ISO 11446 (13-Pin) vs. US 7-Way RV Blade Socket
Comparing 2 standards across 14 specifications. 14 key differences identified.
The ISO 11446 Connector (also known as the Jaeger 13-Pin European standard) is the modern mandatory trailer electrical interface across Europe, the UK, and Australia. Featuring an IP-sealed, waterproof bayonet twist-locking circular housing with 13 gold-plated pin contacts supporting individual left/right lighting circuits, rear fog lamps, reverse lights, and continuous/switched caravan power.
The US 7-Way RV Blade Connector (standardized under SAE J2863) is the primary heavy trailer electrical interface in North America. Encased in a rugged round socket with a spring-loaded weather flap, it provides 7 flat brass blade terminals powering tail lights, turn signals, reverse backup lights, 12V auxiliary battery charging, and proportional electric trailer brakes.
Specification Comparison Table
14 Parameters| Parameter / Spec | ||
|---|---|---|
|
Standardization
|
ISO 11446-1 / DIN ISO 11446 (Jaeger 13-Pole System) | SAE J2863 / US RV Industry Standard 7-Way Blade |
|
Mechanical Bayonet Lock
|
90-degree twist-to-lock bayonet collar with double silicone perimeter gasket (fully waterproof IP67) | — |
|
Pin 1 & 4 (Indicators)
|
Pin 1: Left Indicator (Yellow) | Pin 4: Right Indicator (Green) | — |
|
Pin 2 & 8 (Fog & Reverse)
|
Pin 2: Rear Fog Lamp (Blue) | Pin 8: Reversing Lights (Pink) | — |
|
Pin 3, 11, 13 (Independent Grounds)
|
Pin 3: Ground for Pins 1-8 | Pin 11: Ground for Pin 10 | Pin 13: Ground for Pin 9 (isolated 2.5 mm² ground returns) | — |
|
Pin 5 & 7 (Isolated Left/Right Tail)
|
Pin 5: Right Side Marker/Tail (Brown) | Pin 7: Left Side Marker/Tail (Black — separate fuses prevent total blackout if one side fails) | — |
|
Pin 9 & 10 (Caravan Power)
|
Pin 9: Permanent +12V unswitched battery feed (Orange) | Pin 10: Switched ignition +12V for caravan 3-way absorption refrigerator (Grey) | — |
|
Pin 1 (White / Center bottom)
|
— | Chassis Ground (Heavy 10 AWG wire for high-current electric brake return) |
|
Pin 2 (Blue / Center left)
|
— | Electric Trailer Brakes (+12V modulated PWM signal from in-cab brake controller) |
|
Pin 3 (Green / Top right)
|
— | Tail Lights, License Plate & Running Clearance Markers |
|
Pin 4 (Black / Top left)
|
— | +12V Auxiliary Battery Charging Power (30A fused feed to charge RV house batteries while driving) |
|
Pin 5 (Red / Bottom left)
|
— | Left Turn Signal & Left Brake Light |
|
Pin 6 (Brown / Bottom right)
|
— | Right Turn Signal & Right Brake Light |
|
Pin 7 (Yellow / Center pin)
|
— | Reverse / Backup Lights & Electric Reverse Lockout Solenoid for boat surge brakes |