3RW4076-2BB44
The 3RW4076-2BB44 and 6BB44 have the same electrical specifications. The difference is that the auxiliary and control circuits use spring terminals instead of screws for fastening. The wires are quickly clamped and not easy to loosen, making them suitable for production line distribution panels that require frequent maintenance.
Product Positioning
The 3RW4076-2BB44 is a version of the 3RW4076 series that uses spring terminals. It still has a rated current of 432A and can complete wiring without the need for screws and tools, improving installation and maintenance efficiency.
Core Product Advantages and Features
Spring-type terminals
The auxiliary and control circuits use spring clip terminals, which can be crimped and wired without screws.
Improved installation efficiency
Eliminating the need to tighten each screw individually can shorten on-site work time during large-scale wiring installations.
Electrical specifications remain unchanged
The rated current and power are consistent with the screw terminal models in the same series, and the selection and replacement will not affect the performance.
600V insulation class
The terminal insulation voltage reaches 600V, which meets the safety isolation requirements of general industrial switchboards.
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3RW4076-6BB44
The 3RW4076-6BB44 has a rated current of 432A and is compatible with a voltage range of 200 to 460V AC. It comes with a 230V AC control power supply and screw terminals, features a smooth start-up process, and has a bypass operation mechanism to reduce heat loss.
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3RW4075-6BB44
The 3RW4075-6BB44 has a rated current of 356A, corresponding to a voltage range of 200 to 460V AC and a control power supply of 230V AC. It has a built-in thyristor bypass system and motor overload protection, making it more energy-efficient and safer to operate.
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3RW4075-6BB35
The 3RW4075-6BB35 is designed for 400 to 600V AC high-voltage main circuits, paired with a 115V AC control power supply. It is commonly used in US standard panel wiring and has a rated current of 356A, which can support the smooth start of medium and large three-phase motors.