J599HV High-Voltage, High-Current Circular Connectors, up to 300 A
Up to 300 A · 3500 V withstanding · IP65 · HV interlock option
XCD Bayonet Power Connectors, 25 to 300 A per Contact
Power contacts 25–300 A · hyperboloid sockets · bayonet
XCD is a bayonet circular connector dedicated to power. Hyperboloid wire-spring sockets from Ø2.5 to Ø14 mm carry 25 to 300 A each, in 16 layouts from one to nine contacts. Plugs, square-flange and jam-nut receptacles are available with solder, crimp or threaded (bolted) cable connection, and pins or sockets can be fitted on either side.
- Current per contact
- 25 to 300 A
- Contacts
- 1 to 9
- Rated voltage
- 500 V (1500 V test)
- Coupling
- Bayonet, five keys
- Temperature
- −55 to +150 °C
- Mating cycles
- 500
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Key features
- Dedicated power connector: contacts from Ø2.5 mm (25 A) to Ø14 mm (300 A)
- Hyperboloid wire-spring sockets for low contact resistance and smooth mating
- 16 standard layouts in shell sizes 22 to 85
- Solder, crimp or threaded (bolted) cable connection
- Plugs and receptacles can carry pins or sockets
- Five key positions to prevent mis-mating of parallel power lines
- Resistant to damp heat, salt spray, mold, rain, sand and dust
Specifications
| Parameter | Value | Condition |
|---|---|---|
| Rated voltage / withstanding voltage | 500 V / 1500 V | Normal atmosphere |
| Rated voltage / withstanding voltage, damp heat | 500 V / 1125 V | |
| Insulation resistance | ≥ 5000 MΩ / ≥ 1000 MΩ | Normal / damp heat |
| Shell-to-shell conductivity | ≤ 0.012 Ω (nickel) |
| Parameter | Value | Condition |
|---|---|---|
| Coupling | Bayonet | |
| Durability | 500 mating cycles | |
| Vibration | 10–2000 Hz, 196 m/s² (20 g) | |
| Shock | 980 m/s² (100 g) | |
| Acceleration | 980 m/s² (100 g) |
| Parameter | Value | Condition |
|---|---|---|
| Operating temperature | −55 to +150 °C | |
| Relative humidity | Up to 95 % at 40 °C | |
| Altitude | 30,000 m |
| Parameter | Value | Condition |
|---|---|---|
| Shell | High-strength aluminum alloy, electroless nickel | |
| Insulator | Thermoset plastic | |
| Contacts | Copper alloy, gold plated |
Parameters not listed above — for example vibration level, leak rate or other environmental tests — can be tested to your requirements, including third-party testing.
Crimp and solder contact dimensions
| Contact | Solder cup or crimp barrel ID (mm) | Outside diameter (mm) | Length beyond shell (mm) |
|---|---|---|---|
| Ø1.5 | 2.0 | 2.5 | 6.2 |
| Ø2.0 | 2.5 | 3.1 | 3.5 |
| Ø2.5 | 2.5 | 3.1 | 6.2 |
| Ø3.5 | 4.8 | 5.8 | 6.2 |
| Ø4.5 | 5.5 | 6.5 | 8.0 |
| Ø5.5 | 6.5 | 7.5 | 10.0 |
| Ø7.5 | 9.0 | 10.5 | 10.5 |
| Ø9.0 crimp | 12.0 | 17.0 | — |
| Ø10.0 | 10.0 | 12.0 | 10.0 |
| Ø12.0 crimp | 15.0 | 20.0 | — |
Versions
| Series code | Version | Notes |
|---|---|---|
| XCD…T | Plug | |
