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Siemens 3VA1220-4EF42-0AA0 4-Pole 200A Circuit Breaker

Siemens 3VA1220-4EF42-0AA0 4-pole IEC frame circuit breaker.

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ManufacturerSiemens
Part number3VA1220-4EF42-0AA0
Type Circuit Breaker
Series 3VA1 IEC Frame
Frame Size 250
Poles 4
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IEC frame 250 4-pole design 36kA breaking capacity Adjustable overload protection (140-200A) Flexible short-circuit protection (5-10x In) Unprotected N conductor

The Siemens 3VA1220-4EF42-0AA0 is a 3VA1 IEC frame circuit breaker designed for robust power distribution and protection. This 4-pole unit features a high rated current of 200A and a breaking capacity of 36 kA at 415V. It is equipped with the TM240 ATAM trip unit for line protection, offering adjustable overload protection from 140A to 200A and flexible short-circuit protection ranging from 5 to 10 times the rated current (Ii). The N conductor is unprotected, and it includes a nut keeper kit.

This circuit breaker is suitable for main feeders, large distribution panels, and heavy-duty industrial applications where reliable protection for high current loads is necessary. Industries such as utilities, large manufacturing plants, and data centers can utilize its capabilities.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3VA1220-4EF42-0AA0. We provide quality surplus automation components to help you maintain your critical infrastructure.

TypeCircuit Breaker
Series3VA1 IEC Frame
Frame Size250
Poles4
Rated Current (In)200 A
Overload Protection (Ir)140-200 A
Short-Circuit Protection (Ii)5-10 x In
Breaking Capacity (Icu)36 kA @ 415 V
Protection TypeTM240, ATAM
N ConductorUnprotected
ConnectionNut keeper kit
Main feeders
High current distribution
Industrial facilities
Utilities
Data centers
Large manufacturing plants
Power distribution
Industrial control panels Large power distribution boards Main feeders Electrical distribution networks
Siemens 3VA1 200A breaker 3VA1220 IEC circuit breaker Siemens 36kA 4-pole 200A breaker
Suitable for replacing or upgrading main feeder breakers and high-current distribution protection in industrial electrical systems.
Expert tip
The ATAM trip unit provides reliable thermal overload and adjustable magnetic trip for industrial applications, offering a good balance of protection and operational flexibility.
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What is the function of the unprotected N conductor on the Siemens 3VA1220-4EF42-0AA0?
The Siemens 3VA1220-4EF42-0AA0 features an unprotected N conductor, which is important in 4-pole systems where the neutral conductor does not require overcurrent protection but needs to be switched. This is common in certain industrial power distribution configurations.