THREE POLE NETURAL MCB / TPN MCB
Indotech Triple Pole Neutral MCB – A Miniature Circuit Breaker (MCB) is an automatically operated electrical switch used to protect low voltage electrical circuits from damage caused by excess current from an overload or short circuit. 3 Pole Neutral MCB are typically rated up to a current up to 125 A, do not have adjustable trip characteristics, and can be thermal or thermal-magnetic in operation. 3 Pole Neutral MCB, Triple pole with Neutral (TPN) MCB.
Construction and Features:
- State of the art design: Elegant appearance, cover and handle in arc shape for comfortable operation. Contact position indicating window (Clear ON-OFF indicator)
- Three level indications For ON, OFF & TRIP (Under Fault)
- Rated short circuit capacity: 10000A (10kA)
- Trip free mechanism
- High speed and high breaking capacity mechanism.
- Terminal block with safety shutter: It prevents wrong wiring & burning of terminals.
- High speed wiping contact structure.
- Bi-connect terminals at both sides give a choice of using either a busbar or cable to make the connection.
- Environment-Friendly, Meets the RoHS Compliance defined by the European Standards.
- Power loss values are much lower than the specified values of IS/IEC making it the most energy-efficient MCB.
- “INDOTECH ” Miniature Circuit Breakers, 63A 3 Pole with Neutral MCB
- ISI Marked.
- Smooth tripping.
- Heavy duty contacts to ensure longer life span.
- Low watt loss, thus energy saving.
- Mould made of high quality fire retardant material.
- Sufficient gap between the poles for better cooling of contacts.
- ON/OFF indication for safety.
TYPE OF MCB : TRIPLE POLE NEUTRAL MCB
SP : SINGLE POLE – 6A to 63A
SPN : SINGLE POLE WITH NEUTRAL – 6A to 63A
DP : DOUBLE POLE / 2 Pole MCB – 6A to 63A
TP : THREE POLE – 6A- 63A 3 Pole MCB
TPN : TRIPLE POLE WITH NEUTRAL – 6A to 63A
FP : FOUR POLE – 6A to 63A
TPN : TRIPLE POLE WITH NEUTRAL – 6A to 63A
FP : FOUR POLE – 6A to 63A
SPECIFICATION : 63A TPN
These breakers all have similar characteristics and are rated at certain levels of voltage and current.
- Rated voltage: As stated above, the rated voltage indicates what kind of circuits for which the breaker will be useful.
- Rated current: This is the number of amperes the breaker can handle before tripping.
- Shell rating current: This is the amount of current that the breaker can handle in totality. If there are multiple short circuit breakers within the shell, then each will have a rating less than the shell. The smaller breakers cannot total more than the shell rating current.
- Rated breaking capacity and ultimate rating capacity: The rated capacity is assigned by the manufacturer and is based on the current and voltage for which the breaker is rated. The ultimate breaking capacity is the highest amount of current that the breaker can stand and still be operational after breaking three times.
- Tripping capacity of breakers: These appear on a curve that shows how quickly a circuit breaker will trip when subjected to certain sudden increases in current. Usually, the rating is for double-pole and three-pole breakers, and the starting point for the trip is from the cold state.
| Test | Result |
| ACCURACY | In case of MCB, the zone which is facing abnormalities can be identified pretty quickly, as the faulty circuit trips immediately, turning it off for good. However, on the contrary, in case of a fuse the complete fuse wire needs to be checked by opening fuse grip for confirming the faulty zone. |
| RANGE | MCB it is fixed while in MCCB the rated current is an adjustable range instead of a fixed value. Standard rating of MCB is 6A, 10A, 13A, 16A, 20A, 25A, 32A, 40A, 50A, 63A, 100A for MCB |
| STANDARD | IS/IEC 60898-1:2008 DIN43-883 |
