3RT20261BB400CC0

Siemens 3RT2026-1BB40-0CC0 Power Contactor 24V DC 25A/11kW
Siemens 3RT2026-1BB40-0CC0 Power Contactor 24V DC 25A/11kW

S0 frame three-pole power contactor, AC-3 rated 25A/11kW (400V), 24V DC standard coil, screw terminal wiring, built-in 1NO+1NC auxiliary contacts, suitable for motor direct start control circuits.

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Siemens 3RT2026-1BB40-0CC0 Power Contactor 24V DC 25A/11kW
Product Positioning

This Siemens SIRIUS 3RT2026-1BB40-0CC0 is a three-pole power contactor with an S0 frame. The main circuit is rated at 25A and 400V AC-3, which can control an 11kW motor load. The coil is a standard 24V DC type and has no built-in surge suppression component. Both the main and auxiliary circuits use traditional screw terminal wiring, which is convenient for using existing wiring methods and spare parts specifications. It is a common basic choice for control panel replacement and new construction projects.

Core Product Advantages and Features
25A/11kW main circuit strength
The AC-3 has a rated current of 25A and corresponds to a motor power of 11kW at 400V. The S0 standard frame is compatible with the main contacts of the 3RT2026 series, making it more than capable of directly starting general loads such as pumps, fans, and conveyors.
24V DC standard coil
The coil voltage is 24V DC. It does not have a built-in rheostat or diode suppression component. The coil circuit configuration is flexible and can be matched with external surge protection according to the output type of the PLC on site.
Screw terminals are easy to maintain
Both the main circuit and the auxiliary circuit use screw terminals. The main circuit can be connected to 1–10mm² wires, and the auxiliary circuit can be connected to 0.5–2.5mm² wires. No additional spring tools are needed when wiring the maintenance panel.
1NO+1NC auxiliary contact
It has one set of normally open and one set of normally closed instantaneous auxiliary contacts built in, which can directly feed back the contactor's operating status to the PLC or indicator light circuit, reducing the cost of installing additional auxiliary contact sockets.
project Specification
Coil voltage/type 24 V DC Standard Type (without built-in suppression components)
AC-3 Rated Current 25 A
AC-3 Rated Power (400V) 11 kW
Rated operating voltage Up to 690 V AC
Rated insulation voltage Ui 690 V
Rated impulse withstand voltage Uimp 6 kV
Main circuit type 3. Normally Open (3NO)
Auxiliary contacts 1 NO + 1 NC Instantaneous
Terminal type Screw terminals (main/auxiliary)
Main circuit wiring diameter 1–10 mm² (single/twisted wire)
Auxiliary circuit wiring diameter 0.5–2.5 mm²
Mechanical life 10,000,000 times
Protection level IP20 (Front end of terminal)
Pollution level Level 3
External dimensions (width × height × depth) 45×85×107 mm
weight Approximately 0.6 kg

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