Switchgear and protective devices.
This group determines the safety of the entire electrical system: the MCB protects branch circuits against overload and short circuit, the MCCB protects high-current circuits, the RCCB and RCBO provide residual current protection for people, fuses clear short-circuit faults quickly, and the ATS transfers the supply when mains power is lost. Many people in Vietnam still call them all "aptomat", but each type has its own function and they are not interchangeable.
Two figures must match when selecting: the rated current must suit the operating current and the conductor cross-section, and the breaking capacity must exceed the calculated short-circuit current at the point of installation. With insufficient breaking capacity, the device fails at the first fault and cannot interrupt it. Hoang Nhat distributes Sino, Panasonic and Chint for MCB/MCCB/RCCB, and Thivico and Giga for fuses and disconnectors.
- IEC 60898-1 for household MCBs
- IEC 60947-2 for MCCBs
- IEC 61008-1 and IEC 61009-1 for RCCB/RCBO
- Sino, Panasonic, Chint, Thivico, Giga
- 1,892items
- 20brands
- 9groups
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Main switchboards, large outgoing feeders
Industrial circuit-breakers: switching, carrying load current and short-circuit current for the whole switchboard or the whole feeder.
Final circuits
Overload and short-circuit protection for each circuit: lighting, socket-outlets, equipment. Rated current per IEC 60898-1 from 6 to 125 A.
Electric shock and leakage protection
Disconnects the circuit when the residual current rises to the threshold. In dwellings and public buildings, circuits supplying hand-held equipment must have this type of device, with an operating current not exceeding 30 mA (QCVN 12:2014/BXD).
Surge protection
Protective devices against transient overvoltages (SPD) for the power line and downstream equipment.
Select a product group
9 groups · sorted by number of items
MCCB circuit-breakers
572 items · 9 brands
MCB circuit-breakers
570 items · 9 brands
Residual current devices (RCCB, RCBO, ELCB)
335 items · 8 brands
Disconnectors and fuses
203 items · 8 brands
Switchgear accessories
141 items · 8 brands
ATS/ACB/VCB/circuit-breakers
38 items · 7 brands
Surge protective devices
22 items · 4 brands
IllustrationEarth rods and earthing materials
6 items · 1 brands
IllustrationDirect lightning protection (air terminals)
5 items · 1 brands
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MCCB circuit-breakers combinations with the most items in the database
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Number of Switchgear and protective devices items per brand
Often used together in switchboards
Related product groups — actual item counts
IllustrationOne Source for the Whole Project.
16,297 items · 72 brands · 17 product groups