Simplex 4090-9006 — suppression release peripheral (SRP), supplied pre-mounted in a red NEMA 1 enclosure.
The 4090-9006 is the releasing device for IDNet addressable systems: it is what actually fires a suppression system — clean agent, pre-action, deluge — on command from the fire alarm control panel. It communicates with the panel over the IDNet channel and includes built-in abort functionality.
Release uses dual command control: both the IDNet communications command and an activated NAC must be present before the peripheral will initiate. That two-condition requirement is the safeguard against an unintended discharge from a single fault or a single command.
The unit ships as a complete assembly, peripheral module plus enclosure. The red NEMA 1 box is not cosmetic — mounting in it is a condition of the ULC certification. IDNet channel terminals (TB3) accept two 12 to 18 AWG conductors per terminal.
Verify the releasing sequence and agent-specific requirements against the Simplex application documentation for your panel before commissioning.
Documents
FAQ
What is the difference between the 4090-9005 and 4090-9006?
The 4090-9005 is the basic suppression release peripheral on a mounting plate and needs the 2975-9227 red NEMA 1 box ordered separately. The 4090-9006 comes mounted in the NEMA 1 red box, required for ULC certification, with an LED indicator on the door.
How does it prevent an unwanted release?
Dual input control logic requires both an IDNet communications command and an activated NAC before it initiates a release.
How many actuators per circuit?
Releasing connections are 2-wire Class B circuits with one 24 VDC actuator per circuit, or where applicable two 12 VDC actuators in series.
Is coil supervision included?
The RAC output supervises actuator wiring, including coil continuity and short circuit supervision. The 2081-9046 coil supervision module is wired as described in the releasing system requirements.
