EA120 SPDT

EA120 SPDT

EA120 SPDT SeriesFeatures• 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 throughout• Seismic and vibration resistantTechnical Data
• Single Pole Double Throw (SPDT) Form C contacts, quick make - quick break• Housing: Stainless steel• Size:Length: 4” (101.6mm)
Weight: 0.45lbs / 0.2kg (free lead version, excluding pig tails);
0.55lbs / 0.25kg (QDC connector, excluding cable assy)• PEEK insulated leads

Contact Rating:
ACDC

Volts

120V

240V

Amps

4A

2A

Volts

24V

48V

Amps

2A

1A

MAGNETIC PROXIMITY SWITCHES

www.namcocontrols.com

EA120 SPDT in Harsh Environment With Accident Conditions (LOCA/HELB)• Operating Temperature: -4° to 212°F (-20° to 100°C)• Environmental qualification:
Qualified for 100 years 112°F (40.5°C)
60 years 131°F (73°C)
Radiation: 363 MRad gamma
Seismic: 8.8G
Pressure: 104psig (717 KPa) under LOCA condition
Max Temperature: 540°F / 282°C (HELB)
480°F / 249°C (LOCA)

Product

Description

EA120-11XXX*

SPDT w/ Flying Leads

EA120-12000

SPDT w/ QDCEC390-44XXX*

Plug In Cable Assy for SPDT w/ QDC

EA120-10001

Target Magnet

EA120-10002

Target Magnet (0.25” Actuation)*XXX - Designates Lead Length

EA120 SPDT in Harsh Environment Without Accident Conditions• Operating Temperature: -4° to 212°F (-20° to 100°C)• Environmental qualification:
Qualified for 100 years 112°F (62°C)
60 years 131°F (73°C)
Radiation: 363 MRad gamma
Seismic: 8.8G

ProductDescription

EA120-51XXX*

SPDT w/ Flying Leads

EA120-52000

SPDT w/ QDC

EC590-44XXX*

Plug In Cable Assy for SPDT w/ QDC

EA120-10001

Target Magnet

EA120-10002

Target Magnet (0.25” Actuation)*XXX - Designates Lead Length

EA120 SPDT 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: 8.8GProduct

Description

EA120-31XXX*

SPDT w/ Flying Leads

EA120-32000

SPDT w/ QDC

EC490-44XXX*

Plug In Cable Assy for SPDT w/ QDC

EA120-10001

Target Magnet

EA120-10002

Target Magnet (0.25” Actuation)*XXX - Designates Lead Length

EA120 SPDT

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 0.60” (15.24mm) from centerline.

1-800-390-6405 or 1-910-862-2511

All dimensions given in Inches (mm)MAGNETIC PROXIMITY SWITCHES

Axial Actuation
Switch trips within 0.10” (2.54mm). Switch releases outside of 0.50” (12.7mm)

EA120 SPDT

EA120 SPDT Series
Electrical Contact Information
Free-leads option

Quick disconnect option

A

Normally OpenA

Normally OpenB

Reserved

B

CommonCCommonC

Normally Closed

D

Normally Closed

MAGNETIC PROXIMITY SWITCHES

www.namcocontrols.com

Mounting

Figure reflects switch in “actuated” position.
Two 5/8-18 jam nuts and two 5/8” 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)SPDT Flying Leads ModelLEAD
LENGTH

EA120 SPDT

Outline Drawings

SPDT Quick Disconnect ModelAll dimensions given in Inches (mm)1-800-390-6405 or 1-910-862-2511

MAGNETIC PROXIMITY SWITCHES

Target Magnet