Why Choose the Hirschmann GDMZRC21218370 Form A Connector?
The Hirschmann GDMZRC21218370 DIN 43650 Form A connector serves compatible 24V DC solenoid valves with an LED indicator and MOV surge suppression. This combination helps maintenance personnel check voltage presence while providing overvoltage protection for the source and load.
An NBR flat gasket is included with this hardwired 1/2 inch NPT version. The central fixing screw secures the connector, and the right angle housing provides a side cable exit at the valve.
💡 Visible Voltage Check
Check voltage presence locally at the valve connector.
🔧 Field Wiring
Connect the cable directly using the internal terminals.
🛡️ MOV Surge Suppression
Helps protect the source and load against overvoltage.
⚙️ Secure Attachment
The central screw helps keep the connector secured under vibration.
⚠️ Confirm Connector Compatibility
Confirm the Form A interface, 18 mm contact spacing, and two poles plus ground before ordering. Match the 24V DC circuit to the application and check the 1/2" NPT entry against your cable connection. Review the product images for dimensional drawings.
💡 Circuit Function
The 24V DC LED indicates voltage presence at the connector. The MOV provides surge suppression to help protect the source and load against overvoltage. Select the circuit version that matches the connected equipment.
Key Features & Benefits
- Flexible termination options: The combination terminal accepts flexible wire with wire end ferrules or fork and eye cable terminals secured directly under the screw head.
- Conductor protection: The terminal design protects conductors at the screw connection during wiring.
- Vibration resistant retention: Central screw locking helps reduce connection loosening on operating machinery.
- Serviceable field connection: Hardwired construction allows the field cable to be terminated inside the connector during installation or replacement.
⚙️ Typical Applications
Use with compatible hydraulic and pneumatic solenoid valves or electromagnetic actuators. It can also connect compatible pressure sensors and flow indicators when the interface and circuit requirements match.
Technical Specifications
| Brand | Hirschmann |
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| Part Number | GDMZRC21218370 |
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| Connector Standard | DIN 43650 Form A |
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| Connection Style | Hardwired, right angle |
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| Housing Color | Clear |
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| Type of Contact | Screw with conductor protection |
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| Contact Spacing | 18 mm |
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| Number of Poles | 2 Poles + Ground |
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| Housing Dimensions | 34.2 mm H x 45 mm L x 27.5 mm W |
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| Cable Entry | 1/2" NPT (4-11 mm Cable OD) |
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| Maximum Conductor Size | 16 AWG |
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| Fixing Screw | M3 x 37 mm |
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| Gasket | NBR Flat |
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| Operating Temperature | -40°F to +257°F |
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| Approvals | CE, RoHS |
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| Protection Class | IP65 |
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| Circuit Type | 24V DC LED Indicator + MOV Surge Suppression |
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| Ingress Protection Standard | IEC 60529 |
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📋 Cable and Gasket Selection
Check the cable: Confirm an outside diameter of 4 to 11 mm and conductors no larger than 16 AWG.
Match the seal: This version includes an nbr flat gasket. Verify the gasket shape against the mating surface.
Maintain the seal: Correct assembly of the cable entry, gasket, and fixing screw is required for the IP65 connection.
📦 What's Included
• Hirschmann GDMZRC21218370 connector
• NBR Flat gasket
• M3 x 37 mm center screw
