FZN21
Application: for making and breaking of load current, over-load current and short-circuit current to control and protect the circuit and transformer, etc. in power distribution system.
Standards: IEC 60265-1, IEC 62271-105.
Features: 1.High breaking capacity.
2.Compact design and light in weight.
3.Reliable operation and long operation endurance
Related products
NB1-63G Miniature Circuit Breaker
1.1 Function
protection of circuits against short-circuit currentsprotection of circuits against overload currents,switch,isolation,
NB1-63G circuit-breakers are used in domestic installation,as well as in commercial and industry electrical distribution systems.
1.2 Selection
Technical data of the network at the point consideredshort-circuit current at the circuit-breaker installation point, which must always be less than the breaking capacity of this device,
Network normal voltage.
Tripping curves:
B curve (3-5In)
protection for people and big length cables in TN and IT systems.
C curve (5-10In)
protection for resistive and inductive loads with low inrus current.
CATALOG
NB1-63G Miniature Circuit Breaker PDF
NB3LEU Residual Current Operated Circuit Breaker with Over-current Protection
1.1 Selection
Rated residual operating current
I∆n = 30 mA: additional protection in the case of direct contact.
Tripping class
AC class – Tripping is ensured for sinusoidal, alternating currents, whether they be quickly applied or slowly increase.
Tripping curve
B curve (3-5 In) protection and control of the circuits against overloads and short-circuits; protection for people and big
length cables in TN and IT systems.
C curve (5-10 In) protection and control of the circuits against overloads and short-circuits; protection for resistive and inductive loads with low inrush current.
1.2 Approvals and certificates
CATALOG
NB3LEU Residual Current Operated Circuit Breaker with Over-current Protection PDF
NB3LE Residual Current Operated Circuit Breaker with Over-current Protection
Rated residual operating current
I∆n = 30 mA: additional protection in the case of direct contact.
Tripping class
AC class – Tripping is ensured for sinusoidal, alternating currents, whether they be quickly applied or slowly increase.
Tripping curve
B curve (3-5 In) protection and control of the circuits against overloads and short-circuits; protection for people and big length cables in TN and IT systems.
C curve (5-10 In) protection and control of the circuits against overloads and short-circuits; protection for resistive and inductive loads with low inrush current.
CATALOG
NB3LE Residual Current Operated Circuit Breaker with Over-current Protection PDF
NB1-63DC DC Miniature Circuit Breaker
1.1 Certificates: CCC,CE,CB,TUV;
1.2 Standard: IEC/EN 60947-2 ,RoHS;
1.3 Rated voltage up to 1000V, Rated current up to 63A;
1.4 Protection of circuits against overload currents;
1.5 Protection of circuits against short-circuit currents;
1.6 NB1-63 DC circuit-breakers are used incommunication systems and PV DC systems.
CATALOG
NB1-63DC DC Miniature Circuit Breaker PDF
NXB-63H Miniature Circuit Breaker
Rated current: 1A, 2A, 3A, 4A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A,;
Rated voltage: 240V ~ (1P, 1P+N), 415V ~ (2 ~ 4P, 3P+N);
Frequency: 50Hz;
Electromagnetic release type: B, C, D;
Number of poles: 1P, 1P+N, 2P, 3P, 3P+N, 4P;
Mechanical life: 20000 cycles;
Electrical life: 10000 cycles;
Rated short-circuit breaking capacity: 10000A;
Short-circuit breaking capacity: 7500A;
Rated impulse withstand voltage: 4kV;
CATALOG
NXB-63H Miniature circuit breaker PDF
NB7 Miniature Circuit Breaker
The NB7 series miniature circuit breaker is applicable to the circuit with an alternating current of 50Hz/60Hz, rated voltage of 240/415V, and rated current up to 63A for overload protection and short circuit protection, and also for not-frequent operational transformation in the circuit under normal condition.
This product can be applied to various places such as industrial, commercial, and tall buildings, and residential houses.
The product meets the standards of IEC60898-1.
NB7 Miniature Circuit Breaker PDF
NXB-125G Miniature Circuit Breaker
Rated current: 63, 80, 100(1P, 2P, 3P, 4P), 125(1P, 2P);
Rated voltage: 240V ~ (1P), 415V ~ (2P, 3P, 4P);
Frequency: 50Hz;
Electromagnetic release type: B, C, D;
Number of poles: 1P, 2P, 3P, 4P;
Mechanical life: 20000 cycles;
Electrical life: 6000 cycles (In≤100A); 4000 cycles (In＞100A);
Rated short-circuit breaking capacity(Icn): 10000A;
Short-circuit breaking capacity(Ics): 7500A;
Rated impulse withstand voltage(Uimp): 4kV;
CATALOG
NXB-125G Miniature Circuit Breaker PDF
