Schneider SR2B121FUSR2 12 IO 100-240VAC w/Clock Compact Smart Relay

Schneider Electric
Order Code:

66-1842

Brand: Schneider Electric MPN: SR2B121FU
Qty Was Unit Price (Ex VAT)
1+ £222.42 £183.17
Price per unit {{ this._page.IncVat ? 'Inc' : 'Ex' }} VAT
Available to back orderBack-order availability date - 14/04/2026

A smart relay from Schneider Electric's SR2 series.


  • 12 I/O inputs
  • Operating voltage: 100 to 240V AC
  • With display
  • With clock
  • 4 outputs
  • Relay output
  • Schneider Electric type SR2B121FU
Type Smart relay
Display Type Yes
Supply Voltage 100 to 240V
Number of Digital Inputs 12
Appendant operation agent (Ex ia) false
Appendant operation agent (Ex ib) false
Basic device true
Certified for UL hazardous location class I false
Certified for UL hazardous location class II false
Certified for UL hazardous location class III false
Certified for UL hazardous location division 1 false
Certified for UL hazardous location division 2 false
Certified for UL hazardous location group A (acetylene) false
Certified for UL hazardous location group B (hydrogen) false
Certified for UL hazardous location group C (ethylene) false
Certified for UL hazardous location group D (propane) false
Certified for UL hazardous location group E (metal dusts) false
Certified for UL hazardous location group F (carbonaceous dusts) false
Certified for UL hazardous location group G (non-conductive dusts) false
Degree of protection (IP) IP20
Depth 59.5mm
Expandable false
Expansion device false
Explosion safety category for dust None
Explosion safety category for gas None
For Use With Zelio Logic
Front built-in possible true
Height 90mm
IO link master false
Mobile communication standard 2G (GSM) false
Mobile communication standard 3G (UMTS) false
Mobile communication standard GPRS false
Number of Analogue Inputs 0
Number of Analogue Outputs 4
Number of Digital Outputs 0
Number of HW-interfaces industrial Ethernet 0
Number of HW-interfaces other 1
Number of HW-interfaces parallel 0
Number of HW-interfaces RS-232 1
Number of HW-interfaces RS-422 0
Number of HW-interfaces RS-485 0
Number of HW-interfaces serial TTY 0
Number of HW-interfaces USB 0
Number of HW-interfaces wireless 0
Number of interfaces PROFINET 0
Performance level according to EN ISO 13849-1 None
Power Consumption 7W
Rack-assembly possible false
Radio standard Bluetooth false
Radio standard WLAN 802.11 false
Redundancy false
SIL according to IEC 61508 None
Suitable for rail mounting true
Suitable for safety functions false
Supply voltage AC 50 Hz 100 - 240V
Supply voltage AC 60 Hz 100 - 240V
Supply voltage DC N/A
Supporting protocol for ASI false
Supporting protocol for AS-Interface Safety at Work false
Supporting protocol for CAN false
Supporting protocol for Data-Highway false
Supporting protocol for DeviceNet false
Supporting protocol for DeviceNet Safety false
Supporting protocol for EtherCAT false
Supporting protocol for EtherNet/IP false
Supporting protocol for Foundation Fieldbus false
Supporting protocol for INTERBUS false
Supporting protocol for INTERBUS-Safety false
Supporting protocol for KNX false
Supporting protocol for LON false
Supporting protocol for Modbus false
Supporting protocol for other bus systems false
Supporting protocol for PROFIBUS false
Supporting protocol for PROFINET CBA false
Supporting protocol for PROFINET IO false
Supporting protocol for PROFIsafe false
Supporting protocol for SafetyBUS p false
Supporting protocol for SERCOS false
Supporting protocol for SUCONET false
Supporting protocol for TCP/IP false
Switching Current 8A
Voltage type (supply voltage) AC
Wall mounting/direct mounting true
Width 71.2mm
With display true
With optical interface false
With relay output true
With time switch clock true

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