24-Channel Relay Expansion Boards

Shop By Channel
1-Relay Controllers
- 1-Channel Wired
- RS232 Interface
- USB Interface
- Ethernet Interface
- Web Interface
- 1-Channel Wireless
- 802.15.4 Interface
- Bluetooth Interface
- Long Range Wireless
- Wi-Fi Interface
- ZB Mesh Interface
2-Relay Controllers
- 2-Channel Wired
- RS232 Interface
- USB Interface
- Ethernet Interface
- Web Interface
- Fiber Optic Interface
- 2-Channel Wireless
- 802.15.4 Interface
- Bluetooth Interface
- Long Range Wireless
- Wi-Fi Interface
- ZB Mesh Interface
4-Relay Controllers
- 4-Channel Wired
- RS232 Interface
- USB Interface
- Ethernet Interface
- Web Interface
- Fiber Optic Interface
- 4-Channel Wireless
- 802.15.4 Interface
- Bluetooth Interface
- Long Range Wireless
- Wi-Fi Interface
- ZB Mesh Interface
- 4 Channel Expansion
- XR Expansion Boards
8-Relay Controllers
- 8-Channel Wired
- RS232 Interface
- USB Interface
- Ethernet Interface
- Web Interface
- Fiber Optic Interface
- 8-Channel Wireless
- 802.15.4 Interface
- Bluetooth Interface
- Long Range Wireless
- Wi-Fi Interface
- ZB Mesh Interface
- 8 Channel Expansion
- XR Expansion Boards
16-Relay Controllers
- 16-Channel Wired
- RS232 Interface
- USB Interface
- Ethernet Interface
- Web Interface
- Fiber Optic Interface
- 16-Channel Wireless
- 802.15.4 Interface
- Bluetooth Interface
- Long Range Wireless
- Wi-Fi Interface
- ZB Mesh Interface
- 16 Channel Expansion
- XR Expansion Boards
24-Relay Controllers
- 24-Channel Wired
- RS232 Interface
- USB Interface
- Ethernet Interface
- Web Interface
- Fiber Optic Interface
- 24-Channel Wireless
- 802.15.4 Interface
- Bluetooth Interface
- Long Range Wireless
- Wi-Fi Interface
- ZB Mesh Interface
- 24 Channel Expansion
- XR Expansion Boards
32-Relay Controllers
- 32-Channel Wired
- RS232 Interface
- USB Interface
- Ethernet Interface
- Web Interface
- Fiber Optic Interface
- 32-Channel Wireless
- 802.15.4 Interface
- Bluetooth Interface
- Long Range Wireless
- Wi-Fi Interface
- ZB Mesh Interface
- 32 Channel Expansion
- XR Expansion Boards
Shop By Application
Android Relay
Smart Phone & Tablet Control
- Android Relays
- Android WiFi
  WIFI Interface
- Android Bluetooth
  Bluetooth Interface
MirC Relays
Contact Closure Inputs
Control Relays in a Remote Location
- MirC Relays
- 1-Channel
  - 1-Channel Wired
  - Ethernet
  - Wired
  - Wireless
  - Wireless
  - Bluetooth
- 2-Channel
  - 2-Channel Wired
  - Ethernet
  - Wired
  - Wireless
  - Wireless
  - Bluetooth
- 4-Channel
  - 4-Channel Wired
  - Ethernet
  - Wired
  - Wireless
  - Wireless
  - Bluetooth
- 8-Channel
  - 8 Channel Wired
  - Ethernet
  - Wired
  - Wireless
  - Wireless
  - Bluetooth
MirX Relays
Contact Closure Inputs
Control Relays in Both Locations
- MirX Relays
- 1-Channel
- 2-Channel
- 4-Channel
- 8-Channel
MirM Relays
Contact Closure Inputs
Control Relays in Multiple Location
- MirM Wired
- 1-Channel
- 2-Channel
- 4-Channel
- 8-Channel
Sensor Relays
Analog Inputs Trigger Relays
According to Configuration
- Sensor Relays
- 1-Channel
  - 1-Channel Wired
  - USB Reactor
  - Ethernet Reactor
  - Web Reactor
