

SKE-450ZN4 | Silent Knight 50W Voice Evacuation System with 4-Zone Splitter
- Regular price
- $4,699.00
- Sale price
- $4,699.00
- Regular price
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Product Description P/N: SKE-450ZN4
Description
The Silent Knight SKE-450ZN4 is a 50-watt voice evacuation system with a built-in digital message repeater, power supply, and supervised microphone. Designed for fire and life safety applications, it provides reliable emergency voice instructions through 4 speaker zones. The SKE-450ZN4 supports both 25V and 70.7V operation and allows field programming or remote message download for maximum flexibility in new or retrofit installations.
Technical Specifications
Condition | New/Never Used Surplus |
Brand | Silent Knight |
Category | Fire Alarm Equipment |
Part Number | SKE-450ZN4 |
Subcategory | Voice Evacuation System |
Output Power | 50 watts total |
Speaker Circuits | 25V or 70.7V RMS, Class A or B |
Zones | 4-zone splitter with All Call function |
Inputs | Two alarm inputs (reverse polarity and supervised dry contact) |
Audio Storage | Three programmable digital messages (up to 45 seconds) |
Microphone | Built-in supervised microphone |
Digital Processing | Integrated DSP for tone generation and control |
Indicators | LEDs for Speaker Trouble, Alarm, Mic Trouble, Ground Fault, Low Battery, Power |
Cabinet Type | Dead-front metal enclosure |
Compliance | UL Listed, CSFM Listed, MEA 429-92-E Vol. XI |
Country of Origin | United States |
Dimensions | 3.46 × 14.50 × 26.42 in |
Weight | 16 lbs |
Information About SKE-450ZN4
The SKE-450ZN4 is part of the Silent Knight SKE-Series Voice Evacuation Systems, engineered for effective and compliant emergency communication. It integrates seamlessly with fire alarm control panels and includes a four-zone splitter that allows Class A or B speaker configurations. The system offers dual alarm inputs, programmable audio playback, and a supervised microphone for paging and configuration. With built-in digital signal processing and tone generation, the SKE-450ZN4 ensures clear, consistent audio performance in commercial and institutional facilities.
Key Features:
- 50-Watt Output Power: Supports 25V or 70.7V speaker circuits for a range of installations.
- 4-Zone Splitter: Divides the amplifier output into four supervised Class A or B zones with All Call capability.
- Digital Message Repeater: Stores and replays pre-recorded or field-programmable evacuation messages.
- Supervised Microphone: Enables paging and local message recording directly through the control panel.
- Dual Alarm Inputs: Triggered via reverse polarity or supervised dry contact for flexible activation options.
- Programmable Audio: Messages can be updated via line input, onboard mic, or downloaded through the internet.
- Visual Indicators: Includes LEDs for speaker trouble, alarm, microphone trouble, low battery, and ground fault.
- Rugged Metal Cabinet: Dead-front design prevents tampering and protects internal electronics.
The SKE-450ZN4 delivers the reliability and precision required for clear, coordinated voice evacuation in life safety and fire alarm systems.
Description
The Silent Knight SKE-450ZN4 is a 50-watt voice evacuation system with a built-in digital message repeater, power supply, and supervised microphone. Designed for fire and life safety applications, it provides reliable emergency voice instructions through 4 speaker zones. The SKE-450ZN4 supports both 25V and 70.7V operation and allows field programming or remote message download for maximum flexibility in new or retrofit installations.
Technical Specifications
Condition | New/Never Used Surplus |
Brand | Silent Knight |
Category | Fire Alarm Equipment |
Part Number | SKE-450ZN4 |
Subcategory | Voice Evacuation System |
Output Power | 50 watts total |
Speaker Circuits | 25V or 70.7V RMS, Class A or B |
Zones | 4-zone splitter with All Call function |
Inputs | Two alarm inputs (reverse polarity and supervised dry contact) |
Audio Storage | Three programmable digital messages (up to 45 seconds) |
Microphone | Built-in supervised microphone |
Digital Processing | Integrated DSP for tone generation and control |
Indicators | LEDs for Speaker Trouble, Alarm, Mic Trouble, Ground Fault, Low Battery, Power |
Cabinet Type | Dead-front metal enclosure |
Compliance | UL Listed, CSFM Listed, MEA 429-92-E Vol. XI |
Country of Origin | United States |
Dimensions | 3.46 × 14.50 × 26.42 in |
Weight | 16 lbs |
Information About SKE-450ZN4
The SKE-450ZN4 is part of the Silent Knight SKE-Series Voice Evacuation Systems, engineered for effective and compliant emergency communication. It integrates seamlessly with fire alarm control panels and includes a four-zone splitter that allows Class A or B speaker configurations. The system offers dual alarm inputs, programmable audio playback, and a supervised microphone for paging and configuration. With built-in digital signal processing and tone generation, the SKE-450ZN4 ensures clear, consistent audio performance in commercial and institutional facilities.
Key Features:
- 50-Watt Output Power: Supports 25V or 70.7V speaker circuits for a range of installations.
- 4-Zone Splitter: Divides the amplifier output into four supervised Class A or B zones with All Call capability.
- Digital Message Repeater: Stores and replays pre-recorded or field-programmable evacuation messages.
- Supervised Microphone: Enables paging and local message recording directly through the control panel.
- Dual Alarm Inputs: Triggered via reverse polarity or supervised dry contact for flexible activation options.
- Programmable Audio: Messages can be updated via line input, onboard mic, or downloaded through the internet.
- Visual Indicators: Includes LEDs for speaker trouble, alarm, microphone trouble, low battery, and ground fault.
- Rugged Metal Cabinet: Dead-front design prevents tampering and protects internal electronics.
The SKE-450ZN4 delivers the reliability and precision required for clear, coordinated voice evacuation in life safety and fire alarm systems.
