TELEFIRE TFVB-500

The TELEFIRE TFVB-500 is a high-power booster amplifier unit specifically designed for TELEFIRE’s emergency voice and evacuation systems (VES) to increase the power of speaker lines. The device provides 400W of output power and features an integrated power supply, battery charger, and a VOX system (automatic activation upon detecting an incoming signal). It supports TELEFIRE-approved 100V speakers and can be used in both zoned and addressable fire detection systems. The TFVB-500 also includes a built-in fault relay, allowing for individual fault reports to be transmitted to the fire alarm control panel, for example, via ADR-805A or ADR-705 input cards. The unit is designed for indoor use.

Key Features:

• Power Output: 400W output power at 100V RMS
• Integrated power supply and battery charger
• VOX system (automatic activation on incoming signal)
• Fault reporting, control, and operation circuits
• Supports TELEFIRE-approved 100V speakers
• Can be used with zoned and addressable fire alarm systems
• Built-in fault relay for fault reporting to the control panel
• Designed for indoor installation
• Self-test function for post-installation checks
• LED indicators for system status monitoring
• Complies with SI 1220 standard

Technical Specifications:

• Dimensions (Width x Height x Depth): 403 x 523 x 172 mm
• Operating Temperature Range: -10°C to +49°C
• Storage Temperature Range: -40°C to +85°C
• Operating Voltage: 220-240 VAC, 50 Hz
• Current Consumption (AC, Standby): 130 mA
• Current Consumption (AC, Full Load): 2.4 A
• Internal Fuse: 3.15A/250 VAC, Slow Blow (5x20mm)
• Batteries: 2 x 12V lead-acid batteries in series (24V total), 16Ah, 18Ah, or 20Ah capacity (maximum battery size: 181mm W x 77mm D x 167mm H)
• Maximal Current Consumption from Batteries (Standby): 490 mA
• Maximal Current Consumption from Batteries (Full Load): 20 A
• Audio Output (Maximal): 400W, 100VRMS
• End of Line Resistor (EOL): 10KΩ, 2W
• Output Frequency Range: 800-2800 Hz

Compatible Systems and Products:

• TELEFIRE TFVX EVAX emergency voice system (with 70V setting)
• TELEFIRE EVS-1300 emergency voice system (with 100V setting)
• TELEFIRE EVS-6400 emergency voice system (with 100V setting)
• TELEFIRE TFVE-300 Proel public address system (with TFVB-AD2 adapter card)
• TELEFIRE ADR-742 speaker switching card (for zoned public address)
• TELEFIRE ADR-805A input module (for fault reporting)
• TELEFIRE ADR-705 input module (for fault reporting)
• TELEFIRE-approved 100V loudspeakers (e.g., BCF and TLS series, full list in product manual)