Schneider Electric Zelio Compact PLC Modules

These Zelio Logic modules are a compact range of smart relays designed for simple control systems. The range is available in a choice of 10, 12 or 20 I/O with different supply voltages and there are also models available with or without internal clock or screen.

The modules are easy to install and program using either FBD or LADDER and the Zelio Soft 2 programming software is intuitive to use. The modules are operationally versatile with test, simulation and monitoring modes along with excellent supervisory functionality.

These smart relays are suitable for a wide range of simple control system applications carrying out tasks such as small machine control systems, decentralised control systems, lighting management, access control, control and monitoring, heating and air conditioning control, etc.

  • Extremely compact
  • May be DIN rail mounted
  • Displays are back-lit LCD 4 lines x 18 char x 1 row icons
  • Zelio Soft 2 intuitive programming software
  • Program memory test on each power up
  • Serial or USB connecting cables for smart relay/PC connection
  • Connection interface (smart relay/PC) for Bluetooth wireless connection
  • Protection against inversion of terminals (control instructions not executed)
  • Screw terminals
  • CSA, C-Tick, GL, GOST, UL certifications
Description Image Product Buy Pricing (Ex VAT) Supply Voltage Power Consumption Supply voltage DC Type Display Type Number of Digital Inputs Appendant operation agent (Ex ia) Appendant operation agent (Ex ib) Basic device Certified for UL hazardous location class I Certified for UL hazardous location class II Certified for UL hazardous location class III Certified for UL hazardous location division 1 Certified for UL hazardous location division 2 Certified for UL hazardous location group A (acetylene) Certified for UL hazardous location group B (hydrogen) Certified for UL hazardous location group C (ethylene) Certified for UL hazardous location group D (propane) Certified for UL hazardous location group E (metal dusts) Certified for UL hazardous location group F (carbonaceous dusts)
Schneider Electric SR2 B121JD Zelio Compact PLC Module
Schneider Electric SR2 B121JD Zelio Compact PLC Module
Extended range
Order code: 57-8119
MPN: SR2B121JD

Available to back orderBack order, lead time 11 days
1+ £165.53
Price per unit Ex VAT
12V DCV 1.5W 12 - 12V Controller (PLC) 4 x 18 character LCD 8 false false true false false false false false false false false false false false
Schneider Electric SR2B121BD Zelio Compact PLC Module
Schneider Electric SR2B121BD Zelio Compact PLC Module
Extended range
Order code: 57-8123
MPN: SR2B121BD

18 available to back orderBack-order availability date - 30/04/2026
1+ £161.62
Price per unit Ex VAT
24V DCV 3W 24 - 24V Controller (PLC) 4 x 18 character LCD 8 false false true false false false false false false false false false false false
Order codePart numberNo. of I/ORated voltageClockDisplay
57-8120SR2A101BD6/424V DCNY
57-8119SR2B121JD8/412V DCYY
57-8123SR2B121BD8/424V DCYY
57-8118SR2B121FU8/4100 to 240V ACYY
57-8121SR2B201BD12/824V DCYY
57-8122SR2A201FU12/8100 to 240V ACNY
57-8124SR2D201FU12/8100 to 240V ACNN

Control scheme lines120 Ladder programming
200 FBD programming
Cycle time6 to 90ms
Backup time10 years
Isolation voltage1780V
Contact configurationNO
Mechanical durability10,000,000 cycles
Operating temperature-20°C to +55°C


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