RA1x2

The RA1x2 is a relay splitter and alarm annunciator. It splits a single dry contact relay input into two electrically isolated outputs and annunciates the change in state of any dry contact relay signal.

Designed to be simple to use and easy to maintain, the RA1x2’s dual relay outputs activate when an alarm is detected. If the monitored dry contact changes state, the alarm LED illuminates and the audible alarm sounds.

The RA1x2 is often coupled with a SeaHawk spot detector to annunciate the detection of conductive fluids.  This surface mounted product can also annunciate alarms from any equipment or device that provides a normally open, dry contact input, including air conditioners, UPS units, and generators.

When used as a Relay Replicator, the RA1x2 helps users integrate a single alarm into two separate monitoring systems.

Make sure you have the right power supply!

Note: The RA1x2 requires an isolated 24 volt power supply. RLE recommends and stocks PSWA-DC-24, a 24VDC supply that plugs directly into a wall outlet. This supply is available for purchase separately.

Key Features

  • Accepts and annunciates the change of any dry contact signal
  • Provides visual and audible remote alarm annunciation
  • Duplicates and isolates relays
  • Dual summary alarm relay outputs (Form C)
  • Lightweight casing

Power: 24VAC/VDC (±10%) @ 150mA max.; requires power supply: PSWA-DC-24-ST (not included)

Inputs: 1 Dry Contact

Relay Output: 2 Dry Contacts, Form C, 1A @ 24VDC, 0.5A resistive @120VAC

Alarm Notification: Audible Alarm 74DBA @ 1ft (0.3m) – Jumper (JMP1) configurable as active (engaged) or silenced (disengaged)

Front Panel Interface

  • Push Buttons: Reset/Test: 1; Alarm Silence: 1
  • LED Indicators: Power: 1 green (on/off); Alarm/Contact Closed: 1 red

Operating Environment

  • Temperature: 32°F to 122°F (0°C to 50°C)
  • Humidity: 5% to 95% RH, non-condensing
  • Altitude: 15,000ft (4,572m) max.

Storage Environment: -4°F to 158°F (-20°C to 70°C)

Dimensions: 2.7″W x 4.4″H x 1.1″D (69mmW x 112mmH x 28mmD)

Weight: 8 oz. (226.7g)

Mounting: Surface mount

Certifications: CE; ETL listed: conforms to UL 61010-1, EN 61010-1; RoHS compliant

Product Documentation Links

Technical Resources

Technical Notes

Audible Alarm
The audible alarm on the RA1x2 is configurable.  Want to hear the alarm every time?  Open the enclosure and look at JMP1, located on the top left corner of the board.  Make sure the jumper spans (connects) the bottom two pins of JMP1.  This engages the audible alarm.  If you move the jumper to span the bottom two pins and engage the audible alarm, the alarm will beep to indicate the change has been activated.

Prefer not to have an audible alarm?  Align the jumper so it spans the top two pins of JMP1.  This will disengage the audible alarm.

Power Supply
The RA1x2 requires an isolated 24 volt power supply. RLE recommends and stocks PSWA-DC-24, a 24VDC supply that plugs directly into a wall outlet. This supply is available for purchase separately.

Power is supplied to the RA1x2 through a terminal block connection.  If you have a PSWA-DC-24, it may have a barrel connector on the end of the connecting wires. Simply clip the barrel connector off and strip the end of the wires to connect the power supply to the RA1x2.