Siemens Sentron Switch disconnector 3LD, EMG off switch, 3- pole, 25A Part number 3LD2164-1GP53

Product Overview

The Siemens 3LD2164-1GP53 is a 3-pole switch-disconnector / emergency-stop switch from the SENTRON 3LD series, rated at 25 A nominal current. It is designed for robust industrial isolation, manual switching and emergency stop functions, with a high degree of protection (IP65) and a compact enclosure ideal for demanding environments.

Key Features

• 3-pole design with rated current of 25 A and rated insulation voltage 690 V
• Rated operational power up to 9.5 kW at 400 V AC for AC-23A duty category
• Moulded-plastic enclosure suitable for direct front-panel or surface mounting with cable gland interfaces
• Emergency-stop compatible rotary red/yellow knob mechanism for secure manual disconnection or emergency isolation
• Includes 1 normally-closed (NC) and 1 normally-open (NO) auxiliary contact for signalling or interlocking functions
• Lockable OFF position – supports padlock hasp thickness 4-8 mm for safe maintenance

Technical Specifications

• Product Series: Siemens SENTRON 3LD Switch-Disconnectors
• Article Number: 3LD2164-1GP53
• Number of Poles: 3
• Rated Insulation Voltage (Ui): 690 V
• Rated Impulse Withstand Voltage (Uimp): 6 kV
• Rated Operational Current (AC-21/AC-23A): 25 A (AC-21A at 400 V) / 20 A (AC-23A at 400 V)
• Rated Operational Power (AC-23A): 9.5 kW at 400 V
• Auxiliary Contacts: 1 NC + 1 NO; continuous current rating 10 A at AC up to 500 V
• Protection Class (Front): IP65
• Mechanical Service Life (Typical): 100,000 operations
• Electrical Endurance (AC-23A, 690 V): 6,000 switching cycles
• Dimensions (H × W × D): 152 mm × 100 mm × 117 mm
• Net Weight (Approx.): 0.419 kg
• Mounting Type: Fixed mount, central attachment method
• Locking Capability: OFF position lockable with up to 2 padlocks (hasp thickness 4-8 mm)

Compliance & Certifications

• Designed to meet IEC / EN standards for switch-disconnectors and emergency stop switches
• Manufactured under Siemens industrial product standards for low-voltage power distribution and control equipment
• Complies with RoHS and other relevant environmental directives

Applications

The 3LD2164-1GP53 is ideal for use in industrial power distribution, motor control centres, switch-gear and automation systems where manual disconnection, emergency OFF or maintenance isolation is required. Its high current rating, lockable mechanism and front protection the IP65 class make it suitable for harsh operating conditions and heavy-duty industrial environments.