Siemens Sentron Switch disconnector 3LD, main switch, floor mount, 3-pole, 160A Part number 3LD2318-0TK11

Product Overview

The Siemens 3LD2318-0TK11 is a 3-pole switch-disconnector from the SENTRON 3LD series, designed as a main switch (floor-mounting with door coupling) with a fixed mounting. It is rated for a continuous current of 160 A and supports high operating power (AC-23A duty up to 75 kW at 400 V). The unit features a knob-operated selector mechanism in black, and is lockable in the OFF position for safe isolation.

Key Features

• 3-pole switch-disconnector, suitable as main switch and safety switch
• Rated continuous current (Iu): 160 A
• High operating power: up to 75 kW at 400 V AC (AC-23A duty)
• Fixed mounting, floor mounting with door coupling, knob-operated mechanism
• Selector switch, black knob, 1 = ON / 0 = OFF display version
• Lockable in OFF position with up to 3 padlocks (hasp thickness 4-6 mm)
• Protection class front IP65; degree of protection NEMA 1, 3R, 4X, 12

Technical Specifications

• Product Series: SENTRON 3LD Switch-Disconnectors
• Article Number: 3LD2318-0TK11
• Number of Poles: 3
• Size of Switch Disconnector: Size 5
• Rated Insulation Voltage (Ui): 690 V
• Rated Surge Withstand Voltage (Uimp): 8 kV
• Rated Operating Power (AC-23A): 75 kW at 400 V; 45 kW at 690 V
• Rated Operational Current (AC-21) at 400 V: 160 A
• Electrical Endurance: Approx. 6 000 switching cycles at AC-23A/690 V
• Mechanical Service Life: Approx. 100 000 operations
• Dimensions (H × W × D): 169 mm × 112 mm × 94 mm
• Net Weight (Approx.): 2.75 kg

Compliance & Certifications

• Designed and manufactured under Siemens industrial switchgear quality standards
• Suitable for main switch, switch-disconnector, and safety switch functions
• RoHS-compliant and meets relevant IEC/EN standards for switch-disconnectors

Applications

The Siemens 3LD2318-0TK11 is ideally used in low-voltage power distribution systems as a main switch or isolator. Its high current rating, robust construction and front-mount operator make it suitable for industrial control panels, switchgear assemblies, emergency isolation points and large machinery installations where safe disconnection and high performance are required.