Apollo XP95 Optical Addressable Fire Alarm Smoke Detector – White | 55000-600APO

Intelligent Addressable Optical Smoke Detector for Reliable Fire Detection

The Apollo XP95 Optical Addressable Smoke Detector (55000-600APO) is a high-performance fire detection device designed for use with compatible Apollo XP95 addressable fire alarm systems.

Manufactured by Apollo Fire Detectors, this optical smoke detector uses the photoelectric light-scattering principle to detect smoke particles produced by a range of slow-burning and smouldering fires.

Part of the established Apollo XP95 range, the 55000-600APO provides dependable smoke detection for commercial buildings, hotels, offices, restaurants, retail premises and residential accommodation served by compatible addressable fire alarm systems.

The detector incorporates a specially designed horizontal optical chamber containing an infrared light emitter and sensor. These components are arranged to detect light scattered forwards by smoke particles entering the chamber.

This detection method makes the XP95 Optical Smoke Detector particularly suitable for identifying smoke generated by slow-developing fires, including smouldering materials.

Designed for reliable operation across a wide range of environmental conditions, the detector has an operating temperature range of -20°C to +60°C, making it suitable for appropriately specified installations where temperatures may vary.

Its optical detection performance is unaffected by wind speed and atmospheric pressure, helping provide consistent operation across a range of building environments.

The detector communicates with compatible addressable fire alarm control equipment using the Apollo XP95 protocol, allowing the fire alarm system to identify and monitor individual devices.

With a low quiescent current of just 340µA, the 55000-600APO is designed for efficient operation on compatible addressable detection loops.

The detector also features a red alarm status indicator, providing a clear visual indication when the device enters an alarm condition.

Manufactured with a durable white polycarbonate housing, the Apollo XP95 Optical Smoke Detector has a compact diameter of 100mm, a height of 42mm and a weight of approximately 105g.

Conforming to EN 54-7 and supported by CPR, KRS and LPCB approvals, the detector is suitable for professionally designed fire alarm installations.

Backed by a 10-year manufacturer warranty, the Apollo XP95 55000-600APO is a reliable choice for new fire alarm installations, system upgrades and compatible detector replacements.

Important: The 55000-600APO is an addressable smoke detector head. It requires a compatible XP95 fire alarm system and suitable detector mounting base to operate.

Key Features

• Apollo XP95 Optical Addressable Smoke Detector
• Manufacturer Part Number: 55000-600APO
• Brand: Apollo Fire Detectors
• Product Range: XP95
• Detector Type: Optical Smoke Detector
• System Type: Addressable Fire Alarm
• Detection Principle: Photoelectric Light Scattering
• Designed to detect smoke from slow-burning and smouldering fires
• Horizontal optical chamber with infrared emitter and sensor
• Chevron-style smoke detection chamber
• Suitable for compatible Apollo XP95 fire alarm systems
• Operating Voltage: 17–28V DC
• Quiescent Current: 340µA
• Power-Up Surge Current: 1mA
• Maximum Power-Up Time: 4 Seconds
• Sampling Frequency: Once Per Second
• Protocol Voltage: 5–9V Peak-to-Peak
• Nominal Analogue Value: 25
• Analogue Value Tolerance: ±7
• Alarm Level Analogue Value: 55
• Alarm Indicator: Red
• Fault Indicator: Off
• Operating Temperature: -20°C to +60°C
• Storage Temperature: -30°C to +80°C
• Operating Humidity: 0–95% RH, Non-Condensing
• Unaffected by wind speed
• Unaffected by atmospheric pressure
• Housing Material: Polycarbonate
• Terminal Material: Nickel-Plated Stainless Steel
• Colour: White
• Diameter: 100mm
• Height: 42mm
• Weight: 105g
• Product Standard: EN 54-7
• Approvals: CPR, KRS and LPCB
• Manufacturer Warranty: 10 Years
• Ideal for hotels, offices, retail premises and escape routes
• Designed for professional fire alarm installations

Advanced Photoelectric Smoke Detection

The Apollo XP95 55000-600APO uses the photoelectric light-scattering principle to detect smoke particles.

