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ABB TB521-ARCNET AC500 Terminal Base (3ABD00029560)

£287.94

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  • 2 Comm Slots: Flexible communication expansion for AC500 V2 systems.
  • ARCNET Interface: Legacy support for deterministic industrial protocols.
  • Dual Serial Ports: RS232/RS485 for versatile PLC connectivity.
  • DIN Rail Mounting: Compact and modular installation.
  • Industrial Reliability: Designed for harsh operating environments.
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SKU: TB521-ARCNET Category: Tag: Brand:
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ABB TB521-ARCNET AC500 Terminal Base

The ABB TB521-ARCNET is a robust terminal base designed for AC500 V2 PLC systems, featuring two communication module slots, ARCNET connectivity, and dual RS232/RS485 serial interfaces. Ideal for complex automation networks requiring high reliability and legacy protocol support.


Technical Specifications

Manufacturer: ABB
Product Name: TB521-ARCNET ABB
Product ID: 3ABD00029560
Platform: AC500 V2
Function: Terminal base with ARCNET and 2x RS232/RS485 interfaces
Communication Slots: 2 slots for communication modules
Communication Interface: D-SUB / Coax / Terminals
Supply Voltage: 24 V DC
Degree of Protection: IP20


Mechanical Dimensions

Net Weight: 0.187 kg
Gross Weight: 0.246 kg
Product Dimensions (L x W x H): 28 mm x 123.5 mm x 135 mm
Package Dimensions (L x W x H): 147 mm x 131 mm x 40 mm


Environmental & Compliance

Operating Temperature: 0 … +60 °C
Storage Temperature: -40 … +70 °C
RoHS: Compliant – EU Directive 2011/65/EU & Amendment 2015/863
REACH: Compliant – Contains SVHC > 0.1%
SCIP Code: c171af37-8456-4dee-b15c-03da3448dd42
Declaration of Conformity: CE – 3ADR980140
Tariff Code (CN8): 85389091
WEEE Category: 5 – Small Equipment


Ordering Information

Invoice Description: Terminal base. For AC500 V2. 2 slots for communication module. ARCNET interface. 2 serial interfaces RS232/RS485
Minimum Order Quantity: 1 piece
Order Multiple: 1 piece
Selling Unit: Piece


Key Features

2 Comm Slots: Flexible communication expansion for AC500 V2 systems.

ARCNET Interface: Legacy support for deterministic industrial protocols.

Dual Serial Ports: RS232/RS485 for versatile PLC connectivity.

DIN Rail Mounting: Compact and modular installation.

Industrial Reliability: Designed for harsh operating environments.


📦 Buy ABB Terminal Bases – 2 Slot, ARCNET + Serial Interface

At Drive Outlet Megastore we offer unbeatable ABB TB521-ARCNET prices.

Whether you’re upgrading your automation network or integrating legacy ARCNET systems, the TB521-ARCNET is a high-performance terminal base solution for modern AC500 V2 PLC architectures.

Contact our team now for quotes, lead times, or technical advice.

Weight 1 kg

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ABB is a global leader in industrial automation, motor control, and power technology. Known for exceptional reliability and performance, ABB products are widely used in manufacturing, energy, infrastructure, and automation systems worldwide.


At Drive Outlet Megastore, we stock a wide range of ABB automation products including inverter drives, soft starters, servo drives, PLC components, safety devices, power supplies, and replacement parts. Our selection includes both current and legacy ABB models, ensuring compatibility with existing systems and new installations.


ABB products are commonly used in conveyor systems, pumps, fans, robotics, packaging machinery, and industrial production lines. Their advanced technology, robust design, and long service life make them a trusted choice for demanding industrial applications.


We supply ABB products with fast delivery and competitive pricing, helping minimise downtime and maintain reliable system performance. If you’re unsure which ABB product is suitable for your application, our technical team can help you identify and select the correct model.

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