Variable Associate

A 125-ampere DC MCB is used for over-current protection in DC electrical systems, such as those in solar energy systems, electric vehicles, and industrial control circuits. It is suitable for applications with a rated current of up to 125A and can be found protecting batteries, inverter systems, and large-scale electrical setups. Common applications

• Solar energy systems: Used to protect solar panel arrays, DC combiners, and circuits between batteries and hybrid inverters.
• Electric vehicles: Protects the electrical systems in EV charging stations.
• Industrial control: Protects DC-powered machinery, equipment, and control circuits.
• Inverter and generator systems: Protects circuits in systems that use generators or inverters.
• Large-scale DC setups: Suitable for heavy-duty operations and large-scale electrical installations. 

Key functions

• Overload and short-circuit protection: It automatically trips to shut off power to prevent damage from excessive current flow.
• Appliance and equipment protection: Can be used as a supplementary protector within individual appliances or equipment to provide over-current protection where branch circuit protection is already provided or not required. 

Additional Information:

• Item Code: SEDC7125H
• Production Capacity: 500
• Delivery Time: 1 DAYS
• Packaging Details: WHITE

DC MCB 125-AMPERE 1-POLE AND 2-POLE 500VDC USE IN BATTERY POWER STORAGE
2. Battery Banks

• Used in large battery systems (e.g., lithium-ion, AGM, GEL) in:

  • Telecom towers

  • UPS backup systems

  • Data centers

• Protects cables and components from faults.

Additional Information:

• Item Code: SEDC7-125H
• Production Capacity: 1000
• Delivery Time: 1-2DAY
• Packaging Details: WHITE WITH BRANDING

Use in EV vehicles
DC MCBs are commonly used in the following applications: Vehicle electrical components are found in both gasoline and electric vehicles. Every car has a fuse box with DC MCB. Uninterruptible power supply (UPS) systems usually use batteries

Solar DC MCB
DC MCBs are commonly used in the following applications: Vehicle electrical components are found in both gasoline and electric vehicles. Every car has a fuse box with DC MCB. Uninterruptible power supply (UPS) systems usually use batteries

What it does

• Protects DC circuits from overloads and short circuits

• Breaks both poles simultaneously for safer isolation

• Designed specifically for direct current, which is harder to interrupt than AC

Typical applications

• ☀️ Solar PV systems (panels, combiner boxes, battery lines)

• 🔋 Battery banks

• ⚡ DC power supplies

• 🚗 EV charging / DC control circuits

• 🏭 Industrial DC systems

Key specifications to check

• Poles: 2P (disconnects + and –)

• Rated current: e.g. 6A, 10A, 16A, 32A, 63A

• Rated DC voltage: e.g. 250V DC, 500V DC, 600V DC, 1000V DC
  (must match or exceed system voltage)

• Trip curve:

  • Type B – light loads

  • Type C – most common (inverters, PV)

  • Type D – high inrush currents

• Breaking capacity: e.g. 6kA, 10kA

Important note ⚠️

• Never use an AC MCB for DC circuits.
  DC arcs don’t naturally extinguish, so DC MCBs are built differently (arc chutes, magnetic blow-out).

If you want, tell me:

• Voltage & current

• Application (solar, battery, control panel, etc.)

• Brand you prefer (ABB, Schneider, Siemens, Eaton, etc.)

and I’ll recommend the exact MCB rating you need.

