Square D HGL36020AABCSD 36020A 3-Pole 600 V Circuit Breaker Potential Transformer

The Square D HGL36020AABCSD 36020A 3-Pole 600 V Circuit Breaker Potential Transformer is built for demanding industrial power systems where reliable protection and precise monitoring matter. This three-pole device is engineered to safeguard three-phase feeders and motors while seamlessly integrating with potential transformer-based metering and control schemes to support accurate energy measurement and fault isolation.

Overview

Designed for serious electrical environments, this 3-pole circuit breaker delivers a robust 600 V maximum rating and a substantial current capacity. The HGL36020AABCSD family is chosen by panel builders and maintenance teams who need dependable overcurrent protection paired with measurement compatibility to support modern energy-management strategies.

Key Specifications

• Part Number: HGL36020AABCSD
• Current rating: 36020 A
• Poles: 3
• Voltage rating: 600 V
• Type: Circuit breaker with potential transformer integration

Why this model stands out

• Three-pole protection for balanced three-phase systems: Equalized protection across all phases helps prevent unbalanced faults that can stress motors and feeders.
• 600 V compatibility for industrial plants: Suited for common industrial distributions and switchgear environments where higher voltage protection is required.
• Potential transformer integration: Built to support metering and control schemes that rely on scaled-down voltage/current signals, enabling accurate monitoring without compromising protection performance.
• Reliable, field-friendly design: Engineered for durable operation in demanding settings, with a form factor that fits standard Square D panel architectures.

Ideal use cases

• Protection for three-phase motor circuits in manufacturing, processing, and packaging facilities
• Feeder protection in switchgear assemblies and panelboards where precise metering is needed
• Critical load distribution where easy integration with potential-transformer metering supports energy management and fault analysis
• Industrial power distribution networks requiring robust interruption capability and compatibility with measurement equipment

Installation, compatibility, and practical tips

• Verify that your system voltage and three-phase configuration align with the 600 V rating and 3-pole design before installation.
• When integrating with a potential transformer-based metering scheme, follow the manufacturer’s wiring diagrams to ensure correct PT connections and signal routing for accurate data capture.
• Prepare for proper panel fit by consulting the enclosure and busbar layout in your Square D-compatible panels to ensure a clean, reliable installation.
• Maintenance: schedule periodic inspections of connection torque and insulation integrity, especially in harsh or dusty environments where electrical contact quality can drift over time.

Who should consider this product

Electrical engineers, panel builders, and maintenance technicians responsible for safeguarding industrial power distribution will appreciate the combination of solid overcurrent protection and potential-transformer compatibility. It’s particularly well-suited for environments where precise measurement and reliable trip performance are integral to safety, compliance, and efficiency.

Bottom line

With its three-pole design, 600 V rating, and potential transformer compatibility, the Square D HGL36020AABCSD offers targeted protection for three-phase systems while enabling accurate monitoring and metering. It’s a practical, purpose-built solution for industrial panels and switchgear that demand dependable protection paired with measurement-ready integration.