Siemens
3RH1921-2FA04
Auxiliary contact block
Terminal blocks & relays
- Normally closed contacts
- 4
- Compatible frame size
- S0–S12
LANGOM PRODUCT CATALOGUE
Industrial, electrical and HVAC products
Find automation controls, electrical installation products, relays and refrigeration service equipment. Browse categories or manufacturers, compare the listed specifications and confirm the exact ordering reference.
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- Circuit protection 18,658
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- XINGLIGHT 10
Items 4,969–5,004 of 273,183 matching catalogue itemsClear filtersHave another part number? Send an enquiry
Siemens
3RH1911-2NF20
Auxiliary contact block
Terminal blocks & relays
- Normally open contacts
- 2
- Connection
- Spring terminals
Siemens
3RH1911-2NF02
Auxiliary contact block
Terminal blocks & relays
- Normally closed contacts
- 2
- Connection
- Spring terminals
Siemens
3RH1921-2CA10
Auxiliary contact block
Terminal blocks & relays
- Normally open contacts
- 1
- Connection
- Spring terminals
Siemens
3RV1901-1J
Auxiliary contact block
Terminal blocks & relays
- Normally open contacts
- 2
- Normally closed contacts
- 2
Siemens
3RH2380-1BB40-0BA0
Contactor relay
Terminal blocks & relays
- Normally open contacts
- 4
- Normally closed contacts
- 4
Siemens
3RH2244-1AK60
Contactor relay
Terminal blocks & relays
- Normally open contacts
- 4
- Normally closed contacts
- 4
Siemens
3RH2244-1BF40
Contactor relay
Terminal blocks & relays
- Normally open contacts
- 4
- Normally closed contacts
- 4
Siemens
3RH2344-1AP00-0KA0
Contactor relay
Terminal blocks & relays
- Normally open contacts
- 4
- Normally closed contacts
- 4
Siemens
3NY3034
Auxiliary contact block
Terminal blocks & relays
- Normally open contacts
- 1
- Normally closed contacts
- 1
Siemens
3RH1911-1LA11
Auxiliary contact block
Terminal blocks & relays
- Normally open contacts
- 1
- Normally closed contacts
- 1
Siemens
3RT1926-2FK21
Time-delay auxiliary switch block
Terminal blocks & relays
- Normally open contacts
- 1
- Normally closed contacts
- 1
Siemens
3RH1911-1GA13
Auxiliary contact block
Terminal blocks & relays
- Normally open contacts
- 1
- Normally closed contacts
- 3
Siemens
3RH1911-1AA01
Auxiliary contact block
Terminal blocks & relays
- Normally closed contacts
- 1
- Connection
- Screw terminals
Siemens
3RH1911-1HA22
Auxiliary contact block
Terminal blocks & relays
- Normally open contacts
- 2
- Normally closed contacts
- 2
Siemens
3RH1911-1FA11
Auxiliary contact block
Terminal blocks & relays
- Normally open contacts
- 1
- Normally closed contacts
- 1
Siemens
3RH1911-1FA22
Auxiliary contact block
Terminal blocks & relays
- Normally open contacts
- 2
- Normally closed contacts
- 2
Siemens
3RH1921-1FA22
Auxiliary contact block
Terminal blocks & relays
- Normally open contacts
- 2
- Normally closed contacts
- 2
Siemens
3RH1921-1HA22
Auxiliary contact block
Terminal blocks & relays
- Normally open contacts
- 2
- Normally closed contacts
- 2
Siemens
6ES7134-6PA20-0CU0
Energy measurement module
PLCs & I/O
- Compatible system
- SIMATIC ET200SP
- Sensor interface
- Rogowski coils / 333 mV transformers
Siemens
6ES7137-6AA00-0BA0
Serial communication module
Industrial communication
- Compatible system
- SIMATIC ET200SP
- Serial interfaces
- RS232 / RS422 / RS485
Siemens
6ES7137-6AA01-0BA0
Serial communication module
Industrial communication
- Compatible system
- SIMATIC ET200SP
- Serial interfaces
- RS232 / RS422 / RS485
Siemens
6ES7137-6BD00-0BA0
IO-Link master module
Industrial communication
- Compatible system
- SIMATIC ET200SP
- IO-Link channels
- 4
Siemens
6ES7137-6EA00-0BA0
CAN communication gateway
Industrial communication
- Compatible system
- SIMATIC ET200SP
- CAN specification
- CAN2.0A/B
Siemens
6ES7138-4CF03-0AB0
Failsafe power module
PLCs & I/O
- Compatible system
- SIMATIC ET200S
- Supply voltage
- 24 V DC
Siemens
6ES7138-4CF41-0AB0
Failsafe power module
PLCs & I/O
- Compatible system
- SIMATIC ET200S
- Supply voltage
- 24 V DC
Siemens
6ES7138-4CF42-0AB0
Failsafe power module
PLCs & I/O
- Compatible system
- SIMATIC ET200S
- Supply voltage
- 24 V DC
Siemens
6ES7138-4DC00-0AB0
Stepper positioning module
PLCs & I/O
- Compatible system
- SIMATIC ET200S
- Channels
- 1
Siemens
6ES7138-4DF01-0AB0
Serial interface module
Industrial communication
- Compatible system
- SIMATIC ET200S
- Channels
- 1
Siemens
6ES7138-4DF11-0AB0
Serial interface module
Industrial communication
- Compatible system
- SIMATIC ET200S
- Channels
- 1
Siemens
6ES7147-4JD00-0AB0
IO-Link master module
Industrial communication
- Compatible system
- SIMATIC ET200pro
- IO-Link channels
- 4
Siemens
6ES7154-2AA01-0AB0
PROFIBUS interface module
Industrial communication
- Compatible system
- SIMATIC ET200pro
- Network
- PROFIBUS DP
Siemens
6ES7157-0AC81-0XA0
PROFIBUS DP/PA coupler
Industrial communication
- Networks
- PROFIBUS DP / PA
- Fieldbus standard
- IEC61158-2
Siemens
6ES7157-0AC82-0XA0
PROFIBUS DP/PA coupler
Industrial communication
- Networks
- PROFIBUS DP / PA
- Enclosure protection
- IP20
Siemens
6ES7193-7CA20-0AA0
Terminal module
PLCs & I/O
- Compatible system
- SIMATIC ET200iSP
- Electronic module positions
- 2
Siemens
6ES7193-7CB00-0AA0
Terminal module
PLCs & I/O
- Compatible system
- SIMATIC ET200iSP
- Electronic module positions
- 2
The catalogue includes exact products, shared model selections and configurable connector families. Each selection identifies its scope. Pricing, availability and the final specification are confirmed in your quotation.