Product Description
8400-M-470-48-US3 Adams Rite Mortise Exit Device — Bright Brass
Ordering note — the monitoring switch is a second line on the order.
The M in 8400-M-470-48-US3 means this mortise exit device is specified for single-switch monitoring, so the door reports its own state back to an access control panel or alarm. Adams Rite does not build that switch into the device — it ships as a field kit. A monitored 8400 is two line items: this device, plus monitor kit 91-0897-01 (single switch). Order the device on its own and you get the device without the switch.
On a 30" door Adams Rite requires the MLR option before it will accept monitoring at all.
The M in 8400-M-470-48-US3 means this mortise exit device is specified for single-switch monitoring, so the door reports its own state back to an access control panel or alarm. Adams Rite does not build that switch into the device — it ships as a field kit. A monitored 8400 is two line items: this device, plus monitor kit 91-0897-01 (single switch). Order the device on its own and you get the device without the switch.
On a 30" door Adams Rite requires the MLR option before it will accept monitoring at all.
The Adams Rite 8400 mortise exit device is designed for narrow stile aluminum doors where panic hardware is required by code. The 8400-M-470-48-US3 ships in Bright Brass finish.
| SKU Breakdown: 8400-M-470-48-US3 | |
| 8400 | Adams Rite 8400 Narrow Stile Mortise Exit Device — Mortise Exit Device |
| M | Monitoring: Single Switch Monitor — the switch ships as separate kit 91-0897-01 |
| 48 | Door Width: 48" |
| US3 | Finish: Bright Brass (US3) |
| Brand | Adams Rite (ASSA ABLOY) |
| Product Type | Mortise Exit Device |
| Series | 8400 |
| Part Number | 8400-M-470-48-US3 |
| Finish | Bright Brass (US3) |
| Mount Type | Mortise |
| Country of Origin | USA |
| BAA Compliant | Yes |
| Warranty | Full Adams Rite Manufacturer Warranty |
- ANSI/BHMA A156.3 Grade 1 exit device
- Field-selectable handing — configure during installation
- Made in USA — Buy American Act (BAA) compliant
- In stock at Lock Depot — ships same day on orders placed before 3 PM EST
Works With / Cross-References: Pair with Adams Rite 3080 series entry trim for keyed entry. 3090 eForce keyless entry trim available for keypad access.
Product images are representative of the series and may not show the exact finish, handing, or configuration of this specific SKU. Always verify part number before ordering.
Lock Depot sells brand new Adams Rite products with the full manufacturer warranty.
Warranty Information
Five year limited manufacturer's warrantyProduct Videos
Custom Field
Product Type Exit Device
Series 8400
Finish Bright Brass
Mount Type Mortise
Fire Rated Non Fire Rated
Monitoring Single Switch
