EDI LMH4-11 Heavy-Duty 11-Pin Box Type Vehicle Detector Harness, 4 Ft
The LMH4-11 is not a loop detector module. It is the heavy-duty wiring harness used to connect compatible 11-pin box type vehicle detectors to the gate operator or access-control panel wiring. It is commonly used when installing or replacing EDI LMA-1150, LMA-1250, LMA-100, and LMA-200 style detectors that do not plug directly into a board-mounted socket. The harness gives the technician individual leads for power, loop input, and relay output wiring, with loop input wires twisted together for cleaner detector wiring. It is a practical part to replace when the old harness has loose pin tension, corroded leads, damaged insulation, or unreliable detector connections inside an outdoor operator cabinet.
This product is best selected by matching the exact part number and the job-site wiring, not just by appearance. EDI detector families include low-voltage, high-voltage, low-power, solid-state-output, relay-output, fail-safe, and fail-secure versions. Those details affect how the detector powers up, how it reports a vehicle, and how it behaves when the loop is open, shorted, or out of range.
Compatible With
This item may be used with the following products, systems, or application groups when the original part number, voltage, connector style, and wiring match:
- EDI LMA-1150 and LMA-1250 style 11-pin box type detector applications
- Gate operator control cabinets that use a matching 11-pin Amphenol box type detector connector
- Exit loop, safety loop, shadow loop, and presence loop installations where relay output detector wiring is required
- Commercial parking, access-control, drive-through, and gate operator panels using compatible 11-pin detector wiring
- Replacement work where the original detector label, wiring harness, voltage class, and fail-safe or fail-secure behavior match
- EDI LMA-100 and LMA-200 series detector applications where the 11-pin box type harness is specified
Features & Specifications
| Manufacturer | EDI Traffic / Eberle Design Inc. |
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| Product Type | 11-pin box type vehicle detector connecting harness |
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| Part Number | LMH4-11 |
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| Application | Wiring harness for compatible 11-pin box type loop detector installations |
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| Compatible Operator Type | Gate, parking, drive-through, and access-control systems with matching detector socket or harness |
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| Voltage | Dependent on connected detector and control circuit |
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| Output / Connection | Wiring harness with detector pin leads |
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| Detection Type | Harness for 11-pin detector wiring |
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| Safety Monitoring | Not a photo eye or safety edge. Use only as part of a properly designed vehicle detection system. |
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| Notes | Verify original part number, voltage, connector style, output type, and operator wiring before ordering. |
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Key Features
- 4 ft heavy-duty connecting harness
- 11-pin plug type connector
- Designed for 11-pin box type vehicle detectors
- Loop input wires twisted together
- Wrap-around socket/pin contact design
- Useful for access-control and gate detector cabinet wiring
Also Known As / Related Part Numbers
- LMH4-11
- EDI-LMH4-11
- LMH411
- LMH 4-11
- 11-pin box type detector harness
- 11-pin Amphenol box type harness
- 4 ft detector harness
- LMA-1150 harness
- LMA-1250 harness
- LMA-100 harness
- LMA-200 harness
Technician Note
When replacing a loop detector, do not assume the detector is the only failed part. A damaged loop, wet lead-in splice, poor terminal connection, moving gate steel near the loop, or another nearby loop on a close frequency can create symptoms that look like a bad detector. The best practice is to confirm loop resistance, insulation condition, power voltage, and output wiring before replacing parts.
Before Ordering
- Match the exact part number or approved replacement reference from the original detector label.
- Confirm voltage class before applying power. Low-voltage and high-voltage versions are not interchangeable.
- Confirm connector style, harness type, and pinout before replacing a 10-pin or 11-pin detector.
- Confirm whether the application needs solid-state outputs or relay outputs.
- Confirm fail-safe or fail-secure behavior when the original detector uses an S version.
- Check loop wire, lead-in splices, and frequency separation if the original complaint is intermittent detection or false calls.
- Do not use a loop detector as a substitute for required monitored photo eyes, safety edges, or other entrapment protection devices.
Professional Advisory
Loop detector wiring is often located inside the same cabinet as operator power wiring. If the cabinet has high voltage, damaged wiring, water intrusion, missing safety devices, or unpredictable gate movement, the system should be inspected by a qualified gate technician before replacement parts are installed.
Product Q&A
Is the LMH4-11 a loop detector?
No. The LMH4-11 is the connecting harness for compatible 11-pin box type loop detectors.
Which EDI detectors commonly use the LMH4-11 harness?
It is commonly used with EDI LMA-1150, LMA-1250, LMA-100, and LMA-200 series vehicle detectors where a box type 11-pin harness is required.
How long is the LMH4-11 harness?
The LMH4-11 is commonly listed as a 4 ft harness.
Why replace a detector harness?
Replace it when the connector is loose, contacts are worn, wires are damaged, or corrosion is causing intermittent detector calls.
Can this harness be used with every 11-pin detector?
It may be used with many 11-pin box type detector applications, but pin assignments should always be matched to the detector and control panel wiring.
