Ravel Fire Alarm 8 Zone Control Panel

The Ravel Fire Alarm 8 Zone Control Panel is a sophisticated and versatile fire alarm system designed to provide reliable fire detection and notification in commercial and residential buildings. This article provides a comprehensive overview of the panel's key features, technical specifications, and its overall benefits in safeguarding properties against fire hazards.

Key Features

• Switched Mode Power Supply: The control panel operates using a switched mode power supply, offering efficient and reliable power management.
• Modular Construction: Its modular construction ensures ease of maintenance and upgrades, making it a flexible solution for various fire safety needs.
• Auto Resettable Fuse: The inclusion of auto resettable fuses provides enhanced protection against potential electrical faults, minimizing downtime.
• Surge Protection: All inputs and outputs are equipped with surge protection, safeguarding the panel from electrical spikes.
• Programmable Options: The panel includes programmable settings for AC loss delay, trouble remainder, and alarm verification, allowing for customization based on specific requirements.
• Battery Polarity Reversible Protection: This feature ensures the safe and efficient operation of the system, even in the event of accidental battery reversal.
• Surface Mount Technology: Surface mount technology enhances the panel's reliability and longevity.
• Low Current Consumption: The control panel is designed to consume minimal power, ensuring energy efficiency.
• Compliance with UL-864 and NFPA-72: The panel adheres to strict fire safety standards, ensuring reliability and safety.
• Rugged Construction: Made from CRCA sheet with a powder-coated finish, the panel is durable and resistant to environmental factors.
• Versatile Power Supply: Operating on 110 – 220v, 50/60 Hz AC mains power, the panel is suitable for use in various regions.
• LCD Display: The 16x2 dot matrix LCD display provides clear and concise information for easy monitoring.
• Class B/C Initiating Device Circuits: The panel supports Class B/C initiating device circuits, accepting both smoke detectors and any normally open contact device.
• Configurable Zones: Any zone can be configured as an alarm or supervisory zone, offering customization based on the building's needs.
• Notification Appliance Circuits: The panel includes Class B Style NACs that can be programmed as silenceable or non-silenceable.
• Standby Backup Power: The control panel is equipped with standby (battery) backup 24v DC power supply with a built-in charger, ensuring continued operation during power outages.
• Clear LED Indication: Fire and fault statuses are indicated using unambiguous colored LED lights.
• Visual and Audible Indications: The system provides main, standby status, and battery low visual and audible warnings.
• Form C Relays: The panel includes Form C relays for fire, fault, and supervisory notifications.
• Resettable/Steady D.C. Output: The 24V DC output is resettable or steady, depending on the needs of the system.
• Communication Facility: The optional RS 485 communication facility allows for integration with other systems.
• Lamp Test Facility: This feature ensures that the panel's lights are functioning correctly.
• Power-Limited Field Wiring: Except for the AC and battery inputs, all field wiring circuits are power-limited for safety.
• Supervised Wiring Circuits: All field wiring circuits are supervised to detect and report faults promptly.
• Walk Test Facility: This feature allows for the testing of alarm circuits without triggering actual alarms.
• Zone Isolation: Zone isolation with loop voltage cut-off allows for specific zone testing and maintenance.
• Earth Fault Annunciation: The panel provides earth fault annunciation at 0 ohms, ensuring system integrity.
• AC Low Voltage Cutoff: This function helps prevent potential issues caused by low AC voltage.
• Programmable Alarm Verification and Delay: These options provide further customization to suit different building requirements.

Technical Specifications

• Primary Power: The control panel operates on 120 – 220VAC ± 10%, 50 Hz, with a current rating of 2.5Amps.
• Standby Power: The standby power supply includes two 12V, 12Ah sealed lead-acid batteries, providing reliable backup.
• Circuits for Initiating Devices: Class B Style B/C operation is supported by the panel, which has an alarm current of 15–30mA and a typical operating voltage range of 14–21 VDC.
• Operating Conditions: The panel functions within a temperature range of 0 – 49°C/32-120°F and a relative humidity of 93 ± 2% RH (non-condensing) at 32 ±2°C/90 ±3°F.
• Charging Circuit: The charging circuit operates at a voltage of 28.2V, ±0.5V, with a charging current of 800mA (Max).
• Notification Appliance Circuits: Class B Style – Y wiring, operating at a nominal voltage of 24VDC, with a special application current of 1.2Amps (0.6A per circuit).
• D.C. Output: The panel provides a supervised 24VDC regulated output with a maximum current of 300mA.
• Common Relays: The panel includes three Form C relays, each with a contact rating of 2Amps at 30VDC and 0.5Amps at 125VAC.
• Dimensions and Construction: The panel measures 440W x 340H x 120D and is constructed from 18-gauge CRCA sheet with a powder-coated finish.
• IP Rating: The control panel has an IP50 rating.
• Cable Entry: There are 11xø19mm and 10xø22.25mm knockouts on the top of the cabinet for cable entry.