P1MB1NC40 - MINIAT. CIRCUIT BREAKER 1P+N CURVE C 40A

P1MB1NC40 – MINIAT. CIRCUIT BREAKER 1P+N CURVE C 40A

Lovato P1MB1NC40 miniature circuit breaker with a 40 A rated current, Type C tripping characteristic, 1P+N configuration, two DIN module construction and 6 kA breaking capacity.

SKU: P1MB1NC40MPN: P1MB1NC40
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Why Choose the Lovato P1MB1NC40 Miniature Circuit Breaker?

The Lovato P1MB1NC40 is a robust miniature circuit breaker (MCB) designed to provide reliable protection against overloads and short circuits in low-voltage electrical installations. Part of the Lovato Electric P1MB series, it delivers dependable thermal-magnetic protection for commercial, industrial and OEM electrical systems.

Featuring a 40 A rated current, Type C tripping characteristic and a 6 kA short-circuit breaking capacity, the P1MB1NC40 is suitable for circuits supplying equipment with moderate inrush currents, including HVAC equipment, power distribution circuits, transformers and small motors.

Its 1P+N configuration provides overcurrent protection on the phase conductor whilst simultaneously switching the neutral conductor. The compact two DIN module design enables efficient installation on a standard 35 mm DIN rail, making it ideal for modern modular distribution boards and control panels.

Key Advantages

  • Reliable thermal-magnetic protection against overloads and short circuits.
  • 40 A rated current for higher-current distribution circuits.
  • Type C tripping characteristic accommodates moderate equipment starting currents.
  • 6 kA breaking capacity provides dependable fault-current interruption.
  • 1P+N configuration switches both phase and neutral conductors.
  • Energy-limiting class 3 reduces fault energy.
  • Compact two-module construction conserves panel space.
  • Simple installation onto a standard 35 mm DIN rail.

Key Features

  • Lovato Electric P1MB series.
  • 40 A rated current.
  • Type C tripping characteristic.
  • 1P+N pole configuration.
  • 6 kA short-circuit breaking capacity.
  • 230/400 V AC rated operational voltage.
  • 440 V rated insulation voltage (Ui).
  • 4 kV impulse withstand voltage (Uimp).
  • Thermal-magnetic operating mechanism.
  • DIN rail mounting with screw terminals.

Reliable Protection for High-Current Electrical Circuits

The Lovato P1MB1NC40 combines thermal and magnetic tripping technologies to protect electrical wiring and connected equipment. The thermal element responds to prolonged overload conditions, whilst the magnetic element rapidly disconnects the circuit during short-circuit faults, helping reduce equipment damage and electrical downtime.

Its Type C operating characteristic is ideal for circuits containing equipment with moderate inrush currents, including HVAC equipment, transformers, power supplies and small motors. The 1P+N configuration also provides convenient phase and neutral switching for improved circuit isolation.

Typical Applications

  • Commercial distribution boards.
  • Industrial control panels.
  • HVAC systems.
  • Power distribution circuits.
  • Small motors and inductive loads.
  • Control transformers and power supplies.
  • Automation systems.
  • Machine control and auxiliary circuits.

Technical Specifications

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Current 40 A
Phase Single Phase
Poles 1-pole + N
Device Type MCB
Trip Curve C curve
Breaking Capacity 6 kA
Manufacturer Lovato Electric
Series P1MB
Model P1MB1NC40
Product type Miniature circuit breaker
Number of poles 1P+N
Protected poles 1
Rated current 40 A
Tripping characteristic Type C
Rated operational voltage 230/400 V AC
Rated insulation voltage (Ui) 440 V
Rated impulse withstand voltage (Uimp) 4 kV
Rated frequency 50 / 60 Hz
Short-circuit breaking capacity 6 kA
Energy limiting class 3
Power dissipation per pole 3.84 W
Electrical endurance 10,000 operations
Mechanical endurance 20,000 operations
Operating temperature -40°C to +70°C
Storage temperature -40°C to +80°C
Maximum altitude 2,000 m
Mounting type 35 mm DIN rail
Number of DIN modules 2
Terminal tightening torque 1.8 to 2 Nm
Conductor size 1 to 35 mm²
Protection rating IP20
Dimensions (H × W × D) approx. 86.5 × 36 × 79.5 mm
Weight approx. 190 g
Standards IEC/EN 60898-1 and IEC/EN 60947-2
HS Code 85362010

Frequently Asked Questions

What is the Lovato P1MB1NC40 used for?

The P1MB1NC40 protects low-voltage electrical circuits against overloads and short circuits in commercial, industrial and automation applications.

What is the rated current of the P1MB1NC40?

The Lovato P1MB1NC40 has a rated current of 40 A.

What does the Type C tripping characteristic mean?

Type C miniature circuit breakers are designed for circuits with moderate inrush currents, making them suitable for transformers, HVAC equipment, lighting and small motors.

What is the short-circuit breaking capacity?

The P1MB1NC40 has a rated short-circuit breaking capacity of 6 kA.

How many DIN modules does the breaker occupy?

The breaker occupies two DIN modules and mounts directly onto a standard 35 mm DIN rail.

Trusted Electrical Protection from Lovato Electric

Lovato Electric miniature circuit breakers are trusted by electrical contractors, panel builders and OEM machine manufacturers worldwide for dependable protection of commercial and industrial electrical systems.