The New MRI-4021 / MRI-4021-ISO is a photoelectric & heat sensor that contently monitor the environment in order to provide early warning of a fire condition. All MRI-4000 series smoke sensors communicate with panels using a fully digital protocol.
FEATURES
- Designed to meet UL 268th 7th edition and CAN/ULC S529 Rev 4 standards.
- Utilize advanced software algorithms to differentiate between genuine fire alarms and false alarms.
- Protection against nuisance alarms caused by dust, insects, or other debris.
- Multiple sensitivity settings can be selected through the FACU.
- Two Heat Detection Settings, Fixed 135° F (57° C) and 135° F with ROR.
- Dual LED indicators, offering 360° visibility with distinct colors for Alarms and Troubles.
- Link up to any combination of 240 MRI-4000 series devices on a single SLC loop.
- Compatible with the full series of MRI-4000 standard/specialty bases, input, and control modules.
- Sensor is easily addressed through the hand-held device programmer (MIX-4090).
- Listed for both wall and ceiling mounting using compatible bases.
- Remote Output can be controlled by the FACU.
- Supports wire sizes ranging from 12 to 22 AWG.
BENEFITS
- Open style mounting bases offer easy wiring and low pressure locking
- In addition, all bases have a detachable tab for easy device address labeling
- The MRI-4021-ISO has a bi-directional short-circuit isolator in order to protect against wiring faults and loop failure
- Low standby current
- Magnet test option helps with commissioning and maintenance
ORDERING INFORMATION
| MRI-4021 | MULTI-SENSOR DETECTOR W/O ISOLATION |
| MRI-4021-ISO | MULTI-SENSOR DETECTOR WITH ISOLATION |
AGENCY LISTINGS
*Please contact local Secutron Sales Representative for regional availability.
