Apollo XP95 Sounder VAD Base
£57.90 (inc VAT: £69.48)
Summary
The Apollo XP95 Sounder Visual Alarm Device (VAD) Base combines a standard mounting base with a loop-powered sounder and visual alarm device, designed to signal fire alarms in enclosed areas. This versatile device can be used either with a detector fitted or with a cap for operation as a standalone alarm device.
Incorporating advanced features such as dual volume ranges, synchronisation capabilities, and unique self-test functions, the XP95 Sounder VAD Base offers flexibility and reliability for modern fire detection systems. The built-in isolator provides enhanced system protection whilst the loop-powered design eliminates the need for external power supplies, simplifying installation and reducing costs.
Compatible with Apollo XP95 and Discovery protocols, this device is certified to EN54-23 for the VAD component and EN54-3 for the sounder element, ensuring compliance with European fire safety standards.
Features
- Two volume ranges 55–75dB(A) and 75–91dB(A)
- EN54-23 compliant category O VAD
- EN54-3 compliant sounder
- VAD flash rate of 0.5Hz
- Unique acoustic self-test
- Unique VAD self-test
- Synchronisation of ‘alert’ and ‘evacuate’ tones
- Complies with NEN2575, DIN0833, and DIN33404
- Individual and group addressing
FAQ
What is the XP95 Sounder VAD Base used for?
The XP95 Sounder VAD Base is used to signal fire alarms in enclosed areas through both audible and visual alerts. It can be fitted with a detector or used as a standalone alarm device with a cap.
Does the device require external power?
No, the XP95 Sounder VAD Base is loop-powered, meaning it operates directly from the fire alarm loop and requires no external power supply. It operates at 17–28V DC.
What are the two volume ranges available?
The device offers two volume ranges: a low range of 55–75dB(A) suitable for areas such as hospital staff stations where a quieter alert is needed, and a high range of 75–91dB(A) for general alarm applications. The high range is EN54-3 certified.
What is the self-test feature?
The XP95 Sounder VAD Base includes unique acoustic and VAD self-test capabilities. When switched on, it tests the sound output and LED flash operation. If no sound is detected within 5 seconds or if the LEDs fail to draw current, a fault signal is transmitted when the device is next polled by the control panel.
Can multiple devices be synchronised?
Yes, the sound and flash outputs of all XP95 Sounder VAD Bases connected to a loop can be synchronised to ensure tone integrity. This prevents tones from different sounders merging into signals that could be mistaken for different alerts.
What is group addressing?
Group addressing allows multiple Sounder VAD Bases to be controlled simultaneously using a common group address (range 112–126). This enables entire areas or groups of rooms to be alerted without delay, whilst individual addressing (1–111) remains available for device-specific control.
Is the device suitable for outdoor use?
No, the XP95 Sounder VAD Base is a Type A device designed for indoor use only, with an IP21C rating.
What certifications does the device hold?
The device is certified to EN54-23 for the visual alarm device (Category O), EN54-3 for the sounder (when used in high volume range), and EN54-17 for the isolating circuit. Specific models also comply with NEN2575, DIN0833, and DIN33404 standards.
Specifications
- Operating Voltage: 17–28V DC
- Protocol Pulses: 5–9V
- Current Consumption Quiescent: 350µA at 24VDC
- Current Consumption Switch-on Surge: 1.2mA for 1 second at 24VDC
- Current Consumption Activated: 14mA at 24VDC
- VAD Frequency: 0.5Hz
- IP Rating: IP21C
- High Tone Setting Volume (45681-705/706): Nominally 75–91dB(A), complies with EN54-3
- Low Tone Setting Volume (45681-705/706): Nominally 55–75dB(A)
- High Tone Setting Volume (45681-707): Nominally 65–85dB(A), complies with EN54-3
- Low Tone Setting Volume (45681-707): Nominally 50–65dB(A)
- Dimensions: 115mm diameter x 38mm height
- Weight: 168g
- Construction Material: Polycarbonate with stainless steel contacts
- Cable Acceptance: Solid or stranded cables up to 2.5mm²
- Individual Addressing Range: 1–111
- Group Addressing Range: 112–126
- Protocol Compatibility: Apollo XP95 and Discovery
- Certifications: EN54-23 (Category O VAD), EN54-3 (Sounder), EN54-17 (Isolator)
- Standards Compliance: NEN2575, DIN0833, DIN33404 (model dependent)
Downloads
- Datasheet (Adobe PDF)

