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Miniature Circuit Breakers are housed in injection moulded flame retardant, high strength thermo plastic material having high melting point, high dielectric strength and temperature with stand.Trip free Mechanism i.e. the breaker trips internally even if the operating knob is held in ON position.

Construction Feature:

The Tripping Mechanism is thermal magnetic type :
a. Magnetic Protection : When overload values exceed the value specified for different characteristic curves B&C, strong magnetic field is induced which results into instantaneous tripping of MCB.

b. Thermal Protection : Bimetal which deflects if the current is greater than the rated current and hence tripping the MCB.
Finger Protection : MCB's are finger protected to IP 20 as per IS/IEC 60898-1 the live current carrying parts cannot be touched accidentially.
Effective Arc Quenching : Arc produced of contacts is rapidly pushed magnetically into a 12 plates Arc chamber where it is broken down effectively & cooled.
Special Alloy Contact : The contacts are made out of special alloy which gives low contact resistance resulting in low voltage drop hence very less power consumption and temperature rise. These contacts have very excellent anti weld properties.
Dual Termination : The Incoming terminals are designed for termination of Busbar as well as cable individually or simultaneously. Terminals are suitable for cables upto 25 mm².
Padlocking Facility : Dolly can be padlocked in Off position for personal safety during maintenance ON positing for extremely critical loads
Current Limiting Design - Class 3 : Minimum let through energy fault condition due to ultra fast contact separation and rapid quenching of the arc. This rduces stress on connected loads and cables.
Bi-connect Termination Possible : Choice to use Busbar and/or cable in the same terminal, provides reliable termination.
Din Rail Mounting : Two stage snapping device for simple effortless and firm seating on 35 mm Din Rail, easy & efficient mounting.
Air circulation : When two poles are adjacent to each other, these channels form a tunnel resulting in effective air ciculation around individual poles.
Position dolly : clear indication of on/off the operational status of device.

H - 51 Udyog Nagar, Rohtak Road,
New Delhi - 110 041 ( India )

+91-011-44715123

newtechmcb@yahoo.com, mcbnewtech@gmail.com

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About NEWTECH SWITCHGEAR PVT LTD

NEWTECH was established in 1998 for manufacturing of Miniature Circuit Breaker, DB, Isolator, RCCB Main Switch etc.

To meet electrical distribution and supply needs of customers in the areas of residential, commercial and Industrial sectors.

NEWTECH has grown strength by strength in the field of design, development, manufacture, testing and supply of MCBs and allied products.

Rated Current In (A)	6	10	16	20	25	25	40	63
As per Indian Standard (W) IS.EC 60898	3	3	3.5	4.5	4.5	6	7.5	13
NEWTECH Series (W)	1.2	2.1	2.3	2.5	2.8	4	4.5	7.5

Rating	B & C TYPE MCB's
	6-32 A		40-63A
	As Per IS	NEWTECH	As Per IS	NEWTECH
1.13 I	Should not trip in 1 hour	Does not trip in 1 hour	Should not trip in 1 hour	Does not trip in 1 hour
1.45 I	Should trip in 1 hour	Trips in 30 Min.	Should trip in 1 hour	Trips in 30 Min.
1.9 I	Should trip in 1 hour	Trips in 30 Min.	Should trip in 1 hour	Trips in 30 Min.
2.55 I	Trips in 60 Sec.	Trips in 20 Sec.	Trips in 120 Sec.	Trips in 30 Sec.
3 I	"B" Curve Should not Trips in 0.1 Sec.	"B" Curve does not Trips in 0.1 Sec.	"B" Curve Should not Trips in 0.1 Sec.	"B" Curve Should not Trips in 0.1 Sec.
5 I	"B" Curve Should trips in 0.1 Sec. "C" Curve Should not Trips in 0.1 Sec.	"B" Curve trips in 0.04 Sec. "C" Curve does not Trips in 0.1 Sec.	"B" Curve trips in 0.1 Sec. "C" Curve Should not Trips in 0.1 Sec.	"B" Curve trips in 0.04 Sec. "C" Curve does not Trips in 0.1 Sec.
10 I	"C" Curve Should trips in 0.1 Sec.	"C" Curve trips in 0.04 Sec.	"C" Curve Should trips in 0.1 Sec.	"C" Curve trips in 0.04 Sec.

Standard	IS/IEC 60898-1
Type	B	C
Magnetic Release Setting	(3-5) In	(5-10) In
No. of Poles (Execution)	SP	SP, SP+N, DP TP, TP+N
Rated Current (In) A	6A to 63A
Rated Voltage (Ue)	SP SPN DP 240V TP TPN 415V
Rated Frequency (f) Hz	50Hz
Rated Short Circuit Breaking Capacity	10000 A
Service Short Circuti Breaking Capacity	7500 A
Energy Limitation	Class 3
Tripping Mechanism	Thermal & Magnetic Type
Normal Ambient Temperature	30°C
Power Loss	Much less than Standard Values
Rated Impulse Voltage	4KV
Dielectric Strength	2000V for 1 Minute
Protection Class	Ip20
Mounting	On DIN Rail (35mm x 7.5mm)
Connections	1sq.mm to 25sq. mm for Cu conductors
Housing	Moulded Frame Retardent Thermoplastic Material

Appliances	Capacity / Watt (Load) (240V~1ph)	Current Rating of MCB	Type of MCB
Air Conditioner	1.0 tonnes	10A*	"C" Series
	1.5 tonnes	10A*	"C" Series
	2.0 tonnes	20A*	"C" Series
Refrigerator	165 litres	1.5A*	"C" Series
Refrigerator	350 litres	3A*	"C" Series
Oven Cum Griller	4500W	25A	"B" Series
Oven Cum Griller	1750W	10A	"B" Series
Oven Only Hot Plate Only Room Heater	750W	6A	"B" Series
	2000W	10A	"B" Series
	1000W	6A	"B" Series
	2000W	10A	"B" Series
Washing Machine	300W	2A	"C" Series
Washing Machine (With Heater)	1300W	8A	"C" Series
Water Heater (Storage/Instant)	1000W	6A	"B" Series
	2000W	10A	"B" Series
	3000W	16A	"B" Series
	6000W	32A	"B" Series
Electric Iron	750W	6A	"B" Series
Electric Iron	1250W	8A	"B" Series
Auto Toaster (2 Slices)	1200W	8A	"B" Series
Electric Kettle	1500W	10A	"B" Series

Miniature Circuit Breaker (MCB)