3RT2026-1BW40

The 3RT2026-1BW40 features a 48V DC coil design, with a main circuit rated at AC-3 25A/11kW/400V, 1NO+1NC auxiliary contacts, and screw terminals. It is commonly used in special power supply environments such as machine tools, ships, and telecommunications equipment rooms where 48V is the standard control voltage.

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Siemens 3RT2026-1BW40 48V DC coil contactor 25A 11kW

Product Positioning

The 3RT2026-1BW40 is an S0 housing contactor in the SIRIUS 3RT2 series with a coil voltage of 48V DC. 48V is a commonly used control voltage level in some communication equipment rooms, marine power systems, or areas with specific safety requirements. Selecting a contactor with the corresponding coil voltage can avoid the need for additional transformers or voltage regulator modules, simplify panel design, and reduce potential failure points.

Core Product Advantages and Features

48V DC coil

It is compatible with 48V DC control power supply systems, eliminating the need for additional step-down/voltage stabilization devices.

AC-3 25A/11kW main circuit

The 3-pole design meets the start-stop requirements of most small and medium-sized three-phase motors.

1NO+1NC auxiliary contact

It can be directly used for status feedback, interlocking, or alarm circuit wiring.

690V high insulation class

Both the main circuit and the auxiliary circuit have passed the 690V insulation test, improving the safety margin of the panel.

project	Specification
model	3RT2026-1BW40
AC-3 rated current	25 A
AC-3 Rated Power (400V)	11 kW
Extreme number	3P
Coil Specifications	48 V DC
Auxiliary contacts	1 NO + 1 NC
Main circuit terminals	Screw terminals
net weight	Approximately 0.592 kg
Rated usage category	AC-3 (Motor Start/Stop)
Insulation voltage (pollution level 3)	690 V
Rated impulse withstand voltage	6 kV
Frontal protection level	IP20 (according to IEC 60529)
Mechanical life (typical value)	10 million cycles
Ambient operating temperature	-25°C ~ +60°C
Applicable Standards	IEC 60947-4-1 / IEC 60947-5-1
chassis code	S0
Installation method	35mm DIN rail or panel locking

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3RT2026-1FB40

The 3RT2026-1FB40 is also a 24V DC coil, but it uses a plug-in diode combination instead of a varistor for surge suppression. It has an AC-3 rated capacity of 25A/11kW, 1NO+1NC auxiliary contacts, and an insulation voltage of 690V. It is suitable for applications that require simple circuitry and where the suppression components can be replaced individually.

3RT2026-1BP40

The 3RT2026-1BP40 is a 230V DC coil specification. The main circuit maintains the standard AC-3 25A/11kW/400V rating, with 1NO+1NC auxiliary contacts. It is suitable for existing 230V DC control power supplies and is a spare part for existing panel retrofits or repairs that do not require additional step-down modules.

3RT2026-1BG40

The 3RT2026-1BG40 uses a 125V DC coil and is a direct replacement for the 3RT1026 series contact sockets of the same specifications. It features an AC-3 rated 25A/11kW/400V main circuit, 1NO+1NC auxiliary contacts, and screw terminals, making it suitable for maintenance and replacement of DC control circuits in distribution panels.