Siemens Load disconnector, main switch, 3-pole+N, 400V, 7.5kW, 23A Part number 3LD3050-0TL13

Product Overview

The Siemens 3LD3050-0TL13 is a 3-pole + N rated load disconnector and main switch from the 3LD3 series, designed for reliable isolation and switching of electrical loads up to 16 A. Engineered for front-plate mounting, it provides safe disconnection and serves as an ideal main switch for industrial panels, maintenance points, and emergency-stop functions.

Key Features

• 3-pole + N rated load disconnector / main switch with 16 A nominal current
• Rated operational capacity AC-23 A up to 7.5 kW at 400 V for motor switching
• Red/yellow rotary handle suitable for EMERGENCY-OFF applications
• Front-mount design with compact 114 mm mounting depth for control panels
• High ingress protection IP65 (front) for use in harsh industrial environments

Technical Specifications

• Product Series: Siemens SENTRON 3LD3 Switch Disconnector
• Article Number: 3LD3050-0TL13
• Number of Poles: 3 + N (rated)
• Rated Operational Current (Iu): 16 A (AC-21A / AC-23A category)
• Rated Operational Power (AC-23A): 7.5 kW at 400 V / 8 kW at 690 V
• Rated Insulation Voltage (Ui): 690 V
• Rated Impulse Withstand Voltage (Uimp): 6 kV
• Protection Class (Front): IP65
• Mechanical Service Life: ≈ 100 000 switching cycles
• Electrical Endurance: ≈ 6 000 switching cycles at AC-23A / 690 V
• Dimensions (H × W × D): 60 mm × 49 mm × 114 mm
• Net Weight (Approx.): 0.20 kg
• Mounting Type: Front-plate mounting (fixed mount)
• Lockable in OFF Position: Yes – up to 2 padlocks (4–6 mm hasp thickness)

Compliance & Certifications

• Complies with IEC / EN 60947-3 standards for switch-disconnectors
• Certified for use as main switch, switch-disconnector, emergency stop or maintenance isolation device
• Designed and manufactured under the Siemens SENTRON industrial quality system

Applications

The 3LD3050-0TL13 is ideal for low-voltage distribution systems, control panels and industrial machines where a compact, 3-pole + N rated main switch is required for safe isolation and maintenance. It is suited for motor circuit switching, supply disconnection and emergency-off applications in industrial and infrastructure installations.