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Macromatic ARP024A2R, 11 Pin Plug-In Alternating Relay, 24V AC/DC, 10A DPDT
Macromatic ARP Series plug-in alternating relay, 11 pin base, 24V AC/DC control voltage, 10A DPDT output, for use with a 11 pin 70170-D octal socket.
Why Choose the Macromatic ARP024A2R Alternating Relay?
The Macromatic ARP024A2R is an 11 pin ARP Series alternating relay with 24V AC/DC control voltage and a 10A DPDT output. It is built for duplex control circuits where two loads need to alternate so run time stays balanced across both loads.
A control switch starts the alternating action, and the relay contacts change state when the initiating switch opens. The ARP024A2R plugs into an 11 pin 70170-D octal socket, keeping replacement and panel service straightforward. The DPDT output provides dual-pole switching for the connected load circuit. Two LED indicators show which load energizes next.
🔁 Alternates Two Loads
Balances run time between two connected loads in duplex control applications
⚡ Relay Output
10A DPDT output for the connected load control circuit
🔌 Plug-In Socket Design
11 Pin relay designed for a 11 pin 70170-D octal socket
💡 LED Load Indication
Shows which load is selected to energize next during operation
⚠️ Confirm Socket, Voltage, and Load Ratings
Before ordering or installing the ARP024A2R, confirm the control voltage, output contact rating, wiring diagram, and compatible socket for the control panel.
This relay is designed for use with a 11 pin 70170-D octal socket. Image is an approximation. Actual part may differ.
📋 How the Alternating Relay Works
The ARP024A2R is used where two loads need to share run time instead of one load doing most of the work.
Start Signal: A control switch starts the alternating action.
Relay Changeover: The output contacts change state when the initiating switch opens.
Load Alternation: The connected loads alternate on each cycle to help balance usage.
Selector Function: The unit also has a low profile selector switch to lock into one load, so only one load remains energized.
Key Features & Benefits
- 11 Pin plug-in design
- Relay function: Alternating Relay
- Control voltage: 24V AC/DC
- Output: 10A DPDT
- Uses a 11 pin 70170-D octal socket
- Designed to alternate two loads and help equalize run time
- The ARP024A2R has 2 LEDs that indicate which load energizes next.
- The unit also has a low profile selector switch to lock into one load, so only one load remains energized.
- Output contacts: 10A @ 240V AC / 30V DC, 1/2 HP @ 120/240V AC (N.O.), 1/3 HP @ 120/240V AC (N.C.), B300, R300 (N.O.) Pilot Duty
- Mechanical life: Mechanical: 10,000,000 Operations, Full Load: 100,000 Operations
- Operating temperature: -28 C to 65 C (-18 F to 149 F)
- Approvals: C UR US, CE, CSA, C UL US (with Socket)
Technical Specifications
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Pin Count
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11 Pin
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Socket
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11 pin 70170-D octal socket
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Relay Function
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Alternating Relay
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Control Voltage
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24V AC/DC
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Output
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10A DPDT
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Voltage Tolerance
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+10/-15% of control voltage at 50/60 Hz
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Load
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<3VA
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Operating Temperature
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-28 C to 65 C (-18 F to 149 F)
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Storage Temperature
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-40 C to 85 C (-40 F to 185 F)
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Output Contacts
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10A @ 240V AC / 30V DC, 1/2 HP @ 120/240V AC (N.O.), 1/3 HP @ 120/240V AC (N.C.), B300, R300 (N.O.) Pilot Duty
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Life
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Mechanical: 10,000,000 Operations, Full Load: 100,000 Operations
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Dimensions
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2.4" Height x 1.7" Width x 3.1" Depth
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Approvals
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C UR US, CE, CSA, C UL US (with Socket)
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📋 Basic Installation Overview
1. Confirm Relay Type: Verify the Alternating Relay function, 24V AC/DC, and 10A DPDT rating match the panel requirements.
2. Match the Socket: Install the relay with the proper 11 pin 70170-D octal socket and confirm terminal wiring before energizing the circuit.
3. Wire the Control Switch: Connect the initiating switch so the relay can change state when the switch opens.
4. Connect the Loads: Wire the two loads according to the relay diagram and confirm the contact rating is not exceeded.
5. Test Alternation: Cycle the control switch and verify the load indication and alternating sequence before putting the equipment into service.
Always follow the Macromatic ARP Series installation manual and applicable electrical codes before operation.
📞 Ordering Notes
Product Code: ARP024A2R
Manufacturer: Macromatic
Series: ARP plug-in alternating relay
Use the product code, socket type, control voltage, and output configuration to confirm the correct relay for replacement or panel build applications.
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