Siemens Load disconnector 3LD3, main switch 3-pole, 40A

Product Overview The Siemens 3LD3348-0TK53 is a professional load disconnector designed for main switch applications in industrial and commercial electrical installations. This 3-pole load disconnector provides reliable switching capabilities with a 40A current rating and features door coupling functionality for enhanced safety.

Key Features

• Main Switch Function: 3-pole load disconnector for reliable electrical switching
• 40A Current Rating: Continuous current capacity (Iu) of 40A
• Rated Operating Capacity: 18.5 kW at AC-23 A at 400V
• Floor Mounting Design: Suitable for floor-mounted installations
• Door Coupling: Basic switch with integrated door coupling for safety
• Central Hole Mounting: 22.5mm central hole mounting configuration
• Visual Indicators: Red/yellow rotary actuator for clear operational status
• Compact Design: 66 x 66 mm footprint

Technical Specifications

• SKU: 3LD3348-0TK53
• Poles: 3-pole configuration
• Continuous Current (Iu): 40 A
• Rated Operating Capacity: 18.5 kW at AC-23 A at 400V
• Mounting Type: Floor mounting with central hole mounting (22.5mm)
• Actuator: Rotary actuator, red/yellow
• Dimensions: 66 x 66 mm
• Net Weight: 0.348 kg
• Packaging Dimensions: 68 x 83 x 420 mm
• Country of Origin: Germany

Applications Ideal for main switch applications in electrical distribution panels, industrial control systems, and commercial installations. Perfect for applications requiring reliable load disconnection with door coupling safety features, including manufacturing facilities, processing plants, and building electrical systems.

Quality & Compliance

• RoHS Compliant: Meets substance restriction requirements since September 2006
• WEEE Compliant: Environmentally responsible disposal
• Standard Lead Time: 3 days ex-works
• Product Lifecycle: Active product with ongoing support
• Product Class: Return restricted - contact Siemens partner for returns

Download existing graphical data for this product:

• Technical Data Sheet (PDF): Download PDF Datasheet
• Product Information & Support: View Support Documentation
• Original Product Page: Siemens Industry Mall