Schneider Electric SR2B121B Compact Smart Relay, Zelio Logic SR2 SR3, 12 Io, 24V Ac, Clock, Display

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Schneider Electric SR2B121B Compact Smart Relay, Zelio Logic SR2 SR3, 12 Io, 24V Ac, Clock, Display

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Schneider Electric SR2B121B Compact Smart Relay, Zelio Logic SR2 SR3, 12 Io, 24V Ac, Clock, Display

Brand:	SCHNEIDER ELECTRIC
Model:	SR2B121B

Technical Data Sheets

Environmental disclosure

Specifications

View other Programmable Logic Controllers dimensions or variations

Product Or Component Type

Compact smart relay

Range Of Product

Zelio Logic

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

Relative Humidity

95 % without condensation or dripping water

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

Operating Altitude

2000 m

Product Certifications

C-Tick CSA GL UL GOST

[Us] Rated Supply Voltage

24 V AC

Overvoltage Category

III conforming to IEC 60664-1

Pollution Degree

2 conforming to IEC 61131-2

Discrete Input Number

Discrete Input Voltage

24 V AC

Discrete Input Current

4.4 mA

Input Impedance

4.6 kOhm for discrete input

Analogue Input Number

[Uimp] Rated Impulse Withstand Voltage

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

Number Of Outputs

4 relay

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

Mechanical Durability

10000000 cycles for relay output

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

Tightening Torque

0.5 N.m

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

Current State 0 Guaranteed

<= 0.5 mA (discrete input)

Current State 1 Guaranteed

>= 2 mA (discrete input)

Contacts Type And Composition

NO for relay output

Immunity To Microbreaks

10 ms repeated 20 times

Supply Voltage Limits

20.4…28.8 V

Switching Capacity In Ma

>= 10 mA at 12 V (relay output)

Protection Type

Against inversion of terminals (control instructions not executed)

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

Local Display

With

Number Or Control Scheme Lines

0…240 with ladder programming 0…500 with FBD programming

Cycle Time

6…90 ms

Backup Time

10 years at 25 °C

Clock Drift

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

Checks

Program memory on each power up