Lowell RY-4A Classic Relay Module, 5A, 24VDC/250VAC, 4-DPDT Relays, 5-Inch L x 6.25-Inch W X 1.69-Inch D

The Lowell RY-4A Classic Relay Module is a general-purpose control interface designed for switching and automation applications in AV and low-voltage systems. It features four independent double-pole double-throw (DPDT) relays, allowing flexible control of multiple circuits within a compact module.

Built on a steel chassis with integrated mounting holes, the RY-4A supports activation via contact closures or voltage input from 5V to 24V AC or DC. It includes detachable Phoenix-style terminals for easy wiring, a test switch for troubleshooting, and a dedicated power supply for reliable operation.

Key Features

• Four independent DPDT relays: Enables multi-circuit switching and control
• 5A contact rating: Suitable for general-purpose switching applications
• Flexible trigger input: Supports contact closure or 5–24V AC/DC activation
• Integrated test switch: Simplifies troubleshooting and system verification
• Detachable Phoenix-style terminals: Provides convenient wiring and installation
• Steel chassis with mounting holes: Durable construction for panel or enclosure mounting
• Included power supply: 100–250VAC input with 24VDC 500mA output
• Compact module design: Suitable for AV and automation system integration

Technical Specifications

• General
  • Product Type: Relay Module
  • Model: RY-4A
  • Construction: Steel chassis with mounting holes
• Electrical
  • Relay Configuration: 4 × DPDT (Double Pole Double Throw)
  • Contact Rating: 5A
  • Trigger Input: Contact closure or 5–24V AC/DC
  • Power Supply Input: 100–250VAC
  • Power Supply Output: 24VDC 500mA
• Connectivity
  • Terminal Type: Detachable Phoenix-style terminals
• Control
  • Test Function: Manual test switch for troubleshooting
• Physical
  • Dimensions (L × W × D): 5.00" × 6.25" × 1.69"
• Installation & Mounting
  • Mounting: Chassis with mounting holes for panel or enclosure installation

Use Cases

• AV system control and automation
• Signal routing and switching
• Equipment control interfaces
• Low-voltage control systems
• Custom control panels and enclosures

Package Contents

• Lowell RY-4A Relay Module
• Power Supply (100–250VAC to 24VDC 500mA)