Schneider Electric Modbus T-Connector VW3A8306TF03

Description

The Schneider Electric VW3A8306TF03 is a passive T-junction designed for creating tap-offs on a Modbus serial link. It is an essential accessory for building or expanding industrial communication networks, particularly for connecting devices like Altivar frequency drives. This unit features a rugged metal housing for durability in industrial environments and includes an integrated 0.3-meter cable with a male RJ45 connector, along with two female RJ45 ports for daisy-chaining or creating a branch.

Specifications

• Manufacturer: Schneider Electric
• Part Number: VW3A8306TF03
• Product Type: Modbus T-Junction / Tap-off
• Bus Type: Modbus
• Cable Length: 0.3 meters
• Electrical Connection: 1 male RJ45 connector, 2 female RJ45 connectors
• Housing Material: Metal

Label Info

• Brand: Schneider Electric
• Model: VW3A8306TF03
• Description: MODBUS T 0.3m

Application

This T-connector is widely used in automation systems to connect Modbus-enabled devices such as frequency converters (e.g., Altivar series), PLCs, and HMIs. The short cable length is perfect for creating clean, short-stub connections directly at the device, adhering to best practices for network topology.

Country of Origin

This product is manufactured by Schneider Electric in China.

CO2 Impact

By purchasing this reused item, you contribute to a circular economy and avoid approximately 3.2 kg of CO2 emissions that would be generated from manufacturing a new one. This saving is comparable to the emissions from driving a standard car for 16 kilometers.

Availability

This item is in stock and ready for immediate dispatch. Order now from PLC2Day for expert support and fast delivery.

FAQ

The red and blue buttons are used to activate or deactivate the Modbus line termination resistor. This is critical for maintaining signal integrity. The terminator should only be activated on the two devices at the physical ends of the Modbus network segment.

No, this connector is specifically designed and wired for Modbus serial communication over RJ45. While it uses the same physical connector as Ethernet, the pinout and electrical characteristics are different. Using it for Ethernet will not work and could potentially damage equipment.

The short 0.3-meter cable is ideal for creating a tap-off directly at the device port, such as on an Altivar frequency drive. It minimizes cable clutter and signal degradation by keeping the stub length on the network trunk as short as possible, which is a best practice for Modbus network topology.

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Last Update: Friday, March 13, 2026