Description

The Notifier FSP-851 is a commercial smoke detector designed for compatible Notifier fire alarm control panels. Its sensing chamber detects smoke produced by a broad range of combustion sources while the connected panel supervises detector sensitivity and operating status.

The detector features rotary configuration switches, dual LED indicators, a removable sensing chamber, and plug-in mounting for straightforward installation and maintenance. This product is intended exclusively for commercial fire alarm installations.

Product Functions

• Detects airborne smoke
• Reports fire alarm conditions to a compatible control panel
• Supports adjustable sensitivity settings
• Provides continuous sensitivity supervision
• Identifies maintenance requirements
• Provides visible operating-status indication
• Supports routine inspection and functional testing

Electrical & System Information

The FSP-851 connects to a compatible Notifier signaling line circuit and occupies one programmed device location. Rotary decimal switches allow technicians to configure the detector during installation.

The connected fire alarm panel evaluates detector conditions, supervises sensitivity, and identifies the installed location for alarm response and maintenance. A compatible detector base is required and may be sold separately.

Features

• Commercial smoke detection
• Adjustable sensitivity through compatible panel programming
• Continuous sensitivity supervision
• Rotary decimal configuration switches
• Dual LED status indicators
• Removable sensing chamber
• Low-profile white housing
• Plug-in detector design
• Optional tamper resistance
• Remote LED accessory support

Mounting & Design

The FSP-851 installs on a compatible Notifier detector base mounted to an approved electrical box. Its plug-in construction allows technicians to remove the detector for testing, cleaning, or replacement without rewiring the installed base.

Protection & Applications

Suitable for:

• Office Buildings
• Schools
• Healthcare Facilities
• Hotels
• Retail Properties
• Warehouses
• Government Buildings
• Industrial Facilities
• Commercial Properties

Compatibility

Compatible with selected:

• Notifier Fire Alarm Control Panels
• FlashScan Fire Alarm Circuits
• CLIP-Compatible Systems
• B210LP Detector Base
• B501 Detector Base
• B224RB Relay Base
• B224BI Isolator Base
• RA400Z Remote LED Annunciator

Always verify the control panel, software version, detector base, and project approval requirements before installation.

Technical Specifications

Manufacturer: Notifier

Parent Company: Honeywell

Model: FSP-851

Product Type: Commercial Smoke Detector

Detection Method: Smoke-Sensing Chamber

Operating Voltage: 15–32 VDC

Typical Standby Current: 300 µA at 24 VDC

Configuration: Rotary Decimal Switches

Sensitivity: Adjustable Through Compatible Panel Programming

Status Indicators: Dual LEDs

Operating Temperature: 32°F to 120°F (0°C to 49°C)

Relative Humidity: 10%–93% Non-Condensing

Air Velocity Rating: 0–4,000 Feet per Minute

Housing Color: White

Mounting Base: Required and May Be Sold Separately

Installation: Indoor Commercial Fire Alarm Systems

Listings: UL, ULC, FM, and CSFM; verify the specific model label and application requirements

Applications

The Notifier FSP-851 is used in compatible commercial fire alarm systems requiring dependable smoke detection and individual device identification. Typical applications include offices, schools, hospitals, hotels, warehouses, retail facilities, government buildings, and industrial properties.

FSP-851 Datasheet