AC miniature circuit breakers
Compare single-pole, switched-neutral and multi-pole directions around the required current, trip curve, terminal and fault duty. Select a matched device and accessory arrangement.
Enquire about this range ↗Home/Cables & Electrical Hardware/Modular Breakers, Residual-Current Protection, Surge Devices & Isolation Sourcing
AC/DC MCB, RCBO, RCCB, AFDD, CONTACTORS, SPDS & MODULAR SWITCHING
Modular Circuit Protection Matched to Your Electrical Schedule
Modular Breakers, Residual-Current Protection, Surge Devices & Isolation Sourcing
Source AC/DC miniature breakers, RCBO and RCCB residual protection, Type B and EV-related devices, arc-fault protection, modular contactors, surge devices, isolators, changeover switches, bell transformers, indicators, fuse holders and matching accessories.
- Compare overcurrent, residual-current, arc-fault, isolation and surge functions as distinct selection requirements.
- Keep ultimate/service breaking, conditional current, voltage and AC/DC duty tied to the exact offered device.
- Coordinate modular controls, busbars, accessories, drawings and current documentation in one enquiry.
Manufacturing, product documents and order conditions depend on the model and supply route selected for your project.
Start with a product reference, intended use and estimated quantity. We bring product selection, sample questions and quotation details into one conversation.
Email your reference image ↗Protection rangeAC/DC MCB, RCBO, RCCB, Type B, EV-related and arc-fault directions
Control rangeContactors, isolators, manual changeover, transformers and indicators
Support itemsBusbars, auxiliary contacts, releases, locks, covers and barriers
Enquiry inputsCircuit duty, interfaces, documents, quantities and destination
Explore the product range
Build the range
your buyers need.
Choose a focused product or discuss a coordinated assortment. Each direction can be developed into a more specific model and packaging brief.
DC miniature breakers
Develop a DC protection schedule with exact pole configuration, voltage, wiring and required interruption duty. A maximum family voltage does not apply to every pole arrangement.
Enquire about this range ↗Residual protection with overcurrent functions
Compare RCBO directions with the required switched-line/neutral behaviour, waveform type, sensitivity, current and short-circuit duty. Compact size does not establish interchangeable wiring.
Enquire about this range ↗Residual protection without overcurrent functions
Specify RCCB current, poles, residual-current type, sensitivity and backup protection. Conditional short-circuit withstand is distinct from an RCBO breaking rating.
Enquire about this range ↗Type B and EV-related residual protection
Compare Type B residual-current devices and separate EV-related AC/DC residual-current constructions. Define the charging-system architecture and exact function; a component does not establish approval of a complete charging station.
Enquire about this range ↗Arc-fault detection directions
Evaluate an arc-fault device with its actual combined residual and overcurrent functions. Confirm supply, current, poles, test scope and the installation requirements of the offered article.
Enquire about this range ↗Modular contactors
Select control voltage, load utilisation category, contacts, current and module width for lighting, heating or other approved loads. Capacitor-switching duty requires a specifically suitable offered model.
Enquire about this range ↗Surge-protective devices
Prepare system voltage, earthing, protection level, impulse duty and backup protection requirements. MOV and neutral/earth discharge modules have different continuous-voltage and coordination details.
Enquire about this range ↗Isolators and switch disconnectors
Compare pole arrangements, continuous current and making/withstand requirements with the intended isolation duty. Approve installation and switching-category details for the exact device.
Enquire about this range ↗Manual changeover switches
Provide the required poles, positions and contact sequence for source or circuit selection. Manual changeover does not imply automatic-transfer functions.
Enquire about this range ↗Bell and control transformers
Specify primary and secondary voltages, VA duty, circuit, enclosure and mounting. Output and load suitability depend on the selected winding configuration.
Enquire about this range ↗Signal and indication modules
Enquire about single- or multi-phase indication, colour, lamp supply and module arrangement. Separate AC and DC supply variants and the required wiring.
Enquire about this range ↗Modular fuse-switch directions
Match fuse size, duty, current, poles and holder configuration. A fuse-holder thermal rating is not the breaking capacity of a complete protective assembly.
Enquire about this range ↗Auxiliary contacts and trip accessories
Coordinate auxiliary indication, alarm switches, shunt release and over/undervoltage accessories with the exact breaker family. Confirm mounting and electrical compatibility rather than mixing similar-looking devices.
Enquire about this range ↗Busbars, locks and protective covers
Develop pin/fork connection and phase schedules with pitch, conductor section, end protection and rated duty. Handle locks, screw covers and barriers need a matching physical drawing.
