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Dual Input Relay Board 24V DC DPDT Output Buffered Ness

BRAND: Ness
SKU: POW450
$51.10 List price: $68.10
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Ness 24V DC dual input relay board features a DPDT output and buffered design. Ideal for alarm and security installations.

Alternatively Known As: TacPower RLB1-24DP, 24V DPDT Buffered Relay Board, Dual Input Security Relay Module

Technical Specifications
  • Model: RLB1-24DP
  • Input Voltage: 24V DC nominal, 20–28V DC operating range
  • Current Draw: Approximately 22mA
  • Relay Configuration: Double Pole Double Throw (DPDT)
  • Contact Rating: 1A at 30V DC per pole
  • Trigger Inputs: Negative trigger at 0V or positive trigger from 5–24V DC
  • Output Contacts: Normally open, normally closed and common terminals for each pole
  • Contact Mode: Voltage-free dry contacts by default
  • Common Connection: Jumper-selectable negative, positive or voltage-free common
  • Status Indication: Buffered relay input operation
  • Manufacturing: Designed, manufactured and supported in Australia
  • Dimensions (H x L x W): 20mm x 40mm x 30mm
  • Weight: 0.1 kg
Key Features
  • Dual input operation using positive or negative trigger terminals
  • Solid-state buffered inputs for equipment with limited current sink capability
  • DPDT output for switching two independent circuits
  • Each relay pole supports loads up to 1A at 30V DC
  • Dry-contact outputs suitable for alarm, access control and security applications
  • Jumper-selectable common connection for positive, negative or voltage-free operation
  • Compact PCB-mounted relay module
  • Compatible with 24V DC security and control systems
Professional Installation Requirements
  • Installation should be performed by a qualified security or electrical technician. Confirm the 20–28V DC supply range, observe polarity, protect wiring against short circuits and ensure connected loads do not exceed the 1A at 30V DC contact rating.
Applications
  • Alarm panel interfacing
  • Security system control circuits
  • Access control and door-entry equipment
  • Lift and automation control interfaces
  • Switching low-voltage security or control devices
  • Isolation and signal buffering where the driving equipment has limited current sink capability
Standards & Compliance
  • AS/NZS 3000:2018 — applicable wiring and installation requirements for connected electrical circuits; product-specific standards certification was not stated by the manufacturer
  • AS/NZS 3820 — relevant general essential safety requirements for low-voltage electrical equipment where applicable; product-specific certification was not stated by the manufacturer
Environmental Benefits
  • 24V DC low-voltage operation avoids direct mains switching at the relay board
  • Buffered solid-state inputs can reduce the loading placed on connected alarm and control outputs
  • Compact, durable construction may extend service life and reduce replacement waste
  • Relay contacts support isolated low-voltage control circuits, allowing efficient system interfacing without a dedicated high-power control module
Warranty Information

Ness manufactured or supplied products are covered by a 3-year warranty from the date of purchase unless otherwise specified. Warranty claims are subject to Ness terms and conditions and exclusions for misuse, improper installation, lightning or power-surge damage.

Available Now

Available through Ness Corporation and authorised Australian security and electrical distributors; availability may vary because some TacPower modules are supplied to order.

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