Siemens Circuit breaker, 3-pole, 65kA, 480V, 400A Part number 3VA6340-6HL31-0AA0

Product Overview

The Siemens 3VA6340-6HL31-0AA0 is a SENTRON molded-case circuit breaker designed for heavy-duty industrial protection. It belongs to the 3VA6 UL Frame 400 family and is rated for 400 A nominal current with high breaking capacity class H (65 kA at 480 V UL). It provides robust protection of circuits in demanding applications.

Key Features

• Three-pole fixed-mount molded-case circuit breaker (MCCB) • 400 A rating
• Breaking capacity class H • up to 65 kA at 480 V (UL) and up to 110 kA at 240 V according to IEC)
• Electronic trip unit ETU320 with LI overload protection functionality for adjustable protection settings
• Compact yet heavy-duty design: UL Frame 400 • supports adjustable overload (Ir = 160…400 A) and instantaneous (Ii = 600…4 000 A) settings

Technical Specifications

• Series: SENTRON 3VA6 molded-case circuit breaker
• Article Number: 3VA6340-6HL31-0AA0
• Number of Poles: 3
• Rated Insulation Voltage (Ui): 800 V
• Rated Operational Voltage (Ue): 690 V AC
• Nominal Current (Ie): 400 A (at 40 °C) – derated to 340 A at 70 °C
• Switching Capacity (IEC/EN 60947-2): • Icu: 240 V – 110 kA; 415 V – 85 kA; 690 V – 5 kA • Ics: same values • Icm: 240 V – 242 kA; 415 V – 187 kA
• Switching Capacity (UL 489): • 240 V – 100 kA; 480 V – 65 kA; 600 V – 22 kA
• Adjustable Overload (L-trip) Range: 150…400 A • Instantaneous (I-trip) Range: 600…4 000 A
• Mechanical Service Life: Typical 20 000 operations • Electrical Endurance (AC-1, 380/415 V): 6 000 operations • At 690 V: 4 200 operations
• Dimensions (H × W × D): 248 mm × 138 mm × 110 mm
• Net Weight (Approx.): 4.899 kg
• Protection Class (Front): IP40
• Ambient Operating Temperature (Min–Max): –25 °C to +70 °C; Storage: –40 °C to +80 °C

Compliance & Certifications

• Meets IEC/EN 60947-2 and UL 489 standards for circuit-breakers
• UL Listed (HACR type), CE marked, suitable for UL Frame 400 applications
• Designed under Siemens industrial-automation quality and reliability standards; RoHS-compliant

Applications

Ideal for use in industrial low-voltage distribution systems, switchboards, feeder cabinets and motor-control centres where high fault-current capability, adjustable protection settings and compact design are required. The 3VA6340-6HL31-0AA0 offers robust protection for circuits rated up to 400 A in demanding installations.