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Siemens 3RH1911-1MA20 SIRIUS Auxiliary Switch Block - 2 NO

Siemens 3RH1911-1MA20 SIRIUS Auxiliary Switch Block with 2 NO contacts.

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ManufacturerSiemens

Part number3RH1911-1MA20

Configuration 2 NO

Terminals Screw

Size S00

Connection From below

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2 NO contacts Screw terminals Connection from below Size S00 compatibility SIRIUS series

Product description

The Siemens 3RH1911-1MA20 is an auxiliary switch block for Siemens SIRIUS auxiliary and motor contactors, designed to add extra control contacts. It features a connection from below for easier integration.

This block provides 2 normally open (NO) instantaneous contacts, utilizing screw terminals. It is compatible with size S00 contactors and meets EN 50005 standards. As this is a phased-out product, the SIRIUS 3RH2 series, specifically the 3RH2911-1MA20, is its successor.

This component is crucial for expanding control logic in automation systems, motor control, and machine building. Stanlo Automation, a veteran-owned surplus parts distributor, ensures availability of essential components like the 3RH1911-1MA20 for your industrial needs.

Technical specifications

Configuration	2 NO
Terminals	Screw
Size	S00
Connection	From below
Standard	EN 50005
Series	SIRIUS 3RH1911

Common applications

Control circuits

Motor control

Automation systems

Machine building

Expanded logic

Compatible systems

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

Also known as

Siemens 3RH1911-1MA20 Auxiliary Contact Block SIRIUS 3RH1911-1MA20

Replaces / compatible with

This phased-out product has been replaced by the Siemens SIRIUS 3RH2 series, with the preferred successor being the 3RH2911-1MA20.

Technical note

Expert tip

This is a phased-out product, succeeded by the 3RH2911-1MA20 within the SIRIUS 3RH2 family.

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Frequently asked questions

Does the Siemens 3RH1911-1MA20 auxiliary switch block have normally closed contacts?

No, the Siemens 3RH1911-1MA20 auxiliary switch block is configured with two normally open (NO) contacts only. It does not feature normally closed (NC) contacts.