Siemens Circuit breaker, 3-pole, 70kA, 415V, 400A Part number 3VA1340-6EF32-0AA0

Product Overview

The Siemens 3VA1340-6EF32-0AA0 is a 3-pole moulded-case circuit breaker from the SENTRON 3VA1 series, designed for line protection and high-performance overload and short-circuit applications. It is part of the IEC Frame 400 class, supports a rated current of up to 400 A, and provides breaking capacity class S with a maximum short-circuit current (Icu) of 36 kA at 415 V AC. Its robust construction and high-fault-capacity design make it suitable for industrial distribution panels, motor feeders and main switch applications in demanding environments.

Key Features

• 3-pole circuit breaker from the SENTRON 3VA1 (IEC Frame 400) series
• Rated current: up to 400 A at 40 °C
• Breaking capacity class S — maximum Icu of ~36 kA at 415 V AC
• Rated insulation voltage Ui: 800 V
• Rated operational voltage Ue up to 690 V AC; DC rating up to 500 V
• Compact yet high-capacity design for industrial power-distribution use
• Designed for frame size with high mechanical and electrical endurance (20,000 mechanical operations typical)

Technical Specifications

• Article Number: 3VA1340-6EF32-0AA0
• Series: Siemens SENTRON 3VA1
• Frame Size: IEC Frame 400 (In up to 400 A)
• Number of Poles: 3
• Rated Current (In) at 40 °C: 400 A
• Rated Insulation Voltage (Ui): 800 V
• Rated Operational Voltage (AC): up to 690 V
• Breaking Capacity (Icu) at 415 V AC: 36 kA
• Electrical Endurance: ~6,000 switching cycles at 380/415 V AC (AC-1)

Compliance & Certifications

• Designed and manufactured according to IEC / EN standards for low-voltage circuit-breakers
• High-fault-capacity class S breaker suitable for industrial and commercial switchgear

Applications

This circuit breaker is built for industrial power-distribution systems where high fault-current capability, reliability and compact installation are required. It is ideally used as a main switch, feeder breaker, or motor-starter protection device in factories, machine-tools, heavy power panels and demanding environment installations.