DISJONCTEUR DC SUNTREE 2P- 32A 550VDC

It is a miniature circuit breaker specifically designed for direct current (DC) circuits, intended to effectively protect DC circuits up to approximately 550V with a rated current of 32A.

Main Technical Characteristics

General

Type: DC miniature circuit breaker (MCB) with two poles (2P), designed for direct current circuits.

Rated current: 32A.

DC rated voltage: 550V DC (suitable for photovoltaic installations, battery systems, and other moderate-power DC circuits).

Number of poles: 2 poles, allowing simultaneous disconnection of + and − for maximum circuit safety.

Protection & Capacity

Protection against short circuits and overloads: the breaker automatically cuts off the current when excessive current is detected, protecting cables and equipment.

High breaking capacity: typically up to 6 kA, capable of interrupting significant fault currents quickly.

DC-optimized contacts: designed to open rapidly and limit electric arc phenomena, which is crucial in direct current circuits.

Important Features

Non-polarized connection: this breaker can be connected without concern for reversing +/− wires, simplifying installation.

Easy DIN rail mounting: it installs on a standard 35 mm DIN rail, allowing simple integration into DC distribution panels.

Typical applications: installed in solar panel protection boxes, between PV strings and inverters, or between panels and battery storage systems.

Why Use It?

A 2P – 32A – 550VDC DC breaker is used to:

Protect against overloads: prevents excessive current from passing through the circuit.

Quickly interrupt short circuits: reduces the risk of damage to solar or DC components.

Fully isolate both poles (DC + and −) for enhanced electronic and electrical safety.

This type of circuit breaker is essential in any photovoltaic installation or DC system to ensure reliable protection and compliance with safety standards.