J599 Series III Circular Connectors (38999 Series III Type)
38999 Series III type · shell sizes 9–25 · 184 insert arrangements
J599HV High-Voltage, High-Current Circular Connectors, up to 300 A
Up to 300 A · 3500 V withstanding · IP65 · HV interlock option
J599HV is a compact high-voltage, high-power circular connector for tight spaces such as equipment bays and engine compartments. Contacts range from size 6 (80 A) to size 4/0 (300 A), with 3500 V withstanding voltage, IP65 sealing, EMI shielding and threaded coupling with anti-decoupling. A high-voltage interlock (HVIL) version is available.
- Current rating
- 80–300 A per contact
- Withstanding voltage
- 3500 V
- Contacts
- 1 to 4
- Shell sizes
- 13 to 27
- Protection
- IP65
- Temperature
- −55 to +175 °C
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Key features
- High-power contacts from size 6 (80 A) to size 4/0 (300 A)
- 3500 V dielectric withstanding voltage
- Optional high-voltage interlock (HVIL) circuit
- IP65 sealing and EMI shielding
- Threaded coupling with anti-decoupling; five-key polarization with six key positions
- Crimp, solder or bolted (screw) contacts; straight, 90° or 45° backshells
- Small and light for equipment bays and engine compartments; contact counts customizable
Specifications
| Parameter | Value | Condition |
|---|---|---|
| Dielectric withstanding voltage | 3500 V | |
| Insulation resistance | ≥ 5000 MΩ | |
| Current rating | 80–300 A | Per contact, size 6 to 4/0 |
| Parameter | Value | Condition |
|---|---|---|
| Ingress protection | IP65 | |
| Coupling | Thread, anti-decoupling | M18 × 1 to M42 × 1 |
| Durability | 500 mating cycles | |
| Sine vibration | 10–2000 Hz, 196 m/s², 12 h | |
| Shock | 2940 m/s², 3 ms | |
| Operating temperature | −55 to +175 °C | |
| Salt spray | 48 h | |
| Mold resistance | Grade 2, 28 days |
GB 4208 (IEC 60529) — IP65 degree of protection.
Parameters not listed above — for example vibration level, leak rate or other environmental tests — can be tested to your requirements, including third-party testing.
Versions
| Series code | Version | Notes |
|---|---|---|
| J599HV/26 | Plug | |
| J599HV/20 | Square-flange receptacle | |
| …01 / …02 | Without / with high-voltage interlock | |
| (none) / W / X | Straight / 90° / 45° backshell | Bolted-contact versions have no backshell |
Shell materials and finishes
| Code | Shell material | Finish | Shell conductivity | EMI shielding | Temperature | Salt spray |
|---|---|---|---|---|---|---|
| F | Aluminum alloy | Nickel | — | EMI shielded | −55 to +175 °C | 48 h |
Contact sizes and current ratings
| Contact size | Engaging diameter | Contact resistance | Current rating | Wire size |
|---|---|---|---|---|
| 6 | 4.52 mm | 0.42 mΩ | 80 A | — |
| 4 | 5.72 mm | 0.29 mΩ | 100 A | — |
| 2 | 7.19 mm | 0.17 mΩ | 150 A | — |
| 0 | 9.07 mm | 0.14 mΩ | 200 A | — |
| 2/0 | 10.31 mm | 0.10 mΩ | 250 A | — |
| 4/0 | 12.70 mm | 0.09 mΩ | 300 A | — |
How to order
J599HV/ [type] [finish] [shell] [arrangement] [contact] [key] [interlock] [backshell]
Example: J599HV/26FC01JPA01W — Plug, aluminum nickel, shell C (13), single size 6 crimp pin, key A, no interlock, 90° backshell
| Code segment | Options |
|---|---|
| Type | |
| Finish | |
| Shell | |
| Arrangement | |
| Contact | |
| Key | |
| Interlock | |
| Backshell |
Second example: J599HV/20FD01LStB01 — receptacle, shell D (15), single size 4 bolted socket, key B, no interlock, no backshell.
Insert arrangements
10 standard layouts, viewed from the mating face of the pin insert. The arrangement number is written as shell size – layout (for example 25-35).
10 layouts
| Arrangement | Contacts | Contact sizes |
|---|---|---|
| 13-01J | 1 | 1 × size 6 |
| 15-01L | 1 | 1 × size 4 |
| 17-01b | 1 | 1 × size 2 |
| 17-01h | 1 | 1 × size 0 |
| 19-01J | 1 | 1 × size 2/0 |
| 21-01 | 1 | 1 × size 4/0 |
| 23-02 | 2 | 2 × size 6 |
| 25-02 | 2 | 2 × size 4 |
| 25-04 | 4 | 4 × size 6 |
| 27-04 | 4 | 4 × size 4 |
Contact counts and terminations
Standard contact counts
- 1
- 2
- 4
Terminations
- Crimp
- Solder
- Bolted (screw)
Typical applications
- Electric and hybrid vehicle power systems
- Battery and energy storage systems
- Rail traction and auxiliary power
- Industrial drives and inverters
- Ground power and test equipment
Frequently asked questions
What current and voltage can J599HV carry?
Contacts are rated from 80 A (size 6) to 300 A (size 4/0), with 3500 V dielectric withstanding voltage. Tell us your working voltage and current and we will confirm the configuration.
What is the HV interlock option?
The 02 version adds a high-voltage interlock (HVIL) circuit, so your system can detect when the connector is unmated and switch off the high-voltage supply.
Can I get other contact counts?
Yes. The catalog lists 1, 2 and 4-contact layouts; other counts can be made to your requirements.
Selection guides
Related series
J599FS IP67 Waterproof 38999-Type Connectors with J1784FS Backshells
IP67 with J1784FS backshell · threaded 38999 type · rain-tested
From sample to production
Send your requirements
Part number, drawing, pin-out or a short description of your application.
Configuration and quote
Our engineers match the configuration and reply with a drawing and quotation.
Samples
Samples are built to order. The minimum order quantity is 10 pieces, and samples and production orders each take 4–8 weeks. Third-party testing to your specification is available on request.
Your approval
You test the samples in your own equipment and approve them.
Series production
Production follows the approved sample configuration, with machining, molding, plating and assembly in our own Shenyang factory.
Need a quote or a drawing?
Send your part number, pin-out or drawing. Every inquiry is acknowledged by email within 1 business day, and an engineer follows up with a matched configuration, drawing or quotation.
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