The Secutron MRI-4050 is a sync module for MGC notification appliances. It synchronizes strobe flashes with the audio signal pattern. As a result, the device complies with NFPA 72 sync requirements without requiring programming.
First, the MRI-4050 synchronizes one Class A or two Class B NAC lines. In addition, the same protocol can silence horns while keeping strobes flashing. Furthermore, no SLC address is required — the module sits between the panel NAC and the field appliances.
How the Secutron MRI-4050 Operates
Specifically, the module is fail-safe. By default, an internal relay passes NAC power straight through to the field appliances. As a result, a sync-module failure cannot silence the NAC.
Also, the MRI-4050 has an isolated silence input. Furthermore, the isolated sync I/O lets you chain up to twenty MRI-4050 modules together. Therefore, building-wide strobe sync needs no extra programming on the panel.
Compatible Notification Appliances
- MGC FH-400 Series horns and strobes
- MGC FHS-400 Series horn-strobes
- MGC SPPS Series speakers and speaker-strobes
Power and Panel Compatibility
The MRI-4050 works with any UL or ULC listed panel or power supply. Specifically, it accepts regulated 24 V DC or 24 V FWR on the NAC input. In addition, the module draws no power during standby. Therefore, total NAC budget is preserved for the notification appliances themselves.
Key Features
- Synchronizes one Class A or two Class B NAC lines
- No programming or addressing required
- Fail-safe — internal relay passes power by default
- Isolated silence input
- Isolated sync I/O for chaining up to 20 modules
- Zero standby current draw
- Built-in LED indicates module activation
- Mounts in a 4-inch square or double-gang back box
- Compatible with any UL/ULC listed 24 V DC or 24 V FWR NAC supply
Agency Listings and Standards
- UL Listed
- ULC Listed
- CSFM
- Complies with NFPA 72 sync requirements (2016 edition)
Specifications
- Operating Temperature: 32 °F to 120 °F (0 °C to 49 °C)
Order the Secutron MRI-4050
Life Safety Consultants stocks the MRI-4050 alongside the MGC FH-400, FHS-400, and SPPS notification appliances. To scope a sync application, call 1-888-557-0558. Alternatively, email sales@lifesafetycom.com.
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | 0.6 lbs |
|---|---|
| Dimensions | 6 × 6 × 2 in |
| Condition | New |
| Manufacturers | Secutron |
| Part Type | Module |






