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Miniature Circuit Breakers
  • Screw Type Terminal Circuit Breaker for Generators Programmable Circuit Breaker
  • Screw Type Terminal Circuit Breaker for Generators Programmable Circuit Breaker
  • Screw Type Terminal Circuit Breaker for Generators Programmable Circuit Breaker
  • Screw Type Terminal Circuit Breaker for Generators Programmable Circuit Breaker
  • Screw Type Terminal Circuit Breaker for Generators Programmable Circuit Breaker
Screw Type Terminal Circuit Breaker for Generators Programmable Circuit Breaker

Screw Type Terminal Circuit Breaker for Generators Programmable Circuit Breaker

  • 288 - 1151 Pieces
    $5.23
  • 1152 - 3455 Pieces
    $4.65
  • >= 3456 Pieces
    $4.06

Customization:

Customized packaging（Min.Order: 100000 pieces）
View product details

Screw Type Terminal Circuit Breaker for Generators Programmable Circuit Breaker

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Overcurrent/Short-Circuit Protection: Designed to safeguard electrical circuits in generators and systems by interrupting power flow during overloads or faults, featuring a BCD curve (C) for precise protection.
  • Programmable Settings: Adjustable parameters allow customization of trip thresholds to match specific application requirements, enhancing flexibility.
  • Screw Terminal Connectivity: Enables secure and durable wiring for reliable power distribution in demanding environments.

Key features

  • 1. Material Technology

    • With reinforced plastic construction, ensure durability in harsh environments while maintaining a lightweight design. The compact, rugged build with rounded edges and ventilation slots enhances heat dissipation and resistance to physical stress.

  • 2. Interactive Design

    • With a manual toggle handle and front inspection slot, enable easy on/off operation and visual monitoring of internal components. The intuitive design simplifies installation and maintenance in tight spaces.

  • 3. Performance Parameters

    • With a 6kA breaking capacity and 50A rated current, protect circuits against overloads and short circuits effectively. The BCD curve ensures precise tripping characteristics, offering ~20% faster response than standard models* [*Disclaimer: Based on internal testing; actual results may vary].

  • 4. Scenario Solutions

    • With a compact, mountable design featuring four mounting holes, this breaker is ideal for space-constrained environments like vehicles, machinery, or industrial systems. Its compatibility with both AC and DC applications expands its utility across diverse settings.

  • 5. Certification Standards

    • Complies with safety standards for electrical components, ensuring reliable performance in critical systems* [*Disclaimer: Certifications subject to manufacturer’s confirmation]. The LI protection type combines magnetic and thermal safeguards for robust circuit management.

Product details

Screw Type Terminal Circuit Breaker for Generators Programmable Circuit Breaker

The Chinehow Screw Type Terminal Circuit Breaker is a compact, durable electrical protection device designed for generators and industrial systems. Built with plastic for lightweight reliability, it features a screw terminal design, a manual operation handle, and robust 6kA breaking capacity. Available in AC/DC configurations, it ensures precise overload and short-circuit protection with a BCD curve C rating.

Technical specifications

FeatureSpecificationApplication Scenario
MaterialPlasticCost-effective solutions for industrial equipment
Breaking Capacity6kASafeguarding circuits against high-current faults
Rated Current50APower distribution in generators and machinery
Voltage Rating240V/250V AC, 250V DCVersatile use in AC/DC systems
Protection TypeBCD Curve C (LI)Overload and short-circuit protection in motors/generators
Number of Poles1 PoleSimplified wiring in single-phase circuits

Customization guide

Adjustable parameters:

  • Material: Upgrade to metal housing for extreme environments (e.g., corrosive or high-temperature zones).
  • Pole Configuration: Customize to 2/3 poles for multi-phase systems.
  • Curve Adjustment: Tailor protection curves (e.g., BCD to B) for specific load requirements.

Get inspired

With its compact design and programmable features, this breaker is ideal for safeguarding generator systems, industrial machinery, and automotive electronics. Its screw terminals ensure secure, vibration-resistant connections in tight spaces.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Breaking Capacity6kA (Standard)7kA (+16.7%)8kA (+33.3%)
Rated Current50A63A80A
Protection LevelIP54IP65IP67
Curve FlexibilityFixed BCD Curve CAdjustable B/C/DFull programmability

Supplier's note

  1. Technical Breakthroughs:

    • BCD Curve C: Enables precise overload protection for generator applications.
    • 6kA Breaking Capacity: Exceeds industry standards for AC/DC fault interruption.
    • Screw Terminal Design: Reduces connection errors in high-vibration environments.

  2. Optimal Version Selection:

    • Base Model: Ideal for standard industrial setups (e.g., small generators) requiring 50A protection.
    • Advanced Model: Suitable for heavy machinery with higher current demands (63A) and outdoor use (IP65).
    • Pro Model: Best for extreme scenarios like offshore platforms or data centers, offering 80A capacity and IP67 waterproofing. With its programmable curve, it adapts to custom load profiles, ensuring unmatched reliability.

Frequently asked questions

  • Which miniature circuit breaker suits generator applications with 50A rated current?

  • How do I maintain the contacts of a plastic miniature circuit breaker?

  • Plastic vs. Metal miniature circuit breakers: Which is better for outdoor use?

  • Can this DC/MCB support custom mounting for tight spaces?

  • Is this programmable circuit breaker IEC/UL certified?

  • Which MCB works for both AC and DC systems up to 50A?

  • What miniature circuit breaker handles 50A high-current generator loads?

  • Does this MCB provide overload and short-circuit protection for generators?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Standard MCB (Industry Standard)Residential circuits, low-power systemsBreaking Capacity: 5KA (IEC 60947-2)
Material: Plastic (UL94 HB)
Rated Current: 40A		Cost-effective, widely compatible with basic systemsLimited surge protection (▲1KA deficit vs. Our Base)
Lower current capacity
Our Base ModelCommercial generators, light industryBreaking Capacity: 6KA (▲1KA)
Rated Current: 50A (▲10A)
Type: DC/AC Dual Compatibility		Enhanced safety for moderate loads
IEC 60947-2 certified		Slightly higher cost than industry standard
Our Advanced ModelHeavy machinery, high-power systemsBreaking Capacity: 8KA (▲2KA)
Material: Reinforced Plastic + Metal (▲ durability)
Rated Current: 63A (▲13A)		Superior surge resistance
Extended lifespan in harsh environments		Higher price point
Larger footprint
High-Breaking Capacity MCBData centers, industrial plantsBreaking Capacity: 10KA+
Rated Current: 63A+
Type: Magnetic Trip Only		Unmatched surge protection for critical infrastructureBulky design
Expensive and niche application
Thermal-Magnetic MCBElectronics, sensitive equipmentDual Trip Mechanism (Thermal + Magnetic)
Rated Current: 40A–63A
Protection: LI+		Precise overload protection for delicate systemsSlower response to extreme surges
Complex calibration
DC-Specific MCBSolar systems, EV chargingDC Arc Suppression (IEC 60947-2 DC)
Rated Current: 50A (DC)
Type: DC-Optimized		Safe for DC circuits with reduced arc riskIncompatible with AC systems
Higher cost vs. standard MCBs

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The comparison data is based on manufacturer information and industry standards. Actual results may vary depending on individual use cases. It is advisable to verify details with the supplier for the most accurate information.