Description 

​The Siemens 3RH1122-1BB40 is a SIRIUS series contactor relay, featuring 2 normally open (NO) and 2 normally closed (NC) contacts, designed for 24 V DC control voltage applications. It is rated for a maximum operating current of 10 A and is housed in a compact S00 frame size.

 

 

Technical Specifications 

Condition	New/Never Used Surplus
Brand	Siemens
Category	Relays
Part Number	3RH1122-1BB40
Subcategory	Relays & Sockets
Type of Contactor	4-pole
Contacts Configuration	NC x2 + NO x2
Control Voltage	24V DC
Max. Operating Current	6A
Mounting	For DIN Rail Mounting, On Panel
Leads	Screw Terminals
Size	S00
Weight	0.263 kgs

  

 

Information About 3RH1122-1BB40

The Siemens 3RH1122-1BB40 is a SIRIUS contactor relay used for controlling auxiliary circuits in industrial automation systems. It is commonly used for switching and controlling small loads like signal lamps, interlocks, and relays.

Key Features:

• Type: Contactor relay

• Series: Siemens SIRIUS

• Control Voltage: 24 V DC

• Contacts: 4 total (2 Normally Open + 2 Normally Closed)

• Rated Operating Current: Up to 10 A

• Mounting Type: DIN rail

• Size: S00 frame

• Standards: IEC/EN 60947

• Compact design for space-saving control panels

• Snap-on auxiliary contacts for expansion

• Long electrical/mechanical lifespan

• Suitable for industrial automation, control cabinets, and panel building