Havells, Philips & L&T Miniature Circuit Breakers (MCB)

Popular MCB Categories

Category	Havells 6A SP MCB	Philips 16A SP MCB	L&T Exora 6A SP MCB
Pole Type	SP	SP	SP
Tripping Curve	C Curve	B Curve	C Curve
Common Ratings	6A–63A	6A–63A	6A–63A
Breaking Capacity	10kA	10kA	10kA
Best Use	Home & office	Lighting loads	Industrial & residential
Mounting	DIN Rail	DIN Rail	DIN Rail

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Single Pole (SP) MCB

Used for lighting, fans, and socket circuits.

Havells SP MCB

Philips SP MCB

L&T Tiny Trip MCB

Available Ampere Ratings

• 6A
• 10A
• 16A
• 20A
• 25A
• 32A
• 40A
• 63A

Applications:

• 6A → Lights
• 16A → Power sockets
• 20A–32A → AC & geysers

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Double Pole (DP) MCB

Used for phase + neutral protection.

Havells DP MCB

L&T DP MCB

Philips 4 Pole 63A MCB

Available Ratings

• 6A
• 10A
• 16A
• 20A
• 32A
• 40A
• 63A

Best for:

• Water heaters
• Air conditioners
• Inverter supply

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Triple Pole (TP) MCB

Used in 3-phase industrial systems.

Havells TP MCB

Common Ratings

• 6A
• 10A
• 16A
• 20A
• 32A
• 40A
• 63A
• 100A

Applications:

• Motors
• Pumps
• Compressors
• Industrial panels

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MCB Curve Types

Curve Type	Trip Range	Application
B Curve	3–5× current	Homes, lighting
C Curve	5–10× current	ACs, pumps, motors
D Curve	10–20× current	Heavy industrial loads

Havells and L&T commonly offer B & C curves for domestic and industrial use. (Mahine Electricals)

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Recommended Amp Ratings by Usage

Appliance	Recommended MCB
LED Lights	6A SP
Fans	6A–10A SP
16A Socket	16A SP
Geyser	20A DP
1.5 Ton AC	20A–25A DP
Water Pump	32A TP
Industrial Motor	40A–100A TP

Electrical discussions also commonly associate 6A breakers with lighting and 16A/32A with higher-load socket and appliance circuits. (Reddit)

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Official Brands

• Havells
• Philips Lighting (Signify)
• L&T Electrical & Automation (Lauritz Knudsen)