HT47-100 NC MCB 32A-125A 6kA/10kA

Name: HT47-100 NC MCB
Brand: Hantu Electric

HT47-100 NC MCB 1P model on DIN rail front view

HT47-100 NC MCB 2P model showing terminals and handle

HT47-100 NC MCB 3P model with pin-type terminals

Product Overview

What This Model Does

The HT47-100 NC MCB is a non-communicating miniature circuit breaker designed for industrial and large-scale construction applications requiring high-current protection and manual control. It offers overload and short-circuit protection across 1P to 4P configurations, with rated currents from 32A to 125A and breaking capacities of 6kA or 10kA. Built to IEC 60898-1 and EN/IEC 60947-2, it features a thermal-magnetic trip mechanism with B, C, or D characteristics and a 27mm width per pole for DIN rail mounting. The handle is sealable or compatible with padlock brackets to prevent unauthorized operation, and it provides clear contact position indication. It is suitable for use in household or similar applications where high reliability and safety are required.

Key Benefits

Provides overload and short-circuit protection for high-current industrial and construction circuits
Available in 1P to 4P configurations with rated currents from 32A to 125A
Supports multiple trip characteristics (B, C, D) to match load types and fault currents
Offers 6kA or 10kA breaking capacity for reliable interruption under fault conditions
Sealable handle or padlock bracket prevents accidental switching in high-risk environments
Clear visual indication of ON/OFF contact position for safe operation and maintenance
No derating required under normal operating conditions, simplifying system design
Compact 27mm width per pole allows dense panel layout on 35mm DIN rail

Who It Is For

Electrical wholesalers stocking conventional MCBs for industrial and construction markets
Panel builders integrating high-current breakers into distribution boards for industrial equipment
Switchgear assemblers building control panels for large machinery or process systems
Solar EPC contractors installing breakers in high-current PV combiner boxes or inverters
OEM/ODM buyers sourcing non-smart MCBs for integration into larger electrical systems

Problems It Solves

A conventional MCB fails to handle high fault currents in industrial circuits due to low breaking capacity
An installer cannot prevent accidental or unauthorized switching in a high-risk environment
A panel builder needs a compact, high-current breaker that fits within tight DIN rail space
A site requires a breaker with no derating to avoid oversizing the device for continuous load
A system lacks clear visual indication of contact position, increasing risk during maintenance

Application Scenarios

Industrial control panels with high-current motors or power distribution requiring reliable overcurrent protection
Large-scale construction sites where breakers are exposed to harsh conditions and need tamper-proof operation
Distribution boards in commercial buildings with high load density and need for space-efficient devices
Facilities where unauthorized switching must be prevented through mechanical locking of the handle
Applications requiring a standard MCB with high breaking capacity and no need for smart functionality

Technical Features

How It Is Built

Four pole options: 1P, 2P, 3P, 4P for single-phase or three-phase circuits
Rated current from 32A to 125A with a 125A rack rating
Breaking capacity of 6kA or 10kA depending on model
Thermal-magnetic trip mechanism with B, C, or D characteristics
Pin-type terminals for flexible cables (1.5 to 35mm²) and rigid cables (1 to 50mm²)
Rated voltage of 240V AC for 1P/2P, 415V AC for 3P/4P
Mounting on 35mm DIN rail with 27mm width per pole
Energy limiting class 3 for fast fault interruption
Ionized gas emission restricted to 45mm grid distance for safety
Clear visual indication of contact position (ON/OFF)
Handle sealable or compatible with padlock bracket for safety

Materials and Construction

Flame-retardant moulded housing with 35mm DIN rail mounting profile
Silver-alloy contacts with thermal-magnetic trip unit
Pin-type terminals made of high-conductivity copper alloy
Sealable handle with optional padlock bracket for mechanical locking

Quality Control

Trip characteristic verified against IEC 60898-1 and EN/IEC 60947-2 requirements
Breaking capacity confirmed at 6kA and 10kA for respective models
Dielectric withstand test performed at rated voltage
Visual inspection for housing integrity, terminal alignment, and handle function

Specifications

Stated Ratings for This Model

Specifications for HT47-100 NC MCB
Number of Poles	1P, 2P, 3P, 4P
Rated Current	32A, 40A, 50A, 63A, 80A, 100A, 125A
Rack Rated Current	125A
Breaking Capacity	6kA, 10kA
Trip Type	Thermal / Magnetic
Trip Characteristics	B, C, D
Rated Voltage	240V AC (1P/2P), 415V AC (3P/4P)
Terminal Type	Pin type
Terminal Capacity - Flexible Cables	1.5 to 35mm²
Terminal Capacity - Rigid Cables	1 to 50mm²
Installation	Mounting on 35mm DIN rail
Width per Pole	27mm
Energy Limiting Class	3
Ionized Gas Emission	45mm grid distance
Standards Compliant	IEC 60898-1, EN/IEC 60947-2
Thermal Operating Limit	(1.13–1.45) × In
Magnetic Operating Limit B	(3–5) × In
Magnetic Operating Limit C	(5–10) × In
Magnetic Operating Limit D	(10–20) × In

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: Frequency.

Manufacturing Process

Moulding and machining of the breaker housing and internal components
Assembly of the thermal-magnetic trip unit and contact system
Fitting of pin-type terminals and connection to the main circuit path
Calibration of trip characteristics against B, C, and D curves
Testing of mechanical operation and trip performance under overload and short-circuit conditions
Final inspection and dielectric testing before packing

Customization Options

Rated current selected from 32A to 125A per order
Pole count supplied as 1P, 2P, 3P, or 4P from the same series
ODM branding on housing print and packaging
Packaging and carton marking to the buyer's own specification

Comparison

How It Compares

Standard MCB with 6kA breaking capacity	The HT47-100 offers 10kA option for higher fault current environments, but at a higher unit cost
MCB with lower rated current	This model supports higher currents (up to 125A) for industrial loads, but requires more space per pole
MCB with no sealable handle	The HT47-100 includes a sealable handle or padlock bracket for safety, but adds mechanical complexity
Smart MCB with IoT features	This is a non-communicating device, so it lacks remote control but is simpler and lower cost