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Hardware Maintenance
Nexa3D Miniature Door Interlock Switch, Normally Closed, for NX Resin 3D Printers – P/N 50383-01
Genuine Nexa3D miniature door interlock switch (P/N 50383-01) — the normally-closed safety switch that tells NX-platform resin 3D printers when the door or lid is open. In stock at our US facility, ships in 2 business days.
- ✓ Normally-closed (NC) miniature interlock switch
- ✓ Genuine Nexa3D safety part — direct replacement
- ✓ In US stock · ships in 2 business days
$11
Price held 7 days after order.
Keep your printer safe
A safety part, done right
Part number 50383-01 — the normally-closed interlock switch Nexa3D specifies to sense door position. A safety-critical part: fit the genuine switch so the printer pauses reliably when the door opens.
Ships in 2 business days
In stock at our US facility. Order a replacement and keep your resin printer in production — no overseas lead times on maintenance parts. Sub-24h response from a team that runs these machines.
About this product
Compatibility & Specifications
The Nexa3D miniature door interlock switch, part number 50383-01, is the normally-closed (NC) safety switch that senses when the door or lid of an NX-platform LSPc resin 3D printer is open, so the controller can pause the process. It is a small snap-action switch wired into the printer’s interlock circuit.
- Part number: 50383-01 (Rev A)
- Type: Miniature door interlock switch — normally closed (NC)
- Function: Door / lid position sensing for the safety interlock
- Brand: Nexa3D — made in USA
- Compatibility: Nexa3D NX-platform resin 3D printers — confirm the part number against your printer’s service parts list
Why Source Through Additive Plus
This is a safety part, so fit matters. We sell and support Nexa3D systems and stock the genuine normally-closed switch — not a generic substitute that could be wired the wrong way. It is kept in US inventory and ships in two business days, with no overseas lead time on maintenance parts. Need several units or an official purchase order? Contact us.
| Brand | Nexa3D |
| Country of origin | USA |
| Platform | NX |
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· 2 Business DaysCommon questions
Don't see yours? Email [email protected] — NDA standard, typical reply within 4 hours.
What does this door switch do and which printers does it fit?
The miniature normally-closed switch (P/N 50383-01) is the door/lid interlock on Nexa3D NX-platform resin 3D printers — it signals the controller when the door is open so the machine can pause safely. Service configurations vary by revision, so confirm the part number against your printer's service parts list, or send us your serial number and we'll verify fit before you order.
Is it normally closed or normally open?
This is the normally-closed (NC) version, part number 50383-01. Order the switch that matches your printer's wiring — an NC switch cannot be substituted with a normally-open one without changing how the interlock is read. If you are unsure which your machine uses, contact us with the serial number.
How quickly does it ship?
The door switch is kept in US inventory and ships within two business days, with no overseas lead time on this maintenance part. If you need multiple units or an official purchase order for maintenance stock, contact us and we'll arrange it.
Place your order, or talk to an engineer first
Order Nexa3D Miniature Door Interlock Switch, Normally Closed, for NX Resin 3D Printers – P/N 50383-01 direct, or talk to materials engineer