Suntree 400A 4 Pole AC MCCB Circuit Breaker SM8E 400M

Description

Overview

The Suntree 400A 4 Pole AC MCCB Circuit Breaker (Model: SM8E 400M) is a high capacity molded case circuit breaker designed for heavy duty electrical distribution systems in commercial and industrial installations. It protects circuits against overload current and short circuit faults while improving operational reliability across large power networks.

Key Protection Features

• Protects against overload current and short circuit faults

• Improves operational reliability across large power networks

• Reduces damage risk to connected equipment

• Enhances overall system safety

4-Pole Design with Full Neutral Isolation

This breaker supports three phase systems with full neutral isolation using its 4-pole configuration. It is suitable for:

• Main incoming feeders

• Generator distribution panels

• Solar inverter output protection

• Industrial switchboards requiring high current switching protection

Thermal Magnetic Trip Mechanism with Adjustable Range

The SM8E series uses a thermal magnetic trip mechanism that responds quickly during abnormal electrical conditions. Features include:

• Adjustable trip current range: 160A to 400A

• Rapid fault current interruption

• Reduced damage risk to connected equipment

• Improved overall system safety

Compact & Easy to Install

Its compact panel mounted structure allows easy installation inside:

• Distribution boards

• Control panels

Expandable with Accessories

Supports accessory expansion for monitoring and automation integration in advanced installations:

• Auxiliary contacts

• Alarm contacts

• Undervoltage release modules

• Shunt trip modules

Built for Demanding Environments

• Flame retardant insulation housing

• High performance arc extinguishing technology

• Ensures reliable switching performance under demanding environments

• Complies with IEC 60947-2 standards

• Guarantees stable long term performance in electrical protection systems

Ideal Applications

This MCCB is ideal for protecting:

• Industrial feeders

• Solar hybrid inverter output circuits

• Generator changeover panels

• Commercial power distribution systems

  Technical Specifications

  Specification	Details
  Brand	Suntree
  Model	SM8E 400M
  Rated Current (In)	400A
  Adjustable Trip Current Range	160A – 400A
  Number of Poles	4 Pole (3 Phase + Neutral)
  Rated Operational Voltage (Ue)	400V AC
  Rated Insulation Voltage (Ui)	1000V
  Rated Impulse Withstand Voltage (Uimp)	12kV
  Breaking Capacity (Icu)	Up to 75kA at 400V
  Service Breaking Capacity (Ics)	Up to 50kA
  Short Time Withstand Current (Icw)	5kA for 1 second
  Frequency	50Hz – 60Hz
  Trip Mechanism	Thermal magnetic protection
  Mounting Type	Panel mounted
  Housing Material	Flame retardant insulation housing
  Arc Extinguishing Technology	High performance arc chamber
  Accessories Supported	Auxiliary contacts, Alarm contacts, Undervoltage release, Shunt trip
  Standards Compliance	IEC 60947-2
  Application Areas	Main distribution boards, Industrial feeder protection, Generator protection panels, Solar inverter output protection, Commercial electrical systems