Additional Information:

• Delivery Time: READY STOCK

Product Type

• DC Miniature Circuit Breaker (MCB)

Number of Poles

• 1 Pole (SP)

Rated Current

• 10 Amp (10A)

Rated Voltage (DC)

• Common ratings: 12V DC, 24V DC, 48V DC, 60V DC, 110V DC

• Some models up to 250V DC (always check manufacturer marking)

Breaking Capacity

• Typically 6 kA or 10 kA (DC-rated, lower than AC equivalents)

Tripping Characteristics

• Type B: Trips at 3–5 × In (low inrush loads)

• Type C: Trips at 5–10 × In (inductive loads, motors, solar)

• Type D (less common in DC): High inrush applications

Mounting

• DIN rail (35 mm)

Operation

• Thermal (overload protection)

• Magnetic (short-circuit protection)

• Trip-free mechanism

Polarity

• Polarity-sensitive (LINE + and − must be connected as marked)

• DC MCBs are not interchangeable with AC MCBs

Standards

• IEC 60947-2

• IEC 60898-2 (DC-specific models)

Terminal Capacity

• Typically 1.5 mm² to 25 mm² cable (depends on model)

Operating Temperature

• Usually –25°C to +55°C

Housing

• Flame-retardant, heat-resistant plastic

Common Applications

• Solar PV systems

• Battery banks

• DC distribution boards

• Telecom systems

• EV charging circuits (low-voltage DC)

• Industrial DC control circuits

Important Notes

⚠️ Always use a DC-rated MCB for DC circuits
⚠️ Verify voltage rating before installation
⚠️ Observe correct polarity to ensure proper arc extinction

If you want, I can also provide:

• Wiring diagram

• Comparison with DC fuse

• Selection guide for solar systems

• Manufacturer-specific datasheet (ABB, Schneider, Siemens, etc.)

Additional Information:

• Item Code: IE60947-2
• Production Capacity: 1000
• Delivery Time: BASED ON LOCATION
• Packaging Details: Product Type: DC Miniature Circuit Breaker Rated Current: 10 Amp Poles: 1 Pole (SP) Mounting: DIN Rail (35 mm) Application: Solar PV, DC distribution, battery systems

Product Type

• DC Miniature Circuit Breaker (MCB)

Number of Poles

• 1 Pole (Single Pole)

Rated Current

• 6 Amp (6A)

Rated Voltage (DC)

• Common ratings: 12V / 24V / 48V / 60V / 110V / 220V DC

• Always check manufacturer marking (DC voltage is critical)

Breaking Capacity (Short-Circuit Capacity)

• Typically 6 kA or 10 kA (DC)

Tripping Characteristics (Curve Type)

• Type B: Trips at 3–5 × In (used for resistive loads)

• Type C: Trips at 5–10 × In (used for inductive loads, motors)

• DC systems commonly use Type C

Protection Provided

• Overload protection

• Short-circuit protection

Mounting

• DIN Rail Mounting (35 mm)

Operating Mechanism

• Thermal (overload)

• Magnetic (short circuit)

Applications

• Solar PV systems

• Battery banks

• DC distribution panels

• EV charging circuits

• Telecom power systems

• UPS and inverter DC side protection

Standards

• IEC / EN 60898-2

• IEC / EN 60947-2 (depending on model)

Terminal Capacity

• Typically accepts 1.5 mm² to 16 mm² copper conductors

Operating Temperature

• Usually -25°C to +55°C

Housing

• Flame-retardant thermoplastic

• IP20 (when installed in enclosure)

If you want, I can:

• Suggest specific brands/models

• Provide a datasheet-style table

• Help select the correct DC voltage rating for your application

• Compare DC MCB vs DC MCCB vs Fuse

Additional Information:

• Item Code: IEC70947-2
• Production Capacity: 1000
• Delivery Time: BASED ON LOCATION
• Packaging Details: Each MCB is packed individually In a retail carton/box with protective inserts Includes label with model, rating, batch/serial number Gross weight per unit: ~0.10 kg – 0.15 kg (varies by brand) mitsubishi-electric-eshop.mee.com +1 Package dimensions (single unit): Approx 20 cm × 9.5 cm × 9 cm (common for small breakers) shonccy.en.made-in-china.com Packing style: Carton box + inner cushioning (foam/plastic) to protect during transport

What a DC 1-Pole 20A MCB Is

A DC MCB is a Miniature Circuit Breaker designed specifically for direct current (DC) circuits. Unlike AC, DC doesn’t cross zero each cycle, making arc extinction harder — so breakers for DC must be designed to safely interrupt DC faults.

