Miniature Circuit Breakers VMtec "Mini" 0,5-125 А

Salient Features

• VMtec "Mini" 0,5-125 А series circuit breaker is used in lighting distribution system or motor distribution system for protecting overload and short-circuit in the system.
• The product novel in structure, light in weight, reliable and excellent in performance.
• It has high breaking capacity, can trip quickly and its installation uses with guide, its case and items are adopted with high fire-resistant and shockproof plastic.
• The product, with long life, is mainly used in AC 50/60Hz single-pole 240V or two, three, four-pole 415V circuit for overload and short-circuit protection as well as for unfrequent on-and-off switching electric equipment and lighting circuit in normal case.
• This product conform with GB10963, IEC60898, BS3871.

Тechnical Data

Specifications		VMMB			Isolator
Type		'B'	'C	'D'
Standard Conformity		IEC 60898:95 IS 8828:96			IEC 60947-3 IS 13947-3
Rated Current (In)		6-63A	0.5-125A	0.5-63A	25-125A
Rated Voltage AC (Ue)		240/415V			240/415V
Utilization Category					AC22A
Rated Frequency Hz		50Hz			50Hz
No. of Poles (Execution)		1P, 1P+N, 2P, 3P, 3P+N&4P			1P, 2P, 3P&4P
Rated Short Circuit Breaking Capacity		10kA	10kA	10kA
Rated Insulation Voltage (Ui)		660V			660V
Magnetic Release Setting		(3-5)ln	(5-10)ln	(10-20)ln
Rated Impulse Voltage (Uimp)		6kV			6kV
Electrical/Mechanical Life	<32A	30,000			30,000
	>32A	10,000			10,000
Ambient Temperature		-5°C to +55°C			-5°C to +55°C
Energy Limiting Class		ELC3
Mounting		Clip on Din rail (35x7.5 mm)mm)			Clip on Din rail (35x7.5 mm)
Line Terminal Capacity		35 mm2			35 mm2
Degree of Protection		IP 20			IP 20
Resistance to Shock		40mm free fall			40mm free fall

VMMB -DC
Circuit Breakers for DC application are engineered to fulfill tough arc quenching conditions. DC VVMB incorporates built in magnet to direct the arc into the arc quenching chamber.

Standard Conformity	IEC 60947-2 & IS 13947-2
Current Rating	0.5-63A
No. of Poles	1P&2P
Voltage Rating	220V (max.)
Short Circuit Breaking Capacity	4kA

Constructional

Housing

VMtec VMMBs are made up of engineered thermo plastic for self lubrication and critical performance. The housing and other moulded components are fire retardant having high melting point, low water absorption and high dielectric strength therefore enabling it to withstand high temperature.

Operating Mechanism

VMtec Circuit Breakers are based on Thermal Magnetic technology. The protection is ensured by combining a temperature receptive mechanism (bimetal) and a current sensitive electromagnetic device. The thermal operation provides protection from normal overload and the electro-magnetic device against large overloads and short circuits.

Superior Contact Mechanism

The mechanism comprises of fixed and moving contacts made up of silver graphite for surety, extended life span and anti-weld properties. These contacts have low contact resistance resulting in reduced voltage drop and low watt loss commensurating to energy savings.

High Tech Arc Blower

Protects from hazards of overloads and short-circuits. The arc under the influence of magnetic field is moved into the arc chute where it is quickly extinguished and quenched.

Integrated label channel holders

Easy identification of circuits irrespective of position on the Distribution Board. Enhanced safety during maintenance.

Description	Type «B»	Type «C»	Type «D»
Single Pole	6/10/16/20/25/32/40/63	0.5/1/2/3/4/5 6/10/16/20/25/32/40/63 80/100/125	0.5/1/2/3/4/5 6/10/16/20/25/32/40/63
Single Pole + Neutral	6/10/16/20/25/32/40/63	0.5/1/2/3/4/5 6/10/16/20/25/32/40/63	0.5/1/2/3/4/5 6/10/16/20/25/32/40/63
Double Pole	6/10/16/20/25/32/40/63	0.5/1/2/3/4/5 6/10/16/20/25/32/40/63 80/100/125	0.5/1/2/3/4/5 6/10/16/20/25/32/40/63
Three Pole Three Pole + Neutral	6/10/16/20/25/32/40/63	0.5/1/2/3/4/5 6/10/16/20/25/32/40/63 80/100/125	0.5/1/2/3/4/5 6/10/16/20/25/32/40/63
Four Pole	6/10/16/20/25/32/40/63	0.5/1/2/3/4/5 6/10/16/20/25/32/40/63 80/100/125	0.5/1/2/3/4/5 6/10/16/20/25/32/40/63

Tripping Characteristics

Type "B"

Type "C"

Type "D"

Installation Dimensions

Type "B", "C", "D" (0.5-63А) / Isolator(25-125А)

Type "B", "C", "D" (80-125А)