Siemens 3LD2254-0TK51 3-Pole Switch Disconnector, 32 A, 690 V, Red/Yellow

In industrial control panels and machine power distribution, the Siemens 3LD2254-0TK51 switch disconnector provides reliable load breaking and isolation. Rated at 32 A with a 3-pole configuration, this rotary-operated unit is suitable for front or floor mounting. The red and yellow handle offers clear visual status indication.

Key specifications

• Rated operational current: 32 A
• Number of poles: 3
• Rated operational voltage: 690 V
• Rated insulation voltage: 690 V
• Rated impulse withstand voltage: 6 kV
• Rated short-circuit making capacity: 640 A
• Rated short-circuit breaking capacity: 640 A
• Rated short-time withstand current: 0.64 kA / 1 s
• Rated operational power at AC-23 A (400 V): 11.5 kW
• AC input frequency: 50/60 Hz
• Mounting type: Front mounting, Floor mounting
• Operating mechanism: Rotary
• Handle color: Red/Yellow
• Degree of protection (front): IP65
• Degree of protection (terminals): IP20
• Switching angle: 90 degrees
• Mechanical service life: 100,000 switching cycles
• Operating temperature range: -25 to +50 °C
• Dimensions (W x D x H): 67 x 116.5 x 83 mm

Why choose it

The 3LD2254-0TK51 offers a compact design with high switching capacity, making it suitable for demanding industrial environments. Its IP65 front protection ensures resistance to dust and water jets when properly installed.

Ideal use cases

• Main and emergency stop switches in machinery
• Power distribution in control cabinets
• Isolation of motor circuits up to 11.5 kW at 400 V

Good to know

The device is designed for use in three-phase systems with a rated insulation voltage of 690 V. The red and yellow handle is standard for switch disconnectors, providing a recognizable interface for operators.