DIHOOL Main 160 Amp DC Circuit Breaker User Manual

Mynd: Framan view of the DIHOOL 160 Amp DC Circuit Breaker, showing the ON/OFF handle and product labeling. The label indicates "DIHOOL DHM1B-300 160A" and various electrical specifications.

Mynd: This image illustrates the superior properties of the Bakelite enclosure used in DIHOOL circuit breakers compared to PA66 enclosures. Bakelite maintains structural stability above 150°C, offers excellent insulation performance unaffected by humidity, and is less prone to aging and cracking. PA66 may soften above 100°C, has reduced insulation resistance in high humidity, and can suffer surface detachment from chemical corrosion.

Mynd: A comparison highlighting the high-quality thickened copper parts used in DIHOOL circuit breakers versus inferior copper contacts. DIHOOL uses silver contacts for larger conductive contact area and stronger current-carrying capacity, ensuring enhanced conductivity and extended service life. Low-cost plastic cases with thin copper contacts have poor conductivity, corrosion resistance, and are susceptible to overheating under load.

Mynd: The DIHOOL 160 Amp DC Circuit Breaker shown with its primary dimensions: 73mm width and 163mm height. This view also reiterates its function as a car battery protector circuit breaker, 2P, 160A, DC12V~400V, with thermal overload protection.

Mynd: A hlið view of the DIHOOL 160 Amp DC Circuit Breaker, indicating a depth of 86mm from the mounting surface to the front of the unit. This provides crucial information for enclosure and panel design.

Mynd: Detailed technical drawing showing the dimensions of DHM1B type circuit breakers across different current ratings (100A-125A, 160A-400A, 500A-600A). The 160A model falls under the 160A-400A category, showing specific measurements for width, height, depth, and terminal sizes, including a width of 74mm and a height of 164mm for the main body, and terminal dimensions for M8 screws.

Mynd: A table detailing the specifications for the DHM1B series of circuit breakers, including rated current range (100A-400A), poles (1P/2P), rated voltage (DC12V-500V), insulation voltage (1000V), rated impulse withstand voltage (6kV), rated breaking capacity (25kA), thermo-magnetic release characteristic (Curve 4-6In), electrical and mechanical life cycles, installation method, ambient temperature range, terminal connection type, tightening torque, and international standard compliance.

Mynd: A wiring diagram illustrating the connection of the DIHOOL 160 Amp DC Circuit Breaker within a 12V/24V battery system. The circuit breaker is placed between the battery and a power inverter, which then connects to a load (represented by a light bulb). This setup demonstrates its role in protecting the circuit from the battery to the inverter.

Mynd: A comprehensive wiring diagram for a solar power system, showing the integration of a solar panel, hybrid inverter, power grid, battery, solar DC disconnect switch, and a high current DC circuit breaker. The high current DC circuit breaker is positioned between the battery and the hybrid inverter, providing essential protection for the battery bank.

Mynd: Sjónarhorn view of the DIHOOL 160 Amp DC Circuit Breaker with thick red and black wires connected to its terminals, demonstrating the appropriate wire gauge for high current applications. The image also indicates the supported wire range of 16-70mm² (6AWG-2/0AWG).

Mynd: Nærmynd view of the top terminals of the DIHOOL DC Circuit Breaker, indicating "No Polarity" for the positive (+) and negative (-) connections. This highlights the flexibility in wiring without concern for specific terminal polarity.

Mynd: This graphic demonstrates the non-polarity feature of the circuit breaker, showing that both "Top in / Bottom out" and "Bottom in / Top out" wiring configurations are acceptable. This flexibility simplifies installation and ensures proper function regardless of current direction.

Mynd: Illustrations demonstrating three common installation methods for the circuit breaker: Wall Mounting (using self-tapping screws and expansion nuts), Wooden Panel Installation (using self-tapping screws), and Installation inside a Distribution Box (using screws and hex nuts). Each method shows the appropriate hardware for secure mounting.

Mynd: The DIHOOL 160 Amp DC Circuit Breaker displayed alongside an Allen key, indicating that this tool is included for terminal tightening during installation.

Mynd: A table detailing the recommended wire gauges (AWG/MCM) for different current ratings (100A to 600A) across DHM1B, DHMIX, and DHM3Z models, confirming that corresponding terminals are provided. For the 160A DHM1B model, it indicates support for up to 2 AWG wire.

Mynd: A diagram illustrating the operational steps for the circuit breaker. Step 1 shows pushing the handle DOWN to switch OFF. Step 2 shows pushing the handle UP to switch ON. A crucial note states: "Unable to push the handle UP in the Trip OFF state. Perform handle down first, then handle up. On power." It also indicates that pressing the RED button will trip the switch from either ON or OFF positions, resulting in "Trip OFF - No electricity."

Mynd: This graphic compares the tripping sensitivity of different protective devices: Fuses (10µs-0.1s), Miniature Circuit Breakers (0.05-0.1s), and Molded Case Circuit Breakers (0.1-0.2s). It addresses the question "Why did the fuse burn out but my breaker didn't trip?" explaining that for a 250A Type DHMIX MCCB, the short-circuit current must reach 2.5kA for instantaneous tripping, indicating different response characteristics for various protection types.