Siemens 5SJ4104-7HG40 - 4A, Circuit Breaker

Meet the Siemens 5SJ4104-7HG40 — a precise 4A circuit breaker engineered for reliability in demanding electrical systems. This unit is rated at 4A and classified as a Circuit Breaker, making it a versatile choice for panelboards, switchboards, control panels, and OEM equipment where protected power distribution matters.

In industrial, commercial, and OEM environments, dependable overcurrent protection and safe operation are non-negotiable. The 5SJ4104-7HG40 provides consistent fault interruption to safeguard wiring, motors, sensors, and downstream devices from short circuits and overloads, while aligning seamlessly with distribution panels and motor control centers.

Key specifications

• Current rating: 4 A
• Breaker type: Circuit Breaker

Ideal use cases

• Protecting branch circuits in panelboards and switchboards within factory automation setups.
• Safeguarding motor control centers and control panels in commercial facilities.
• OEM equipment protection where a reliable overcurrent device with a compact footprint is required.

What sets it apart

Beyond the basics, this Siemens device carries the reliability of the 5SJ family — designed for stable performance in environments where downtime costs money. Its 4 A rating targets sensitive control circuits, helping you prevent nuisance trips while ensuring robust protection for downstream equipment.

Practical tips for use

• Match the 4 A rating to your protected load’s maximum operating current to balance safety with uninterrupted operation.
• When integrating into panelboards or control panels, verify compatibility with your enclosure’s mounting and electrical connections to ensure secure installation.
• In motor control centers, use as part of a coordinated protection strategy to isolate faults quickly and minimize impact on the rest of the system.

Designed for confidence

Whether you’re outfitting new equipment or upgrading existing control architectures, the Siemens 5SJ4104-7HG40 delivers disciplined protection, dependable performance, and the trust of a renowned brand. Choose this 4A circuit breaker for reliable overcurrent protection in industrial, commercial, and OEM settings where safety and uptime are essential.