Snap-Lock® DPDT Extreme Duty Logic.
Heavy-duty 2NO/2NC contact logic designed for severe mechanical environments where precision locking and high torque are required.
Extreme Torque,
Zero Compromise.
The EA170 series is the choice for severe mechanical loads where standard SPDT switches lack the capacity or contact density.
Contact Arcing
High-current industrial loads cause rapid contact wear and arcing in standard switches.
Torque Degradation
Repeated high-torque cycles lead to mechanical drift and trip-point instability.
Enclosure Breach
Cutting oils and caustic coolants bypass standard seals, leading to internal corrosion.
Mounting Inflexibility
Limited mounting options force awkward mechanical linkages and increase failure risk.
EA170
Operational Data
| Variation | Trip | Reset | Total | Max Torque |
|---|---|---|---|---|
| STANDARD SHAFT | 10° | 8° | 37° | 23 lb-in |
| SHORT TRAVEL | 6°30' | 4° | 36° | 32-45 lb-in |
| REVERSE SHAFT | 10° | 8° | 37° | 23 lb-in |
Operating Lever is adjustable by 7°30' increments. Recommended travel for reliable contact seating is 13° (Standard/Reverse) or 7° (Short).


Modular Control,
Severe Reliability.
Meets NEMA 1, 4 & 13 requirements. Contacts are made of silver alloy with a quick-make, quick-break shifting mechanism that is locked in position until actuated. Form "Z" contact arrangement provides true DPDT logic for complex control requirements.
DPDT Rocker Logic
Dual Pole, Dual Throw (2NO/2NC) configuration for versatile control circuit management.
Extreme Torque Performance
Engineered for 45 lb-in total torque capacity with precise Snap-Lock locking.
Modular Enclosure Logic
Meets NEMA 1, 4, and 13 as standard, with NEMA 4X and Geothermal options available.
High-Temp Specialized
Available configurations for extreme environments ranging from -40°C up to +150°C.
Contact Ratings
| Voltage (Volts) | 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 | --- |
75-100% Power Factor Rating • Geothermal Ready
EA170
Ordering Structure
EA170-11100
Standard / CW Travel / Standard Enclosure
Dimensions & Blueprint Logic.
Industrial Scale Drawing • Standard, Wide, and Long Mounting


