Description
2.1 Overview - applications and portfolio
3VA molded case circuit breakers with IEC certificate
Manual, 03/2019, A5E03603177010-03
17
3VA1 molded case circuit breakers
The 3VA1 molded case circuit breakers reliably perform all the tasks required for line
protection.
The key features of the 3VA1 range are:
● Compact design
● 1 and 2-pole versions in size 160 A; 3 and 4-pole versions in sizes 100 A, 160 A, 250 A,
400 A and 630 A
● Breaking capacity of 16 kA ... 70 kA at 415 V or 110 kA, (in sizes 400 A and 630 A), 3-
pole or 4-pole breakers and 36 kA at 240 V, 1-pole breakers (dependent on size)
● Fixed-mounted, plug-in version
● Thermal-magnetic trip units
● AC/DC applications
● No derating up to +50 °C
● Modular and easy-to-fit internal accessories with diverse functions
● Uniform accessories platform across all 3VA molded case circuit breakers
Thanks to a mounting depth of 70 mm and a cover size of 45 mm, the 3VA1 molded case
circuit breakers of sizes 100 A, 160 A and 250 A are optimized for installation in distribution
boards, where they are used for protecting cables and lines. A wide range of accessories is
also available for these applications, such as adapters for installation on DIN rails, as well as
residual current devices (RCD310 and RCD510) and motor operators (MO310) that can be
side mounted.
Thermal-magnetic trip units
The 3VA1 molded case circuit breakers have a thermal-magnetic trip unit with overload and
short-circuit protection. This has been developed for implementing economical, cost-efficient
installations up to 630 A. It is suitable for use in three-phase networks, AC networks, 400 Hz
applications and with DC currents.
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