Inside the detector, an infrared emitter directs light through a specially designed optical chamber.

Under normal clean-air conditions, very little light reaches the optical sensor.

When smoke particles enter the chamber, they scatter the infrared light.

The sensor detects this scattered light and the detector generates an analogue signal corresponding to the detected smoke level.

Benefits of Photoelectric Smoke Detection

• Effective detection of slow-burning fires
• Particularly suitable for smouldering fire conditions
• Designed for early smoke detection
• Suitable for occupied buildings
• Practical for escape routes
• Supports addressable fire alarm monitoring
• Suitable for a range of commercial environments

Optical smoke detectors are commonly selected for environments where smoke from smouldering materials is an important fire detection consideration.

The correct detector type must always be selected according to the fire risk assessment and applicable fire alarm design standards.

Designed for Slow-Burning and Smouldering Fires

A key benefit of the Apollo XP95 Optical Smoke Detector is its suitability for detecting smoke associated with slow-burning and smouldering fires.

Smouldering fires may develop gradually and produce significant quantities of visible smoke before open flames appear.

The XP95 optical chamber is designed to respond to smoke particles associated with these fire conditions.

Typical Fire Detection Applications

• Smouldering furniture materials
• Slow-burning furnishings
• Smoke-producing electrical faults
• General occupied rooms
• Bedrooms
• Hotel accommodation
• Office environments
• Escape routes

The detector is intended to form part of a complete fire detection and alarm system.

Important: No single detector technology is ideal for every fire type or environment. Detector selection and positioning must follow the fire alarm system design.

Apollo XP95 Addressable Fire Alarm Technology

The 55000-600APO forms part of Apollo's established XP95 addressable fire detection range.

Unlike conventional fire alarm detectors, addressable detectors communicate with compatible fire alarm control equipment using an individual device address.

This allows the control panel to identify the detector and monitor its reported condition.

Benefits of Addressable Fire Detection

• Individual device identification
• Compatible with XP95 addressable control systems
• Supports system monitoring and diagnostics
• Suitable for medium and large buildings
• Practical for commercial fire alarm installations
• Supports planned maintenance and testing
• Suitable for compatible system upgrades

The XP95 protocol allows the detector to communicate analogue information to the fire alarm control panel.

The panel interprets the information according to its configuration and system programming.

Compatibility Note: The 55000-600APO must be used with a fire alarm control panel and detection loop that support the Apollo XP95 protocol.

It is not a standalone domestic smoke alarm.

Intelligent Analogue Smoke Monitoring

The Apollo XP95 Optical Smoke Detector communicates analogue information to compatible fire alarm control equipment.

The detector has a nominal analogue value of 25, with a tolerance of ±7.

The specified alarm-level analogue value is 55.

Analogue Performance

• Nominal Analogue Value: 25
• Negative Tolerance: -7
• Positive Tolerance: +7
• Nominal Analogue Range: 18–32
• Alarm Level Analogue Value: 55
• Sampling Frequency: Once Per Second

These values form part of the detector's XP95 communication characteristics.

Benefits of Analogue Monitoring

• Provides detector information to compatible control panels
• Supports addressable fire alarm operation
• Allows individual device monitoring
• Supports maintenance and fault investigation
• Suitable for professional fire detection systems

The interpretation of analogue values and alarm conditions depends on the connected fire alarm control equipment.

Reliable Operation Across a Wide Temperature Range

The Apollo XP95 55000-600APO is designed for reliable operation across a broad temperature range.

-20°C to +60°C, the detector is suitable for appropriately specified environments where ambient temperatures may vary.

Environmental Operating Conditions

• Minimum Operating Temperature: -20°C
• Maximum Operating Temperature: +60°C
• Minimum Storage Temperature: -30°C
• Maximum Storage Temperature: +80°C
• Operating Humidity: 0–95% Relative Humidity
• Condensation: Not Permitted
• Icing: Not Permitted

Benefits of Wide Temperature Operation

• Suitable for a range of indoor environments
• Supports installations with varying ambient temperatures
• Practical for commercial buildings
• Suitable for correctly specified plant and service areas
• Reliable operation within manufacturer limits

Important: The wide temperature rating does not make the detector waterproof, weatherproof or suitable for every harsh environment.