  - Wireless
  - 802.15.4 Reactor
  - Long Range Reactor
  - Wi-Fi Reactor
  - ZB Mesh Reactor
- 2-Channel
  - 2-Channel Wired
  - USB Reactor
  - Ethernet Reactor
  - Web Reactor
  - Wireless
  - 802.15.4 Reactor
  - Long Range Reactor
  - Wi-Fi Reactor
  - ZB Mesh Reactor
- 4-Channel
  - 4-Channel Wired
  - USB Reactor
  - Ethernet Reactor
  - Web Reactor
  - Wireless
  - 802.15.4 Reactor
  - Long Range Reactor
  - Wi-Fi Reactor
  - ZB Mesh Reactor
- 8-Channel
  - 8-Channel Wired
  - USB Reactor
  - Ethernet Reactor
  - Web Reactor
  - Wireless
  - 802.15.4 Reactor
  - Long Range Reactor
  - Wi-Fi Reactor
  - ZB Mesh Reactor
Key Fob Relays
Control/Override Relays with a
Key Fob You Hold in your Hand
- Key Fob Relays
- 1-Channel
  - 1-Channel Wired
  - USB Key Fob
  - Wireless
  - Wireless Key Fob
  - Long Range Key Fob
  - ZB Mesh Key Fob
- 2-Channel
  - 2-Channel Wired
  - USB Key Fob
  - Wireless
  - Wireless Key Fob
  - Long Range Key Fob
  - ZB Mesh Key Fob
- 4-Channel
  - 4-Channel Wired
  - USB Key Fob
  - Wireless
  - Wireless Key Fob
  - Long Range Key Fob
  - ZB Mesh Key Fob
- 8-Channel
  - 8-Channel Wired
  - USB Key Fob
  - Wireless
  - Wireless Key Fob
  - Long Range Key Fob
  - ZB Mesh Key Fob
- Key Fobs
Time Activated Relays
Use Integrated Real Time Clock
To Schedule & Trigger Relays
- Time Relays
- 1-Channel Time Relay
- 2-Channel Time Relay
- 4-Channel Time Relay
- 8-Channel Time Relay
- 16-Channel Time Relay
- 24-Channel Time Relay
- 32-Channel Time Relay
- 48-Channel Time Relay
- 56-Channel Time Relay
- 64-Channel Time Relay
Time Delay Relays
Configurable Time Delay Relay
Set Timers, Rotations & Events
- Time Delay Relays
- 1-Channel Time Delay
  - 1-Channel Wired
  - USB Reactor
  - Ethernet Reactor
  - Web Reactor
  - Wireless
  - 802.15.4 Reactor
  - Long Range Reactor
  - Wi-Fi Reactor
  - ZB Mesh Reactor
- 2-Channel Time Delay
  - 2-Channel Wired
  - USB Reactor
  - Ethernet Reactor
  - Web Reactor
  - Wireless
  - 802.15.4 Reactor
  - Long Range Reactor
  - Wi-Fi Reactor
  - ZB Mesh Reactor
- 4-Channel Time Delay
  - 4-Channel Wired
  - USB Reactor
  - Ethernet Reactor
  - Web Reactor
  - Wireless
  - 802.15.4 Reactor
  - Long Range Reactor
  - Wi-Fi Reactor
  - ZB Mesh Reactor
- 8-Channel Time Delay
  - 8-Channel Wired
  - USB Reactor
  - Ethernet Reactor
  - Web Reactor
  - Wireless
  - 802.15.4 Reactor
  - Long Range Reactor
  - Wi-Fi Reactor
  - ZB Mesh Reactor
Time Delay Key Fob
Configurable Delay Relay
Start Timers with Wireless Key Fob
- Time Key Fob
- 1-Channel Key Fob Delay
- 2-Channel Key Fob Delay
- 4-Channel Key Fob Delay
- 8-Channel Key Fob Delay
- Key Fobs
Contact Closure Boards
Contact Closure Inputs Control Relays
- Contact Closure
- MirC Relays
  Contact Closure Inputs
  Control Relays in a Remote Location
- MirX Relays
  Contact Closure Inputs
  Control Relays in Both Locations
- MirM Relays
  Contact Closure Inputs
  Control Relays in Multiple Locations
  - All Channels
  - 1-Channel
- Scan Series
  Read & control with a Computer
- Reactor Relays
  Sensor Controlled Relays
Shop By Interface
Wired Relay
RS232 Interface
