Suntree 250A 4 Pole AC MCCB Circuit Breaker SM8E 250M

Description

Overview

The Suntree 250A 4 Pole AC MCCB Circuit Breaker (Model: SM8E 250M) is a heavy duty protection device designed for large electrical distribution systems in commercial and industrial installations. It protects power circuits from overload current and short circuit faults while improving operational safety across connected equipment.

Key Protection Features

• Protects against overload current and short circuit faults

• Improves operational safety across connected equipment

• Reduces equipment damage risk

• Enhances system reliability for high capacity installations

4-Pole Design for Three Phase + Neutral

This molded case circuit breaker supports three phase systems with neutral protection using its 4-pole structure. It is suitable for:

• Main distribution panels

• Generator protection panels

• Solar inverter output protection

• Industrial switchboards requiring stable power isolation

Thermal Magnetic Protection Mechanism

The SM8E series MCCB uses a thermal magnetic protection mechanism that responds quickly during abnormal electrical conditions. It:

• Interrupts fault current rapidly

• Reduces equipment damage risk

• Improves system reliability across high capacity installations

Expandable with Accessories

Supports accessory expansion for monitoring and automation integration:

• Auxiliary contacts

• Alarm contacts

• Undervoltage release modules

• Shunt trip units

Easy Installation

Its compact panel mounted structure simplifies installation inside distribution enclosures.

Built for Demanding Environments

• Flame retardant insulation material

• Advanced arc extinguishing technology

• Ensures reliable switching performance under demanding operating environments

• Complies with IEC 60947 protection standards

• Guarantees stable long term performance across distribution networks

Ideal Applications

This MCCB is ideal for protecting:

• Main feeders

• Solar hybrid inverter outputs

• Generator distribution panels

• Industrial electrical control systems

  Technical Specifications

  Specification	Details
  Brand	Suntree
  Model Series	SM8E
  Model Code	SM8E 250M
  Rated Current (In)	250A
  Number of Poles	4 Pole (3 Phase + Neutral)
  Rated Operational Voltage (Ue)	AC 400V / 415V
  Rated Insulation Voltage (Ui)	800V
  Rated Impulse Withstand Voltage (Uimp)	8kV
  Breaking Capacity (Icu)	25kA / 35kA / 50kA (verify by variant)
  Trip Mechanism	Thermal-magnetic
  Frequency	50/60 Hz
  Mounting Type	Fixed (panel mounted)
  Terminal Connection	Screw-type terminals
  Housing Material	Flame retardant insulation material
  Arc Extinguishing Technology	Advanced arc chamber
  Accessories Supported	Auxiliary contact, Alarm contact, Undervoltage release, Shunt trip
  Standards Compliance	IEC 60947
  Ambient Temperature (Operation)	-5°C to +40°C
  Storage Temperature	-25°C to +70°C
  Degree of Protection (IP)	IP20 (body)
  Application	Main distribution panels, generator panels, solar inverter output, industrial switchboards, main feeders, industrial control system