The Nascom N400TB-STSD N400T Brown Single Pole Double Throw Set is designed to enhance the security of steel doors in commercial environments. With its encapsulated hermetically sealed contacts and extra wide gap feature, this contact set minimizes the risk of false alarms due to door shifts or warping. Its flexible installation options and robust construction make it an ideal choice for reliable door protection.
Key Features
- Encapsulated Hermetically Sealed Contacts: Protects against dust and moisture, ensuring long-lasting performance in demanding environments.
- ABS Housing: Provides durability and resistance to impact, making it suitable for industrial applications.
- Extra Wide Gap – N35 NdFeB Rare Earth Magnet: Prevents false alarms caused by warping doors and windows, enhancing security reliability.
- Spacer For Steel Door Installs: Facilitates easy installation in steel door applications, improving versatility.
- Screw Terminals: Allows for straightforward wiring and secure connections, simplifying installation for technicians.
- Listed To UL634 Standard: Ensures compliance with safety standards, providing confidence in the product’s quality and reliability.
Additional Information
- Set: Switch/Magnet Set
- Color: Brown
- Flange: N
- Switch Size: L4.25″ X W0.750″ X H0.750″
- Magnet Size: L4.25″ X W0.750″ X H0.750″
- Termination: Terminal
- Circuit Configuration: SPDT
- Lead Length (in.): No
Detailed Specifications
| Feature | Details |
| Model | N400TB-STSD |
| Type | Single Pole Double Throw (SPDT) |
| Material | ABS Plastic |
| Size | Switch: L4.25″ X W0.750″ X H0.750″ |
| Magnet Size | L4.25″ X W0.750″ X H0.750″ |
| Color | Brown |
| Termination Type | Screw Terminals |
| Compliant Standard | UL634 |



















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