3RA23168XB302BB4

The Siemens SIRIUS 3RA2316-8XB30-2BB4 is a pre-assembled reversible contactor assembly consisting of two 3RT2016 contactors and an interlocking kit. It has a rated current of 9A, an output of 4kW at 400V, a control voltage of 24VDC, and an IP20 protection rating, making it suitable for use in forward and reverse motor circuits.

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Siemens SIRIUS 3RA2316-8XB30-2BB4 Reversible Contactor Assembly Physical Drawing

Product Positioning

The 3RA2316-8XB30-2BB4 is a pre-assembled reversible contactor assembly from the Siemens SIRIUS series. It includes electrical and mechanical interlocking mechanisms and can be directly installed in the control box for motor forward and reverse switching, saving the time of on-site wiring and interlocking assembly.

Core Product Advantages and Features

Double chain design

The combination unit incorporates both electrical and mechanical interlocks to prevent short circuits caused by simultaneous engagement of the forward and reverse contactors.

Pre-assembly saves time

The two 3RT2016 contactors and interlocking kits are pre-assembled at the factory; only the power supply and motor wiring need to be connected on-site.

Compact rail mounting

Supports 35mm DIN rails with screw mounting, requiring minimal installation space and suitable for dense configuration within control boxes.

Spring-type terminals

The main circuit uses spring-loaded terminals, which allow for quick wiring and prevent loosening during long-term use.

project	Specification
Product Type	Reversible (forward and reverse) contactor combination
Rated current	9 A (AC-3e/AC-3)
Rated power	4 kW / 400V; 5.5 kW / 690V
Maximum operating voltage	690 V
Control voltage	24 V DC
Number of poles in main circuit	3 poles (3 sets of normally open contacts)
Components	2 x 3RT2016-2BB42 contactors + 3RA2913-2AA2 interlock kit
Maximum operating frequency	750 times/hour
Installation method	35mm guide rail screw clip installation
Protection level	IP20
Mechanical life	Approximately 10 million operation cycles
Terminal type	Spring-loaded terminals (main circuit/auxiliary/coil)
Operating temperature	-25°C ~ +60°C
External dimensions	84 (H) x 90 (W) x 83 (D) mm

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