The 3900LR36-US4MEC from Adams Rite is a fire-rated concealed vertical rod exit device without monitoring switch for wood doors in satin brass. The 3900 Series Exit Device has patented top latching mechanism interlocks door to frame with strong and durable construction for a high level of security. It features a clean, unobtrusive design and is very easy to install.
Features
- Satin Brass pushbar finish: Adds an elegant touch while ensuring durability and resistance to corrosion.
- Pushbar length: 36 inches, providing ample space for easy operation.
- Fire rating: 20 Min, ensuring safety compliance for fire-rated exits.
- Electric Latch Retraction: Allows for convenient access control integration.
- Matching End Caps: Provide a seamless and professional look.
- Door construction: Suitable for hollow metal or wood doors, offering versatility in application.
- Pushbar material: Made of extruded aluminum, clad or anodized material for increased durability.
- Door Thickness: Suits 1-3/4″ standard, accommodating most commercial door sizes.
- Projection: 2-5/8″ when fully projected, 1-5/8″ when dogged, ensuring reliable functionality.
- Non-handed operation: Lever entry trim is field reversible for flexible installation options.
- Patented top latching mechanism: Interlocks the door to frame, enhancing security.
- Strong and durable construction: Provides a high level of security for peace of mind.
- Easy to install: Features a clean and unobtrusive design that simplifies the installation process.
- Grade 1 strength: Meets the highest standards for performance and durability.
- Max Size Single Doors: 4’0″ x 9’0″, suitable for a variety of door sizes.
- Max Size Pairs and Double Egress: 8’0″ x 9’0″, accommodating larger openings.
- Standard Rod: Ensures consistent performance across applications.
- Standard self-tapping screws fastener: Simplifies installation and ensures a secure fit.
- Standard dogging: Available with hex key or cylinder dogging for user convenience.
- No monitoring switch feature: Focuses on reliable exit functionality without additional complexity.
Adams Rite 3900LR36-US4MEC Detailed Specifications
| Feature | Details |
|---|---|
| Pushbar Finish | Satin Brass |
| Pushbar Length | 36 inches |
| Fire Rating | 20 Min |
| Door Construction | Hollow metal or wood |
| Pushbar Material | Extruded aluminum, clad or anodized |
| Door Thickness | Suits 1-3/4″ standard |
| Projection | 2-5/8″ (fully projected), 1-5/8″ (dogged) |
| Operation | Non-handed, lever entry trim field reversible |
| Max Size Single Doors | 4’0″ x 9’0″ |
| Max Size Pairs and Double Egress | 8’0″ x 9’0″ |
| Strength Grade | Grade 1 |
| Installation Features | Standard self-tapping screws, easy installation |
| Standard Dogging | Hex key or cylinder dogging |
| Monitoring Switch | No monitoring switch feature |



















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