Notifier FSP-851R Commercial Smoke Detector

The Notifier FSP-851R is a commercial smoke detector designed for compatible Notifier fire alarm systems. It provides dependable smoke detection and includes remote test capability for use with compatible DNR and DNRW duct detector housings.

The detector features rotary decimal addressing, dual status LEDs, automatic sensitivity monitoring, and a plug-in design that simplifies installation and maintenance. This product is intended exclusively for commercial fire alarm installations.

Product Functions

• Detects airborne smoke
• Reports fire alarm conditions
• Supports remote functional testing
• Monitors detector sensitivity
• Provides maintenance supervision
• Plug-in detector installation
• LED status indication

Electrical & System Information

The FSP-851R operates on compatible Notifier signaling line circuits and occupies one device address. Rotary decimal switches provide local device addressing, while the connected fire alarm control panel supervises detector status and sensitivity.

The detector is designed for use with compatible DNR and DNRW duct detector housings and approved Notifier fire alarm control panels.

Features

• Commercial smoke detection
• Remote test capability
• Rotary decimal addressing
• Dual LED status indicators
• Continuous sensitivity supervision
• Plug-in detector head
• Low-profile housing
• Remote LED support
• Indoor commercial application

Mounting & Design

The FSP-851R installs on compatible Notifier detector bases or within approved DNR and DNRW duct detector housings, depending on the application. Its plug-in construction allows efficient installation, testing, cleaning, and replacement without rewiring the installed base.

Protection & Applications

Suitable for:

• Office Buildings
• Schools
• Hospitals
• Hotels
• Retail Stores
• Warehouses
• Government Buildings
• Industrial Facilities
• Commercial Properties
• HVAC Duct Applications

Compatibility

Compatible with:

• Notifier Fire Alarm Control Panels
• ONYX Series Fire Alarm Systems
• FlashScan Signaling Line Circuits
• CLIP Compatible Systems
• B210LP Detector Base
• B501 Detector Base
• DNR Duct Detector Housing
• DNRW Weatherproof Duct Detector Housing
• RA400Z Remote LED Annunciator

Always verify compatibility with the installed fire alarm control panel, detector base, or duct housing before installation.

Technical Specifications

Manufacturer: Notifier

Parent Company: Honeywell

Model: FSP-851R

Product Type: Commercial Smoke Detector

Remote Test Capability: Yes

Operating Voltage: 15–32 VDC

Typical Standby Current: 300 µA @ 24 VDC

Maximum Alarm Current: 6.5 mA @ 24 VDC

Air Velocity: 0–4000 ft/min

Addressing: Rotary Decimal Switches

Status Indicators: Dual LEDs

Mounting: Compatible B210LP or B501 Detector Base; DNR/DNRW Duct Detector Housing

Application: Indoor Commercial Fire Alarm Systems

Listings: UL Listed, ULC Listed (FSP-851RA), FM Approved, CSFM Listed, MEA Approved (application dependent).

Applications

The Notifier FSP-851R is designed for commercial fire alarm systems requiring dependable smoke detection and remote testing capability. It is commonly installed in office buildings, schools, hospitals, hotels, warehouses, retail facilities, industrial buildings, and HVAC duct detection applications using compatible Notifier fire alarm equipment.

FSP-851R Datasheet