Snap-Lock® Super Sensitive Logic.
Extensively used for fill detection, counting, and gauging. Engineered for ultra-low torque applications with gravity or spring return mechanisms.
When Light
Becomes Heavy Duty.
The EA150 series is the industrial choice for sensing small, lightweight objects where standard limit switches fail to trigger.
Fill Detection Lag
Standard switches lack the sensitivity for lightweight fill detection in vibratory bowl feeders.
Torque Instability
Inconsistent trip torques lead to calibration drift in precision gauging and liquid level systems.
Mechanical Fatigue
Standard duty switches lose their snap-action locking over millions of cycles.
Environmental Ingress
Dust and moisture in food processing or textile zones can short standard internals.
Super Sensitive Catalog Matrix
| Oscillating Type (Spring Return) | Rotary Type (Gravity Return) | ||
|---|---|---|---|
| Part Number | Description | Part Number | Description |
| EA150-10013 | STANDARD UNIT 1 N.O. - 1 N.C. | EA150-30014 | STANDARD UNIT 1 N.O. - 1 N.C. |
| EA150-10313 | STANDARD UNIT WITH L.E.D. TOP COVER | EA150-30303 | STANDARD UNIT WITH L.E.D. TOP COVER |
| EA150-10173 | STANDARD UNIT WITH 1/8" X 10" FIBER ROD | EA150-30283 | STANDARD UNIT WITH 1/4" X 12" FIBER ROD |
| EA150-10083 | STANDARD UNIT WITH 1/4" X 9" STEEL ROD | EA150-30223 | STANDARD UNIT WITH 1/8" X 10" STEEL ROD |
| EA150-10093 | UNIT WITH 1/4" X 9" STEEL & NEON LIGHT | EA150-30233 | UNIT WITH 1/8" X 10" STEEL & NEON LIGHT |
| --- | --- | EA150-30396 | STANDARD UNIT WITH LEFT HAND SHAFT EXTENSION |
| EA150-10143 | STANDARD UNIT 2 N.O. - 2 N.C. | EA150-30143 | STANDARD UNIT 2 N.O. - 2 N.C. |
| EA150-10343 | STANDARD 2 N.O.-2 N.C. WITH NEON LIGHT | EA150-30145 | STANDARD 2 N.O.-2 N.C. WITH NEON LIGHT |
| --- | --- | EA150-30500 | LOW TORQUE UNIT (1.5 IN-OZ) - NO ROD |
| --- | --- | EA150-30274 | STANDARD UNIT WITH DOUBLE-ENDED SHAFT |
*Contains Steel Rod, Lever Clamp, Lockwasher, Set Screw and Cap Screw.
Operational
Performance Data
| Parameter | Oscillating | Rotary |
|---|---|---|
| (A) OPERATING TORQUE | 15 INCH-OUNCES | 5 INCH-OUNCES* |
| (B) TRAVEL TO MAKE OR BREAK | ADJUSTABLE FROM 4° MIN. TO 90° MAX. | 4° |
| (C) OVERTRAVEL | ADJUSTABLE TO 86° | TRAVEL TO RESET = 180° |
| (D) TOTAL LEVER TRAVEL | 180° | 360° |
| APPROX. WEIGHT OF SWITCH | 1 LB. 12 OZ. | 1 LB. 11 OZ. |
| OPERATING MECHANISM | 1/8" STEEL ROD 10" IN LENGTH | 1/4" STEEL ROD 9" IN LENGTH |
(1) Mechanism can be positioned to trip switch in one direction only, either clockwise or counter-clockwise.
Superior Sensitivity,
Extreme Reliability.
EA150 Super-Sensitive Limit Switches have been extensively used for fill detection on vibratory bowl feeders, small part sensing or counting, gauging devices, time delay mechanisms, safety interlock switch applications, liquid level controls, governors and a wide variety of other industrial applications that require accuracy and dependability.
Super-Sensitive Response
Engineered for 5 inch-ounces of operating torque (Rotary) for ultra-lightweight object sensing.
360° Total Travel
Rotary units feature gravity return with unlimited 360° rotation for versatile mounting.
SPDT / DPDT / Electronic
Versatile output options including special 10-30 VDC PNP/NPN versions for digital logic.
Mill-Duty Ruggedness
Die-cast zinc construction meets NEMA 1, 4, and 13 standards for severe industrial use.
Mechanical Rods Matrix
| Operating Rod Type | Gravity Return (Rotary) | Spring Return (Oscillating) |
|---|---|---|
| STEEL ROD (1/8" x 10") EL140-18901 | OPTIONAL | STANDARD |
| STEEL ROD (1/4" x 9") EA140-18900 | STANDARD | OPTIONAL |
| FIBER ROD (1/8" x 10") EA140-18903 | --- | OPTIONAL |
| FIBER ROD (1/4" x 12") EA140-18902 | OPTIONAL | --- |
Rotary units are gravity return to the set position and have 360° of total travel either clockwise or counterclockwise. Trip torques range from 1.5 to 7 inch-ounces based on output selected. Oscillating units are spring return with 15 inch-ounce trip torque.
Contact Ratings
| Voltage Range | AC (Amps) | DC (Amps) |
|---|---|---|
| 125 VAC | 20 A | 5 A |
| 250 VAC | 15 A | 1.5 A |
| 480 VAC | 10 A | --- |
| 600 VAC | 5 A | --- |
*Non-Inductive (Resistive) Load: 75% min. Power Factor. Inductive (Pilot Duty) Load: 35% Power Factor.
Dimensions & Mounting Blueprint.
Precision Die-Cast Zinc Housing / NEMA 1, 4, 13
