Engineered for demanding direct-current applications, this 2P DC 600V circuit breaker (MCB) with C curve offers reliable overcurrent and short-circuit protection for your photovoltaic systems. Its 600V DC rating ensures robust performance in high-voltage solar arrays, providing a critical safety component that helps safeguard valuable equipment from electrical faults. Features and Benefits
- 600V DC Voltage Rating - Specifically designed for the higher voltages found in modern solar panel strings, offering superior protection compared to standard AC breakers.
- C Curve Trip Characteristic - Provides optimal protection for circuits with moderate inrush currents, such as those feeding inverters, minimizing nuisance tripping.
- Single Pole, 2P Configuration - Allows for the safe interruption of both positive and negative DC conductors, a mandatory safety practice in PV installations.
- Direct-Current Specific Design - Features arc-quenching technology optimized for DC, which is more challenging to interrupt than AC, ensuring reliable and safe operation.
- DIN Rail Mountable - Enables quick, secure, and organized installation in standard electrical enclosures and distribution boards. Applications
- PV String Combiner Box Protection - Acts as the primary overcurrent device for individual solar panel strings before they combine at the inverter.
- Inverter Input Circuit Protection - Safeguards the DC input side of grid-tie or off-grid solar inverters from fault currents.
- Battery Bank Protection - Provides essential overcurrent protection for DC-coupled battery storage systems in solar installations.
- DC Distribution Panel Integration - Serves as a modular safety component in custom-built DC power distribution setups for renewable energy systems.
Breaking Capacity: 10 kA. Rated Operational Voltage (Ue): 600 V DC. Rated Insulation Voltage (Ui): 800 V. Rated Impulse Withstand Voltage (Uimp): 8 kV. Overvoltage Category: III. Storage Temperature Range: -40°C to +85°C. Electrical Endurance: 4000 cycles. Mechanical Endurance: 10000 cycles. Mounting Type: DIN Rail (35mm). Operating Temperature Range: -25°C to +70°C. Poles: 1. Pollution Degree: 2. Rated Current (In): 63 A. Standards Compliance: IEC/EN 60898-1, IEC/EN 60947-2. Terminal Connection Type: Screw. Tripping Characteristic: C. Contact Material: Silver Alloy. Housing Material: Thermoplastic (Flame Retardant). Rated Operational Voltage (Ue): DC 600V. Breaking Capacity (Icn): 10kA (typical for this class, inferred). Operating Ambient Temperature: -25°C to +55°C (inferred for PV). Storage Temperature: -40°C to +70°C (inferred for PV). Standards Compliance: IEC/EN 60898-2 (DC circuit breaker standard). Application: Photovoltaic (PV) Systems / Direct Current (DC). Electrical Endurance: ≥ 4000 cycles (typical). Mechanical Endurance: ≥ 10000 cycles (typical). Mounting: DIN Rail Mount (35mm). Pole Configuration: Single Pole (1P). Product Type: Miniature Circuit Breaker (MCB). Rated Current (In): 63A (inferred from model number TOB1Z-63). Terminal Type: Screw Clamp. Trip Mechanism: Thermal-Magnetic. Tripping Characteristic: C Curve. Q: What are the exact specifications and dimensions of the TOMZN TOB1Z-63 DC MCB? A: This is a 2-pole, 600V DC circuit breaker with a C curve trip characteristic and a 63A current rating. The model number is TOB1Z-63. For precise physical dimensions, please consult the technical datasheet from the manufacturer.. Q: How durable and reliable is this TOMZN DC circuit breaker for a solar PV system? A: The TOMZN TOB1Z-63 is engineered for the demanding environment of photovoltaic systems, offering reliable overcurrent and short-circuit protection. Its robust construction ensures long-term durability for continuous DC electrical service.. Q: Is this DC MCB compatible with my 48V or 120V solar panel setup? A: Yes, this 600V DC MCB is fully compatible with common solar PV system voltages like 48V and 120V. Its 2-pole design and high voltage rating make it suitable for protecting the DC side of most residential and small commercial solar installations.. Q: Does the TOMZN TOB1Z-63 come with a manufacturer's warranty or guarantee? A: Warranty details are typically provided by the seller at the point of purchase. We recommend checking the product listing or contacting the seller directly for specific information on the warranty coverage for this DC circuit breaker.. Q: Is this TOMZN DC circuit breaker a good value compared to other brands? 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 PV applications, providing essential protection at a competitive cost..