Over 800,000 products available

Siemens, SENTRON, 3VA5 Molded Case Circuit Breaker 3-Pole 400A, Breaking Capacity 35 kA, Fixed

View all MCCBs

Subtotal (1 unit)*

£1,263.92

(exc. VAT)

£1,516.70

(inc. VAT)

Add to Basket
Select or type quantity
Stocked by manufacturer
  • Ready to ship from 02 June 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
1 +£1,263.92

*price indicative

RS Stock No.:
257-328
Mfr. Part No.:
3VA5340-5EF31-0AA0
Brand:
Siemens
Find similar products by selecting one or more attributes.
Select all

Brand

Siemens

Range

SENTRON

Product Type

Molded Case Circuit Breaker

Series

3VA5

Number of Poles

3

Current Rating

400A

Breaking Capacity

35kA

Rated AC Voltage

690V ac

Mount Type

Fixed

Rated DC Voltage

500V dc

Terminal Type

Without

Depth

110mm

Height

248mm

Width

138mm

Standards/Approvals

ABS, CCC, CE, EAC, RCM, RMRS, UKCA, UL, VDE

Tripping Mechanism

Thermal Magnetic

Tripping Characteristics

Type M

COO (Country of Origin):
CZ

Siemens 3VA5 Series Molded Case Circuit Breaker, 400A Current Rating, 690V AC Rated AC Voltage - 3VA5340-5EF31-0AA0


This moulded case circuit-breaker provides overcurrent protection for three-phase systems in industrial and commercial installations. Designed for fixed mounting, it performs interruption and fault-limiting duties across alternating and direct voltage networks commonly found in automation, electrical and mechanical environments.

Features and Benefits:


• 400A rated current for high-load circuit protection
• 35 kA interrupting capability for severe fault clearing
• Thermal-magnetic trip unit offering adjustable overload and short-circuit response
• 3-pole configuration enabling simultaneous disconnection of all phases
• Rated to 690V AC for broad industrial supply compatibility
• 500V DC rating supporting DC distribution applications

Applications


• Suitable for distribution panels in manufacturing plants
• Ideal for motor control and protection in automation systems
• Used with switchboards in large commercial buildings
• Can be used for DC-fed equipment protection in battery-backed systems

What mounting arrangement is required for installation?


It is intended for fixed installation and must be secured to a panel or enclosure designed to accept fixed-mount MCCBs.

How many poles are switched during a trip event?


All three poles operate together so that phase conductors are disconnected simultaneously upon tripping.

What Terminal style does it use for conductor connection?


The unit is supplied without integrated Terminal accessories, allowing use with customer-selected connection hardware.

Related links