DZ47Z-63 Solar MCB 1A-63A DC 12V-1000V

Name: DZ47Z-63 Solar MCB
Brand: Hantu Electric

DZ47Z-63 3P DC MCB on DIN rail front view

DZ47Z-1P and 2P DC MCBs showing terminals and handles

DZ47Z-2P DC MCB close-up of terminals and mounting

DZ47Z-3P DC MCB installed in a control panel

Product Overview

What This Model Does

The DZ47Z-63 Solar MCB is a DC miniature circuit breaker designed for over-current protection in direct current control circuits and DC equipment applications where branch circuit protection is already present or not required. It operates on DC voltages from 12V to 1000V, covers rated currents from 1A to 63A, and is built to handle up to 4.5kA ultimate breaking capacity. It is suitable for use in solar power systems, battery banks, and DC control panels where reliable over-current protection is needed without the need for a separate branch protection device.

Key Benefits

Provides over-current protection in DC circuits where branch protection is already in place
Operates reliably across DC 12V to 1000V, suitable for solar and battery systems
Rated for 4.5kA ultimate breaking capacity to handle high fault currents in DC applications
Thermal-magnetic trip mechanism ensures accurate response to overloads and short circuits
Available in 1P, 2P, 3P, and 4P configurations for flexible integration in DC panels
Mechanical life of 9700 operations and electrical life of 300 operations ensure long-term reliability

Who It Is For

Solar EPC contractors integrating DC protection into solar system panels
Panel builders specifying DC MCBs for battery or inverter circuits
Equipment manufacturers needing over-current protection in DC-powered devices
Industrial automation engineers designing DC control panels with local protection
OEMs building DC-powered systems requiring a compliant and reliable MCB

Problems It Solves

An over-current event in a DC circuit can cause damage or fire when no local protection is present
Using a standard AC MCB in a DC circuit can lead to failure to interrupt due to lack of arc extinction
Lack of a dedicated DC MCB forces engineers to use non-compliant or oversized protection
DC systems require a breaker with higher breaking capacity than AC equivalents due to sustained arcs
No single device available for DC control circuits that matches the reliability and standards of AC MCBs

Application Scenarios

Solar inverter output circuits protected from over-current without duplicating branch protection
Battery bank circuits in off-grid systems where DC over-current protection is needed at the equipment level
DC control circuits in industrial machinery where a dedicated MCB is required for safety
DC distribution boards in data centers or telecom sites using DC power for equipment
Electric vehicle charging stations with DC power feeds requiring local over-current protection

Technical Features

How It Is Built

Designed for direct current (DC) control circuit applications
Rated operating voltage DC 12V to DC 1000V
Rated current from 1A to 63A with a 63A frame rating
Rated insulation voltage 1200V DC and rated impulse withstand voltage 4kV
Ultimate breaking capacity 4.5kA at DC 1000V
Run breaking capacity 100% of ultimate breaking capacity
Trip type: thermal-magnetic with Type C curve
Mechanical life: 9700 operations (actual average), 9700 (standard)
Electrical life: 300 operations (actual average), 200 (standard)
Available in 1P, 2P, 3P, and 4P pole configurations

Materials and Construction

Silver-alloy contacts with thermal-magnetic trip mechanism
Internal components designed for DC arc extinction and high breaking capacity

Quality Control

Ultimate breaking capacity tested at 4.5kA under DC 1000V
Mechanical operation tested to 9700 cycles
Electrical operation tested to 300 cycles
Insulation and dielectric withstand test performed on every unit

Specifications

Stated Ratings for This Model

Specifications for DZ47Z-63 Solar MCB
Rated Operating Voltage	DC 12V - DC 1000V
Rated Current In	1A to 63A
Frame Rated Current	63A
Rated Insulation Voltage	1200V DC
Rated Impulse Withstand Voltage	4kV
Ultimate Breaking Capacity	4.5kA
Run Breaking Capacity	100% of lcu
Trip Type	Thermal-magnetic, Type C
Mechanical Life	9700 operations (actual average)
Electrical Life	300 operations (actual average)
Number of Poles	1P, 2P, 3P, 4P

Ratings are as published for this model. Where a value is not published we mark it TBC rather than estimating it.

Values that could not be confirmed against the published catalogue text for this model are marked TBC and confirmed by email before order: Standard, Mounting.

Manufacturing Process

Moulding of the flame-retardant housing and internal carriers
Assembly of the thermal-magnetic trip unit and contact system
Calibration of the trip characteristic to match Type C curve
Testing of mechanical and electrical operation under DC load
Final dielectric and insulation testing before packing

Customization Options

Rated current selected from 1A to 63A per order
Pole count supplied as 1P, 2P, 3P, or 4P from the same series
ODM branding on housing print and packaging available
Packaging and carton marking to buyer’s specification

Comparison

How It Compares

Standard AC MCB	Not suitable for DC circuits due to lack of arc extinction capability and lower breaking capacity
AC MCB with DC rating	DC rating is often not verified or not sufficient for 4.5kA in high-voltage DC systems
Fuse for DC protection	No reset capability; requires replacement after each fault, increasing downtime