Zelio Logic Compact smart relay 12 I/O, 24V AC, clock, display

Home ProductsIndustrialZelio LogicCompact smart relay

Zelio Logic Compact smart relay 12 I/O, 24V AC, clock, display

Item Number: SR2B121B

Where To Buy

Datasheet

PDF datasheet

Download

Barcode

Qty UoM EAN Colour
-
-
-

Specifications

Design

Range of product

Zelio Logic

Product or component type

compact smart relay

Warranty

18 months

Physical

Backup time

10 years at 25 °C

Protection type

against inversion of terminals (control instructions not executed)

Electrical durability

  • AC-12: 500000 cycles at 230 V, 1.5 A for relay output conforming to IEC 60947-5-1
  • AC-15: 500000 cycles at 230 V, 0.9 A for relay output conforming to IEC 60947-5-1
  • DC-12: 500000 cycles at 24 V, 1.5 A for relay output conforming to IEC 60947-5-1
  • DC-13: 500000 cycles at 24 V, 0.6 A for relay output conforming to IEC 60947-5-1

Mechanical durability

10000000 cycles for relay output

Connections - terminals

  • screw terminals, 1 x 0.2...1 x 2.5 mm² (AWG 25...AWG 14) semi-solid
  • screw terminals, 1 x 0.2...1 x 2.5 mm² (AWG 25...AWG 14) solid
  • screw terminals, 1 x 0.25...1 x 2.5 mm² (AWG 24...AWG 14) flexible with cable end
  • screw terminals, 2 x 0.2...2 x 1.5 mm² (AWG 24...AWG 16) solid
  • screw terminals, 2 x 0.25...2 x 0.75 mm² (AWG 24...AWG 18) flexible with cable end

Net weight

0.25 kg

Product certifications

  • C-Tick
  • CSA
  • GL
  • UL
  • GOST

Standards

  • IEC 61000-4-3
  • IEC 61000-4-4 level 3
  • IEC 61000-4-11
  • IEC 60068-2-27 Ea
  • IEC 61000-4-5
  • IEC 61000-4-6 level 3
  • IEC 61000-4-2 level 3
  • IEC 60068-2-6 Fc
  • IEC 61000-4-12

Ip degree of protection

  • IP20 (terminal block) conforming to IEC 60529
  • IP40 (front panel) conforming to IEC 60529

Environmental characteristic

  • EMC directive conforming to IEC 61000-6-2
  • EMC directive conforming to IEC 61000-6-3
  • EMC directive conforming to IEC 61000-6-4
  • EMC directive conforming to IEC 61131-2 zone B
  • low voltage directive conforming to IEC 61131-2

Ambient air temperature for operation

  • -20...40 °C in non-ventilated enclosure conforming to IEC 60068...2-1 and IEC 60068...2-2
  • -20...55 °C conforming to IEC 60068...2-1 and IEC 60068...2-2

Ambient air temperature for storage

-40...70 °C

Relative humidity

95 % without condensation or dripping water

Mercury free

Yes

Rohs exemption information

Yes

Environmental disclosure

ENVPEP060406EN

Eu rohs directive

Pro-active compliance (Product out of EU RoHS legal scope)

Reach regulation

Reference contains Substances of Very High Concern above the threshold

China rohs regulation

X

California proposition 65

WARNING: This product can expose you to chemicals including: Lead and lead compounds, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov

Others

Legacy weee scope

In

Average percentage of recycled plastic content

0 %

Package 2 bare product quantity

30

Weee label

The product must be disposed on European Union markets following specific waste collection and never end up in rubbish bins

Package 1 bare product quantity

1

At least in Europe

Local display

with

Number or control scheme lines

  • 0...240 with ladder programming
  • 0...500 with FBD programming

Cycle time

6...90 ms

Clock drift

  • 12 min/year at 0-55 °C
  • 6 s/month at 25-25 °C

Checks

program memory on each power up

[us] rated supply voltage

24 V AC

Supply voltage limits

20.4...28.8 V

Supply frequency

50/60 Hz

Maximum supply current

145 mA (without extension)

