3RW4037-1BB05

SIRIUS 3RW40 Series S2 Base Soft Starter, rated current 63A, rated operating voltage extended to 400...600V AC, 24V AC/DC control power supply with screw terminals, standard type without thermal resistor input design.

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Siemens 3RW4037-1BB05 soft starter, wide voltage 24V control model (appearance image)

Product Positioning

The 3RW4037-1BB05 is a SIRIUS 3RW40 series S2 frame soft starter with a rated current of 63A. The rated operating voltage is increased to 400...600V AC, while maintaining a 24V AC/DC control power supply design, making it easy to reuse in existing systems.

Core Product Advantages and Features

Wide voltage range

Rated operating voltage covers up to 600V AC, suitable for motors in higher voltage power supply systems.

24V control power supply

It uses the common 24V AC/DC power supply found in general PLCs or control panels, making integration convenient.

Screw terminal wiring

With traditional wiring methods, on-site construction workers can directly follow existing work habits.

Adjustable current limit

Adjust the current limiting value according to the motor starting characteristics to reduce the impact of instantaneous surge on the power grid.

project	Specification
Product Series	SIRIUS 3RW40 Simplified Soft Starter
Base size	S2
Rated operating current Ie	63 A
Rated operating voltage Ue	400...600 V AC
Control power supply voltage	24 V AC/DC
Terminal block type	Screw terminals
Motor protection methods	Standard type (excluding thermal resistor input)
Control method	Two-phase control, third-phase direct connection
Break away from level	Class 10
Built-in functions	Bypass contactor, adjustable current limiter
Applicable ambient temperature	-25°C to +60°C (reduction in usage is required above 40°C)
Applicable occasions	Pumps and fan motors powered by 400-600V medium-high voltage.

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