Maasarent MCBTPN-B040 Triple Pole + Neutral Miniature Circuit Breaker (TPN MCB) B Curve 40A

Long Description

The MCBTPN-B040 Triple Pole + Neutral Miniature Circuit Breaker (TPN MCB) is designed to provide safe and efficient protection for three-phase electrical distribution systems where neutral switching is required. With a B Curve tripping characteristic, it is suitable for circuits with low inrush currents such as lighting systems, residential distribution networks, commercial buildings, and general-purpose electrical loads.

This device ensures simultaneous protection and disconnection of three phases along with the neutral conductor, providing complete circuit isolation during fault conditions and maintenance activities. Its thermal-magnetic trip mechanism delivers precise overload detection and rapid response to short-circuit faults, ensuring reliable system protection.

Manufactured using high-quality flame-retardant engineering plastic, the MCBTPN-B040 offers durability, long service life, and consistent performance under continuous load conditions. The compact DIN rail mounting system allows easy installation in distribution boards and control panels, while finger-safe terminals improve safety during wiring and maintenance operations.

The TPN configuration makes it suitable for installations where neutral isolation is essential for improved safety, especially in modern three-phase distribution systems.

Key Features

40A rated current

Triple Pole and Neutral (TPN) configuration for complete three-phase + neutral protection

B Curve tripping characteristic (3–5× rated current), suitable for resistive and low inrush loads

Reliable protection against overload and short circuit faults

Thermal-magnetic tripping mechanism for fast response

DIN rail mounting for easy installation

Compact modular design for distribution boards

Flame-retardant thermoplastic housing

High electrical and mechanical durability

Finger-safe terminals for improved installation safety

Positive ON/OFF trip indication

Complies with IEC 60898-1 / IS 8828 standards

Applications

Three-phase residential distribution boards

Commercial electrical installations

Office buildings and complexes

Retail shops and showrooms

Lighting distribution systems

Socket and power circuits

Small load three-phase systems

Generator distribution panels

Building electrical infrastructure

Low-voltage power distribution systems

HVAC auxiliary circuits (light load)

Control panels for basic electrical loads

Utility backup power systems

Electrical maintenance and retrofit projects

General-purpose three-phase + neutral protection circuits