Power and data, each on its own path.
The main circuit carries energy; the control circuit manages status. Separate battery, communication and auxiliary loads first, then decide on interfaces and harnesses.
BMS and EMS signals
Connection status, commands, and auxiliary power. Write the purpose of each line into the wiring sequence; do not judge by plug appearance alone.
Ports and wire sequence remain in one-to-one correspondence; main circuits and control lines are identified in separate zones.
Confirm these items first.
- CAN, RS-485, or another protocol?
- Is auxiliary power carried on the same line? What are its voltage and current?
- What are the isolation, shielding, termination resistor, and cable length requirements?
Based on a reference energy storage architecture; no compatibility with existing interfaces of Tesla or other complete systems is claimed. Low signal levels do not imply low insulation rating requirements for the harness.
| Part no. / structure | Contact count | Rated voltage | Rated current / contact | Mounting method | Conductor cross section / cable outer diameter | Protection / basis |
|---|---|---|---|---|---|---|
| LLT-M12-05008F1051 Threaded · soldered wire | 8 contacts | 60 V | 5 A | Wire-to-wire | ≤ 0.2 mm² Cable Ø 3.5–6.1 mm | Not listed Catalog p. 20 |
| LLT-M16-05008F1031 Push-lock · solder | 8 contacts | 110 V | 5 A | Wire-to-wire | ≤ 0.3 mm² Cable Ø 3.5–8.5 mm | IP67 Catalog p. 40 |
| LLT-M19-05008F1031 Push-lock · solder | 8 contacts | 100 V | 5 A | Wire-to-wire | ≤ 0.5 mm² Cable Ø 6–10 mm | IP67 Catalog p. 59 |
Ratings are listed per the corresponding catalog configuration; unstated AC/DC system, wiring order, and protocol require confirmation. The "≤" conductor value is the published upper limit, and the cable outer diameter must fall within the sealing accommodation range.
Equipment communication port
Route the network interface inside the cabinet to the right position. The waterproof housing, network module and cable need to be checked as one set.
Keep mating clearance and dust caps; verify shielding continuity according to the link scheme.
Confirm these items first.
- What are the required data rate, cable category and shielding method?
- Is there PoE power? What are the specific class and temperature-rise requirements?
- Panel feed-through or cable-to-cable connection?
A waterproof housing alone does not establish link speed, PoE class, or protocol compatibility. Where the catalog does not state voltage/current, leave the value blank and request the full network component specifications.
| Part no. / structure | Contact count | Rated voltage | Rated current / contact | Mounting method | Conductor cross section / cable outer diameter | Protection / basis |
|---|---|---|---|---|---|---|
| LLT-M19-151501 Threaded · with cable | 8 contacts | V not listed | A not listed | Front-mount panel with cable | Not listed Cable Ø not listed | IP67 Catalog p. 52 |
Ratings are listed per the corresponding catalog configuration; unstated AC/DC system, wiring order, and protocol require confirmation. The "≤" conductor value is the published upper limit, and the cable outer diameter must fall within the sealing accommodation range.
Auxiliary loads and accessories outside the cabinet
Fan, indicator, or external accessories each define their own power and control. Select contact positions and cable exit based on the actual load.
The interface is placed with the maintenance unit, so removal does not disturb other branches.
Confirm these items first.
- What are the accessory load, starting current, and power supply type?
- Is the interface outdoors or in a condensation-prone position?
- What about mounting space, cable bend allowance, and maintenance frequency?
This connection point is a suggestion for new equipment integration and does not mean every home energy-storage unit includes these accessories. Auxiliary-load models must not be used directly for the battery main circuit.
| Part no. / structure | Contact count | Rated voltage | Rated current / contact | Mounting method | Conductor cross section / cable outer diameter | Protection / basis |
|---|---|---|---|---|---|---|
| LLT-M16-15002F1031 Push-lock · solder | 2 pins | 250 V | 15 A | Wire-to-wire | ≤ 1.5 mm² Cable Ø 3.5–8.5 mm | IP67 Catalog p. 40 |
| LLT-M19-20002F1031 Push-lock · solder | 2 pins | 250 V | 20 A | Wire-to-wire | ≤ 2.5 mm² Cable Ø 6–10 mm | IP67 Catalog p. 59 |
| LLT-M25-35206F1031 Push-lock · solder | 2+6 pins | power：300 V signal：100 V | power：20 A signal：5 A | Wire-to-wire | ≤ 2.5 mm² ≤ 0.3 mm² Cable Ø 3.5–13 mm | IP67 Catalog p. 79 |
Ratings are listed per the corresponding catalog configuration; unstated AC/DC system, wiring order, and protocol require confirmation. The "≤" conductor value is the published upper limit, and the cable outer diameter must fall within the sealing accommodation range.
Battery main circuit
Start with system voltage, continuous current carrying and contact protection. Battery interfaces need independent structural and verification basis.
Maintenance sequence, insulation protection and power-off procedure are defined by the system design.
Confirm these items first.
- What are the maximum DC voltage, charge/discharge current, and short-time peak?
- Are finger protection, reverse-mating prevention, interlock, or pre-charge contacts required?
- What are the cable, crimping, temperature-rise and system certification requirements?
The rated current of this catalog entry is not aligned per SKU; part number 120 is not automatically written as 120 A. Dedicated extension harnesses follow the original system requirements and are not replaced with circular auxiliary connectors.
| Part no. / structure | Contact count | Rated voltage | Rated current / contact | Mounting method | Conductor cross section / cable outer diameter | Protection / basis |
|---|---|---|---|---|---|---|
| LLT-LPEVH6-120X-M6 Push-lock · see catalog for wiring | 1 pin | 1500 V | A not listed | Panel socket | Not listed Cable Ø 8–12 mm | IP67 Catalog p. 123 |
Ratings are listed per the corresponding catalog configuration; unstated AC/DC system, wiring order, and protocol require confirmation. The "≤" conductor value is the published upper limit, and the cable outer diameter must fall within the sealing accommodation range.
What you may want to know before selecting.
Why are energy storage devices divided into several interface categories?
The battery main circuit, communications, and auxiliary power serve different tasks. With different ratings, contact protection, and termination methods, selecting them separately makes verification easier and simplifies later maintenance.
Can multi-pin waterproof connectors directly replace branded energy storage interfaces?
Do not rely on pin count or appearance alone. The original interface drawings, mating parts and system requirements are needed; dedicated cable assemblies are also governed by the overall machine installation requirements. This page is for interface planning on new projects.
Does seeing RJ45 confirm the network speed?
Also consider the internal network modules, cable category, shielding, and end-to-end link performance. If PoE is required, the power class and temperature rise should be checked separately.
Application reference and catalog basis
Public equipment information is used to understand circuit roles and does not indicate any supply or intermateability relationship between LLT and the referenced brands.