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Xtralis VLF-250-00

Xtralis VESDA VLF-250 very early warning aspirating smoke detector, supplied together with an Apollo XP95 three-channel input/output module in a separate enclosure.

The VESDA VLF-250 continuously draws air through a connected sampling pipe network and analyses it using laser-based smoke detection. It is designed for early fire detection in small, business-critical areas of up to 250 m², including server rooms, data centres, control rooms, electrical switch rooms, telecommunications facilities and air-handling installations.

The included Apollo XP95 three-channel input/output unit provides independent monitoring of three input channels and independent control of three relay outputs. It is suitable for integration with compatible Apollo XP95 and Discovery fire alarm systems.

Xtralis VESDA detector
Manufacturer: Xtralis
Product range: VESDA LaserFocus
Model: VLF-250-00
Equipment type: Aspirating smoke detector
Coverage area: up to 250 m²
Supply voltage: 18–30 V DC
Nominal voltage: 24 V DC
Current consumption: approximately 220 mA nominal
Current in alarm: approximately 295 mA
Sensitivity range: 0.001–0.969 dB/m
Maximum sampling pipe arrangement:
1 × 25 m pipe, or
2 × 15 m branches
Maximum number of sampling holes: 12
Protection rating: IP30
Approximate dimensions: 256 × 183 × 92 mm
Approximate weight: 2 kg
Serial number: 88013225
Manufactured: January 2011
Made in: Malaysia
The VLF-250 includes programmable alarm thresholds, ultrasonic airflow sensing, AutoLearn Smoke, AutoLearn Flow, an event log and an integral status display.

Apollo input/output module
Manufacturer: Apollo Fire Detectors
Series: XP95
Model: XP95 3 Channel Input/Output Unit
Number of input channels: 3
Number of relay output channels: 3
Supply voltage: 17–28 V DC
Relay contact rating: 1 A at 30 V AC
Operating temperature: –20°C to +70°C
Protection rating: IP54
Compatible with: Apollo XP95 and Discovery systems
Made in: United Kingdom
Separate enclosure included

Apollo identifies part number 55000-588 as an obsolete legacy product, making this unit particularly suitable as a replacement or spare for existing XP95 installations.
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Condition- Used.