3VA9211-0WF30

What type of component is this?

This component is an extended three-pole terminal cover from the Siemens SENTRON range. It is designed as an accessory for compatible 3VA12 moulded-case circuit breakers.

What is the main purpose of the terminal cover?

The cover encloses the circuit breaker's terminal area, helping to reduce accidental contact with exposed connections and providing additional physical separation around the three phases.

Which circuit breakers is this accessory designed to fit?

The 3VA9211-0WF30 is intended for compatible Siemens 3VA12 three-pole circuit breakers, including 3VA12 devices in the 160–250 A frame range. The complete circuit breaker reference and connection arrangement should be checked before installation.

Is this suitable for a three-pole or four-pole circuit breaker?

This version is specifically designed for a three-pole circuit breaker. A separate four-pole terminal-cover variant is required for compatible four-pole configurations.

What does an extended terminal cover mean?

An extended terminal cover projects further beyond the terminal area than a short cover. This provides greater coverage around cables, terminals or extended connections where the installation layout requires additional enclosure.

Is this component a circuit breaker?

No. It is a passive circuit breaker accessory and does not provide switching, overload protection or short-circuit protection. Those functions are provided by the compatible 3VA12 circuit breaker.

How many terminal covers are supplied as one unit?

The Siemens product data identifies this item as one extended three-pole terminal cover per unit.

Can this cover be used with any Siemens 3VA circuit breaker?

No. Terminal covers are selected according to the circuit breaker family, frame size and pole configuration. This model is associated with compatible 3VA12 three-pole devices and should not be assumed to fit other 3VA frames.

Where is the cover fitted?

It is mounted over the terminal connection area of the compatible circuit breaker. Depending on the panel design and connection arrangement, a cover may be required at the incoming or outgoing terminal side.

Does the cover carry electrical current?

No. The cover is an insulating mechanical accessory and is not part of the circuit's current-carrying path.

What should be checked before installation?

Confirm that the circuit breaker is a compatible 3VA12 three-pole model, verify the frame size and terminal arrangement, and ensure there is sufficient enclosure space for the extended cover. Installation should take place only after the equipment has been properly isolated.

Is this accessory suitable for panel-building applications?

Yes. It is commonly used with compatible 3VA12 circuit breakers in low-voltage distribution boards, switchboards, control panels and industrial power-distribution assemblies.

What is the applicable commodity classification?

The recorded commodity code is 853890, which covers parts suitable for use principally with electrical switching or protection equipment classified under heading 8535, 8536 or 8537.