| XCD…F | Square-flange receptacle | With or without rear thread |
| XCD…L | Jam-nut receptacle | |
| Type I / Type II | Solder or crimp cable connection / threaded (bolted) cable connection |
Contact sizes and current ratings
| Contact size | Engaging diameter | Contact resistance | Current rating | Wire size |
|---|---|---|---|---|
| Ø2.5 | 2.5 mm | ≤ 1.00 mΩ | 25 A | — |
| Ø3.5 | 3.5 mm | ≤ 0.50 mΩ | 50 A | — |
| Ø4.5 | 4.5 mm | ≤ 0.35 mΩ | 60 A | — |
| Ø5.5 | 5.5 mm | ≤ 0.30 mΩ | 100 A | — |
| Ø7.5 | 7.5 mm | ≤ 0.20 mΩ | 150 A | — |
| Ø9.0 | 9.0 mm | ≤ 0.17 mΩ | 200 A | — |
| Ø10 | 10 mm | ≤ 0.20 mΩ | 200 A | — |
| Ø12 | 12 mm | ≤ 0.15 mΩ | 250 A | — |
| Ø14 | 14 mm | ≤ 0.12 mΩ | 300 A | — |
How to order
XCD [shell][type][layout][contact][finish][key]
Example: XCD36T4K1P1(W) — Plug, shell 36, layout 36-4 (4 × Ø4.5 mm), gold-plated sockets, nickel with rear thread, key W
| Code segment | Options |
|---|---|
| Shell | |
| Type | |
| Layout | |
| Contact | |
| Finish | |
| Key |
Contacts Ø1.0 to Ø3.0 mm in mixed layouts have the ratings of the XC series (5 to 40 A).
Insert arrangements
16 standard layouts, viewed from the mating face of the pin insert. The arrangement number is written as shell size – layout (for example 25-35).
16 layouts
| Arrangement | Contacts | Contact sizes |
|---|---|---|
| 22-1 | 1 | 1 × Ø10 |
| 22-3 | 3 | 3 × Ø3 |
| 22-4 | 4 | 4 × Ø3 |
| 27-1 | 1 | 1 × Ø12 |
| 27-6 | 6 | 4 × Ø1.5, 2 × Ø3.5 |
| 33-9 | 9 | 5 × Ø2.5, 4 × Ø3.5 |
| 36-2 | 2 | 2 × Ø10 |
| 36-3 | 3 | 3 × Ø4.5 |
| 36-4 | 4 | 4 × Ø4.5 |
| 36-6 | 6 | 5 × Ø2.0, 1 × Ø10 |
| 39-3 | 3 | 3 × Ø10 |
| 39-4 | 4 | 4 × Ø5.5 |
| 45-1 | 1 | 1 × Ø14 |
| 45-4 | 4 | 4 × Ø7.5 |
| 45-8 | 8 | 4 × Ø1.0, 4 × Ø7.5 |
| 85-4 | 4 | 1 × Ø9.0, 3 × Ø12 |
Contact counts and terminations
Standard contact counts
- 1
- 2
- 3
- 4
- 6
- 8
- 9
Terminations
- Solder
- Crimp
- Threaded (bolted)
Typical applications
- Power distribution and generator sets
- Battery and energy storage systems
- Motor drives and traction equipment
- Shore power and shipboard power
- Test benches with high-current supplies
Frequently asked questions
What is the current rating of XCD connectors?
Each contact carries 25 A (Ø2.5 mm) up to 300 A (Ø14 mm). The 85-4 layout combines one Ø9 mm and three Ø12 mm contacts for three-phase power with a neutral or earth.
Can I bolt the cable instead of crimping?
Yes — the Type II versions connect the cable with a threaded stud. Tell us the cable size and we will propose the terminal.
Related series
38999 Series III-Type Power Connectors, 33 to 225 A
33–225 A · 38999 Series III shell · marine grade
KH High-Current Circular Connectors, 5 to 800 A
5–800 A per contact · 400 V · 30 layouts · hermetic bulkhead version
XC Bayonet Circular Connectors with Hyperboloid Contacts
GJB 2889 bayonet · hyperboloid sockets · 1–62 contacts · 5–40 A
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.