Skip to content
Illustration: power distribution application setting
Trafovia/Products
Power distribution

Switchgear

Medium- and low-voltage assemblies organised around your circuit arrangement, fault duty and protection requirements.

Illustration · application setting
Technical overview

Start with the
right specification.

Use this selection reference to prepare your project brief.

Reference values are not a model datasheet. Availability, standards and test coverage require confirmation for the offered equipment.

Download project sheets ↓
Selection reference +
Ring main units11, 22, 33 kV; 630 A; 16 to 25 kA; SF6 or SF6-free
MV panels12, 24, 36 kV metal-clad withdrawable or air-insulated fixed
LV switchboardsUp to 6,300 A main busbar, forms 1 to 4, IEC 61439-1/-2
Breakers and relaysVacuum circuit breakers; protection relays from the brand your specification names
Project document package +
  • Model-specific datasheet and approved drawings
  • Applicable test reports and their coverage
  • Inspection, packing and delivery requirements
Manufacturing & quality →
FAQ

Switchgear questions buyers ask

SF6 or SF6-free ring main units?

Both exist. SF6 RMUs remain common in utility specifications in Africa and Asia; SF6-free designs (vacuum with dry air or solid insulation) are increasingly requested where regulations restrict SF6. Tell us which your specification requires; we quote the matching design and its type-test coverage.

Which internal arc classification should we specify?

IEC 62271-200 classifies accessibility (A for authorised personnel, B for public) and the sides tested (F, L, R), for example IAC AFLR 20 kA 1 s. The class depends on the room layout and who can approach the switchgear. Specify the class you need; we only offer designs whose report covers it.

Can you use the relay or breaker brand our utility specifies?

Usually yes. Many utilities name approved protection relay and breaker makers. We include the named brand in the offer and state any effect on price or lead time.

What do you need to quote a switchboard?

The single-line diagram, main busbar rating, short-circuit rating, form of separation, incomer type, outgoing circuits and metering. See LV switchboards for the reference specification.

Request a quotation

Send us your
requirement.

Ratings, quantities and destination are enough to start. Attach nothing here: we reply by email and ask for drawings or the tender schedule when needed.

Or email sales@trafovia.com. We reply within one working day (Beijing time).

We use your details only to answer this enquiry. See our privacy policy.

Project resources

Bring your next project
into focus.

Explore the equipment guide and prepare your requirements with our fillable project sheets.