Power consumption in va

4 VA without extension

Isolation voltage

1780 V

Discrete input number

8

Discrete input voltage

24 V AC

Discrete input current

4.4 mA

Discrete input frequency

  • 57...63 Hz
  • 47...53 Hz

Voltage state 1 guaranteed

>= 14 V for discrete input

Voltage state 0 guaranteed

<= 5 V for discrete input

Current state 1 guaranteed

>= 2 mA (discrete input)

Current state 0 guaranteed

<= 0.5 mA (discrete input)

Analogue input number

0

Input impedance

4.6 kOhm for discrete input

Number of outputs

4 relay

Output voltage limits

  • 5...30 V DC (relay output)
  • 24...250 V AC

Contacts type and composition

NO for relay output

Output thermal current

8 A for all 4 outputs for relay output

Switching capacity in ma

>= 10 mA at 12 V (relay output)

Operating rate in hz

  • 0.1 Hz (at Ie) for relay output
  • 10 Hz (no load) for relay output

[uimp] rated impulse withstand voltage

4 kV conforming to EN/IEC 60947-1 and EN/IEC 60664-1

Clock

with

Response time

  • 50 ms with ladder programming (from state 0 to state 1) for discrete input
  • 50 ms with ladder programming (from state 1 to state 0) for discrete input
  • 50...255 ms with FBD programming (from state 0 to state 1) for discrete input
  • 50...255 ms with FBD programming (from state 1 to state 0) for discrete input
  • 10 ms (from state 0 to state 1) for relay output
  • 5 ms (from state 1 to state 0) for relay output

Tightening torque

0.5 N.m

Overvoltage category

III conforming to IEC 60664-1

Immunity to microbreaks

10 ms repeated 20 times

Disturbance radiated/conducted

class B conforming to EN 55022-11 group 1

Pollution degree

2 conforming to IEC 61131-2

Operating altitude

2000 m

Maximum altitude transport

3048 m

Unit type of package 1

PCE

Number of units in package 1

1

Package 1 height

6.600 cm

Package 1 width

9.100 cm

Package 1 length

10.000 cm

Package 1 weight

243.000 g

Unit type of package 2

S03

Number of units in package 2

30

Package 2 height

30.000 cm

Package 2 width

30.000 cm

Package 2 length

40.000 cm

Package 2 weight

7.763 kg

Green premium status for reporting

Green Premium product

Total lifecycle carbon footprint

122 kg CO2 eq.

Carbon footprint of the manufacturing phase [a1 to a3]

29.76911345876071

Carbon footprint of the manufacturing phase [a1 to a3]

30 kg CO2 eq.

Carbon footprint of the distribution phase [a4]

0.4824334121180578

Carbon footprint of the distribution phase [a4]

0.5 kg CO2 eq.

Carbon footprint of the installation phase [a5]

0.045666275445656254

Carbon footprint of the installation phase [a5]

0 kg CO2 eq.

Carbon footprint of the use phase [b2, b3, b4, b6]

91.11300046745393

Carbon footprint of the use phase [b2, b3, b4, b6]

91 kg CO2 eq.

Sustainable packaging

Yes

Carbon footprint of the end-of-life phase [c1 to c4]

0.6085547456974569

Carbon footprint of the end-of-life phase [c1 to c4]

0.6 kg CO2 eq.

