Suntree 125A 4 Pole AC MCCB Circuit Breaker SM8E 125M

Description

The Suntree 125A 4 Pole AC MCCB Circuit Breaker (Model: SM8E 125M) is a dependable protection device for medium-scale electrical distribution systems. It ensures safety and stability in residential, commercial, and industrial installations.

Key Protection Features

• Protects circuits against overloads and short circuits

• Handles abnormal operating conditions automatically

• Prevents equipment damage and system downtime

4-Pole Design for Three Phase + Neutral

This molded case circuit breaker supports three phase systems with neutral protection using its 4-pole configuration. It works perfectly with:

• Switchboards and distribution panels

• Inverter output protection

• Generator systems

• Solar hybrid installations

Built for Safety & Reliability

The SM8E series features:

• Flame retardant housing – enhances fire safety

• High breaking capacity arc extinguishing technology – fast fault interruption

• IEC standard compliance – guaranteed performance in demanding environments

Expandable with Accessories

Easily add advanced monitoring and automation using:

• Auxiliary contacts

• Alarm contacts

• Undervoltage release

• Shunt trip modules

Easy Installation

The compact structure simplifies installation inside distribution boards. It offers high electrical endurance and long-term mechanical reliability.

Ideal Applications

This MCCB is ideal for protecting:

• Feeders

• Inverter outputs

• Changeover panels

• Main distribution circuits in modern power systems

  Technical Specifications – Suntree SM8E 125M MCCB

  Specification	Details
  Brand	Suntree
  Model Series	SM8E
  Model Code	SM8E 125M
  Number of Poles	4 Pole (3 Phase + Neutral)
  Rated Current (In)	125A
  Rated Operational Voltage (Ue)	AC 400V / 415V
  Rated Insulation Voltage (Ui)	800V
  Rated Impulse Withstand Voltage (Uimp)	8kV
  Breaking Capacity (Icu)	25kA / 35kA / 50kA (depending on variant – please verify)
  Trip Type	Thermal-magnetic (Overload + Short circuit)
  Frequency	50/60 Hz
  Pole Arrangement	4 poles protected (or 3 poles + N – configurable)
  Mounting Type	Fixed (screw / panel mount)
  Terminal Connection	Screw-type terminals
  Protection Functions	Overload (thermal) & Short circuit (magnetic)
  Housing Material	Flame retardant (UL 94 V-0)
  Arc Extinguishing	High breaking arc chamber technology
  Accessories Supported	Auxiliary contact, Alarm contact, Undervoltage release, Shunt trip
  Standards Compliance	IEC 60947-2
  Electrical Endurance	High (IEC cycle rating – typically 1500+ operations)
  Mechanical Endurance	High (typically 8500+ operations)
  Ambient Temperature (Operation)	-5°C to +40°C (derating above 40°C)
  Storage Temperature	-25°C to +70°C
  Degree of Protection (IP)	IP20 (body)
  Application	Distribution panels, inverters, generators, solar hybrid systems, changeover panels