CONNECTION · TERMINATION

How the connection comes together.
How the cable connects.

The locking method determines how the interfaces mate; the termination method determines how the conductors connect. Understand the action first, then determine the configuration based on contact count, load, and installation conditions.

About termination methods Enter parameter selection

Real-product action clip: shows the lock ring being tightened. The footage does not include the full alignment and insertion process.

THREADED CONNECTION

Tighten to bring the mating fully home.

Tightening is completed by rotating the locking ring. During installation, keep the mating direction, threads, and sealing surface correctly aligned, and lock according to the requirements of the corresponding product.

Verify mating parts and orientation first
Align, then tighten the lock ring
Confirm cable retention and sealing status.

View threaded configurations

From applicability to specific configurations.

The following are the maximum values among currently recorded configurations. Maximum current and maximum pin count may come from different configurations and cannot be combined into the rating of a single model.

Structure / termination	Maximum current per contact	Maximum contact count	Selection
Threaded coupling	50 AM29 · 2-pin · PDF 94	37 contactsM29 · 37 · PDF 98	Select a configuration
Quick-lock / bayonet	20 AM19 · 2-pin · PDF 59	18 pinsM19 · 18 · PDF 59	Select a configuration
Push-lock connection	50 AM29 · 2-pin · PDF 94	24 pinsM25 · 24 · PDF 79	Select a configuration
Solder termination	35 AM25 · 2-pin · PDF 79	37 contactsM29 · 37 · PDF 98	Select a configuration
Screw termination	50 AM29 · 2-pin · PDF 94	37 contactsM29 · 37 · PDF 98	Select a configuration

WIRE TERMINATION

From conductor to contact.

First confirm the terminal structure and allowed wire gauge. After wiring, also verify insulation, cable retention, and interface sealing.

Termination illustration: conductor entering the solder cup. The image does not show soldering iron operation, solder application, or the complete soldering process.

SOLDER TERMINATION

With solder cups aligned, set the position accurately first.

Fitting the conductor into the solder cup is only one step of termination. Verify specific stripping, soldering, and insulation requirements against the selected terminal and process instructions.

View solder configurations

Illustration of screw termination. The image shows a T-shaped box of unconfirmed model; it does not represent an actual L25 unit and cannot be used to determine current or wire gauge.

SCREW TERMINATION

Clamp the conductor, and leave room for installation.

Screw termination requires verifying conductor cross section, end form and tightening requirements. Cable fixing and sealing compression are confirmed separately, so that conductor contacts do not bear external pulling force.

View screw termination configurations

M29 · RATINGS BY CONFIGURATION

Both are M29,
Ratings still need to be read separately.

The heavy-load configuration lists 50 A and 45 A in separate product columns; multi-contact configurations carry their own ratings. Verify contact count, voltage, conductor gauge, and termination method together for each configuration.

The catalog termination column for the 5-contact version lists solder/screw options; this does not confirm screw termination for every order number. Current documentation also provides no evidence of phosphor bronze with nickel/gold plating for this 5-contact configuration.

Configuration range	Catalog ratings	Termination and source
2 / 3 / 4 pins Reload configuration	50 A · 600 V	Screw-clamp wiring PDF 91 · PDF 92 · PDF 93 · PDF 94 · PDF 95
2 / 3 / 4 pins Female-side configurations listed on PDF 96	45 A · 600 V	Screw-clamp wiring PDF 96
5 contacts Multi-pin configurations	20 A · 250 V Conductor ≤ 2.5 mm²	Solder / screw options PDF 97 · PDF 98 · PDF 99

Applicable ratings after mating must be confirmed in combination with both-side configurations; part-number digits cannot be used to back-calculate ratings. AC/DC system and material conditions not specified in the catalog are not inferred; conductor limits do not mean the entire range can be fully loaded.

View the full M29 catalog parameters

Locking, termination, sealing. Confirm each separately.

Locking

Confirm the mating structure, operating direction, and mating/unmating and release clearance.

Termination

Confirm conductor specifications, load per group, and the corresponding termination process.

Sealing

Confirm cable outer diameter, seals, and mating status, then verify the protection conditions.

Videos help explain the actions; confirm specific configurations with the datasheet, drawings and assembly requirements.

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

How the connection comes together.
How the cable connects.

Tighten to bring the mating fully home.

Clearly positioned, directly locked.

Push fully in; the connection locks.

From applicability to specific configurations.

From conductor to contact.

With solder cups aligned, set the position accurately first.

Clamp the conductor, and leave room for installation.

Both are M29,
Ratings still need to be read separately.

Locking, termination, sealing. Confirm each separately.

Locking

Termination

Sealing

Tighten to bring the mating fully home.

Clearly positioned, directly locked.

Push fully in; the connection locks.

From applicability to specific configurations.

From conductor to contact.

With solder cups aligned, set the position accurately first.

Clamp the conductor, and leave room for installation.

Both are M29,Ratings still need to be read separately.

Locking, termination, sealing. Confirm each separately.

Locking

Termination

Sealing

Both are M29,
Ratings still need to be read separately.