Datasheet

P-038

Modular DIN Rail Products

1. General

NB1L Residual Current

Operated Circuit Breaker

with over-current protection

(Magnetic)

1.3 Approvals and certificates

Detailed information, please refer to Certificates Table

on the last page.

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.

RCBO

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RCBO Modular DIN Rail Products P-038 NB1L Residual Current Operated Circuit Breaker with over-current protection (Magnetic) 1. General 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.
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P-039 Modular DIN Rail Products RCBO 2. Technical data 2.1 Curves t(s) t(s) B Curve 10000 5000 1h 2000 1000 500 200 100 50 20 10 5 200 100 50 20 10 5 2 1 0.5 0.2 0.1 2 1 0.5 0.2 0.1 0.05 0.02 0.01 0.005 0.002 0.001 0.05 0.02 0.01 0.005 0.002 0.001 0.5 1 2 3 4 5 7 10 20 30 50 70100 200 C Curve 10000 5000 1h 2000 1000 500 I/In 0.5 1 2 3 4 5 7 10 20 30 50 70 100 200 I/In 2.
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RCBO Modular DIN Rail Products P-040 2.3 Temperature derating A The maximum permissible current in a circuit breaker depends on the ambient temperature where the circuit breaker is placed. Ambient temperature is the temperature inside the enclosure or switchboard in which the circuit breakers are installed. The reference temperature is 30℃ Temperature -10℃ 0℃ 10℃ 20℃ 30℃ 40℃ 50℃ 60℃ Temperature compensation coefficient of rated current 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 3.