LT20 series

Environmental protection Product overview Close-up view Technical specifications Select a configuration

LT20 series · waterproof connector

At home on your panel.
Connected all around.

Flange, mating interface, and tethered cap, clearly together.

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LT20 series · 3-pin flange and dust cap assembly

Structure shown: 3-contact flange and dust cap assembly.

DESIGN, DOWN TO THE CONNECTION

Interface and panel, designed together.

Select the LLT LT20 series around the device interface and cable-end pairing. Verify plug, socket and mounting drawings against the actual model, so the interface form and harness solution align accurately.

LT20 series real product components and mating structure

LT20 original product waterproof theme display; see notes for performance applicability

LLT · Environmental protection

Water stays out.Connected inside.

From the mating interface to the cable entry, each seal does its part. A stable path for power and signal in outdoor equipment.

IP67Applicable per selected configuration

Protection applies only after correct mating, locking, and cable sealing are complete. The imagery is an environmental illustration, not footage of actual testing. Applicable conditions ↗

LT20 series mating interface or locking ring detail

CLOSER TO EVERY DETAIL

Seated,
Right between the panels.

Flange mounting holes, connector body, and tethered dust cap retain a clear assembly relationship. Verify hole pattern, sealing surface, and port protection against the drawing.

Sealing and locking methods apply per specific model.

LT20 series static cover of continuous viewing angles

A CLOSER LOOK

Another angle.
Details, continued.

Scroll to view the product continuously.

LT20 series · 24 continuous viewing angles

LT20 series rear-end structure and true surface detail

MATERIALS THAT MATTER

Solid materials.
From inside out.

Preferred solid phosphor bronze contacts. Virgin engineering plastics, no recycled material. Material, plating, and operating environment are considered together in product requirements.

Applicable gold plating: 2 μin (0.0508 μm). UL Yellow Cards for materials such as PA66-RG301 should be checked by grade and conditions; material recognition is not equivalent to finished-product certification.

Every mounting, clearly seen.

Another angle.
Understand the structure.

Select mounting and contacts first, then take a closer look at the mating face, wiring back end, and catalog dimensional drawings. The appearance of the same structure can be shared; contact count and pin positions are verified independently.

Mounting methodMating structureContactsStructural appearance

STRUCTURE, IN FOCUS

LT20 · LT20 series · 3-pin flange and dust cap assembly

Appearance, mating face and mounting dimensions are verified separately, so every fit is traceable.

Original series image for structural reference; mounting, contacts and the complete part number follow the corresponding product documentation.

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TECHNICAL SPECIFICATIONS

Your configuration. Review each item clearly.

Filter all LT20 configurations

Select a product configuration

Current order number

LT20 series appearance reference — Series appearance reference · 3-pin flange and dust cap assembly
Pin positions and structure are confirmed against the drawing specific to the selected configuration.

THE ESSENTIALS

Key specifications

Beyond contact count and electrical parameters, confirm the locking structure, mounting dimensions, cable range, and cable-end processing. Surface treatment and sealing requirements should be confirmed in the context of the specific configuration and operating environment.

Request samples and drawings

Parameter sources and applicability

Ratings, certifications, and dimensions are confirmed per the selected model. The body dimensions shown do not include device-side mating, cable bend, or tool operating space.

2 pins ·

500 V

20 A

Wire-to-wire

2 pins ·

500 V

20 A

Wire-to-wire

2 pins ·

500 V

20 A

Wire-to-wire

2 pins ·

500 V

20 A

Wire-to-wire

3 pins ·

500 V

20 A

Wire-to-wire

3 pins ·

500 V

20 A

Wire-to-wire

3 pins ·

500 V

20 A

Wire-to-wire

3 pins ·

500 V

20 A

Wire-to-wire

4 contacts ·

500 V

20 A

Wire-to-wire

4 contacts ·

500 V

20 A

Wire-to-wire

4 contacts ·

500 V

20 A

Wire-to-wire

4 contacts ·

500 V

20 A

Wire-to-wire

5 contacts ·

500 V

12 A

Wire-to-wire

5 contacts ·

500 V

12 A

Wire-to-wire

5 contacts ·

500 V

12 A

Wire-to-wire

5 contacts ·

500 V

12 A

Wire-to-wire

6 contacts ·

500 V

12 A

Wire-to-wire

6 contacts ·

500 V

12 A

Wire-to-wire

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PANEL INTEGRATION

The connection.
Into the device.

From panel cutout and sealing surface to port protection, a clear installation boundary for the equipment. Confirm panel thickness and fastening method per specific model.

