SB75 EV Power Connector Set

The SB75 CONNECTOR SET (00d6) is a heavy-duty, high-current electrical interlock system engineered for electric scooters, commercial e-rickshaws, battery packs, and high-power industrial equipment. Designed to bridge high-amperage battery lines, motor controllers, and off-board charging stations, this set features a color-keyed, genderless housing configuration that simplifies installation and eliminates accidental polarity misconnection.

Constructed with a rugged, impact-resistant polycarbonate shell and high-conductivity silver-plated copper terminal contacts, the SB75 connector set is built to withstand high temperatures, heavy physical shock, and continuous road vibration. Supporting continuous direct current loads up to 75 Amps across 12V to 60V DC (and rated up to 600V max), it provides exceptional heat dissipation, minimal voltage drop, and long-term mating reliability for demanding EV operating environments.

Key Features

• 75A High-Current Rating: Engineered to carry up to 75 Amps of continuous current for medium-to-heavy EV power distribution and fast charging loops.
• Genderless Housing Design: Interchangeable connector halves reduce inventory needs and make field mating fast and effortless.
• Silver-Plated Copper Contacts: Low-resistance terminal contacts ensure optimal conductivity, reducing internal heat buildup and voltage loss under heavy loads.
• High-Impact Polycarbonate Shell: Flame-retardant, thermal-resistant housing protects internal electrical connections against mechanical shock and road debris.
• Color-Keyed System Safety: Mechanical keying features ensure identical voltage sub-systems connect seamlessly while preventing accidental cross-voltage plugging.

2x SB75 Interlocking Housing Halves (genderless polycarbonate connector shells)

4x High-Current Terminal Pins (heavy-duty silver-plated copper crimp contacts)

Suitable Vehicle Types & Applications

• Commercial E-Rickshaws & L3/L5 Vehicles: High-capacity main power plug connecting battery banks directly to traction motor controllers.
• High-Power Electric Scooters & E-Bikes: Quick-disconnect battery harness connector for removable or swappable lithium battery modules.
• Custom EV Conversions & Battery Test Rigs: Standardized high-current connector interface for custom battery pack builds and workshop diagnostic benches.

System & Electrical Compatibility

• Wide 12V–60V DC Sub-Circuits: Operates cleanly across standard 12V to 60V DC battery power rails, controller buses, and high-amperage DC charging setups.
• Standard Heavy-Gauge EV Wiring: Compatible with standard 12 AWG to 6 AWG copper conductor cables.

1. Isolate Power & Prepare Heavy Wire Leads:

Turn off the key ignition, trip the main DC circuit breaker, and disconnect the battery pack. Strip 10mm–12mm of insulation from the 12 AWG to 6 AWG copper battery and controller power wires.

Verification: Check with a multimeter to confirm zero live voltage is present on the exposed wire ends.

2. Crimp Silver-Plated Contacts:

Insert the stripped copper strands into the included silver-plated terminal pins. Crimp firmly using a heavy-duty hexagonal or indent crimping tool (or perform a complete solder fill).

Verification: Perform a strong pull test on each wire to ensure the terminal contact is tightly bonded to the copper wire without movement.

3. Insert Contacts into Polycarbonate Housing:

Push the crimped terminal pins into the rear of the SB75 connector housing until the internal leaf spring snaps behind the contact lip.

Verification: An audible click is heard, and pushing back gently on the wire confirms the pin is securely locked inside the shell.

4. Mate Connector Set & Verify Power Loop:

Align the two genderless housing halves and press them firmly together until completely seated. Reconnect the main battery terminals and reset the circuit breaker.

Verification: Power transfers continuously through the connection with zero heating or loose play when wiggled.

Power Isolation: Always turn off the ignition, trip the main circuit breaker, and disconnect the battery pack before servicing high-amperage power connectors.

Contact Surface Care: Regularly inspect the silver-plated copper contacts for pitting, carbon buildup, or oxidation; clean with an electrical contact cleaner or dry lint-free cloth.

Housing Integrity: Check the polycarbonate shells for cracks, heat discoloration, or loose spring tension to maintain a firm, low-resistance connection.