Miller Edge AW14K500-18C 18 ft Air-Wave Switch Kit with Coil Cord Technical Details
The Miller Edge AW14K500-18C is a 18 ft Air-Wave safety edge switch kit built around the AW14 air-pressure switch and RAH-500 gum rubber hose. In an Air-Wave system, pressure in the hose moves air to the switch diaphragm, converting that pressure pulse into an electrical contact for the operator control board. This style is commonly selected for wet, refrigerated, high-vibration, or cold-climate commercial door and gate applications where an air-pressure edge system is preferred over a standard electric edge. Correct fitment depends on the edge type, hose length, contact configuration, and whether the operator still allows a non-monitored edge input.
Compatibility and Application Notes
- Compatible with Miller Edge Air-Wave configured sensing edges and Air-Wave configured treadles when the edge system is built around air pressure tubing rather than a monitored electric sensing edge.
- May be used with select commercial door operators and automated gate operators that accept a non-monitored 2-wire reversing edge / safety edge dry-contact input, when the operator manual allows this type of input.
- Commonly associated with AW14 Air-Wave switch kits using RAH-500 1/2 in. gum rubber hose and related P-50 / P-50H end plug style components.
- Related wired kit family includes AW14K500-12, AW14K500-12C, AW14K500-18, AW14K500-18C, AW14K500-24, and AW14K500-24C. Match hose length and coil-cord requirement to the door or gate installation.
- The C suffix indicates a kit supplied with a 12 ft coil cord. Use this version when the installation needs a flexible electrical connection between a moving edge/switch assembly and the fixed control wiring.
- Not a monitored electric sensing edge interface. Do not use this kit to bypass a monitored UL325 safety input or to replace a monitored edge module without confirming the operator requirements.
- Not the same product family as PS20 pneumatic switch kits or AW14-RF wireless Air-Wave kits. Similar hoses and fittings may be used, but the switch type and system layout must match.
Features and Specifications
| Manufacturer | Miller Edge |
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| Product Type | Air-Wave switch kit |
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| Part Number | AW14K500-18C |
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| Application | Non-monitored air-pressure sensing edge or treadle system |
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| Switch Family | AW14 Air-Wave |
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| Detection Technology | Pneumatic air pressure wave |
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| Hose Length | 18 ft x 1/2 in. gum rubber hose |
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| Coil Cord | 12 ft coil cord included |
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| Electrical Output | N.O. / N.C. contacts; commonly wired as a 2-wire N.O. dry-contact edge input when the operator supports it |
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| Maximum Contact Load | 0.5 amps at 220 volts AC; 1 amp at 48 volts DC |
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| Maximum Edge Length | 60 ft. for the Air-Wave switch family |
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| Adjustable Sensitivity | 0.078 to 19.7 in. water column |
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| Operating Temperature | -49 deg F to 180 deg F |
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| Terminal Style | 0.187 in. quick-connect tabs |
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| Included Components | AW14 switch with silicone hose, gum rubber air hose, end plugs, wire nuts, barbed connector, and mounting screws; coil-cord versions include a 12 ft coil cord |
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| Notes | Use only where a non-monitored Air-Wave system is appropriate for the operator and installation |
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Also Known As / Related Part Numbers
Technician Note
Match this kit by Air-Wave system type first, then by hose length and coil-cord requirement. The AW14 Air-Wave kit is not automatically interchangeable with PS20 pneumatic switch kits, monitored electric edges, or wireless AW14-RF kits even though some installations may use similar hose or fittings.
Before Ordering Checklist
- Confirm the existing system is an Air-Wave pressure hose system, not a monitored electric sensing edge.
- Match the hose length to the door, gate, treadle, or edge run: 12 ft, 18 ft, or 24 ft depending on the kit.
- Choose the C version only when a 12 ft coil cord is needed for the moving application.
- Verify whether the operator input expects N.O. or N.C. contact behavior before wiring the switch.
- Check the operator manual for current UL325 monitored-safety requirements before replacing any safety device.
Professional Advisory
Safety edge devices are part of the obstruction protection system. Do not remove, jumper, or bypass a required safety input. If the operator requires monitored safety devices or the wiring condition is uncertain, have the door or gate checked by a qualified technician before returning it to service.
Product Questions and Answers
What does the Miller Edge AW14K500-18C kit include?
This 18 ft Air-Wave kit includes the AW14 switch assembly, 1/2 in. gum rubber hose, end plugs, wire nuts, a barbed connector, and mounting screws. This C version also includes a 12 ft coil cord.
Is AW14K500-18C for a monitored safety edge input?
No. This is a non-monitored Air-Wave pressure switch kit. It should only be used where the operator supports this style of non-monitored safety edge input.
Can AW14K500-18C be used on gates as well as commercial doors?
It may be used on select automated gates and commercial doors when the installation uses an Air-Wave configured sensing edge or treadle and the operator accepts the contact output. Always verify the operator manual and safety requirements.
What is the difference between AW14K500-18C and the C version?
The C suffix identifies the coil-cord version. Coil-cord kits include a 12 ft coil cord for installations that need a flexible moving connection; non-C kits do not include that cord.
Can this replace a PS20K500 pneumatic kit?
Do not assume that. AW14K500 kits and PS20K500 kits are different pneumatic pressure switch families. Match the original switch type, hose layout, contact configuration, and operator requirements before replacing parts.
