What parts of my solar power system is this circuit breaker designed to protect?

This 2-pole DC breaker works as a main disconnect and overcurrent protector for your solar panel array or battery bank. It safely isolates both the positive and negative lines simultaneously. The C-curve trip design handles moderate startup surges from your inverter and charge controller without tripping falsely.

Can I use a standard AC breaker for my DC solar battery bank instead of this model?

No, you should not use standard AC breakers for DC solar systems. This breaker is rated for up to 600V DC to safely extinguish the continuous electrical arcs that DC current creates. AC breakers cannot extinguish these arcs, which creates a serious fire hazard in a PV setup.

How do I mount this circuit breaker and does the wiring polarity matter?

This breaker snaps directly onto a standard DIN rail in any physical orientation. Yes, polarity is critical because the device has clearly marked positive (+) and negative (-) terminals. You must wire it matching these labels to ensure the internal arc-extinguishing magnets work correctly during a fault.

2P DC MCB 600V 125A 100A 80A Circuit breaker FOR PV System C curve Battery Main Switch

Name: 2P DC MCB 600V 125A 100A 80A Circuit breaker FOR PV System C curve Battery Main Switch
Brand: Compel
SKU: GENE-00052
Price: 28.95 USD
Availability: InStock

Stock #:TBS-03508

SKU:GENE-00052

2P DC MCB 600V 125A 100A 80A Circuit breaker FOR PV System C curve Battery Main Switch - Image 1

$28.95

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2P DC MCB 600V 125A 100A 80A Circuit breaker FOR PV System C curve Battery Main Switch

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Questions about this product

What parts of my solar power system is this circuit breaker designed to protect?: This 2-pole DC breaker works as a main disconnect and overcurrent protector for your solar panel array or battery bank. It safely isolates both the positive and negative lines simultaneously. The C-curve trip design handles moderate startup surges from your inverter and charge controller without tripping falsely.
Can I use a standard AC breaker for my DC solar battery bank instead of this model?: No, you should not use standard AC breakers for DC solar systems. This breaker is rated for up to 600V DC to safely extinguish the continuous electrical arcs that DC current creates. AC breakers cannot extinguish these arcs, which creates a serious fire hazard in a PV setup.
How do I mount this circuit breaker and does the wiring polarity matter?: This breaker snaps directly onto a standard DIN rail in any physical orientation. Yes, polarity is critical because the device has clearly marked positive (+) and negative (-) terminals. You must wire it matching these labels to ensure the internal arc-extinguishing magnets work correctly during a fault.

2P DC MCB 600V 125A 100A 80A Circuit breaker FOR PV System C curve Battery Main Switch spec sheet (PDF)

Get a one-page sheet with full description, specifications, technical details, FAQs, price & SKU - handy to save, print, or share.

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Engineered for demanding photovoltaic systems, this 2P DC MCB circuit breaker delivers reliable 600V DC protection with a robust 125A, 100A, or 80A rating. Its C curve tripping characteristic ensures optimal coordination for battery and inverter circuits, providing essential safety and system uptime for your solar installation. Features and Benefits - 600V DC Voltage Rating - Specifically designed for the higher voltage demands of modern PV arrays and battery banks, offering superior protection compared to standard AC breakers. - 125A/100A/80A Current Ratings - Available in three common capacities to match your system's main DC feed or battery string requirements precisely. - C Curve Trip Characteristic - Provides a balanced magnetic trip response, ideal for protecting cables and equipment with moderate inrush currents like inverters and charge controllers. - 2-Pole (2P) Design - Simultaneously interrupts both the positive and negative DC conductors, ensuring complete circuit isolation and enhanced safety during maintenance or a fault. - Durable Construction - Built with high-quality materials and a robust mechanism for reliable performance and long service life in varied environmental conditions. - Clear ON/OFF Indication - Features a visible switch position for quick and safe verification of the circuit status at a glance. Applications - PV Array Main Disconnect - Serves as the primary isolation and overcurrent protection device for the DC side of a solar power system. - Battery Bank Main Switch - Provides essential protection and a master shut-off for energy storage systems using lead-acid or lithium-ion batteries. - Inverter/Charge Controller Protection - Safeguards critical power conversion equipment from overloads and short circuits on the DC input lines. - DC Combiner Box Integration - An ideal component for protecting individual PV string outputs before they are combined into a main DC feeder. Note Always consult local electrical codes and a qualified professional for proper system design, installation, and breaker sizing to ensure safety and compliance.

Breaking Capacity: 10kA. Rated Operational Voltage: 600 V DC. Poles: 2. Rated Current: 80 A, 100 A, 125 A. Tripping Characteristic: C. Mounting Type: 35mm DIN Rail. Certification: CE, ISO9001, IQNET, CCC. Material (Contacts): Silver Alloy. Material (Housing): Thermoplastic, UL94 V-0 rated. Rated Impulse Withholding Voltage (Uimp): 8kV (Inferred). Rated Insulation Voltage (Ui): 800V DC (Inferred). Rated Operational Voltage (Ue): 600V DC. Breaking Capacity (Icu): 10kA (Inferred for PV DC applications). Connection Capacity: 50 mm² (Inferred for 125A). Operating Temperature Range: -25°C to +70°C. Storage Temperature Range: -40°C to +85°C. Operating Position: Any (Universal Mounting). Protection Degree (IP Rating): IP20 (Inferred for panel mount). Standards Compliance: IEC/EN 60947-2, UL 489B (Inferred for DC). DC Polarity Marking: Positive (+) and Negative (-) clearly labeled. Electrical Endurance: 2,000 operations at rated current. Isolation Distance: ≥ 8mm (Creepage and Clearance for 600VDC). Mechanical Endurance: 10,000 operations minimum. Mounting Style: DIN Rail Mount (35mm). Pole Configuration: 2P (Two-Pole). Rated Current (In): 125A, 100A, 80A (Selectable/Variant). Terminal Torque: 15-20 Nm (Inferred). Terminal Type: Stud or Compression (Inferred for high current DC). Trip Characteristic Curve: C Curve. Q: What are the specifications for this 2P DC MCB circuit breaker? A: This is a 2-pole DC Miniature Circuit Breaker rated for 600V DC. It is available in three current ratings: 125A, 100A, and 80A, and features a C-type tripping curve for standard applications.. Q: How durable is this 600V DC MCB for a PV system? A: This circuit breaker is built for robust performance in demanding environments like solar installations. It features a high-quality construction with durable contacts and a reliable mechanical trip mechanism designed for long-term use.. Q: Is this 125A DC circuit breaker compatible with my battery bank? A: Yes, this DC MCB is specifically designed as a main switch for battery banks and PV systems. Its 600V DC rating and C curve make it suitable for protecting DC circuits from overloads and short circuits in solar and battery storage applications.. Q: Does this PV system circuit breaker come with a warranty? A: Warranty details are not specified for this product. We recommend contacting the seller directly to inquire about any specific warranty or guarantee coverage before purchase.. Q: Is this a good value for a 100A DC main switch? A: Yes, this offers excellent value for DIY enthusiasts and professionals seeking quality without premium brand pricing. It delivers reliable performance for regular use in solar and battery backup systems..