3RT2026-1BB44

Based on the standard 24V DC coil, the 3RT2026-1BB44 upgrades the auxiliary contacts to 4 points (2NO+2NC). The AC-3 rated 25A/11kW/400V remains unchanged, making it suitable for control panel designs that require multiple sets of contacts, such as indicator light feedback and interlocking circuits.

Share To

Siemens 3RT2026-1BB44 24V DC Coil Contactor 2NO2NC 25A

Product Positioning

Based on the 24V DC coil in the same series, the 3RT2026-1BB44 upgrades the auxiliary contact configuration to 4 groups (2NO+2NC), doubling the number of usable contacts compared to the more common 1NO+1NC. When the control panel needs to provide multiple independent signals such as operation indication, fault alarm, and interlock circuit simultaneously, choosing this model can save the extra space and wiring required for external auxiliary contact sockets. It is a value-added model that Kensun Motors often recommends to machine integrators.

Core Product Advantages and Features

2NO+2NC four sets of auxiliary contacts

It has twice the number of contacts compared to the standard 1NO+1NC configuration, meeting multiple feedback/interlocking requirements.

24V DC standard coil

It is compatible with the output voltage of most PLCs and relays, and the wiring is simple and intuitive.

The AC-3 25A/11kW main circuit remains unchanged.

It shares the same main circuit specifications as other models in the same series, making selection and spare parts management simpler.

Detachable auxiliary contact module

The contact base can be removed and replaced individually for maintenance, reducing overall downtime and replacement costs.

project	Specification
model	3RT2026-1BB44
AC-3 rated current	25 A
AC-3 Rated Power (400V)	11 kW
Extreme number	3P
Coil Specifications	24 V DC
auxiliary contacts	2 NO + 2 NC
Main circuit terminals	Screw terminals
net weight	Approximately 0.640 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

Recommend

3RT2026-1BF40

The 3RT2026-1BF40 uses a 110V DC coil, with a main circuit rated AC-3 of 25A/11kW/400V, 1NO+1NC auxiliary contacts, and screw terminals. It is an electrical and dimensional compatible replacement for the discontinued 3RT1026-1BF40 and is suitable for the repair and replacement of DC control panels.

3RT2026-1AP60

The 3RT2026-1AP60 features a dual-frequency coil design (220V AC 50Hz/240V AC 60Hz), allowing a single part number to accommodate both 50Hz and 60Hz power systems. The AC-3 rated capacity is 25A/11kW, with 1NO+1NC auxiliary contacts, making it suitable for export machines and cross-regional equipment.

3RT2026-1AP04

The 3RT2026-1AP04 is a 230V AC 50Hz coil contactor with 4 auxiliary contacts (2NO+2NC). It has an AC-3 rated capacity of 25A/11kW/400V and a holding apparent power of 77VA. It is suitable for automated panels that require multiple sets of AC control signal feedback at the same time.