3RT2025-2FB40

Siemens 3RT2025-2FB40 Contactor, Spring Terminal Type, AC-3, 7.5kW/400V
Siemens 3RT2025-2FB40 Contactor, Spring Terminal Type, AC-3, 7.5kW/400V

S00 low-power contactor, spring-loaded (screwless) terminal, AC-3 7.5kW/400V/17A, FB code single-segment standard model, no additional Z add-on code, simple part number for ordering.

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Siemens 3RT2025-2FB40 Contactor, Spring Terminal Type, AC-3, 7.5kW/400V
Product Positioning

Both 3RT2025-2FB40 and 3RT2025-2FB44-3MA0 belong to the "FB" code family, but this model has a single-segment order code structure, ending with "B40," unlike the latter which also has an additional "-3MA0" add-on code. This makes it a simpler standard version, facilitating price comparison and stock availability. The first digit "2" of the part number corresponds to spring-loaded (screwless) terminals, with wiring completed using a clamping rod, eliminating the need for individual screw tightening. The main circuit maintains the same AC-3 7.5kW/400V, 17A specification as the SIRIUS 3RT20 series S00 family, suitable for start-stop control of small to medium power three-phase motors. Please refer to the packaging markings or contact Kenxin Motors for confirmation regarding coil voltage and auxiliary contact configuration.

Core Product Advantages and Features
Spring-loaded (screwless) terminals
The "2" in part number "-2FB40" corresponds to a spring-loaded terminal design. The clamping rod replaces the screw for securing the wire, resulting in higher wiring efficiency and greater vibration resistance.
FB code single segment standard model
It belongs to the FB code family with 3RT2025-2FB44-3MA0, but this model does not have an additional Z add-on code. The last code "B40" is a standard version.
S00 Low-Power Dedicated Design
The AC-3 7.5kW/400V/17A specification is more compact than the 11kW/25A of the 3RT2026 series, making it suitable for small and medium power three-phase motor applications.
Siemens genuine products
Kenxin Motors is an authorized distributor of Siemens, providing genuine product warranty and post-delivery selection consultation services.
project Specification
model 3RT2025-2FB40
Rated operating current Ie (AC-3) 17 A
Rated power (AC-3, 400V) 7.5 kW
Number of poles/main contacts 3 poles, 3NO
Terminal type Spring-loaded terminals (screwless, cage clamp)
Order code structure Single-segment encoding, no additional Z-code.
Frame size S00 (S0) is one size smaller than 3RT2026.
External dimensions (width x height x depth) Approximately 45 x 85 x 97 mm
Protection level IP20 (Front Side/Terminals)
Operating ambient temperature -25°C ~ +60°C
Applicable Standards IEC/EN 60947-4-1
Product Series SIRIUS 3RT20 series

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