Siemens 3VA2340-5HL32-0AA0 Molded Case Circuit Breaker 3P 400A 55kA

The Siemens 3VA2340-5HL32-0AA0 is a SENTRON 3VA2 molded case circuit breaker designed for 3-pole line protection. Equipped with the ETU320 release unit, it delivers LI protection covering overload (L) and instantaneous short-circuit (I) functions, with a rated current of 400 A and an ultimate breaking capacity of 55 kA at 415 V.

Technical specifications:

• MLFB: 3VA2340-5HL32-0AA0
• Manufacturer: Siemens
• Product line: SENTRON
• Product type: Molded case circuit breaker
• Protection function: LI (overload + short-circuit), ETU320 release
• Number of poles: 3
• Rated current (In): 400 A
• Rated operating voltage (AC): 690 V
• Insulation voltage: 800 V
• Breaking capacity class: M
• Icu / Ics at 415 V: 55 kA; at 240 V: 85 kA; at 500 V: 36 kA; at 690 V: 5 kA
• Making capacity (Icm) at 415 V: 121 kA
• Overload setting range (Ir): 160 A - 400 A
• Overload delay (tr): 0.5 s - 17 s
• Short-circuit setting (Ii): 600 A - 4000 A (1.5...10 x In)
• Connection type: Nut keeper kit, front terminal
• Flat-bar terminal range: 20x1 mm to 35x10 mm
• IP rating: IP40 (front)
• Operating temperature: -25°C to +70°C
• Power loss: 96 W max; 32 W per pole at rated current
• Mechanical service life: 20,000 operating cycles
• Dimensions (WxHxD): 138 x 248 x 110 mm
• Weight: 4.619 kg

Features and benefits:

• Class M breaking capacity means Ics equals Icu at all rated voltages, delivering full short-circuit performance throughout service life.
• Independently adjustable Ir (160-400 A) and Ii (600-4000 A) settings enable precise coordination with upstream and downstream devices.
• Silver-plated connection surfaces on all terminals reduce contact resistance at high continuous current.
• Rated current stable at 400 A up to 50°C ambient, with defined derating values to 340 A at 70°C.
• Optional motor drive accessory supports remote or automated switching without replacing the breaker.

Applications:

• Line protection in main and sub-distribution boards operating at up to 690 V AC.
• Feeder protection for industrial machinery and high-current electrical loads up to 400 A.
• Busbar-fed switchgear assemblies requiring flat-bar connections up to 35x10 mm.
• Installations with high prospective fault currents requiring 55 kA breaking capacity at 415 V.

Compliant with IEC 60947. Part of the Siemens SENTRON range.

Also known as: Siemens 3VA2340-5HL32-0AA0, Siemens SENTRON 3VA2 MCCB 400A 3-pole, Siemens 3VA2 Frame 400 circuit breaker.