The detector must be installed where its environmental and contamination limits can be maintained.

Unaffected by Wind Speed and Atmospheric Pressure

The Apollo XP95 Optical Smoke Detector is designed so that its detection performance is unaffected by wind speed and atmospheric pressure within its intended operating conditions.

This supports consistent smoke detection performance across suitable building environments.

Environmental Performance Benefits

• Unaffected by wind speed
• Unaffected by atmospheric pressure
• Designed for consistent optical detection
• Suitable for a variety of building environments
• Practical for professional fire alarm installations

Air movement, ventilation patterns and detector positioning must still be considered during fire alarm system design.

Ideal for Escape Routes

The Apollo XP95 55000-600APO is particularly suitable for appropriately designed fire detection systems protecting escape routes.

Escape routes are important areas within a building's fire safety strategy.

Smoke detection in these locations can help the fire alarm system identify developing fire conditions and initiate the appropriate alarm response.

Typical Escape Route Applications

• Corridors
• Internal circulation areas
• Hotel corridors
• Office escape routes
• Communal residential areas
• Protected circulation spaces
• Commercial building escape routes

Detector positioning, spacing and suitability must be determined by the fire alarm designer in accordance with applicable standards.

Suitable for Hotels and Residential Accommodation

The Apollo XP95 Optical Smoke Detector is suitable for use in compatible fire alarm systems installed in hotels and residential accommodation.

Its optical detection technology is particularly relevant to occupied rooms where slow-burning and smouldering fires may occur.

Typical Applications

• Hotel bedrooms
• Guest accommodation
• Communal residential areas
• Apartment buildings
• Managed residential premises
• Corridors
• Shared circulation spaces

The detector is intended for connection to a compatible addressable fire alarm system.

It is not a self-contained battery-powered domestic smoke alarm.

Suitable for Offices, Restaurants and Retail Premises

The Apollo XP95 55000-600APO is also suitable for a wide range of commercial fire alarm installations.

Its addressable communication and optical detection technology make it a practical choice for medium and large buildings.

Commercial Applications

• Offices
• Retail premises
• Hotels
• Restaurants
• Commercial buildings
• Business centres
• Public buildings
• Managed facilities
• Medium-sized buildings
• Large buildings

Important: Optical smoke detectors may not be appropriate in locations where cooking fumes, steam, dust or other airborne contaminants are likely to cause unwanted alarms.

Alternative detector types should be considered where required by the fire alarm design.

Low Power Consumption for Addressable Detection Loops

The Apollo XP95 Optical Smoke Detector has a low quiescent current of 340µA.

This helps support efficient operation within compatible addressable fire alarm systems.

Electrical Performance

• Supply Voltage: 17–28V DC
• Quiescent Current: 340µA
• Power-Up Surge Current: 1mA
• Maximum Power-Up Time: 4 Seconds
• Protocol Voltage: 5–9V Peak-to-Peak

Benefits of Low Current Operation

• Suitable for addressable fire alarm loops
• Supports efficient system design
• Practical for installations with multiple detectors
• Designed for compatible XP95 systems
• Suitable for medium and large buildings

The maximum number of detectors on a loop depends on the control panel, loop loading, cable characteristics and overall system design.

Red Alarm Status Indicator

The Apollo XP95 55000-600APO incorporates a red alarm status indicator.

This provides a visual indication when the detector is in an alarm condition.

Status Indicator Information

• Alarm Indicator Colour: Red
• Fault Indicator State: Off

Benefits of the Alarm Indicator

• Clear visual alarm indication
• Supports detector identification
• Useful during testing and commissioning
• Practical for maintenance engineers
• Suitable for addressable fire alarm installations

The detector's indication behaviour is controlled by its operating conditions and the compatible fire alarm system.

Durable White Polycarbonate Housing

The Apollo XP95 Optical Smoke Detector features a durable white polycarbonate housing.

The compact circular design is suitable for ceiling-mounted fire detection installations.