Enquire about this range ↗Distribution enclosures and related hardware
Include distribution-box and related installation requirements with the circuit list, device layout, busbar interfaces, enclosure rating and wiring. Confirm the current offered enclosure and actual producer separately.
Enquire about this range ↗Reference product directions
Start with a product.
Define the details.
Use these options to describe what you are buying. The public references identify your enquiry; the final model and specification are confirmed before an order.
REFERENCE 0228-01
Compact AC breaker reference
A line-and-neutral reference with its own listed current steps. Confirm switching behaviour and fault-duty notation for the selected variant.
- Current direction
- 1–40 A in listed steps
- Voltage options
- 220/230/240 V
- Poles
- 1P+N
- Published ultimate/service values
- 6/6 kA
- Curves
- B, C or D
- Protection direction
- IP20
REFERENCE 0228-02
Multi-pole AC breaker reference
Select pole count and voltage together in an approved schedule. Accessory compatibility is model-specific.
- Current direction
- 6–63 A in listed steps
- Voltage options
- 230/240 or 400/415 V
- Pole options
- 1, 2, 3, 4;1P+N;3P+N
- Published ultimate/service values
- 6/6 kA
- Frequency
- 50/60 Hz
- Curves
- B, C or D
REFERENCE 0228-03
DC miniature-breaker reference
Choose the actual pole wiring for the system voltage. The stated capacity belongs to the offered DC configuration and its test basis.
- Current direction
- 1–63 A in listed steps
- Pole options
- 1, 2, 3 or 4
- Single-pole voltage options
- 110/125/220/250 V DC
- Published Icu/Ics
- 10/7.5 kA
- Four-pole voltage direction
- 880/1000 V DC, exact wiring to confirm
REFERENCE 0228-04
6 kA combined residual/overcurrent reference
A compact switched-line-and-neutral direction. State the actual sensitivity, waveform and curve.
- Current direction
- 6–40 A in listed steps
- Voltage
- 230/240 V
- Poles
- 1P+N
- Published Icu/Ics
- 6/6 kA
- Sensitivity options
- 10, 30, 100 or 300 mA
- Residual types
- AC or A
- Curves
- B or C
REFERENCE 0228-05
10 kA combined residual/overcurrent reference
A separate RCBO reference with different ultimate and service breaking figures. Keep those values distinct.
- Current direction
- 6–40 A in listed steps
- Voltage
- 240 V
- Poles
- 1P+N
- Published Icu
- 10 kA
- Published Ics
- 7.5 kA
- Sensitivity options
- 10, 30, 100 or 300 mA
- Residual types
- AC or A
REFERENCE 0228-06
AC/A residual-only breaker reference
Select time-delay and current options separately. Conditional withstand requires the specified backup protection.
- Instantaneous current options
- 16, 25, 40, 63, 80 or 100 A
- Time-delay current options
- 40, 63, 80 or 100 A
- Voltage options
- 240 or 415 V
- Poles
- 1P+N or 3P+N
- Sensitivity
- 30, 100 or 300 mA
- Residual types
- AC or A
- Conditional Inc/IΔc
- 10 kA; backup protection required
REFERENCE 0228-07
Type B residual-only reference
A distinct waveform-selection direction. Confirm the relevant waveform tests and coordinated overcurrent protection.
- Current options
- 16, 25, 40, 63 or 80 A
- Voltage options
- 230/240 or 400/415 V
- Poles
- 1P+N or 3P+N
- Sensitivity
- 30, 100 or 300 mA
- Residual type
- B
- Conditional Inc/IΔc
- 10 kA; not an RCBO Icu
REFERENCE 0228-08
EV-related combined protection reference
A listed Type A RCBO direction incorporating a separate DC residual-current detection function. Validate the exact charging-system architecture and matching reports.
- Current direction
- 6–63 A in listed steps
- Voltage
- 230/240 V
- Poles
- 1P+N
- AC residual reference
- 30 mA, Type A
- DC residual reference
- 6 mA
- Published Icu/Ics
- 6/6 kA
REFERENCE 0228-09
EV-related residual-only direction
Compare this separate residual-only construction with the complete system requirements. Its protective functions must not be assumed identical to a combined RCBO.
- Current options
- 16, 25, 40 or 63 A
- Voltage options
- 230/240 or 400/415 V
- Poles
- 1P+N or 3P+N
- Residual reference
- 30 mA
- DC residual reference
- 6 mA
- To confirm
- Waveform tests and coordinated overcurrent protection
REFERENCE 0228-10
Arc-fault combined-device reference
Confirm the actual arc-fault, residual and overcurrent functions in the offered configuration and installation.