Explore corresponding application scenarios

LET’S CONNECT

Start with your equipment.

Provide electrical requirements, cable specifications, and installation space;
Determine the right connection solution together.

Contact engineer

Specifications for waterproof connectors and aviation plugs apply per the specific model. Configurations that look similar may differ in ratings, pin positions, and mounting structure.Full technical notes。

IP67 protection rating.IP67 indicates dust protection and short-term immersion protection under specified test conditions. The connector must be properly mated and locked, with seals intact, using cable of the specified outer diameter and completed installation sealing. Protection of unmated ports, the other end of the cable and the device cutout must be handled separately. Ratings and test conditions for specific models are subject to the product specification. Source and applicability Back to content
Rated current and voltage.Rated current is stated per individual contact or designated contact group of the selected configuration; rated voltage is stated per the corresponding insulation structure. Simultaneous energization of multiple contacts, conductor cross section, ambient temperature, and heat dissipation conditions affect temperature rise and allowable current capacity. Selection results are for initial screening only; final selection must be verified against the datasheet and temperature-rise validation under actual operating conditions. Source and applicability Back to content
Hybrid power and signal configuration."3+2" and similar notations indicate the number of contacts in two contact groups. Current, voltage and wiring specifications must be verified separately; the rated currents of the two groups cannot be added together as an overall system rating. Different pin counts and contact-face layouts do not thereby imply intermateability; the viewing direction of the contact face, keying, and male/female contacts must all be confirmed together. Source and applicability Back to content
Wire diameter and seal fit.Enter conductor cross section per contact in mm²; cable outer diameter refers to the jacket outer diameter in mm. The two are not interchangeable. Conductor capacity can be pre-screened against the catalog maximum, but the cable outer diameter must fall within the sealing fit range—do not judge solely by whether the product maximum exceeds the cable diameter. AWG follows the corresponding wire gauge in the catalog. Source and applicability Back to content
Mounting form and face view.Front-mount panel, rear-mount panel, flange, and in-line mating describe the mounting structure; male and female contacts describe the contact form—the two are selected separately. Face views should indicate both the viewing direction and the locating datum; do not infer mating compatibility from left-right mirroring. Panel thickness, cutout, and locking conditions follow the drawing of the corresponding part number. Source and applicability Back to content
Image and demonstration notes.Product images are rendered from 3D data provided by the company; lighting, backgrounds, water droplets, light effects and particles illustrate the application environment and cannot replace test results. Protected structures are shown in desensitized appearance illustrations; none may be used as a basis for manufacturing, measurement, wiring or mating. For engineering documentation, apply to LLT per project. Source and applicability Back to content
Conditions of use.Installation and maintenance should follow product specifications and equipment safety requirements. Connectors not explicitly rated for live mating should be operated only after power-off. Protection performance depends on seal condition, assembly method, cable fit, and the operating environment; custom designs require corresponding sample validation. Source and applicability Back to content
Dust protection boundary.The dust protection requirements of IP6X apply to the verified sealed state. End faces, sealing rings and locking areas should be kept clean to prevent sand and dust from being trapped and affecting mating and sealing. The dust rating does not mean the connector can be used in explosive dust atmospheres. Source and applicability Back to content
UV resistant."UV resistance of 1000 hours or more" is performance information provided by the company; its applicability should correspond to the material grade, color, product version and the corresponding test records. Accelerated aging duration cannot be directly converted into years of outdoor service life; UV light source, irradiance, temperature-humidity cycling and evaluation items follow the corresponding report. Source and applicability Back to content
Salt spray and corrosion resistance."Salt spray of 480 hours or more" is performance information provided by the company for a specific combination of materials and plating. Results apply only to the corresponding plating thickness, specimen condition, test conditions and acceptance criteria, and cannot be directly converted into service life in coastal environments. Appearance corrosion criteria and electrical performance criteria should be confirmed separately. Source and applicability Back to content

At home on your panel.Connected all around.

Interface and panel, designed together.

Water stays out.Connected inside.

Seated, Right between the panels.

Another angle.Details, continued.

Solid materials.From inside out.

Another angle.Understand the structure.

LT20 · LT20 series · 3-pin flange and dust cap assembly

Your configuration. Review each item clearly.

Key specifications

The connection.Into the device.

Start with your equipment.

At home on your panel.
Connected all around.

Seated,
Right between the panels.

Another angle.
Details, continued.

Solid materials.
From inside out.

Another angle.
Understand the structure.

The connection.
Into the device.