Construction Benefits

• White housing
• Durable polycarbonate construction
• Compact circular design
• Suitable for professional ceiling installations
• Nickel-plated stainless steel terminals
• Designed for use with compatible detector bases

Product Dimensions

• Diameter: 100mm
• Height: 42mm
• Weight: 105g
• Housing Material: Polycarbonate
• Terminal Material: Nickel-Plated Stainless Steel

The neutral white finish helps the detector blend into many commercial and residential interiors.

Chevron Optical Chamber Design

The Apollo XP95 55000-600APO incorporates a Chevron-type optical chamber.

The chamber houses a horizontal optical bench with an infrared emitter and sensor arranged radially to detect forward-scattered light.

This configuration supports the detector's photoelectric smoke detection function.

Optical Chamber Features

• Chevron chamber design
• Horizontal optical bench
• Infrared light emitter
• Optical sensor
• Forward-scattered light detection
• Designed for smoke particle monitoring

The optical chamber is an important component of the detector's smoke sensing arrangement.

Maintenance and cleaning must be carried out according to Apollo's recommendations.

EN 54-7 Compliance and Recognised Approvals

The Apollo XP95 Optical Smoke Detector conforms to EN 54-7, the European standard covering point-type smoke detectors operating using scattered light, transmitted light or ionisation.

The product information also identifies the following approvals:

• CPR
• KRS
• LPCB

Benefits of Recognised Standards and Approvals

• Suitable for appropriately designed fire detection systems
• Provides recognised product conformity information
• Relevant to commercial fire alarm projects
• Supports selection by fire alarm designers and installers

The installer should confirm the current approval certificates and applicable regulatory requirements for the intended project.

Designed for Professional Fire Alarm Installation

The Apollo XP95 55000-600APO must be installed as part of a compatible addressable fire alarm system.

The detector requires a suitable Apollo-compatible mounting base and appropriate loop connections.

Installation Considerations

• Confirm XP95 protocol compatibility
• Use an approved compatible detector base
• Assign the correct device address
• Follow the manufacturer's installation instructions
• Observe correct loop wiring requirements
• Confirm remote indicator connections where used
• Position the detector according to the fire alarm design
• Commission and test the detector
• Record the device within the fire alarm system documentation

Loop Connection Information

• L2: Positive loop connection
• L1: Negative loop connection
• +R: Remote indicator positive connection
• -R: Remote indicator negative connection
• Loop Polarity: L1 and L2 are polarity insensitive

Important: The terminal arrangement should always be checked against the wiring diagram for the selected detector base.

Fire alarm system installation and commissioning should be undertaken by competent fire alarm professionals in accordance with applicable regulations and standards.

General Product Information

• Brand: Apollo Fire Detectors
• Product Range: XP95
• Manufacturer Part Number: 55000-600APO
• Product Name: XP95 Optical Smoke Detector
• Product Type: Addressable Optical Smoke Detector
• Detector Category: Fire Alarm Smoke Detection
• Detection Technology: Photoelectric Light Scattering
• Suitable Fire Types: Slow-Burning and Smouldering Fires
• System Compatibility: Compatible Apollo XP95 Addressable Fire Alarm Systems
• Colour: White
• Manufacturer Warranty: 10 Years

• Housing Colour: White
• Housing Material: Polycarbonate
• Terminal Material: Nickel-Plated Stainless Steel
• Sensor Configuration: Horizontal Optical Bench
• Optical Components: Infrared Emitter and Sensor
• Sensor Arrangement: Radial
• Detection Method: Forward-Scattered Light
• Chamber Type: Chevron
• Diameter: 100mm
• Height: 42mm
• Weight: 105g

• Detection Principle: Photoelectric Light Scattering
• Primary Fire Detection Application: Slow-Burning and Smouldering Fires
• Nominal Analogue Value: 25
• Analogue Value Negative Tolerance: -7
• Analogue Value Positive Tolerance: +7
• Analogue Value Range: 18–32
• Alarm Level Analogue Value: 55
• Sampling Frequency: Once Per Second
• Effect of Wind Speed: None
• Effect of Atmospheric Pressure: None

