Siemens SENTRON 3LD2 3-Pole Switch Disconnector 25A 690V Red/Yellow 3LD21300TK13

The Siemens 3LD2130-0TK13 is a robust 3-pole switch disconnector from the SENTRON 3LD2 series, engineered for reliable load isolation in industrial control circuits. Unlike standard rotary switches, it combines a high rated operational current of 25 A with a compact 53 mm width, making it ideal for space-constrained panel installations. The red/yellow rotary handle provides clear visual status indication, while the IP65 front protection ensures dependable operation even in dusty or damp environments.

Highlights

• 3-pole switching for three-phase circuits up to 690 V
• Rated operational current of 25 A for demanding loads
• High short-circuit making capacity of 640 A for enhanced safety
• Front-mounted design with 1-hole mounting for easy installation
• Rotary actuator in red/yellow for clear ON/OFF indication
• IP65 front protection against dust and water jets

In daily use

This switch disconnector is designed for frequent operation, with a mechanical endurance of 100,000 operating cycles. The rotary mechanism provides a positive snap action, ensuring secure switching even under load. Auxiliary contacts (1 NO + 1 NC) allow integration with control systems for status monitoring. The wide operating temperature range from -25 °C to +55 °C makes it suitable for harsh industrial environments.

Full specifications

• Rated operational current (Iu): 25 A
• Number of poles: 3
• Rated operational voltage (Ue): 690 V
• Rated insulation voltage (Ui): 690 V
• Rated impulse withstand voltage (Uimp): 6 kV
• AC input frequency: 50/60 Hz
• Rated short-circuit making capacity (Icm): 640 A
• Rated operating power (AC-23A, 400 V): 11.5 kW
• Mounting type: Front-mounted, 1-hole
• Operating mechanism: Rotary, red/yellow
• Auxiliary contacts: 1 NO + 1 NC
• Degree of protection (front): IP65
• Ambient operating temperature: -25 to +55 °C
• Electrical endurance: 100,000 operating cycles
• Mechanical endurance: 100,000 operating cycles
• Product series: SENTRON 3LD2
• Short-circuit current rating (SCCR): 25 kA (with fuse)
• Rated short-time withstand current (Icw): 0.5 kA / 1 s

Final note

The Siemens 3LD2130-0TK13 delivers dependable load isolation with a compact footprint, making it a practical choice for panel builders and maintenance professionals.