3RT2026-2FB40

Siemens 3RT2026-2FB40 Power Contactor 24V DC 25A/11kW Built-in Diode
Siemens 3RT2026-2FB40 Power Contactor 24V DC 25A/11kW Built-in Diode

S0 frame power contactor, AC-3 rated 25A/11kW (400V), 24V DC coil with built-in diode suppression, fast power-off release response, spring terminals, 1NO+1NC auxiliary contacts.

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Siemens 3RT2026-2FB40 Power Contactor 24V DC 25A/11kW with Built-in Diode
Product Positioning

The Siemens SIRIUS 3RT2026-2FB40 is also an S0 frame contactor. The AC-3 main circuit is rated at 25A/11kW (400V), the coil is 24V DC and it has a built-in diode surge suppression circuit. Compared with the rheostat version, it has a faster release action and is suitable for DC control circuits that are more sensitive to the power failure response speed. Both the main and auxiliary terminals are spring-type quick-connect design, which facilitates panel assembly and subsequent maintenance.

Core Product Advantages and Features
Built-in diode fast suppression
The coil, combined with a built-in diode (rectifier type) to suppress surges, provides faster power-off release characteristics than the rheostat type, making it suitable for DC control circuits or battery-powered systems that require a faster power-off response.
24V DC coil design
The coil has a rated voltage of 24V DC and can be directly used with common 24V DC control power supplies and PLC output modules without the need for additional voltage regulators or protection components.
25A/11kW universal main circuit
The AC-3 has a rated current of 25A and a 400V rating, corresponding to an 11kW motor power. It shares the same main contact design as all coil versions of the 3RT2026 series and is suitable for general loads such as pumps, fans, and conveyor belts.
Spring terminal quick assembly
Both the main and auxiliary circuits use spring-loaded screwless terminals, which can shorten wiring time and reduce maintenance problems caused by loose screws after long-term use.
project Specification
Coil voltage/type 24 V DC (built-in diode suppression)
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 Spring-loaded (screwless quick-connect terminal)
Mechanical life 10,000,000 times
Protection level IP20 (Front end of terminal)
Pollution level Level 3
External dimensions (width × height × depth) 45×102×107 mm
weight Approximately 0.638 kg

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