ABB Symmetric GTO Thyristors: Bidirectional Power Switching for Demanding Applications

When performance, durability, and precise control are required in high-power industrial environments, ABB symmetric Gate Turn-Off (GTO) thyristors provide an exceptional solution. Designed for bidirectional conduction, these components excel in applications where power needs to flow in both directions — such as medium-voltage drives, traction converters, and advanced energy systems.

♻️ What Are Symmetric GTO Thyristors?

A symmetric GTO thyristor is a power semiconductor switch capable of blocking voltage and conducting current in both directions. Unlike asymmetric GTOs, which only allow unidirectional current, symmetric types are optimized for use in AC applications, where polarity may alternate frequently.

✅ Key Features of ABB Symmetric GTO Thyristors

• 🔁 Bidirectional current handling

• ⚡ High voltage blocking (up to 4,500V)

• 🔧 Reliable under cyclic load and thermal stress

• 🧱 Robust package and mechanical stability

• 🔌 Industry standard interface and compatibility

🔍 Where Symmetric GTOs Are Used

ABB’s symmetric GTO thyristors are commonly found in:

• 🛤 Traction converters for locomotives and rail systems

• ⚙️ Medium-voltage motor drives in heavy industry

• 🔋 Energy conversion systems and grid stabilization

• 🌐 AC power control and reactive power compensation

• 🔁 Bidirectional converters and regenerative systems

🛒 Highlighted ABB Symmetric GTO Thyristors in Stock

🔸 ABB 5SGS08D2500

• Voltage: 2,500V

• Current: 800A

• Use: Compact bidirectional switch for lower-medium power AC systems

🔸 ABB 5SGS12F2500

• Voltage: 2,500V

• Current: 1,200A

• Use: Medium-voltage industrial drives and railway converters

🔸 ABB 5SGS16H4500

• Voltage: 4,500V

• Current: 1,600A

• Use: High-power AC switching for demanding environments

🔗 Browse our full ABB Symmetric GTO Thyristor Collection here

🌍 Why Choose DDPARTS Solution?

• ✅ Authentic ABB parts in stock

• ✅ Fast global shipping

• ✅ Competitive pricing and bulk availability

• ✅ Expert support on industrial automation components

🧠 Understanding Symmetric vs. Asymmetric GTOs

❓ FAQ: ABB Symmetric GTO Thyristors

Q1: How do I know if I need a symmetric GTO?
A1: If your system requires AC control or bidirectional current flow, symmetric GTOs are the correct choice.

Q2: Are ABB symmetric GTOs available in different current ratings?
A2: Yes, from 800A to 1600A and beyond — we have models like 5SGS08D2500, 5SGS12F2500, and 5SGS16H4500 in stock.

Q3: Do you ship globally?
A3: Yes, DDPARTS Solution ships worldwide with reliable logistics.

📦 Order Now

ABB symmetric GTO thyristors are built to deliver consistent performance in bidirectional industrial switching environments. Find the right model for your system, and order today with confidence.

🛒 Explore our complete ABB Symmetric GTO catalog here