Shimano EW-JC302 Junction Box for EW-SD300

The EW-JC302 junction box with two slots for Shimano EW-SD300 power cables

Shimano's EW-JC302 junction box has two slots that are compatible with the EW-SD300 power cable for outside cable routing and the EW-SD300-I power cable for inside cable routing. It can be used as a contact point for e-bikes from the EP8 and EP6 series as well as for Di2 shifting systems, as both work with the E-Tube platform. In the cabling plan, the bos takes on the function of the so-called junction B. Older EW-SD50 cables are not compatible.

Information regarding the return of batteries and electrical equipment:

Information on the return and disposal of batteries and electrical equipment can be found here.

Guidelines for Replacing E-bike Components:

Before you replace components on your e-bike, please read through the guidelines for component replacement for CE-marked e-bikes/pedelecs with pedal assistance.

Specifications:

Number of connections:

2

Material:

Composite

Compatibility:

Power Cable:

• EW-SD300
• EW-SD300-I

E-Bike:

• EP8 EP801 for MTB / Touring
• EP8 EP801 for Urban / Touring
• EP8 EP801 for cargo bike
• EP8 EP800 for MTB / Touring
• EP8 EP800 for Urban / Touring
• EP8 EP800 for cargo bike
• EP6 for MTB / Touring
• EP6 for Urban / Touring
• EP6 for cargo bike

Shifters & Derailleurs:

• Dura-Ace Di2 R9250 (2x12-speed, 2x12-speed TT/Triathlon set-up)
• Ultegra Di2 R8150 (2x12-speed, 2x12-speed TT/Triathlon set-up)
• 105 Di2 R7150 (2x12-speed)

Features:

• B junction with 2 connections
• updated version for power cable EW-SD300

Manufacturer Number:

I-EWJC302

Contents:

• 1 x Shimano Di2 EW-JC302 junction box