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Parts-O-Matic

EXP490 Microwave Door Switch (NC - NO) Normally Closed / Open

Description

🔌 EXP490 Microwave Door Switch (NC-NO) – Normally Closed / Normally Open

Ensure reliable microwave door safety and operation with the EXP490 dual terminal door switch, featuring both Normally Closed (NC) and Normally Open (NO) contacts. This versatile replacement is designed to replace a wide range of microwave door switches found in Whirlpool, GE, Samsung, LG, Frigidaire, Panasonic, Sharp, and other major brands.

✅ Key Features:

  • Dual-function switch – supports both NC (normally closed) and NO (normally open) circuits
  • Ideal for microwave interlock systems requiring multiple switching states
  • 3-terminal connection: COM (common), NC, NO
  • Rated for 16A / 250V, durable and reliable under high-use conditions
  • Compact, universal-fit design with 0.187" quick-connect terminals
  • Approvals: CCC CE UL VDE

🔁 Replaces OEM Part Numbers:

4392027, AP3109474, PS373050, WB24X10103, AP3186054, PS651389, 3405-001032, AP4044473, PS4131190, 3405-001032, 111697, 2028595, 3405-000175, AP4044473, PS4131190, WB24X10039, 875085, AH237007, EA237007, AP2024377, PS237007, W10915404, AP6036213, PS11769934, 4415A66910, AP4564986.

🧰 Typical Applications:

  • Door interlock safety systems
  • Multi-stage switch actions (e.g., one contact opens, one closes)
  • Microwaves that require both NC and NO switching for operation
  • Common in Magic Chef, Whirlpool, GE, Samsung, Panasonic, LG, Frigidaire, and more
📌 Check your original switch for markings like “COM,” “NC,” and “NO” to ensure proper compatibility.

⚠️ Fixes the Following Issues:

  • Microwave won't start when door is shut
  • Blows fuse when door is closed
  • Intermittent heating or cutting off mid-cycle
  • Buzzing noise or no response from control panel

🚚 Why Buy from Parts-O-Matic?

  • ✅ Quality aftermarket performance
  • ✅ Always Fast and Free U.S. shipping
  • ✅ Great for repair pros and DIYers
  • ✅ Bulk order support and responsive service

🛒 Replace faulty microwave door switches with confidence — order your EXP490 dual NC-NO door switch today at Parts-O-Matic.com, and enjoy fast, free shipping.

Product form

EXP490 Microwave Door Switch (NC - NO) Normally Closed / Open

Free Pickup in In Stock Parts-O-Matic - WB Store 1820 Featherstone Road Woodbridge, VA 22191 Usually ready in 1 hour
Online Shipped Price $10.75 List Price $8.99You Save: $1.76Delivered to your address
Store Walk-In
Discounted Price $4.75Walk-In Savings: $4.24In-store purchase only — not valid for online checkout
✓ IN STOCK
Ships Today if ordered within --:--:--
Free Pickup in our Store • Usually ready in 1 hour
Pickup Store: Parts-O-Matic — Woodbridge, VA
  • Shipped today? Order within: Sep 26, 2026 14:00:00 -0400

Description

🔌 EXP490 Microwave Door Switch (NC-NO) – Normally Closed / Normally Open

Ensure reliable microwave door safety and operation with the EXP490 dual terminal door switch, featuring both Normally Closed (NC) and Normally Open (NO) contacts. This versatile replacement is designed to replace a wide range of microwave door switches found in Whirlpool, GE, Samsung, LG, Frigidaire, Panasonic, Sharp, and other major brands.

✅ Key Features:

  • Dual-function switch – supports both NC (normally closed) and NO (normally open) circuits
  • Ideal for microwave interlock systems requiring multiple switching states
  • 3-terminal connection: COM (common), NC, NO
  • Rated for 16A / 250V, durable and reliable under high-use conditions
  • Compact, universal-fit design with 0.187" quick-connect terminals
  • Approvals: CCC CE UL VDE

🔁 Replaces OEM Part Numbers:

4392027, AP3109474, PS373050, WB24X10103, AP3186054, PS651389, 3405-001032, AP4044473, PS4131190, 3405-001032, 111697, 2028595, 3405-000175, AP4044473, PS4131190, WB24X10039, 875085, AH237007, EA237007, AP2024377, PS237007, W10915404, AP6036213, PS11769934, 4415A66910, AP4564986.

🧰 Typical Applications:

  • Door interlock safety systems
  • Multi-stage switch actions (e.g., one contact opens, one closes)
  • Microwaves that require both NC and NO switching for operation
  • Common in Magic Chef, Whirlpool, GE, Samsung, Panasonic, LG, Frigidaire, and more
📌 Check your original switch for markings like “COM,” “NC,” and “NO” to ensure proper compatibility.

⚠️ Fixes the Following Issues:

  • Microwave won't start when door is shut
  • Blows fuse when door is closed
  • Intermittent heating or cutting off mid-cycle
  • Buzzing noise or no response from control panel

🚚 Why Buy from Parts-O-Matic?

  • ✅ Quality aftermarket performance
  • ✅ Always Fast and Free U.S. shipping
  • ✅ Great for repair pros and DIYers
  • ✅ Bulk order support and responsive service

🛒 Replace faulty microwave door switches with confidence — order your EXP490 dual NC-NO door switch today at Parts-O-Matic.com, and enjoy fast, free shipping.

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    EXP490 Microwave Door Switch (NC - NO) Normally Closed / Open
    EXP490 Microwave Door Switch (NC - NO) Normally Closed / Open
    $10.75 $8.99