3RT2025-2KB40

Siemens 3RT2025-2KB40 Contactor, Spring Terminal Type, AC-3, 7.5kW/400V
Siemens 3RT2025-2KB40 Contactor, Spring Terminal Type, AC-3, 7.5kW/400V

S00 low-power contactor, spring-loaded (screwless) terminal, AC-3 7.5kW/400V/17A, K-code family last code B40 model, belonging to the same single-segment coding standard product as 2KF40 and 2KC80.

Contact Us
Share To
Siemens 3RT2025-2KB40 Contactor, Spring Terminal Type, AC-3, 7.5kW/400V
Product Positioning

The 3RT2025-2KB40 belongs to the "K" code family of S00 low-power contactors. Like the 3RT2025-2KF40 and 3RT2025-2KC80, it uses a single-segment order code structure and does not include an additional "Z" add-on code. The last code "B40" of this model number is the differentiating code among the three. The first code "2" in the part number corresponds to a spring-loaded (screwless) terminal. Wiring is completed by clamping with a pressure rod, eliminating the need for traditional screw tightening and reducing the likelihood of loosening due to long-term vibration. 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 "-2KB40" corresponds to a spring-loaded terminal design, where the clamping rod replaces the screw for fastening, making it suitable for applications requiring rapid and high-volume wiring.
K-code family, last code B40
It belongs to the K-code family of single-segment encoding, along with 3RT2025-2KF40 and 3RT2025-2KC80. The last code "B40" is a unique distinguishing code for this model.
Single-segment standard order code
Without additional Z-buy codes, the part number structure is simple, which is beneficial for business quotation comparison and spot material management.
Siemens genuine products
Kenxin Motors is an authorized distributor of Siemens, providing genuine product warranty and post-delivery selection consultation services.
project Specification
model 3RT2025-2KB40
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

Recommend

Siemens 3RT2025-2KC80 Contactor, Spring Terminal Type, AC-3, 7.5kW/400V
Read More

3RT2025-2KC80

S00 low-power contactor, spring-loaded (screwless) terminal, AC-3 7.5kW/400V/17A, K-code family last code C80, single order code, no additional Z add-on code.
Siemens 3RT2025-2FB40 Contactor, Spring Terminal Type, AC-3, 7.5kW/400V
Read More

3RT2025-2FB40

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.
Siemens 3RT2025-2BB44 DC Coil Spring Terminal 2NO+2NC 17A 7.5kW Contactor
Read More

3RT2025-2BB44

S00 chassis 3-pole AC contactor, AC-3 17A/7.5kW, 24V DC coil with spring terminals and 2NO+2NC auxiliary contacts, suitable for panel wiring requiring multiple interlocking signals.