5820XL | Silent Knight Addressable Fire Alarm Control Panel with Digital Communicator
5820XL | Silent Knight Addressable Fire Alarm Control Panel with Digital Communicator
5820XL | Silent Knight Addressable Fire Alarm Control Panel with Digital Communicator
5820XL | Silent Knight Addressable Fire Alarm Control Panel with Digital Communicator
5820XL | Silent Knight Addressable Fire Alarm Control Panel with Digital Communicator
5820XL | Silent Knight Addressable Fire Alarm Control Panel with Digital Communicator
5820XL | Silent Knight Addressable Fire Alarm Control Panel with Digital Communicator
5820XL | Silent Knight Addressable Fire Alarm Control Panel with Digital Communicator
5820XL | Silent Knight Addressable Fire Alarm Control Panel with Digital Communicator
5820XL | Silent Knight Addressable Fire Alarm Control Panel with Digital Communicator
5820XL | Silent Knight Addressable Fire Alarm Control Panel with Digital Communicator
5820XL | Silent Knight Addressable Fire Alarm Control Panel with Digital Communicator
    5820XL | Silent Knight Addressable Fire Alarm Control Panel with Digital Communicator
    5820XL | Silent Knight Addressable Fire Alarm Control Panel with Digital Communicator
    5820XL | Silent Knight Addressable Fire Alarm Control Panel with Digital Communicator
    5820XL | Silent Knight Addressable Fire Alarm Control Panel with Digital Communicator
5820XL | Silent Knight Addressable Fire Alarm Control Panel with Digital Communicator
5820XL | Silent Knight Addressable Fire Alarm Control Panel with Digital Communicator
5820XL | Silent Knight Addressable Fire Alarm Control Panel with Digital Communicator
5820XL | Silent Knight Addressable Fire Alarm Control Panel with Digital Communicator

5820XL | Silent Knight Addressable Fire Alarm Control Panel with Digital Communicator

Part #: 5820XL Manufactured by: Silent Knight
Regular price
$1,644.00
Sale price
$1,644.00
Regular price
1 in Stock
Condition: New-Surplus Original Box
Shipping calculated at checkout.
Product Overview
The 5820XL is a powerful and scalable fire alarm control panel that integrates addressable technology, modular expansion, ...  Read more
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warranty
IQElectro 2-Year Warranty
Warranty for Product #: 5820XL
IQElectro offers a free 2-year warranty on all products. You can trust that every purchase is a reliable investment in the future of your company. Warranty Terms
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IQElectro is Not an authorized distributor for Silent Knight
Original Manufacturer's Warranty Not Covered, This Product is SURPLUS.

Product Description P/N: 5820XL

Description / Specifications

Description 

The Silent Knight 5820XL is an intelligent addressable fire alarm control panel designed to provide reliable detection and reporting across large facilities. It supports both SK and SD protocol devices, integrates a built-in digital communicator, and features distributed intelligent power with modular expansion capabilities.

 

 

Technical Specifications 

Condition New/Never Used Surplus
Brand Silent Knight
Category Fire Alarm Systems
Part Number 5820XL
Subcategory Fire Alarm Control Panels
Primary AC 120 Vrms 50/60 Hz, 2.5A or 240 Vrms 50/60 Hz, 1.4A
Operating Voltage 27.4 VDC system power
Total Accessory Load 6A @ 27.4 VDC, power-limited
Flexput Circuits Six programmable circuits: notification (3A @ 27.4 VDC), auxiliary (3A @ 27.4 VDC), or initiation (100 mA @ 27.4 VDC)
Standby Current 215 mA
Alarm Current 385 mA
Notification Power 3A per circuit @ 27.4 VDC
Relays One Form C trouble relay, two Form C programmable relays (2.5A @ 27.4 VDC each)
Battery Charging Capacity 7.0–35 AH
Battery Size in Panel Up to 18 AH (larger batteries require external cabinet)
Device Support (SK Protocol) 99 detectors, 99 modules (expandable to 396 each)
Device Support (SD Protocol) 127 devices (expandable to 508)
Communication Interfaces Built-in digital communicator, RS-232, USB, RS-485 bus
Output Cadences 13 pre-programmed including ANSI 3.41
Annunciator Display 80-character LCD with tactile keypad
Mounting Options Surface or flush mount
Enclosure Color Red
Flush Mount Dimensions 14.5" W x 24.75" H x 3.9" D (36.8 x 62.9 x 9.8 cm)
Overall Dimensions 16.2" W x 26.4" H x 4.2" D (40.6 x 67 x 11.8 cm)
Weight 28 lbs (12.8 kg)

 

Information About 5820XL

The 5820XL is part of Silent Knight’s IntelliKnight® series, offering intelligent addressable fire detection with modular expandability and powerful communication features. It supports up to 396 SK detectors and 396 SK modules or 508 SD devices, giving system designers flexibility for both small and large projects. Equipped with Flexput™ circuits, the 5820XL allows each circuit to be programmed as notification, auxiliary power, or initiation, reducing installation complexity and increasing design versatility. A built-in UL-listed digital communicator provides dual-line reporting to remote monitoring centers, while integrated drift compensation, maintenance alerts, and programmable cadences enhance detection reliability and alarm management.

