Suntree 250A 1500V DC MCCB 2 Pole Solar Circuit Breaker

Description

Overview

The Suntree 250A 1500V DC MCCB 2 Pole is a high voltage molded case circuit breaker designed for photovoltaic systems, battery protection circuits, and large scale DC distribution applications. It protects cables, batteries, and inverter input lines from overload current and short circuit faults in demanding solar environments.

Key Protection Features

• Protects against overload current and short circuit faults

• Prevents damage to sensitive solar components

• Improves overall system reliability

• Suitable for demanding solar environments

1500V DC Rating for Utility Scale Systems

This DC MCCB supports systems operating up to 1500V DC, making it suitable for:

• Utility scale solar installations

• Hybrid inverter battery banks

• Combiner panel protection

2 Pole Configuration

The 2-pole configuration allows safe isolation of both positive and negative conductors during:

• Maintenance procedures

• Abnormal operating conditions

Thermal Magnetic Trip Mechanism

The breaker uses a thermal magnetic trip mechanism that responds quickly to fault conditions, helping to:

• Prevent damage to sensitive solar components

• Improve system reliability

Arc Extinguishing Technology

Its arc extinguishing chamber structure reduces arc spread during switching, which improves operational safety in high voltage DC systems.

Built for High Temperature Environments

• Flame retardant insulation material

• Stable performance under high temperature operating environments

• Complies with international protection standards

Expandable with Accessories

Supports optional accessory modules for advanced monitoring:

• Shunt trip modules

• Auxiliary contact monitoring modules

Ideal Applications

This device is ideal for protecting:

• Battery banks

• Solar combiner boxes

• Inverter input lines

• Large DC distribution circuits requiring high voltage switching protection

  Technical Specifications (Tabular Form)

  Specification	Details
  Brand	Suntree
  Model Series	SM8E (assumed based on previous model)
  Rated Current (In)	160A
  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
  Terminal Connection	Screw-type
  Housing Material	Flame retardant (UL 94 V-0)
  Accessories Supported	Auxiliary contact, Alarm contact, Undervoltage release, Shunt trip
  Standards Compliance	IEC 60947-2
  Ambient Temperature (Operation)	-5°C to +40°C
  Storage Temperature	-25°C to +70°C
  Degree of Protection (IP)	IP20 (body)
  Application	Inverters, generators, industrial switchboards, solar hybrid systems, main feeders