Siemens TPS4 - 30A, 277V, 3-Phase, Fusible, Switch

The Siemens TPS4 30A 277V 3-Phase Fusible Switch is a robust on/off isolation device engineered for reliable operation in demanding industrial and commercial environments. With a 30-ampere rating and 277-volt three-phase design, this fusible switch combines straightforward circuit isolation with built-in overcurrent protection, streamlining control gear and reducing panel complexity.

Key specifications

• Model: TPS4
• Amperage: 30A
• Voltage: 277V
• Phase: 3-Phase
• Fused: Fusible

Where it shines

• Motor disconnects: Quickly isolate motors for maintenance or fault conditions without removing protection devices separately.
• Panelboards: Consolidate switching and protection in a compact footprint, freeing space for other essential components.
• Branch circuit protection: Provides targeted overcurrent protection right at the source, helping to limit damage and downtime.

Why choose the TPS4 in your electrical cabinet

The TPS4 is designed to endure the rigors of industrial use. Its fusible design not only safeguards equipment from overcurrent but also simplifies wiring by combining switching and protection in a single, compact unit. This makes it easier to maintain and replace without scouring for multiple parts, reducing downtime during maintenance or upgrades.

Ideal for environments where reliable isolation and protection are critical—think manufacturing lines, HVAC installations, pumps and conveyors, or any application needing a space-efficient, maintainable fuse-switch solution.

Practical tips

• Match the load with the 30A rating to ensure safe operation; use appropriate fuses sized for your motor and inrush characteristics.
• Plan around future expansion: a compact TPS4 unit frees up panel space for additional circuits or future upgrades.
• Integrate with standard control wiring and protective relays to centralize motor protection and control logic.