- Current direction
- 6–40 A in listed steps
- Voltage
- 230/240 V
- Poles
- 1P+N
- Residual type/sensitivity
- A/30 mA
- Published Icu/Ics
- 10/7.5 kA
- Listed overvoltage threshold
- 275 V
REFERENCE 0228-11
Modular-contactor reference
Select load category and coil separately from the nominal current list. Confirm contact arrangement and module width.
- Current options
- 20, 25, 40, 63, 80, 100 or 125 A
- Operational voltage reference
- 230/400 V
- Control-voltage options
- 24, 48, 110 or 230 V
- Width options
- 1, 2 or 3 modules
- Listed categories
- AC-1, AC-3, AC-7a, AC-7b, AC-5b
REFERENCE 0228-12
Extended modular-contactor direction
A separate contactor family with additional width/current options. Do not combine its accessories with another family without confirmation.
- Current options
- 20, 25, 40, 50, 63, 80, 100 or 125 A
- Control-voltage options
- 24, 48, 110 or 230 V
- Module widths
- 1, 2, 3 or 6
- Operational voltage reference
- 230/400 V
REFERENCE 0228-13
MOV surge-protection reference
A specific MOV-column example. Coordinate the neutral/earth path and backup device separately.
- Nominal discharge current
- 20 kA, 8/20 μs
- Maximum discharge current
- 40 kA, 8/20 μs
- Selected continuous voltage
- 275 V
- Selected protection level
- ≤1.3 kV
- Protection direction
- IP20
- Material direction
- PA66
REFERENCE 0228-14
Lower-discharge surge-protection reference
Compare a separate discharge class against the required system protection and coordination.
- Nominal discharge current
- 10 kA, 8/20 μs
- Maximum discharge current
- 20 kA, 8/20 μs
- Continuous-voltage options
- 275, 320, 385 or 420 V;neutral/earth 255 V
- Protection direction
- IP20
REFERENCE 0228-15
Modular isolator reference
Continuous current, short-time withstand and making duty are different parameters. Select the exact pole and voltage arrangement.
- Current options
- 63, 80, 100 or 125 A
- Voltage options
- 230/240 or 400/415 V
- Poles
- 1, 2, 3 or 4
- Short-time withstand Icw
- 1500 A for 1 s
- Making capacity Icm
- 2500 A
- Protection direction
- IP20
REFERENCE 0228-16
Manual changeover reference
Provide the contact sequence and installation. This construction has its own stated short-time withstand value.
- Current options
- 6, 10, 16, 20, 25, 32 or 40 A
- Voltage
- 240/415 V
- Poles
- 1, 2, 3 or 4
- Short-time withstand Icw
- 480 A for 1 s
- Making capacity Icm
- 800 A
- Utilisation category
- AC-22A
REFERENCE 0228-17
Alternative manual changeover reference
A separate manual device with a different short-time withstand value; do not inherit it across families.
- Current options
- 6, 10, 16, 20, 25, 32 or 40 A
- Voltage
- 240/415 V
- Poles
- 1, 2, 3 or 4
- Short-time withstand Icw
- 680 A for 1 s
- Making capacity Icm
- 800 A
- Utilisation category
- AC-22A
REFERENCE 0228-18
Bell/control transformer direction
Agree the actual winding diagram, secondary voltage and VA load before selecting the transformer.
- Primary voltage options
- 230/240 V
- Frequency
- 50/60 Hz
- Protection direction
- IP20
- Selection input
- Secondary voltage, winding diagram and VA duty
REFERENCE 0228-19
AC or DC signal-lamp direction
Select the AC or DC supply version, LED colour, module arrangement and wiring for the required indication function.
- AC voltage options
- 24, 48, 110 or 230 V
- DC voltage options
- 24, 48, 110 or 230 V
- Lamp source
- LED
- Listed lamp capacity
- 0.8 W
- Colours
- Red, green, blue, yellow or clear
- Protection direction
- IP20
REFERENCE 0228-20
Modular fuse-holder direction
Select the fuse and holder as a matched protective combination. The thermal-current reference alone does not establish interruption capability.
- Thermal current reference
- 32 A
- Voltage options
- 230/240 or 400/415 V
- Poles
- 1, 2, 3 or 4
- Fuse-link sizes
- 8.5 ×31 or 10 ×38 mm
- Insulation voltage
- 600 V
REFERENCE 0228-21
Auxiliary indication and release brief
Prepare a matched accessory list with the actual breaker family and control circuit.
