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3 pin socket outlets have current rating of
6 A
16 A
32 A
A and B both
A and B both
In Indian electrical standards (BIS), 3-pin socket outlets are manufactured in two standard current ratings, 6 A and 16 A, to accommodate different power requirements for household appliances. Small appliances like fans and table lamps use the 6 A socket, while high-wattage appliances like air conditioners and heaters use the 16 A socket.
In Indian electrical standards (BIS), 3-pin socket outlets are manufactured in two standard current ratings, 6 A and 16 A, to accommodate different power requirements for household appliances. Small appliances like fans and table lamps use the 6 A socket, while high-wattage appliances like air conditioners and heaters use the 16 A socket.
P=VтЛЕIтЛЕcos╧Х тАФ Relation between power, voltage, and current
IratedтАЛтЙеIloadтАЛ тАФ Safety criterion for electrical installation
The current rating of a socket is determined by its physical pin geometry and the cross-sectional area of the conductive contact material. The 6 A socket is designed for small domestic loads, whereas the 16 A socket provides a larger surface area for contacts and allows for thicker gauge wiring to safely carry higher currents (I=Vcos╧ХPтАЛ) without overheating.
6 A outlets are used for light electrical circuits (e.g., lighting, fans).
16 A outlets are reserved for power circuits (e.g., AC units, refrigerators).
Both ratings are defined as per IS 1293 standards.
The 3rd pin (Earth) is thicker/longer in some designs to ensure it connects first for safety.
Prevents overheating by matching socket capacity to load
Standardization allows for plug-socket interoperability across India
Incorrect usage (using 16 A appliance on 6 A socket) causes fire hazards
Requires separate circuit wiring for power sockets
Residential electrification
Commercial office power distribution
Industrial control panels
| Feature | Light Load | Power Load |
|---|---|---|
Application | 6 A | 16 A |
Standard household electrical installations often use a distribution of 5 A/6 A and 15 A/16 A outlets.
Option C is technically a rating, but typically for specialized industrial plugs/sockets, not standard 3-pin domestic outlets.
D is correct тАФ Indian domestic 3-pin socket outlets are standardized at 6 A and 16 A to handle different categories of electrical appliances.
Always remember that 'Power' sockets are for high-current heating/cooling appliances (16 A), while 'Light' sockets are for general consumption (6 A).