• 1 Pole (1P): Protects a single DC line (usually the positive line) and isolates it from the supply.

• 20 A Rated Current: Trips when sustained load current exceeds ~20 A.

• DIN-Rail Mountable: Standard 35 mm DIN rail mounting for cabinets/panels.

A DC MCB protects a direct current circuit by automatically disconnecting the circuit during overloads and short-circuit faults. DC arcs do not cross zero like AC, so DC MCBs have special arc-extinguishing design and meet IEC/EN 60947-2 standards for DC interrupting performance. 
Rated Voltage & Use

• 250 V DC is common for many 1P DC MCBs used in industrial/solar combiner boxes. Tracon Electric

• Some models like the Kenbrook Solar Sibass are rated up to 800 V DC (useful for higher voltage solar string circuits).

Recommended 1P 40 A DC MCBs

• L&T 1P DC MCB 40A – DC-rated breaker (130 V DC) for battery/solar low-voltage circuits.

• SB200 DC 1P C 40A MCB – ABB DC MCB with C-curve thermal-magnetic trip.

• 48‑60V DC 1P 40A MCB – Standard low-voltage DC MCB.

• DC Series 40A MCB – Budget DC-rated breaker.

• Schneider Electric 1P 40A MCB – Trusted brand, usable in appropriate DC ranges.

• MCB 40A – Generic 40A MCB option (check DC rating).

•  

Here’s a comprehensive technical summary of a DC-rated 1 Pole 100 Amp Miniature Circuit Breaker (MCB) — designed to protect direct current (DC) circuits (such as solar PV, battery banks, DC feeder/distribution panels, telecom DC power, etc.) from overloads and short-circuits.
op 1P 100 A DC MCB / Circuit Breaker Options

Poles & Function

• GADA 1P 100A DC MCB – Basic DC MCB (250 VDC, 100 A) – suitable for solar/battery protection.

• amiciSmart 600 V DC 100A Breaker – Higher voltage capable (up to ~600 V DC) ideal for solar string circuits.

• 250 VDC 100A DC MCB DIN‑Rail – DIN-rail mount DC breaker (higher quality industrial unit).

• L&T AU15S 100 A MCB – Trusted brand 100 A breaker (check DC rating).

• Conext Link CBK100 100A DC Breaker – In-line DC breaker style for battery/solar DC feed.

• Havells 100A MCB – Common AC MCB often used as disconnect (verify DC suitability before use).

⚠️ Important: Standard AC-only MCBs (like typical Havells AC models) are not safe for DC use unless explicitly rated for DC — DC arcs are sustained and harder to extinguish, requiring DC-rated breakers.

 Typical Uses

• DC solar PV string protection

• Battery bank / DC distribution panels

• Telecom and industrial DC power protection

•  Mechanical & Environmental

  • Mounting: Standard 35 mm DIN-railProtection Degree: Usually IP20 (basic touch protection). Mechanical Life: ~10,000 – 20,000 operations.  

  • Electrical Life: ~1,500 – 4,000 operations depending on design and voltage rating. 

  • Ambient Temp Range: Typically –35 °C to +70 °C (varies by model). 

  • Cable Size: Terminals commonly support ~2.5 – 35 mm² depending on design. 

Products available as per the customer requirement, Our products is highly appreciated by customers.

DC VOLTAGE AND AMPERE 
WE HAVE AVAIBLE DIRECT 20 AMPERE
AND ALSO AVAIBLE DC AMPERE MATER SELECBLE 0-75mVA 

DC AMPERE AND VOLTAGE METER BRAND MULTISPAN USE IN SOLAR INDUSTRY AND TELECOM INDUSTRIES ALSO EV VIHCAL..