Square D HGL36090AABCSD 36090A 3-Pole 600 V Circuit Breaker Potential Transformer

Meet the Square D HGL36090AABCSD — a purpose-built 3-pole, 600 V circuit breaker with an integrated potential transformer. This combination unit is designed for demanding industrial environments where reliable fault protection and precise monitoring go hand in hand, helping you streamline installation and improve protection accuracy.

What it is

The HGL36090AABCSD is a three-phase protection device that not only interrupts fault current but also provides an onboard potential transformer for sensing and metering. With a stated current rating of 36090 A and a maximum voltage rating of 600 V, it’s engineered to guard serious electrical loads while feeding accurate signals to relays and meters without the need for additional external transformers.

Key features and benefits

• Integrated potential transformer: Simplifies protection and metering wiring by delivering scaled voltage directly to relays and monitoring equipment, reducing cabinet clutter and installation time.
• Three-pole design: Ideal for balanced 3-phase systems, providing synchronized protection across all phases for motors, feeders, and distribution circuits.
• Industrial-grade rating: 600 V maximum working voltage supports a wide range of industrial applications while maintaining reliable performance in tougher environments.
• Specific part identity: Part number HGL36090AABCSD ensures precise replacement parts and easy cross-reference within Square D/SCHNEIDER ELECTRIC ecosystems.
• Clear, verifiable parameters: Explicitly listed current rating and voltage rating help engineers select the right device for protection coordination and metering accuracy.

Ideal applications

• Motor control centers and large feeders that require both circuit protection and integrated sensing for protective relays.
• Industrial power distribution panels where space and wiring efficiency are priorities.
• Systems needing streamlined metering connections for monitoring voltage, current, and fault conditions without added transformers.

Specifications at a glance

• Poles: 3
• Voltage rating: 600 V
• Current rating: 36090 A
• Type: Circuit Breaker with Integrated Potential Transformer
• Part number: HGL36090AABCSD

Installation and practical considerations

Designed for Square D/Schneider Electric systems, this unit is best paired with compatible panels and protection schemes. For optimal performance, consult the product data sheet to confirm installation procedures, mounting clearances, and any torque specifications, and verify that your protection relays and metering equipment are configured to work with the integrated transformer outputs.