EA120 DPDTEA120 DPDT Series
EA120DPDTFeatures• Non-contact magnetically actuated limit switch – no torque on actuatoror valve needed• Qualified to Westinghouse AP1000 Environmental Parameters• Manufacturing business system complies with 10CFR50, Appendix B,
10CFR Part 21, and ANSI N45.2• Proprietary SNAP-LOCK® technology that enables internal latchingmechanism to eliminate chatter under seismic or high vibration conditions• Available with QDC milled onto the Stainless steel housing• Available with pre-wired flying leads• Gold-plated, fine silver contacts• High temperature components

Technical Data

MAGNETIC PROXIMITY SWITCHES

www.namcocontrols.com• Double Pole Double Throw (DPDT) Form C contacts, quick make - quick break• Housing: Stainless steel• Size: Length: 4” (101.6mm)
Weight: 0.71lbs / 0.3kg (free lead version, excluding pig tails);
1.10lbs / 0.5kg (QDC connector, excluding cable assy)• PEEK insulated leads

Contact Rating
ACDCVolts

120V

240V

Amps

4A

2A

Volts

24V

48V

Amps

2A

1A

EA120 DPDT in Harsh Environment With Accident Conditions (LOCA/HELB)• Operating Temperature: -4° to 212°F (-20° to 100°C)
ProductDescription• Environmental qualification:
EA120-21XXX*DPDT w/ Flying Leads
Qualified for 100 years 112°F (40.5°C)
60 years 131°F (73°C)
EA120-22000
DPDT w/ QDCRadiation: 307 MRad gamma
EC390-29XXX*Plug In Cable Assy w/ QDC
Seismic: 8.8G
EA120-10001
Target Magnet
Pressure: 104psig (717 KPa) under LOCA condition*XXX
Designates
Lead
LengthMax Temperature: 540°F / 282°C (HELB)
480°F / 249°C (LOCA)
EA120 DPDT in Harsh Environment Without Accident Conditions• Operating Temperature: -4° to 212°F (-20° to 100°C)
Product• Environmental qualification:
EA120-61XXX*
Qualified for 100 years 112°F (62°C)
EA120-62000
60 years 131°F (73°C)
Radiation: 307 MRad gamma
EC590-29XXX*
Seismic: 8.8G
EA120-10001

Description
DPDT w/ Flying Leads
DPDT w/ QDCPlug In Cable Assy w/ QDC
Target Magnet*XXX - Designates Lead Length

EA120 DPDT in Mild Environment• Operating Temperature: -4° to 212°F (-20° to 100°C)• Environmental qualification:
Qualified for 60 years 112°F (40.5°C)
Radiation: < 1 Mrad
Seismic: 8.8GProductDescription

EA120-41XXX*DPDT w/ Flying Leads

EA120-42000

DPDT w/ QDC

EC490-29XXX*Plug In Cable Assy w/ QDC

EA120-10001

Target Magnet*XXX - Designates Lead Length
04182016

EA120 DPDT

Actuation/Sensing
Target magnet installed within 0.10” (2.54mm) of switch.

EA120 Switch

Target Magnet

Radial Actuation
Switch trips within 0.20” (5.08mm) from centerline. Switch releases outside 0.70” (17.78mm) from centerline.

All dimensions given in Inches (mm)1-800-390-6405 or 1-910-862-2511

04182016

MAGNETIC PROXIMITY SWITCHESAxial Actuation
Switch trips within 0.10” (2.54mm). Switch releases outside of 0.70” (17.78mm)

EA120 DPDTMAGNETIC PROXIMITY SWITCHES

www.namcocontrols.com

EA120 DPDT Series
Electrical Contact Information
Flying Leads option

Quick disconnect option

A

Normally Open 1

A

Normally Open 1

B

Normally Closed 1

B

Normally Closed 1

CCommon 1

CCommon 1

DCommon 2

DCommon 2

E

Normally Closed 2

E

Normally Closed 2

F

Normally Open 2

F

Normally Open 2

Mounting

Figure reflects switch in “actuated” position.
Two 1-14 UNS 2A jam nuts and two 1” lock washers supplied with switch.
Target magnet EA120-10001 required for operation (sold separately).
Average hysteresis: 0.20” (5mm) to 0.40” (10mm)

All dimensions given in Inches (mm)04182016

EA120 DPDT

Outline Drawings
DPDT Flying Leads Model

DPDT Quick Disconnect Model

04182016

All dimensions given in Inches (mm)1-800-390-6405 or 1-910-862-2511

MAGNETIC PROXIMITY SWITCHES

Target Magnet