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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.
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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.

Condition- Used.