NA8 Air Circuit Breaker
● Frame size (A): 1600 , 2500, 4000, 7500
● Two kinds of breaking capacity: N, H (for 7500)
● Rated voltage Ue (VAC): 380/400/415, 690,
● Number of poles: 3 or 4 poles
● Mounting mode: draw-out type or fixed type
● Mode of connection: horizontal connection, vertical connection, mixed connection
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Related products
NB1L Residual Current Operated Circuit Breaker with Over-current Protection(Magnetic)
1.1 Function
Personnel and fire protection: Cable and line protection against overload and short-circuits.
1.2 Selection
Rated residual operating current
I∆n ≤30 mA: additional protection in the case of direct contact.
I∆n ≤300 mA: preventative fire protection in the case of ground fault currents.
Tripping class
AC class
Tripping is ensured for sinusoidal,alternating currents, whether they be quickly applied or slowly increase.
A class
Tripping is ensured for sinusoidal, alternating residual currents as well as for pulsed DC residual 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.
1.3 Approvals and certificates
Detailed information, please refer to Certificates Table on the last page.
CATALOG
NB1L Residual Current Operated Circuit Breaker with Over-current Protection PDF
NXB-40 Miniature Circuit Breaker
Rated current: 6A, 10A, 16A, 20A, 25A, 32A, 40A;
Rated voltage: 240V;
Frequency: 50Hz;
Electromagnetic release type: C, D;
Number of poles: 1P+N;
Mechanical life: 20000 cycles;
Electrical life: 10000 cycles;
Rated short-circuit breaking capacity(Icu): 4500A;
Short-circuit breaking capacity(Ics): 4500A;
Rated impulse withstand voltage(Uimp): 4kV;
CATALOG
NXB-40 Miniature Circuit Breaker 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
HDLRT0 Fuse for Distribution
HDLRT0 Fuse for Distribution
1.Electric ratings: AC50Hz, AC380V/DC400V, up to 1000A;
2.Application: for protection of power distribution apparatus against over-load and short circuit;
3.Standard: IEC 60269.
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
NL210 Residual Current Operated Circuit Breaker without Over-current Protection
1.1 Function
Control electric circuits.
Protect people against indirect contacts and additional protection against direct contacts.
Protect installations against fire hazard due to insulation faults.
Residual current circuit breakers are used in housing, tertiary sector and industry.
1.2 Selection
Detectable wave form
Type B
Tripping is ensured for sinusoidal AC residual currents pulsed DC residual currents, alternating residual sinusoidal currents up to 1000Hz, pulsating direct residual currents and for smooth direct residual currents, whether applied suddenly or increasing slowly.
Tripping sensitivity
30mA - additional protection against direct contact.
100mA - co-ordinated with the earth system according to the formula IΔn＜50/R, to provide protection against indirect contacts;
300mA - protection against indirect contacts, as well as fire hazard.
Tripping time
Instantaneous
It ensures instantaneous tripping (without time-delay).
1.3 Approvals and certificates CE, KEMA
1.4 Add-on devices
AX-5 auxiliary contacts
TC-1 terminal cover
CATALOG
NL210 Residual Current Operated Circuit Breaker without Over-current Protection PDF
