Siemens HMX3A800L 3A 3-Pole 600 V Circuit Breaker

Siemens HMX3A800L is a purpose-built three-pole, 3 A circuit breaker designed for three-phase electrical systems operating up to 600 V. With part number HMX3A800L, this device delivers dependable overcurrent protection for motors, pumps, fans, and other high-demand loads, helping to prevent damage from overloads and short circuits while keeping downtime to a minimum. Key specifications

• Current rating: 3 A per pole
• Poles: 3 (three-pole configuration for 3-phase protection)
• Voltage rating: up to 600 V
• Part number: HMX3A800L
• Application: suitable for safeguarding three-phase circuits in commercial and light industrial electrical distributions

What sets the HMX3A800L apart

• Precise, reliable protection for 3-phase loads. The 3 A rating is ideal for controlled protection where every phase must be safeguarded equally, reducing the risk of unbalanced faults in multi-motor or multi-line setups.
• Compact three-pole design tailored for standard three-phase panel architectures, making it a straightforward, plug-and-play replacement for compatible Siemens installations.
• Part-number specificity (HMX3A800L) ensures you’re selecting the exact component for the intended system, simplifying maintenance, replacements, and ordering in the field.
• Robust construction suited to industrial environments, offering dependable operation within its voltage class and contributing to longer equipment life for connected loads.

Ideal use cases

• Three-phase motor circuits in manufacturing, HVAC, or processing facilities where precise 3 A protection helps minimize unnecessary interruptions
• Three-phase distribution feeders in commercial or light industrial panels requiring reliable up to 600 V protection
• Replacement in Siemens-based control panels where exact part compatibility with the HMX series is important

Installation and practical tips

When integrating the HMX3A800L, verify compatibility with your panel and three-phase wiring scheme. Ensure the protection level matches your load profile and follow all local electrical codes. For mounting and wiring, consult a qualified electrician to confirm correct wiring of all three phases (L1, L2, L3) and to confirm secure, compliant connections. Proper labeling and documentation of the part number (HMX3A800L) will streamline future maintenance and replacements.

Why choose Siemens for this role

Siemens brings a long-standing reputation for dependable electrical protection solutions. The HMX3A800L combines precise current rating, three-pole three-phase coverage, and a 600 V rating in a compact package that aligns with standard panel configurations. For technicians and facilities managers seeking a reliable, easily identifiable component that supports consistent protection across all three phases, this breaker is a clear, purposeful choice.