Description
100% Copper. Ask Any Competitor the Same Question.
4 KVA · 140–280 V · BA 414 C.
Bluebird's dedicated 1.5-ton AC stabilizer, built around the specification most buyers never think to check · 100% copper winding — not copper-clad, not aluminium — giving better conductivity, lower heat loss and longer working life than the aluminium-wound units it competes with on price · a wide 140 V to 280 V input range, holding output steady when the supply sags in the evening and spikes again at night · a 4 KVA rating matched to one air conditioner up to 1.5 ton · built by a manufacturer with over 30 years in automatic voltage stabilisers and transformers · made in India for Indian supply conditions · 2-year manufacturer warranty
140 V
to 280 Vwhat the supply actually does
This is what a stabilizer is for, and what happens without one is worth understanding. On a Delhi summer evening, when every AC on the street starts within the same hour, the incoming voltage sags — and a compressor asked to start on low voltage draws far more current than it was designed for, and runs hot. Late at night the load falls away and the voltage climbs the other way, stressing the control electronics. Both cause cumulative damage, and neither is visible until something fails. The BA 414 C regulates output across a 140 V to 280 V swing — a genuinely wide window, and exactly the range Indian supply moves through.
100% copper — the specification that separates two stabilizers at the same price
Most people compare stabilizers on KVA and price. The winding matters more, and it's precisely where cheaper units save money. A stabilizer is a transformer, and that transformer is wound with either copper or aluminium. Copper conducts better, so less energy is wasted as heat for the same load — and heat is what ages a transformer. An aluminium-wound unit sitting under a 1.5-ton AC through a Delhi May runs hotter, and hot windings degrade faster. Copper costs the manufacturer more, and that cost is the reason this lasts. Note the wording too: 100% copper, not "copper-clad" — worth asking about any stabilizer you're comparing this against.
Sizing it correctly — please check before ordering
4 KVA is rated for one air conditioner up to 1.5 ton, and both parts of that matter. One AC — this is not a whole-house stabilizer, and hanging a fridge or a second appliance off it will overload it. Up to 1.5 ton — a 2-ton machine needs a bigger unit. What actually determines correct sizing is the AC's rated current, its compressor starting load, and the AC manufacturer's own recommendation; many recent inverter ACs have wide built-in voltage tolerance and are specified as needing no external stabilizer at all. Send us your AC's make, model and tonnage and we'll confirm whether this is right — it takes a minute and avoids buying the wrong thing.
🎯 Right for
Not suitable for 2-ton ACs, more than one appliance, or use as a general household stabilizer.
⚙️ At a glance
Bluebird build stabilizers and transformers specifically — over three decades of it — rather than treating voltage regulation as a sideline to a general appliance range.
An AC compressor replacement costs many times this, and repeated low-voltage starting is one of the things that kills them.
Lower resistance means less waste heat under load — and heat is what shortens a transformer's working life.
This needs a qualified electrician, proper earthing and a correctly rated MCB — not a plug into the nearest socket.
Send us your AC's model and tonnage before ordering and we'll confirm this is the right rating for it.
| Brand / Model | Bluebird BA 414 C ✅ |
| Type | Automatic voltage stabilizer for air conditioner ✅ |
| Power Rating | 4 KVA ✅ |
| Input Voltage Range | 140–280 V ✅ |
| Suitable For | One air conditioner up to 1.5 ton ✅ |
| Winding | 100% copper ✅ |
| Application | Voltage regulation and AC protection ✅ |
| Installation | By a qualified electrician, with proper earthing and MCB ✅ |
| Country of Origin | Made in India 🇮🇳 ✅ |
| Warranty | 2 Years manufacturer warranty ✅ |
Why buy from Mahajan Electronics?
- 📐 We check stabilizer sizing against your AC
- 100% genuine Bluebird with warranty support
- 24-hour delivery across Delhi NCR
- GST invoice — save up to 18% on business purchases
- 45+ years of trust · rated 4.7 on Google
- Raja Garden · Jail Road · Dabri Mor
Order today. Delivered in 24 hours.
Bluebird BA 414 C · 4 KVA Voltage Stabilizer · 140–280 V Input · 100% Copper Winding · For One Air Conditioner up to 1.5 Ton · 2-Year Warranty · Made in India
Warranty as per Bluebird's terms and conditions — 2 years manufacturer warranty, subject to T&C; coverage of the transformer winding, relay and control components, regulation circuit, cabinet, cables and accessories, parts and labour, exclusions and the service process are subject to brand policy and the final invoice or warranty documentation. Regulation performance, supported input range, electrical loss, heating and noise depend on incoming voltage, load current, compressor starting current, AC type and model, wiring condition, earthing, socket and MCB rating, ambient temperature, ventilation, installation quality and maintenance. The 4 KVA rating and suitability for one AC up to 1.5 ton are general compatibility guidance: verify the connected AC's rated current, maximum input, starting load and the AC manufacturer's own stabilizer recommendation before purchase and installation. Do not connect multiple appliances or an incompatible load. A voltage stabilizer reduces risk from fluctuations within its specified range but cannot guarantee protection against every surge, lightning strike, short circuit, wiring fault, neutral failure or voltage outside that range. Installation and electrical connection must be carried out by a qualified electrician with proper earthing, wiring, MCB protection and ventilation clearance. Do not cover the unit or install it near water, heat, direct sunlight or flammable materials. Image for reference only; actual serial number, manufacturing date, cabinet design, colour, indicator layout, cable, plug, mounting method and accessories may vary by batch.
Made in India. Please Note: The image shown is for reference purposes only. Actual product details, including the serial number and manufacturing date, may vary.