Key Features:

  • High Device Capacity: Supports up to 396 SK devices or 508 SD devices depending on protocol.
  • Flexible Flexput™ Circuits: Six programmable circuits configurable as notification, auxiliary power, or initiation.
  • Integrated Digital Communicator: Dual-line communicator supervises two phone lines with advanced reporting functions.
  • Built-in Annunciator: 80-character LCD display with large keypad provides user-friendly operation and programming.
  • Advanced Detection Technology: Features drift compensation, maintenance alert, and nuisance alarm reduction.
  • Modular Expandability: Compatible with accessories such as 5860 annunciator, 5815XL SLC expander, and 5895XL power module.
  • Programmable Outputs: Offers 13 pre-programmed cadences including ANSI 3.41 and four programmable outputs.
  • Relay Support: Includes one Form C trouble relay and two programmable relays rated for auxiliary device control.
  • System Synchronization: Supports synchronization with AMSECO®, Gentex®, Faraday, System Sensor®, and Wheelock® devices.

The 5820XL delivers the reliability and precision required for comprehensive fire detection, large-scale system integration, and NFPA-compliant monitoring.

IQElectro is not an authorized distributor.
IQElectro LLC (IQElectro) is NOT an Authorized Distributor or in any way affiliated with Rockwell Automation, Siemens, or any other Manufacturers. IQElectro is NOT an Authorized Dealer of this product. The product may be of older version, date codes, or design than that available from authorized dealers. As IQElectro is not an authorized dealer of this product, the Original Manufacturer's Warranty and Support DO NOT apply. IQElectro sells SURPLUS only and DOES NOT SELL SOFTWARE or FIRMWARE licenses For more detailed information, please refer to the full version of our disclaimer policy Disclaimer Policy.
Description / Specifications

Description 

The Silent Knight 5820XL is an intelligent addressable fire alarm control panel designed to provide reliable detection and reporting across large facilities. It supports both SK and SD protocol devices, integrates a built-in digital communicator, and features distributed intelligent power with modular expansion capabilities.

 

 

Technical Specifications 

Condition New/Never Used Surplus
Brand Silent Knight
Category Fire Alarm Systems
Part Number 5820XL
Subcategory Fire Alarm Control Panels
Primary AC 120 Vrms 50/60 Hz, 2.5A or 240 Vrms 50/60 Hz, 1.4A
Operating Voltage 27.4 VDC system power
Total Accessory Load 6A @ 27.4 VDC, power-limited
Flexput Circuits Six programmable circuits: notification (3A @ 27.4 VDC), auxiliary (3A @ 27.4 VDC), or initiation (100 mA @ 27.4 VDC)
Standby Current 215 mA
Alarm Current 385 mA
Notification Power 3A per circuit @ 27.4 VDC
Relays One Form C trouble relay, two Form C programmable relays (2.5A @ 27.4 VDC each)
Battery Charging Capacity 7.0–35 AH
Battery Size in Panel Up to 18 AH (larger batteries require external cabinet)
Device Support (SK Protocol) 99 detectors, 99 modules (expandable to 396 each)
Device Support (SD Protocol) 127 devices (expandable to 508)
Communication Interfaces Built-in digital communicator, RS-232, USB, RS-485 bus
Output Cadences 13 pre-programmed including ANSI 3.41
Annunciator Display 80-character LCD with tactile keypad
Mounting Options Surface or flush mount
Enclosure Color Red
Flush Mount Dimensions 14.5" W x 24.75" H x 3.9" D (36.8 x 62.9 x 9.8 cm)
Overall Dimensions 16.2" W x 26.4" H x 4.2" D (40.6 x 67 x 11.8 cm)
Weight 28 lbs (12.8 kg)

 

Information About 5820XL

The 5820XL is part of Silent Knight’s IntelliKnight® series, offering intelligent addressable fire detection with modular expandability and powerful communication features. It supports up to 396 SK detectors and 396 SK modules or 508 SD devices, giving system designers flexibility for both small and large projects. Equipped with Flexput™ circuits, the 5820XL allows each circuit to be programmed as notification, auxiliary power, or initiation, reducing installation complexity and increasing design versatility. A built-in UL-listed digital communicator provides dual-line reporting to remote monitoring centers, while integrated drift compensation, maintenance alerts, and programmable cadences enhance detection reliability and alarm management.

Key Features:

  • High Device Capacity: Supports up to 396 SK devices or 508 SD devices depending on protocol.
  • Flexible Flexput™ Circuits: Six programmable circuits configurable as notification, auxiliary power, or initiation.
  • Integrated Digital Communicator: Dual-line communicator supervises two phone lines with advanced reporting functions.
  • Built-in Annunciator: 80-character LCD display with large keypad provides user-friendly operation and programming.
  • Advanced Detection Technology: Features drift compensation, maintenance alert, and nuisance alarm reduction.
  • Modular Expandability: Compatible with accessories such as 5860 annunciator, 5815XL SLC expander, and 5895XL power module.
  • Programmable Outputs: Offers 13 pre-programmed cadences including ANSI 3.41 and four programmable outputs.
  • Relay Support: Includes one Form C trouble relay and two programmable relays rated for auxiliary device control.
  • System Synchronization: Supports synchronization with AMSECO®, Gentex®, Faraday, System Sensor®, and Wheelock® devices.

The 5820XL delivers the reliability and precision required for comprehensive fire detection, large-scale system integration, and NFPA-compliant monitoring.

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