Pvc free

Yes

Take-back

No

Product contributes to saved and avoided emissions

No

Total lifecycle carbon footprint

122.01876835947581

Average percentage of recycled metal content

0 %

Packaging made with recycled cardboard

Yes

Packaging without single use plastic

Yes

Scip number

eee2fc35-1620-4b70-b1d5-206e9240044e

Pvc free

Yes

End of life manual availability

ENVEOLI0604006EN

Take-back

No

Weee label

The product must be disposed on European Union markets following specific waste collection and never end up in rubbish bins

Warranty (in months)

18
Show all specifications

Documents & downloads

hide show
Filter items

  • All

  • CAD Files and Packs

  • Technical Data Catalogues

  • End of Life Manual

  • Environmental Disclosure

  • Handout

  • Installation Instruction

  • Operating Manuals

  • Certificates (MSDS)

  • Declaration of Conformity

  • eTechPub

  • Declaration of Conformity (Sustainability)

  • Software - Release

Important: Some software files may need a mySchneider or Club login to download.
Compact smart relays with display 12 V DC or 24 V DC or 24 V AC or 100 to 240 V AC
ZIP

Compact smart relays with display 12 V DC or 24 V DC or 24 V AC or 100 to 240 V AC

VERSION

1.1

DATE

04 Aug 2023

REVISION

1.1

DOWNLOAD (ZIP) 417.6 KB
Compact smart relays with display 12 V DC or 24 V DC or 24 V AC or 100 to 240 V AC
ZIP

Compact smart relays with display 12 V DC or 24 V DC or 24 V AC or 100 to 240 V AC

VERSION

1.1

DATE

04 Aug 2023

REVISION

1.1

DOWNLOAD (ZIP) 539.7 KB
Compact smart relays with display 12 V DC or 24 V DC or 24 V AC or 100 to 240 V AC
ZIP

Compact smart relays with display 12 V DC or 24 V DC or 24 V AC or 100 to 240 V AC

VERSION

1.1

DATE

21 Jul 2023

REVISION

1.1

DOWNLOAD (ZIP) 469.3 KB
Compact smart relay Zelio Logic - 10 /12 IO - 3D CAD
ZIP

Compact smart relay Zelio Logic - 10 /12 IO - 3D CAD

VERSION

1.0

DATE

02 Aug 2022

REVISION

1.0

DOWNLOAD (ZIP) 2.4 MB
Catalog Zelio Logic Smart relays for simple automation systems from 10 to 40 IOs_English_January 2022
ZIP

Catalog Zelio Logic Smart relays for simple automation systems from 10 to 40 IOs_English_January 2022

VERSION

4.0

DATE

23 Sep 2025

REVISION

4.0

DOWNLOAD (ZIP) 9 MB
Zelio Logic Smart Relays
ZIP

Zelio Logic Smart Relays

VERSION

3.0

DATE

20 Nov 2024

REVISION

3.0

DOWNLOAD (ZIP) 264.6 KB
Zelio Logic Smart Relays
ZIP

Zelio Logic Smart Relays

VERSION

4.0

DATE

20 Nov 2024

REVISION

4.0

DOWNLOAD (ZIP) 348.5 KB
Automated solution for effective people flow management!
ZIP

Automated solution for effective people flow management!

VERSION

1.0

DATE

07 Feb 2024

REVISION

1.0

DOWNLOAD (ZIP) 1.4 MB
SR2A... / SR2B... Logic compact module Zelio with screen
ZIP

