Siemens 3LD2704-0TK53 - 100A, 400V, 3-Pole, Disconnect Switch

Meet the Siemens 3LD2704-0TK53, a high-performance 3-pole disconnect switch crafted for industrial and commercial environments where safe, reliable electrical isolation is non-negotiable. With a 100A current rating and a 400V capability, this disconnect switch delivers dependable disconnection under load while supporting robust lockout/tagout procedures for safer maintenance and servicing. Built for long-term durability, the 3LD2704-0TK53 is a trusted component in control systems, switchboards, and motor control layouts where every isolation point must perform when it matters most.

Key specifications

• Amperage rating: 100A
• Voltage rating: 400V
• Number of poles: 3-Pole
• Product type: Disconnect Switch
• Brand: Siemens
• Model: 3LD2704-0TK53

What sets the 3LD2704-0TK53 apart

• Three-pole design ensures simultaneous isolation of all three phases, reducing the risk of partial energization during maintenance.
• Designed to support proper lockout/tagout procedures, helping you meet safety standards and minimize downtime during servicing.
• Built for dependable disconnection under load, enabling safe work environments and reliable system maintenance.
• Durable construction optimized for continuous use in demanding industrial and commercial settings.

Ideal applications

• Industrial facilities with three-phase motors, conveyors, pumps, and heavy agricultural or manufacturing equipment.
• Commercial building switchgear and control panels requiring a dedicated service/disconnect point.
• Maintenance shutdowns, energy isolation points, and safety-critical isolation for routine servicing.

Practical tips and usage scenarios

When integrating the Siemens 3LD2704-0TK53, plan its placement as the primary isolation point within your control circuit or MCC (motor control center). Ensure alignment with existing safety procedures, and pair with compatible enclosure and mounting configurations to maximize reliability. In daily practice, verify disconnect status before any service work, and always re-verify after re-energizing to confirm a clean, safe return to service.