Siemens Switch disconnector, SD100, 3-pole, 250A Part number 3VA1225-1AA32-0AA0

Product Overview

The Siemens 3VA1225-1AA32-0AA0 is a SENTRON 3VA1 SD100 switch disconnector designed for reliable manual isolation and switching in low-voltage distribution systems. This 3-pole device is rated at 250 A and provides safe, visible isolation for electrical circuits, ensuring operator protection and compliance with industrial switching requirements. Compact and robust, it is ideal for use as a main or maintenance switch in panel installations.

Key Features

• 3-pole switch disconnector from the SENTRON 3VA1 SD100 range
• Rated operational current: 250 A (at 40 °C)
• Manual ON/OFF actuation with clear switch position indication
• Front-mounted toggle handle for straightforward operation
• Designed for use as a main switch, maintenance isolator or load disconnector
• Compact frame size (IEC Frame 250) for efficient panel integration

Technical Specifications

• Product Series: SENTRON 3VA1 SD100
• Article Number: 3VA1225-1AA32-0AA0
• Configuration: 3-pole switch disconnector
• Rated Operational Current (In): 250 A (at 40 °C)
• Rated Operational Voltage (Ue): Up to 690 V AC
• Insulation Voltage (Ui): 800 V
• Short-time Withstand Current (Icw): 3 kA (0.5 s)
• Power Loss: Approx. 57 W
• Protection Class (front): IP40
• Ambient Operating Temperature: –25 °C to +70 °C
• Mounting: Fixed installation with front toggle operation

Compliance & Certifications

• Complies with IEC/EN 60947-3 standards for low-voltage switch-disconnectors
• Designed and manufactured by Siemens AG for industrial and commercial power systems
• Meets international safety and performance requirements for isolation and disconnection

Applications

Ideal for use as a main switch or maintenance disconnector in low-voltage distribution boards, control panels and machinery switchgear. Suitable for isolation of feeders, panels and loads in manufacturing plants, infrastructure facilities and commercial installations where dependable manual circuit disconnection is required.