SR2A... / SR2B... Logic compact module Zelio with screen

VERSION

7.0

DATE

29 Sep 2023

REVISION

7.0

DOWNLOAD (ZIP) 587 KB
Zelio Logic Programming Guide
ZIP

Zelio Logic Programming Guide

VERSION

3.0

DATE

25 Sep 2025

REVISION

3.0

DOWNLOAD (ZIP) 7.5 MB
Zelio Logic - Smart Relay, User Manual
ZIP

Zelio Logic - Smart Relay, User Manual

VERSION

3.0

DATE

23 Sep 2025

REVISION

3.0

DOWNLOAD (ZIP) 3 MB
Zelio Soft 2 Applications Examples Guide
ZIP

Zelio Soft 2 Applications Examples Guide

VERSION

2.0

DATE

23 Sep 2025

REVISION

2.0

DOWNLOAD (ZIP) 6.5 MB
Zelio Logic 2 Quick Start
ZIP

Zelio Logic 2 Quick Start

VERSION

2.0

DATE

29 Sep 2023

REVISION

2.0

DOWNLOAD (ZIP) 1.8 MB
Zelio SR2 SR3 CoC UL
ZIP

Zelio SR2 SR3 CoC UL

VERSION

1.0

DATE

22 Apr 2025

REVISION

1.0

DOWNLOAD (ZIP) 239.3 KB
DNV-GL Certificate Zelio
ZIP

DNV-GL Certificate Zelio

VERSION

3.0

DATE

02 Jan 2024

REVISION

3.0

DOWNLOAD (ZIP) 186.6 KB
Zelio SR2 SR3 DoC
ZIP

Zelio SR2 SR3 DoC

VERSION

1.2

DATE

24 Jan 2025

REVISION

1.2

DOWNLOAD (ZIP) 757.6 KB
RCM_SR2_SR3_Zelio_Relay
ZIP

RCM_SR2_SR3_Zelio_Relay

VERSION

1.0

DATE

06 Oct 2022

REVISION

1.0

DOWNLOAD (ZIP) 149.1 KB
English
ZIP

English

VERSION

1.1

DATE

23 Oct 2024

REVISION

1.1

DOWNLOAD (ZIP) 857.1 KB
SR2B121B China RoHS Declaration
ZIP

SR2B121B China RoHS Declaration

VERSION

1.0

DATE

01 Jan 1900

REVISION

1.0
SR2B121B China RoHS Declaration
ZIP

SR2B121B China RoHS Declaration

VERSION

1.0

DATE

01 Jan 1900

REVISION

1.0
SR2B121B China RoHS Declaration
ZIP

SR2B121B China RoHS Declaration

VERSION

1.0

DATE

01 Jan 1900

REVISION

1.0
SR2B121B China RoHS Declaration
ZIP

SR2B121B China RoHS Declaration

VERSION

1.0

DATE

01 Jan 1900

REVISION

1.0
SR2B121B China RoHS Declaration
ZIP

SR2B121B China RoHS Declaration

VERSION

1.0

DATE

01 Jan 1900

REVISION

1.0
SR2B121B China RoHS Declaration
ZIP

SR2B121B China RoHS Declaration

VERSION

1.0

DATE

01 Jan 1900

REVISION

1.0
SR2B121B China RoHS Declaration
ZIP

SR2B121B China RoHS Declaration

VERSION

1.0

DATE

01 Jan 1900

REVISION

1.0
SR2B121B China RoHS Declaration
ZIP

SR2B121B China RoHS Declaration

VERSION

1.0

DATE

01 Jan 1900

REVISION

1.0
SR2B121B EU RoHS Declaration
ZIP

SR2B121B EU RoHS Declaration

VERSION

1.0

DATE

01 Jan 1900

REVISION

1.0
SR2B121B EU RoHS Declaration
ZIP

SR2B121B EU RoHS Declaration

VERSION

1.0

DATE

01 Jan 1900

REVISION

1.0
SR2B121B EU RoHS Declaration
ZIP

SR2B121B EU RoHS Declaration

VERSION

1.0

DATE

01 Jan 1900

REVISION

1.0
SR2B121B EU RoHS Declaration
ZIP

SR2B121B EU RoHS Declaration

VERSION

1.0

DATE

01 Jan 1900

REVISION

1.0
SR2B121B EU RoHS Declaration
ZIP

SR2B121B EU RoHS Declaration

VERSION

1.0

DATE

01 Jan 1900

REVISION

