Square D HDA36090UK 90A 3-Pole 600 V Circuit Breaker

Meet the Square D HDA36090UK — a reliable 90A, 3-pole circuit breaker engineered for three‑phase electrical systems. With a 600 V rating, this unit delivers precise, dependable protection for motor drives, feeders, and distribution panels in commercial and light‑industrial environments.

Key specifications

• Part Number: HDA36090UK
• Current rating: 90 A
• Poles: 3
• Voltage rating: 600 V
• Brand: Square D (Schneider Electric)

Why this breaker stands out

• Designed specifically for three‑phase distribution, making it an ideal choice for protecting motors, pumps, conveyors, and other 3‑phase equipment.
• Part of the trusted Square D line, offering consistent performance and straightforward integration with compatible Square D panels and enclosures.
• Compact, rugged construction suited for demanding environments where space is at a premium but protection cannot be compromised.

Practical use cases and scenarios

• New installations in commercial or light‑industrial electrical rooms where 600 V systems are standard.
• Replacement of aging breakers in panels that require 3‑pole, 90 A protection to safeguard three‑phase feeders from overcurrent events.
• Motor and drive fault protection in manufacturing lines, HVAC systems, and processing equipment.

How it helps you make the right choice

• Compatibility: Ideal for Square D panels and enclosures designed to accept HDA‑series breakers, ensuring a smooth replacement or upgrade path.
• Reliability: With a clear, defined 90 A limit, it provides predictable protection for circuits that demand steady, dependable performance.
• Ease of integration: Standard mounting and electrical connection conventions simplify installation, reducing downtime during service or upgrades.

In essence, the Square D HDA36090UK 90A 3‑Pole 600 V Circuit Breaker is a focused, purpose‑built solution for safeguarding three‑phase power in demanding environments. If your application runs on 600 V three‑phase distribution and requires solid, dependable overcurrent protection, this unit is a precise, purpose‑built match.