Siemens Switch disconnector, 6-pole, 63A max current, 63A fuse current Part number 3LD2566-3VB53

Product Overview

The Siemens 3LD2566-3VB53 is a SENTRON 3LD series switch-disconnector / emergency-off switch designed for six-pole installation. With a rated operational current of up to 63 A and an operating power of 22 kW at 400 V AC (AC-23 A), this unit is ideal for use as a main switch, emergency stop device or safety switch in low-voltage industrial installations. It features a red/yellow rotary operating mechanism mounted in a moulded-plastic enclosure for metric cable glands and supports IP65 front protection for demanding environments.

Key Features

• Six-pole switch-disconnector / emergency-off switch from the Siemens SENTRON 3LD range
• Rated current (Iu): 63 A
• Rated operating power: 22 kW at 400 V AC (AC-23 A) for six-pole loading
• Red/yellow short rotary knob operating mechanism suitable for emergency stop operation
• Moulded-plastic enclosure for metric cable gland entries, designed for robust installation
• High protection class: IP65 (front side) for suitable usage in harsh or wash-down environments
• Designed for fixed mounting in switchboards or industrial enclosures

Technical Specifications

• Product Series: SENTRON 3LD switch-disconnector
• Article Number: 3LD2566-3VB53
• Number of Poles: 6 P
• Rated Operational Current (Iu): 63 A
• Rated Operating Power: 22 kW at 400 V AC (AC-23 A)
• Enclosure / Mounting: Moulded plastic enclosure for metric cable glands, fixed mounting
• Operating Voltage (Ui): Up to 690 V rated insulation voltage
• Surge Voltage Resistance: 6 kV
• Mechanical Service Life: Approximately 100,000 switching operations
• Electrical Endurance: 6,000 cycles at AC-23 A / 690 V
• Width × Height × Depth: 212 mm × 302 mm × 181 mm
• Protection Class (Front): IP65

Compliance & Certifications

• Designed and manufactured by Siemens to meet standards for low-voltage switchgear and emergency-off devices
• Complies with IEC/EN 60947 series for switch-disconnectors
• Suitable for emergency stop (E-Stop) usage and main switch applications within industrial switchboards

Applications

Ideal for use in industrial motor control centres, power distribution switchboards, emergency-off safety circuits, and installation environments requiring a six-pole disconnect combined with emergency stop capability. Commonly applied in manufacturing plants, infrastructure facilities and automation control cabinets where reliable switching, operator safety and protection against dust or wash-down conditions are required.