Skip to main content
Log in
Schneider Electric SR2E201B

Schneider SR2E201B Zelio Logic Smart Relay, 12 Inputs

MPNSR2E201B
Active

Schneider Zelio Logic SR2E201B compact smart relay, 12 discrete inputs, 24 VAC supply, cycle time 6-90 ms, backup time 10 years at 25 °C.

$95.25Ref. price · indicative, final on quote
Schneider Electric SR2E201B datasheet (PDF)
StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
How we verify every order →

Specifications

SR2E201B key specifications
ParameterValue
Protection typeAgainst inversion of terminals (control instructions not executed)
Range of productZelio Logic
Product or component typeCompact smart relay
Isolation voltage1780 V
Supply voltage limits20.4...28.8 V
Discrete input voltage24 V AC
Supply voltage24 V AC
Voltage state 0 guaranteed= 2 mA discrete input)
Voltage state 1 guaranteed>= 14 V discrete input
[Uimp] rated impulse withstand voltage4 kV EN/IEC 60947-1 and EN/IEC 60664-1
Discrete input current4.4 mA
Maximum supply current233 mA without extension)

All specifications

SR2E201B additional specifications
ParameterValue
Current state 0 guaranteed= 10 mA 12 V relay output)
Power consumption in6 VA without extension
Supply frequency50/60 Hz
Operating rate in0.1 Hz at Ie)relay output 10 Hz no load)relay output
Discrete input frequency47...53 Hz 57...63 Hz
IP degree of protectionIP20 IEC 60529 terminal block) IP40 IEC 60529 front panel)
Connections - terminalsScrew 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
Response time50 ms ladder from state 0 to state 1)discrete input 50 ms ladder from state 1 to state 0)discrete input 50...255 ms FBD from state 0 to state 1)discrete input 50...255 ms FBD from state 1 to state 0)discrete input 10 ms from state 0 to state 1)relay output 5 ms from state 1 to state 0)relay output
Pollution degree2 IEC 61131-2
Relative humidity95 % without condensation or dripping water
Operating altitude6561.68 ft (2000 m)
Maximum altitude transport10000 ft (3048 m)
Mechanical durability10000000 cycles relay output
StandardsIEC 61000-4-12 IEC 61000-4-11 IEC 61000-4-6 level 3 IEC 61000-4-3 IEC 61000-4-5 IEC 60068-2-27 Ea IEC 61000-4-2 level 3 IEC 61000-4-4 level 3 IEC 60068-2-6 Fc
ClockWith
ChecksProgram memory on each power up
CategoryUS1000I22378
Cycle time6...90 ms
Backup time10 years 77 °F (25 °C)
Clock drift12 min/year 32...131 °F (0...55 °C) 6 s/month 77 °F (25 °C)
Local displayWithout
Tightening torque4.4 lbf.in (0.5 N.m)
Overvoltage categoryIII conforming to IEC 60664-1
Discrete input number12
Immunity to microbreaks10 ms repeated 20 times
Environmental characteristicEMC 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
Disturbance radiated (conducted)Class B EN 55022-11 group 1
Number or control scheme lines0...240 ladder 0...500 FBD
Ambient air temperature for storage-40...158 °F (-40...70 °C)
Ambient air temperature for operation-4...104 °F (-20...40 °C) in non-ventilated enclosure IEC 60068-2-1 and IEC 60068-2-2 -4...131 °F (-20...55 °C) IEC 60068-2-1 and IEC 60068-2-2

Product details

The Schneider SR2E201B Zelio Logic compact smart relay runs a 6-90 ms cycle time and holds a backup real-time clock for 10 years at 25 °C. It packs 12 discrete inputs, 24 VAC supply, and relay outputs rated for 10 Hz at rated load and 0.1 Hz at full load — enough for simple machine sequencing and lighting controls. Program memory is checked on each power-up, and the RTC drifts 12 minutes per year over the 0-55 °C range — acceptable for most time-switch applications.

Key ratings for your control logic

Discrete input response is 50 ms both ways in ladder logic; in FBD, it's adjustable 50-255 ms. Relay output switching takes 10 ms on / 5 ms off. Isolation voltage is 1780 V, overvoltage category III per IEC 60664-1, so it's fine for direct connection to 24 VAC control transformers without additional isolation. Supply draws 6 VA (233 mA max) without expansion modules. Environmental specs include IP20 on terminals, IP40 front panel, 95% RH non-condensing, and altitude to 2000 m — standard cabinet fit for clean industrial environments.

Frequently asked questions

What clock does the SR2E201B include?

It includes a real-time clock (RTC) with a backup life of 10 years at 25 °C and a drift of 12 minutes per year over 0-55 °C.

What checks does the SR2E201B perform on startup?

It checks program memory on each power-up.

What compliance documentation is available for the SR2E201B?

The smart relay complies with IEC 61000-4-x (EMC immunity levels 2-3), IEC 60068-2-27 (shock), IEC 60068-2-6 (vibration), and EMC directives per IEC 61000-6-2, -6-3, and -6-4. It also meets IEC 61131-2 and low voltage directive requirements.

MPN
SR2E201B