- Directions
- Auxiliary contact, alarm indication, shunt and voltage-related release
- To define
- Compatible host, contact/control ratings and mounting
REFERENCE 0228-22
Busbar and protective-accessory brief
Approve pitch, phases, section and end protection against the chosen terminal layout.
- Directions
- Pin/fork busbars, handle locks, screw covers and barriers
- To define
- Dimensions, rating, compatibility and installation
References apply to the stated configuration and require current item-specific confirmation. Icu, Ics, conditional short-circuit current, making capacity and short-time withstand are different quantities. Pole arrangements, residual-current types, voltage and control functions are not interchangeable. Samples and matching reports should be approved for the intended installation.
What matters for this category
A better brief.
A clearer comparison.
Focus the sourcing conversation on the features, materials and production details that make a difference to your product range.
Protection functions clearly separated
Build a schedule that distinguishes overload/short-circuit protection, residual operation, arc detection, isolation and surge coordination so devices can be compared against their actual circuit roles.
Modular equipment coordinated
Include contactors, switching, auxiliary modules, busbars and protective covers with an approved mounting and connection schedule.
Specific residual-current options
Compare AC/A, Type B and separately specified EV-related directions with their actual sensitivity and backup arrangements rather than treating every leakage device as the same product.
Branding, configuration & packaging
Make the product
fit your programme.
Bring artwork, reference samples and a target cost. The available process, minimum quantity, sample charges and development scope are reviewed for the chosen option.
Electrical and mechanical configuration
State current, voltage, poles, trip curve, residual waveform/sensitivity, terminals, coil or control supply and mounting. Match accessories to the selected host device.
System and enclosure requirements
Provide the circuit diagram, protection coordination, DC pole wiring, busbar layout and enclosure/device list. Distribution-box and capacitor-switching requirements need their own current offered-model confirmation.
Marking, sampling and packaging
Request artwork, labels, sample tests, pack quantities and protective cartons against the exact range. MOQ, sample/tooling charges and production timing need written confirmation.
Quality & product evidence
Turn requirements
into checks.
Agree which product characteristics need testing and how the approved sample relates to the bulk order.
Model-specific technical approval
Review the current data sheet, contact/wiring diagram and applicable reports. Confirm residual-current behaviour, neutral switching, control supply and rated fault duty for the offered construction.
Testing that matches the function
Agree functional/endurance, temperature-rise, dielectric, short-circuit or residual-operation tests as appropriate. For arc or EV-related devices request the evidence for their actual claimed functions.
Complete installation review
Check backup protection, busbar pitch and capacity, terminal sizing, enclosure conditions and device compatibility. Component test data does not establish compliance of a whole charging station or distribution assembly.
Test capability is a starting point for the inspection plan. Request the method, applicable model and results needed for your order.
Documents matched to the order
Ask for evidence
that fits the product.
Request current documentation for the exact offered models, ratings and producer. A laboratory description or corporate accreditation cannot replace the product report and installation-specific acceptance requirements.
State the sales market, intended users and required files in your first enquiry. Current validity and scope are checked for the selected supplier and product; a category description does not certify every item.
Share your document requirements ↗- Selection and drawing file
- Current model sheets, circuit/contact diagrams, mounting dimensions, DC pole wiring, accessory compatibility and busbar or enclosure drawings.
- Testing and compliance file
- Applicable exact-model reports, declarations and inspection criteria, with required residual-waveform, fault, environmental or endurance evidence and destination-specific approvals.
- Quotation and shipment file
- Itemised offered configuration, sample/tooling terms, minimum quantities and timing, labels, packing, weights and agreed shipment documents.
Built around how you sell
Different buyers.
Different specifications.
Your sales channel changes the assortment, packaging and quality priorities. Tell us the intended use as well as the product name.
Residential and commercial circuits
Prepare modular distribution requirements with the selected overcurrent, residual, isolation, surge and indication functions.
Industrial control and panel ranges
Coordinate contactors, manual changeover, isolation, transformers, auxiliaries and busbar interfaces around the actual load and control circuit.
DC and charging-system projects
Develop a DC or EV-related protection brief with the exact system architecture, voltage, poles, residual-current needs and required technical evidence.
From first brief to a defined order
One contact.
A practical next step.
Samples, commercial terms and responsibilities are agreed for the project. Use the same product and packing specification when comparing quotations.
Share the requirement
Product, reference image, quantity, sales market and timing.
Compare suitable options
Review configuration, materials, sample scope and relevant documents.
Approve the specification
Agree artwork, packaging, sample, testing and inspection criteria.
Confirm the order plan
Set price, payment, production, delivery and defect remedies in writing.