1.0
SR2B121B EU RoHS Declaration
ZIP

SR2B121B EU RoHS Declaration

VERSION

1.0

DATE

01 Jan 1900

REVISION

1.0
SR2B121B EU RoHS Declaration
ZIP

SR2B121B EU RoHS Declaration

VERSION

1.0

DATE

01 Jan 1900

REVISION

1.0
SR2B121B EU RoHS Declaration
ZIP

SR2B121B EU RoHS Declaration

VERSION

1.0

DATE

01 Jan 1900

REVISION

1.0
SR2B121B REACh Declaration
ZIP

SR2B121B REACh Declaration

VERSION

1.0

DATE

01 Jan 1900

REVISION

1.0
SR2B121B REACh Declaration
ZIP

SR2B121B REACh Declaration

VERSION

1.0

DATE

01 Jan 1900

REVISION

1.0
SR2B121B REACh Declaration
ZIP

SR2B121B REACh Declaration

VERSION

1.0

DATE

01 Jan 1900

REVISION

1.0
SR2B121B REACh Declaration
ZIP

SR2B121B REACh Declaration

VERSION

1.0

DATE

01 Jan 1900

REVISION

1.0
SR2B121B REACh Declaration
ZIP

SR2B121B REACh Declaration

VERSION

1.0

DATE

01 Jan 1900

REVISION

1.0
SR2B121B REACh Declaration
ZIP

SR2B121B REACh Declaration

VERSION

1.0

DATE

01 Jan 1900

REVISION

1.0
SR2B121B REACh Declaration
ZIP

SR2B121B REACh Declaration

VERSION

1.0

DATE

01 Jan 1900

REVISION

1.0
SR2B121B REACh Declaration
ZIP

SR2B121B REACh Declaration

VERSION

1.0

DATE

01 Jan 1900

REVISION

1.0
ZelioSoft2 (V5.4.3) programming software
ZIP

ZelioSoft2 (V5.4.3) programming software

VERSION

1.0

DATE

23 Sep 2025

REVISION

1.0

DOWNLOAD (ZIP) 413.1 MB
ZelioSoft2 (V5.2) programming software
ZIP

ZelioSoft2 (V5.2) programming software

VERSION

1.0

DATE

23 Sep 2025

REVISION

1.0

DOWNLOAD (ZIP) 72.5 MB
ZelioSoft2 (V4.6) programming software
ZIP

ZelioSoft2 (V4.6) programming software

VERSION

1.0

DATE

23 Sep 2025

REVISION

1.0

DOWNLOAD (ZIP) 521 MB
ZelioSoft2 (V5.4.2.2) programming software
ZIP

ZelioSoft2 (V5.4.2.2) programming software

VERSION

1.0

DATE

23 Sep 2025

REVISION

1.0

DOWNLOAD (ZIP) 94.8 MB
ZelioSoft2 (V5.4.2) programming software
ZIP

ZelioSoft2 (V5.4.2) programming software

VERSION

1.0

DATE

23 Sep 2025

REVISION

1.0

DOWNLOAD (ZIP) 104.3 MB
ZelioSoft2 (V5.1) programming software
ZIP

ZelioSoft2 (V5.1) programming software

VERSION

1.0

DATE

23 Sep 2025

REVISION

1.0

DOWNLOAD (ZIP) 58.3 MB
ZelioSoft2 (V5.0) programming software
ZIP

ZelioSoft2 (V5.0) programming software

VERSION

1.0

DATE

23 Sep 2025

REVISION

1.0

DOWNLOAD (ZIP) 152.7 MB
ZelioSoft2 (V5.4.0) programming software
ZIP

ZelioSoft2 (V5.4.0) programming software

VERSION

1.0

DATE

23 Sep 2025

REVISION

1.0

DOWNLOAD (ZIP) 171.9 MB
ZelioSoft2 (V4.6 Light) programming software
ZIP

ZelioSoft2 (V4.6 Light) programming software

VERSION

1.0

DATE

23 Sep 2025

REVISION

1.0

DOWNLOAD (ZIP) 72.4 MB
Zelio Soft 2, Release Notes
ZIP

Zelio Soft 2, Release Notes

VERSION

1.0

DATE

23 Sep 2025

REVISION

1.0

DOWNLOAD (ZIP) 285 KB

Recently viewed