11KV Indoor VCB

The 11KV Indoor VCB from Arpan Power Projects is a VCB (vacuum circuit breaker) for 11 kV switchgear installed inside a building. It opens and closes the circuit under normal load and interrupts the current when a fault occurs, so the cables, transformers and motors behind it stay protected.

11KV Indoor VCB at a Glance

• Works on 11 kV networks, which are typically served by 12 kV class equipment.
• Installed inside a switchgear panel in a switch room.
• Interrupts the arc inside a sealed vacuum chamber, so there is no oil to handle.
• Acts on a trip signal from a protection relay.
• Needs less routine maintenance than oil-based breakers.

Where Each 11KV Indoor VCB Fits in Your Panel Line-Up

• Incomer: receives supply from the utility or transformer and protects the whole board.
• Outgoing feeder: sends power to a building, a plant section or another panel.
• Transformer feeder: protects the distribution transformer behind it.
• Motor feeder: switches and protects large 11 kV motors.
• Capacitor feeder: switches capacitor banks used for power factor correction.

Planning the Switch Room for an 11KV Indoor VCB

1. Confirm that your system voltage is 11 kV and check the datasheet for the voltage class of the unit.
2. Decide how cables will enter, from below or from above.
3. Leave enough front space to operate the breaker and to take it out safely.
4. Plan ventilation and earthing with your electrical consultant.
5. Keep the room clean and dry, since indoor equipment is not built for rain or heavy dust.

Details to Share for an 11KV Indoor VCB Quotation

• Rated current and fault level of your network.
• Number of incomer and outgoing feeders.
• Fixed or withdrawable preference.
• Protection, metering and SCADA requirements.
• Switch room size and site location.

Our team will recommend a suitable configuration based on these details.

Why Choose Arpan Power Projects

We combine HT switchgear with practical technical guidance, from selecting the breaker to supporting you through commissioning. Our manufacturing unit is at Khera Kalan Industrial Area, Delhi, and we supply across India. Read more about us or contact our team.

Equipment That Goes with Your 11KV Indoor VCB

Browse the complete HT panel and VCB range. For higher-voltage requirements, see our higher-voltage indoor breaker page. If your breaker will stand in an open yard, see our outdoor breaker page. For transformers, see our transformer range. For ring networks, see our ring main units, and for a complete package, our compact substation.

11KV Indoor VCB: Frequently Asked Questions

What does 11KV mean in an 11KV Indoor VCB?
It means the breaker is meant for an 11 kV system. Such systems are typically served by 12 kV class equipment, so check the datasheet for the exact rating.

Can an 11KV Indoor VCB protect a transformer?
Yes. It is commonly used on the transformer feeder, where it trips on a signal from the protection relay.

Does it need a protection relay?
Yes. The relay reads current through current transformers and tells the breaker when to trip.

Can I use it outdoors?
No. An indoor breaker is not built for rain, dust and sun. For an open yard, use an outdoor breaker.

Is it suitable for motor and capacitor feeders?
Yes, indoor breakers are used for these duties as well. Share your load details and we will confirm the right configuration.

Do you supply across India?
Yes. Arpan Power Projects supplies across India. Send your requirement through our contact page.