain | 54° | 55° |
| Total Travel | 124° | 116° |
Neutral Position N CAM
Designed for applications requiring a neutral position in the contact arrangement. Both the operating lever and cam are spring returned to starting position.
Operational Limits
Torque Matrix
Legendary Snap-Lock®
Cam Precision.
Meets NEMA 1, 4 & 13 requirements. Enclosure is watertight, oil & dust tight. Contacts made of silver alloy. Mechanism is locked in position by latches until lever is actuated. Temp Range: -20°C to +90°C. Heavy Duty Cam Operated with Fast Contact Action.
Die-Cast Zinc Housing
Corrosion-resistant heavy duty enclosure meeting NEMA 1, 4, and 13 standards.
Snap-Lock® Precision
Mechanical latching ensures contacts shift only when the lever is fully actuated.
Interchangeable Cams
Uniquely designed cams allow for complex CW, CCW, or Double Action logic.
Silver Alloy Contacts
Form 'Z' arrangement for optimal conductivity and longevity under high loads.
Mounting & Dimensional Blueprints.
Die-Cast Zinc Enclosure / Standard, Wide & Long Mounting Styles
