Product Overview
The ABB TB523‑2ETH 1SAP112300R0277 is a robust and flexible terminal base engineered for ABB industrial automation applications with dual Ethernet connectivity. It provides a secure and organized mounting platform for Ethernet‑enabled modules, enabling reliable power distribution and signal routing in compact control panels and distributed automation systems. Designed for durability and ease of installation, the TB523‑2ETH enhances system layout and simplifies network integration in demanding industrial environments.
Technical Specifications (Dimensions & Weight)
| Feature | Specification |
|---|
| Model | TB523‑2ETH 1SAP112300R0277 |
| Module Type | Terminal Base |
| Function | Provides mechanical support and secure electrical connection for Ethernet/I/O modules |
| Supported Modules | ABB Ethernet‑enabled and I/O interface modules |
| Terminal Type | Spring clamp terminals for signal and power wiring |
| Supply Voltage | 24 V DC (for powered modules) |
| Current Rating | Up to 10 A per terminal |
| Communication | Dual Ethernet connections routed through terminal base |
| Mounting | Standard DIN rail mounting |
| Operating Temperature | –20 °C to +60 °C |
| Storage Temperature | –40 °C to +70 °C |
| Relative Humidity | 5 % – 95 % non‑condensing |
| Dimensions (W × H × D) | Approx. 180 × 70 × 50 mm |
| Net Weight | Approx. 0.85 kg |
Applications
The TB523‑2ETH terminal base is well suited for a variety of industrial automation scenarios where organized module placement and reliable networking are critical:
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Mounting dual‑Ethernet modules and I/O interface units in control cabinets
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Structured signal and power distribution in PLC and distributed automation systems
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Network expansion with secure connections for Ethernet communication
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Supporting organized wiring for industrial controllers and field devices
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Retrofitting automation panels to enhance network topology and connectivity
Its dual Ethernet capability streamlines network integration without compromising space or reliability.
Advantages
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Dual Ethernet support: Built‑in accommodation for two Ethernet connections enhances network flexibility
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Secure terminal connections: Spring clamp terminals ensure stable and low‑maintenance wiring
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Durable industrial construction: Designed to withstand typical factory floor stresses
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Space‑efficient design: Compact footprint supports dense panel layouts
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Easy DIN rail installation: Standard mounting simplifies control panel construction
These attributes make the TB523‑2ETH an ideal base for structured automation system design where network reliability and wiring clarity matter.
Technical FAQs (10)
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What is the primary purpose of the TB523‑2ETH?
It provides a stable and organized terminal base for Ethernet‑enabled modules and associated wiring.
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What types of modules can be mounted on it?
ABB Ethernet‑capable modules and compatible I/O interface units.
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What kind of terminals are used?
Spring clamp terminals that facilitate secure and tool‑free connections.
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What is the recommended supply voltage?
24 V DC for powered modules mounted on the base.
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How much current can each terminal handle?
Up to approximately 10 A per terminal.
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Does it support Ethernet connectivity?
Yes — it is designed to route dual Ethernet connections through the base.
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What is the operating temperature range?
–20 °C to +60 °C.
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What are the physical dimensions?
Approx. 180 × 70 × 50 mm (W × H × D).
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What is the weight of the terminal base?
Approximately 0.85 kg.
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Is it suitable for industrial control panels?
Yes — its design, terminals, and mounting options make it well suited for industrial panel use.
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