Buyer questions
Before you send
your first enquiry.
Practical answers about this sourcing direction, customization and the reference options. Your agreed specification and written quotation determine the actual order.
Which protection families are included?
AC/DC miniature breakers, combined RCBO, residual-only RCCB, Type B and EV-related directions, arc-fault devices and surge protection can be evaluated against a defined circuit.
Is a 10 kA RCCB equivalent to a 10 kA RCBO?
Check the actual notation and tests. A residual-only device may state conditional short-circuit withstand with backup protection; an RCBO has a separately stated overcurrent interruption duty. Do not treat the figures as interchangeable.
Do Type B and EV-related devices have the same function?
Specify the required waveform and system architecture. Type B residual protection and a separately described AC/DC EV-related device can have different detection and protection functions; approve the exact model and reports.
Can every pole arrangement use the maximum DC voltage?
No. Voltage duty depends on the actual poles, connections and device construction. Provide the DC system and approve a matching wiring and rating schedule.
Can manual changeover replace automatic transfer equipment?
The changeover directions described here require the specified manual operation and contact sequence. Automatic transfer functions are a separate system requirement requiring an appropriate offered construction.
Can I include enclosures, busbars and accessories?
Provide device and conductor layout, pitch, phases, ratings and mounting requirements. Confirm the actual enclosure supply route and host compatibility for each auxiliary, release, lock or cover.
Are laboratory or approval logos enough?
Request current product-specific reports and applicable destination documents for the exact device and ratings. Laboratory accreditation alone does not certify the offered product or complete installation.
What is needed for a quotation or samples?
Send the circuit and load, AC/DC supply, poles and protective functions, drawings, required reports and tests, quantities, marking, packing and destination. Availability, minimum quantity, sample costs and timing are confirmed in writing.
Who handles my enquiry?
Factory Sourcing Hub handles this enquiry as an independent sourcing and trading service. The product route, supplier suitability, sample scope and order responsibilities are agreed for the actual project.
How do I get a price and order minimum?
Send the product reference, quantities per variation, customization and packaging. Prices, minimums, sample charges and delivery dates are confirmed in a current quotation; the page is not a live inventory or price feed.
Can I discuss samples and inspection before ordering?
Yes. State whether you need a reference sample, a customized sample or development work. Agree the sample cost and shipping, approval specification, inspection plan and remedy for non-conforming goods before the bulk order.
What should I attach to my email?
Reference images, drawings, logo artwork and a product list are useful. Include quantities, the intended users and sales market, packaging, required documents and timing. After submitting the form, email attachments to kunhuow@gmail.com with your enquiry reference.
Tell us what you are planning
Your next order
starts with a brief.
A reference picture or a short description is enough to begin. Add the details you already know; the optional fields help make the follow-up more useful.
- Circuit, AC/DC supply, current, poles and exact protection/control functions
- Residual waveform/sensitivity, fault duty, coil, DC wiring and interfaces
- Current documentation, sample tests, inspection and enclosure requirements
- Quantities, marking, packing and shipment destination
Download the enquiry checklist ↓
Independent sourcing and trading service. Supplier choice, service costs and order conditions are discussed for your project.
Discuss your requirements.
Product selection, customization, samples and quotation enquiries.
Explore other sourcing directions
More options for
your product list.
Compare separate product ranges and prepare a brief that fits your assortment.
Miniature Circuit Breaker, Residual-Current Device & Isolator Sourcing
Source miniature circuit breakers, residual-current devices, combined overcurrent and residual protection, isolators, surge-protection enquiries and selected related electrical component directions with model-specific technical review.
Explore this service ↗
Circuit Protection, EV Charging, Distribution & Industrial Controls
Source low-voltage and DC circuit protection, EV charging equipment, distribution boxes, motor control, sensors, meters and industrial connection products. Compare specific electrical ratings, configuration, customization and documentation for your project.
Explore this service ↗
Circuit Protection, Arc-Fault Devices, Distribution Boxes & Cabinets
Source circuit breakers, residual-current and arc-fault protection, surge devices, DC protection, distribution boxes, cabinets and connection accessories. Compare model-specific ratings, installation, control functions and private-label requirements for your market.
Explore this service ↗
Circuit Breakers, Motor Control, Distribution Boxes & Accessories
Source fixed, adjustable and electronic circuit protection, motor switching, distribution boxes and matched accessories. Compare voltage-specific fault ratings, trip settings, mounting, packaging and technical-document requirements for each product.
Explore this service ↗Information basis: published product information reviewed . Reference details support a sourcing discussion. Current supply, samples and product-specific documents are confirmed for the selected item.