Square D H221AWK - 30A, 240V, 3-Phase, Switch, NEMA 1

The Square D H221AWK is a rugged 30A, 240V, 3-phase fusible switch designed to deliver reliable on/off isolation and overcurrent protection in demanding industrial and commercial environments. With a NEMA 1 indoor rating, this switch provides a compact, maintenance-friendly solution for motor disconnects, panelboards, and branch circuit protection where space matters and serviceability counts.

Why this fusible switch stands out

• Three-phase, 30A at 240V—suits multiple-motor applications and 3-phase feeders without overcomplicating the panel layout.
• NEMA 1 enclosure—built for indoor use, offering reliable protection in clean, dry, protected environments.
• Fusible protection—provides decisive circuit interruption during overloads or faults, guarding downstream equipment and wiring.
• Maintenance-friendly design—engineered for straightforward fuse replacement and quick field servicing to minimize downtime.
• Compact footprint—purposefully sized to fit crowded panels and limited spaces without sacrificing performance.
• Trusted Square D quality—backed by a long-standing reputation for dependable electrical safety and compatibility with broader Square D and Schneider Electric systems.

Ideal applications and use cases

• Motor disconnects in small-to-mid-size industrial lines where a dedicated switch is required for safe maintenance and service.
• Panelboard feeders that demand reliable, code-compliant isolation and overcurrent protection.
• Branch circuit protection for 3-phase equipment such as pumps, conveyors, compressors, and processing equipment.
• Indoor electrical assemblies in manufacturing, HVAC, and facility automation where space and serviceability are top priorities.

How it helps your operation

By combining a robust 3-phase disconnect with fusible protection in a compact NEMA 1 enclosure, the H221AWK reduces risk during maintenance, simplifies testing and commissioning, and improves overall electrical safety. Its design emphasizes straightforward wiring and easy fuse access, so technicians can perform preventive maintenance quickly, keeping production downtime to a minimum.

Key specifications

• Model: H221AWK
• Amperage: 30 A
• Voltage: 240 V
• Phase: 3-Phase
• NEMA rating: NEMA 1

For indoor applications that require dependable isolation and protective switching for 3-phase systems, the Square D H221AWK delivers clear, practical value. Its combination of compact size, maintainable fusible protection, and reliable performance helps you safeguard equipment, minimize downtime, and keep electrical systems running smoothly.