Siemens Load disconnector 3LD3, main switch, 3-pole, 25A, 9kW Part number 3LD3154-0TK53

Product Overview

The Siemens SENTRON 3LD3154-0TK53 is a 3-pole load disconnector and main switch from the 3LD3 series, designed for front panel mounting in a 66 × 66 mm cut-out. Rated at 25 A with a switching capacity of 9.0 kW (AC-23 A / 400 V), it provides reliable manual isolation and load disconnection for low-voltage systems. Its robust design and compact form make it ideal for industrial control panels and power distribution assemblies.

Key Features

• 3-pole load disconnector and main switch
• Rated operational current: 25 A
• Switching capacity: 9.0 kW at AC-23 A, 400 V
• Front panel mounting with a 66 × 66 mm cut-out
• Toggle drive mechanism for durable and reliable switching
• Compact and space-saving design for panel integration

Technical Specifications

• Product Series: Siemens SENTRON 3LD3 Load Disconnector
• Article Number: 3LD3154-0TK53
• Number of Poles: 3
• Rated Operational Current (Iu): 25 A
• Rated Operating Capacity: 9.0 kW at AC-23 A / 400 V
• Mounting Cut-out: 66 × 66 mm
• Protection Class: IP65 (front side when mounted correctly)
• Operating Frequency: 50 Hz
• Net Weight: Approx. 0.23 kg
• Packaging Dimensions: Approx. 79 mm × 85 mm × 110 mm

Compliance & Certifications

• Complies with IEC/EN standards for low-voltage switchgear
• Front face protection to IP65 for industrial use
• Manufactured in accordance with Siemens quality and safety standards
• RoHS compliant and environmentally safe

Applications

The 3LD3154-0TK53 is ideal for use as a main switch or isolator in low-voltage distribution systems, control panels, and machinery applications. It ensures safe manual disconnection of loads and provides reliable isolation for maintenance, installation, and service work in industrial and commercial environments.