- RS-232 Relays
- 1-Channel
- 2-Channel
- 4-Channel
- 8-Channel
- 16-Channel
- 24-Channel
- 32-Channel
- Solid State Relays
USB Interface
- USB Relays
- 1-Channel
- 2-Channel
- 4-Channel
- 8-Channel
- 16-Channel
- 24-Channel
- 32-Channel
Ethernet Interface
- Ethernet Relays
- 1-Channel
- 2-Channel
- 4-Channel
- 8-Channel
- 16-Channel
- 24-Channel
- 32-Channel
- Solid State Relays
Web Interface
- Web Relays
- 1-Channel
- 2-Channel
- 4-Channel
- 8-Channel
- 16-Channel
- 24-Channel
- 32-Channel
- Solid State Relays
Fiber Optic Interface
- Fiber Optic Relays
- 2-Channel
- 4-Channel
- 8-Channel
- 16-Channel
- 24-Channel
- 32-Channel
- Solid State Relays
Wireless Relay
802.15.4 Interface
- 802.15.4 Relays
- 1-Channel
- 2-Channel
- 4-Channel
- 8-Channel
- 16-Channel
- 24-Channel
- 32-Channel
- Solid State Relays
- 802.15.4 Modems
Bluetooth Interface
- Bluetooth Relays
- 1-Channel
- 2-Channel
- 4-Channel
- 8-Channel
- 16-Channel
- 24-Channel
- 32-Channel
- Solid State Relays
Long Range Wireless
- Long Range Relays
- 1-Channel
- 2-Channel
- 4-Channel
- 8-Channel
- 16-Channel
- 24-Channel
- 32-Channel
- Solid State Relays
Wi-Fi Interface
- Wi-Fi Relays
- 1-Channel
- 2-Channel
- 4-Channel
- 8-Channel
- 16-Channel
- 24-Channel
- 32-Channel
- WiFi Config Kit
Mesh Networking Interface
- Mesh Network Relays
- 1-Channel
- 2-Channel
- 4-Channel
- 8-Channel
- 16-Channel
- 24-Channel
- 32-Channel
- Solid State Relays
- ZB ZigBee Coordinators
Expansion Boards
Expansion Boards
Add Expansion Modules
to ProXR & UXP Boards
- Expansion Relays
- XR Expansion Boards
  - XR Expansion
  - 4 Channel Expansion
  - 8 Channel Expansion
  - 16 Channel Expansion
  - 24 Channel Expansion
  - 32 Channel Expansion
- UXP I/O Expansion Boards
- Ultra Series Expansions
Shop Other
Sensors
Sensors Tested to
Work with NCD Boards
SignalSwitch
Internet Control
Power and Interface
Solid State Relays
- 1-Channel
- 2-Channel
- 4-Channel
- 8-Channel
Additional Products
- Analog to Digital Converters
- Enclosures
- Induction Capacitors
- Keypad Encoders
- Light Dimmers and
  Speed Controllers
- Digital Potentiometers
- Motor Controllers
- Video Switches
- Wireless Controllers
- Recovery Kits
- Firmware Upgrades
Contact Information
Resource Section
Have Questions?
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Written for Specific Boards & Apps
Resource Library
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Software, Manuals, Data Sheets & More
- Induction Suppression
- Articles
- Relay Applications
- Software
- Manuals
- Data Sheets
- Warranty Information
- Contact Information
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Designed and Tested
To Control Relays on This Site
- N Button
- Relay Timer
- Quick Timer
- PTZ Software

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Expansion Interface

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Expansion Interface

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24 - Amp SPDT Relay(s)

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24 - Amp DPDT Relay(s)

Expansion Interface

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