Kentec Sigma ZXT Extinguishant Control Panel (Standard Enclosure)

The Kentec Sigma ZXT is a single area extinguishant control panel, supplied here in the standard enclosure with a 2.6A power supply (part K192311XM2). Three conventional detection zones provide the alarm stimulus for extinguishant release, and any single zone or combination of zones can be configured to contribute to release. It is approved and certified to EN12094-1, EN54-2 and EN54-4, and is fully backward compatible with existing Sigma SI status units and ancillaries.

Key features

• Single area extinguishing panel with 3 conventional detection zones
• Dual extinguishing outputs, used together as common outputs or configured as main and reserve for two sets of cylinders
• Countdown timer shows the time remaining until release
• 6 programmable volt-free changeover relays, each with one of 14 functions (such as alarm, fault, hold, abort and released)
• Dynamic LCD display that changes colour with panel status
• Secure event log of 1000 events, downloadable over USB
• Fully programmable from the front fascia, with 4 configurable user passcodes
• Supports up to seven Sigma ZXT four-wire status indicators (also compatible with Sigma SI status units for retrofit)
• Compatible with I.S. barriers and with Loop Explorer 2 configuration software

Technical specifications

• Mains supply: 230V AC +10%/-15% (100W max); mains fuse T2.0A 20mm 250V AC HRC
• Power supply rating: 2.6A total including battery charge (28V ±1V)
• Batteries: two 12V 7Ah (Yuasa NP7-12) in series; charge voltage 27.6V DC nominal (temperature compensated); charge current 0.6A
• Current draw in mains fail: 0.11A; second stage alarm: 0.19A; post discharge: 0.21A
• Detection circuits: 3; up to 32 detectors per zone (dependent on current consumption); detection EOL 6K8
• Sounder circuits: 2 x first stage, 1 x second stage; 21 to 28V DC, fused at 500mA
• Extinguishant outputs: 1 (or 2 with S2 sounder output reconfigured); fused at 1A continuous or 3A max for 50ms
• Extinguishant release delay: adjustable 0 to 60 seconds in 5 second steps; release duration adjustable 60 to 300 seconds
• Relay contacts (fault, fire, released, mode, hold, abort): 5 to 30V DC 1A max
• Status unit/ancillary connection: two-wire RS485; AUX 24V output 21 to 28V DC @ 300mA (powers up to two status indicators)
• Terminal capacity: 0.5mm² to 2.5mm²
• Dimensions: 368 (w) x 324 (h) x 100 (d) mm
• Construction: 1.2mm/1.5mm mild sheet steel, epoxy powder coated, BS 00 A 05 lid and box, RAL 7016 fascia
• IP rating: IP30
• Operating temperature: -10°C to +40°C