Kentec Sigma ZXT Extinguishant Control Panel (Large Enclosure)

The Kentec Sigma ZXT is an extinguishant release control panel for a single protected area. It gives the controls and indications needed for an extinguishant release system. Three conventional detection zones provide the alarm signal that starts the release.

This is the large-enclosure model with a 2.6 A power supply (product code K192311XM3). It measures 368 (w) x 434 (h) x 133 (d) mm. The panel is programmed from the front fascia through password-protected user and engineer menus, or with Kentec's Loop Explorer 2 software.

Key features

• Single-area extinguishant control panel with three conventional detection zones; any zone or combination of zones can be set to contribute to release
• Dual extinguishing outputs that can work together or as main and reserve outputs
• Countdown timer showing the time remaining until release; release delay adjustable from 0 to 60 seconds in 5-second steps
• 6 programmable volt-free changeover relays, each assignable to one of fourteen functions such as Alarm, Fault, Hold, Abort or Released
• Secure event log of 1000 events, downloadable over USB with Loop Explorer 2 software
• Dynamic LCD that changes colour with panel status (white normal, red fire/released, yellow fault/disabled/test)
• 4 configurable user passcodes; compatible with I.S. barriers
• Supports up to seven Sigma ZXT four-wire status indicators, and is backward compatible with Sigma Si status units for retrofit
• Approved and certified to EN 12094-1, EN 54-2 and EN 54-4

Technical specifications

• Enclosure: 1.2/1.5 mm mild sheet steel, epoxy powder coated, IP30; fascia RAL 7016
• Dimensions: 368 (w) x 434 (h) x 133 (d) mm
• Mains supply: 230 V AC +10% / -15% (100 W max.)
• Power supply rating: 2.6 A total including battery charge (28 V +/- 1 V); mains fuse T2.0 A 20 mm 250 V AC HRC
• Batteries: two 12 V in series - Yuasa NP7-12 (7 Ah)
• Battery charge voltage: 27.6 V DC nominal, temperature compensated
• Battery charge current: 0.6 A; max. current from batteries: 2 A
• Current draw: 0.11 A mains fail / 0.19 A second stage alarm / 0.21 A post discharge
• Detection circuits: 3 at 21 V DC nominal; max. 32 detectors per zone; EOL 6K8 resistor
• Sounder circuits: 2 x first stage, 1 x second stage, 21 to 28 V DC at 500 mA
• Extinguishant outputs: 1 (or 2 with S2 reconfigured), fused at 1 A continuous / 3 A max. for 50 ms; release duration adjustable 60 to 300 seconds
• Relay contacts: 5 to 30 V DC, 1 A max. each
• Status unit connection: two-wire RS485; AUX 24 V output 21 to 28 V DC at 300 mA (max. two status indicators)
• Cabling: FP200 or equivalent; terminals 0.5 to 2.5 mm²
• Operating temperature: -10°C to +40°C
• Weight: 6 to 7 kg