4098-9780 Simplex supervised relay base
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4098-9780 Simplex Supervised Relay Base – 2-Wire Plug-In Detector Base for TrueAlarm Sensors with HVAC, Door Holder & Elevator Recall Control

$95.00

  • Model: 4098-9780
  • Type: Supervised Relay Sensor Base
  • Wiring: 2-wire plug-in (power + data)
  • Relay Function: Programmable, supervised operation
  • Compatible Sensors: Simplex TrueAlarm analog series
  • External Relay Support: 4098-9860 (local or remote mounted)
  • Indicator Support: Remote LED alarm indicator wiring
  • Optional Relay: 4098-9822 (unsupervised, needs 24 VDC)
  • Primary Panel Compatibility: 4007ES, 4010, 4010ES, 4100ES, 4100U Series
  • Legacy Panel Compatibility: 4008, 4020, 4100, 4120 Series + MAPNET II Transponder

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4098-9780 Simplex supervised relay base
4098-9780 Simplex Supervised Relay Base – 2-Wire Plug-In Detector Base for TrueAlarm Sensors with HVAC, Door Holder & Elevator Recall Control
$95.00

4098-9780 Simplex Supervised Relay Base

The Simplex 4098-9780 Supervised Relay Base is a 2-wire plug-in sensor base purpose-built for TrueAlarm analog smoke and heat sensors. Designed for commercial fire alarm installations, this base delivers programmable supervised relay operation – ideal where auxiliary equipment such as door holders, fan shutdowns, or elevator recall needs to respond to detector activation. The 4098-9780 draws power directly from the IDNet or MAPNET II communication loop, eliminating the need for a separate 24 VDC supply. Its ability to work with both locally mounted and remote 4098-9860 relays gives installers real flexibility across retrofit and new-build projects, while keeping the overall wiring count lower than conventional alternatives.

Features

  • Plug-in 2-wire design pulls both power and data from the IDNet / MAPNET II loop – no separate supply required
  • Programmable supervised relay operation with manual override available from the fire alarm control unit
  • Supports remote or locally mounted 4098-9860 relay accessory for flexible application routing
  • Built-in terminals for remote LED alarm indicator wiring simplify multi-zone visibility
  • Optional 4098-9822 unsupervised relay compatibility for expanded control functions
  • Broad Simplex panel compatibility including 4007ES, 4010ES, 4100ES, 4100U, and legacy 4020 / 4100 / 4120 Series

Benefits

Choosing the 4098-9780 reduces wiring complexity because the base doubles as both detector holder and supervised relay without requiring separate control runs. For facility managers maintaining older Simplex infrastructure, this base delivers a smooth upgrade path it is backward-compatible with legacy 4020, 4100, and 4120 panels while integrating cleanly with modern 4100ES systems. Supervised operation means the panel continuously verifies relay integrity, reducing the risk of silent failures that can compromise life-safety interlocks. Installers appreciate the plug-in form factor because it cuts commissioning time on large projects, and end users gain reliable activation of critical auxiliary systems during an alarm event.

Why Choose QuickShipFire?

  • Genuine 4098-9780 bases packaged in Simplex manufacturer boxes, ready for same-day dispatch
  • Simplex-specific compatibility verification before you order – we cross-check against your existing 4010ES or 4100U panel
  • Stocked alongside matching 4098-9860 accessory relays so the full assembly ships together
  • 30-day return window to confirm the base fits your retrofit spec before final commitment
  • Direct phone support from staff who have actually installed Simplex systems not generic call-center reps
Does the 4098-9780 base require a separate 24 VDC power supply?
No. The 4098-9780 draws power directly from the 2-wire IDNet or MAPNET II loop. Only the optional 4098-9822 unsupervised relay requires a separate 24 VDC source.
Which Simplex control panels is the 4098-9780 compatible with?
The 4098-9780 works at full functionality with 4007ES, 4010, 4010ES, 4100ES, and 4100U Series panels. It also supports 4008, 4020, 4100, 4120 Series and Universal Transponders, with a reduced feature set on some legacy units.
Can I use the 4098-9780 base with a remote-mounted relay?
Yes. The base supports the 4098-9860 relay mounted either locally to the base or in a remote location, giving installers flexibility on where the relay contacts actuate.
What types of auxiliary equipment can the supervised relay control?
The relay is commonly programmed to trigger door holders, HVAC fan shutdown, damper operation, elevator recall, and other fire-alarm-initiated auxiliary functions.
How is the 4098-9780 different from the 4098-9789 sensor base?
The 4098-9780 includes supervised relay operation for auxiliary control, while the 4098-9789 is a wired-connection sensor base without the integrated relay supervision function.
Does the relay stay supervised if I manually override it from the panel?
Yes. Manual control from the fire alarm control unit does not disable supervision — the panel continues to monitor the relay circuit for open or short faults throughout override operation.
Can the 4098-9780 be installed in retrofit projects on older Simplex systems?
Absolutely. The 4098-9780 is one of the go-to retrofit options because it is compatible with legacy Simplex 4020, 4100, and 4120 panels while supporting current-generation 4100ES and 4100U units.
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