• Supply Voltage: 17–28V DC
• Minimum Supply Voltage: 17V DC
• Maximum Supply Voltage: 28V DC
• Protocol Voltage: 5–9V Peak-to-Peak
• Minimum Protocol Voltage: 5V
• Maximum Protocol Voltage: 9V
• Quiescent Current: 340µA
• Power-Up Surge Current: 1mA
• Maximum Power-Up Time: 4 Seconds
• Battery Powered: No
• Communication Protocol: Apollo XP95

Terminal Functions

• L2: Positive Loop Connection
• L1: Negative Loop Connection
• +R: Remote Indicator Positive Connection
• -R: Remote Indicator Negative Connection
• Loop Polarity: L1 and L2 Are Polarity Insensitive
• Terminal Material: Nickel-Plated Stainless Steel

Status Indicators

• Alarm Status Indicator: Red
• Fault Status Indicator: Off

• Minimum Operating Temperature: -20°C
• Maximum Operating Temperature: +60°C
• Operating Temperature Range: -20°C to +60°C
• Minimum Storage Temperature: -30°C
• Maximum Storage Temperature: +80°C
• Storage Temperature Range: -30°C to +80°C
• Minimum Relative Humidity: 0%
• Maximum Relative Humidity: 95%
• Humidity Range: 0–95% RH
• Condensation: Not Permitted
• Icing: Not Permitted
• Wind Speed Effect: None
• Atmospheric Pressure Effect: None

Compliance and Approvals

• Product Standard: EN 54-7
• Approvals: CPR, KRS and LPCB
• Fire Alarm System Installation: Subject to Applicable Standards and Regulations
• UK Fire Alarm Design: Refer to BS 5839 and Relevant Project Requirements

Additional Information

• Manufacturer Part Number: 55000-600APO
• Brand: Apollo Fire Detectors
• Range: XP95
• Product Type: Addressable Optical Smoke Detector
• Product Colour: White
• Product Weight: 105g
• Product Diameter: 100mm
• Product Height: 42mm
• Warranty: 10 Years
• Mounting Base: Required; Inclusion Not Confirmed
• Compatible Control Panel: Required
• Standalone Operation: No

Suitable Applications

The Apollo XP95 55000-600APO Optical Addressable Smoke Detector is suitable for:

• Addressable Fire Alarm Systems
• Commercial Fire Detection
• Escape Routes
• Hotel Bedrooms
• Hotel Corridors
• Office Buildings
• Restaurants
• Retail Premises
• Commercial Properties
• Apartment Buildings
• Communal Residential Areas
• Managed Accommodation
• Public Buildings
• Business Centres
• Medium-Sized Buildings
• Large Buildings
• Fire Alarm System Upgrades
• Compatible XP95 Detector Replacements
• Professional Fire Alarm Installations

Detector selection and positioning must follow the fire risk assessment, system design and applicable fire alarm standards.

Why Choose the Apollo XP95 55000-600APO Optical Smoke Detector?

The Apollo XP95 55000-600APO provides reliable optical smoke detection for compatible addressable fire alarm systems.

Its photoelectric light-scattering technology makes it particularly effective at detecting smoke produced by slow-burning and smouldering fires.

The detector's Chevron optical chamber incorporates an infrared emitter and sensor arranged to detect forward-scattered light from smoke particles.

With an operating temperature range of -20°C to +60°C, the XP95 detector is designed for use across a wide range of suitable building environments.

Its 340µA quiescent current supports efficient operation on compatible addressable detection loops, while the red alarm indicator provides clear visual status information.

The compact 100mm diameter white polycarbonate housing offers a discreet appearance suitable for hotels, offices, restaurants, retail premises and other commercial buildings.

Conforming to EN 54-7 and supported by CPR, KRS and LPCB approvals, the detector provides recognised product conformity for professional fire alarm installations.

Backed by a 10-year manufacturer warranty, the Apollo XP95 Optical Addressable Smoke Detector 55000-600APO is a dependable choice for new fire alarm installations and compatible system upgrades.