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Siemens 3RH1911-1MA11 SIRIUS Auxiliary Switch Block - 1 NO, 1 NC

Siemens 3RH1911-1MA11 SIRIUS Auxiliary Switch Block with 1 NO, 1 NC contacts.

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ManufacturerSiemens

Part number3RH1911-1MA11

Configuration 1 NO + 1 NC

Terminals Screw

Size S00

Connection From below

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1 NO and 1 NC contacts Screw terminals Connection from below Size S00 compatibility SIRIUS series

Product description

The Siemens 3RH1911-1MA11 is an auxiliary switch block from the SIRIUS line, designed for Siemens auxiliary and motor contactors. It provides additional contacts for control circuits and is characterized by its connection from below.

This 2-pole block features 1 normally open (NO) and 1 normally closed (NC) contact, utilizing screw terminals. It is designed for size S00 contactors and conforms to EN 50005 standards. This product is phased out, with the SIRIUS 3RH2 series being its successor.

Ideal for applications requiring expanded control logic or status feedback from contactors, this block is a key component in automation systems. Stanlo Automation, a veteran-owned supplier of surplus industrial parts, ensures you have access to critical components like the 3RH1911-1MA11.

Technical specifications

Configuration	1 NO + 1 NC
Terminals	Screw
Size	S00
Connection	From below
Standard	EN 50005
Series	SIRIUS 3RH1911

Common applications

Control circuits

Motor control

Automation

Signaling

Interlocking

Compatible systems

Siemens 3RT1015, 3RT1016, 3RT1017, 3RT1316, 3RT1317, 3RT1515, 3RT1516, 3RT1517, 3RT1617 contactors and 3RH relays.

Also known as

Siemens 3RH1911-1MA11 Auxiliary Contact Block SIRIUS 3RH1911-1MA11

Replaces / compatible with

This phased-out product has been replaced by the Siemens SIRIUS 3RH2 series, with the preferred successor being the 3RH2911-1MA11.

Technical note

Expert tip

This auxiliary switch block is a phased-out product. Its successor, the 3RH2911-1MA11, is available within the SIRIUS 3RH2 series.

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Frequently asked questions

What is the purpose of the connection from below feature on the Siemens 3RH1911-1MA11?

The 'connection from below' feature on the Siemens 3RH1911-1MA11 auxiliary switch block allows for more flexible wiring within tight control panel layouts, particularly when mounting directly onto contactors.