3RV2917-4B

The Siemens 3RV2917-4B is an extension of the SIRIUS 3RV2 incoming busbar system, a three-phase busbar with an extension connector that supports the connection of up to three S00/S0 frame circuit breakers in series. It has a rated current of 63A and a rated voltage of 500V AC. The plug-in design eliminates the need for additional terminal wiring and is suitable for multi-circuit motor starter panel configurations.

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Siemens 3RV2917-4B SIRIUS Three-Phase Busbar Extension Connector 63A

Product Positioning

The 3RV2917-4B is a three-phase busbar for the Siemens SIRIUS 3RV2 incoming line system, including an extension connector, which can be connected in series to expand the busbar to a total of 3 sets of S00/S0 frame circuit breakers.

Core Product Advantages and Features

Extended connection to 3 sets of circuit breakers

The design includes an extension connector, which can expand the bus system to a total of 3 sets of S00/S0 frame circuit breakers.

Rated current 63A

With a rated operating current of 63A and a rated voltage of 500V AC, it meets the circuit input requirements of most small motors.

Plug-in terminalless wiring

It adopts a plug-in connection, eliminating the need for additional terminal locking and speeding up panel assembly and maintenance.

Compact DIN rail mounting

It is fixed to a 35mm standard guide rail by a snap-fit method, saving internal installation space in the control panel.

project	Specification
Product Model	3RV2917-4B
Product Type	Three-phase busbar (including extension connectors)
Applicable frame size	S00, S0
Number of circuit breakers that can be connected in series	3 groups
Rated operating current	63 A
Rated voltage	500 V AC (UL standard 600 V AC)
Rated impulse withstand voltage	6 kV
Extreme number	3-pole (main circuit)
Connection method	Insert-type, terminal-free
External dimensions (width × height × depth)	136 × 129 × 59 mm
weight	Approximately 440 g
Installation method	Clip-on type, 35mm standard guide rail
Protection level	IP20 (according to IEC 60529)
Ambient temperature	-20°C to +60°C

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