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Schneider Electric SR2A101BD

Schneider Zelio Logic SR2A101BD smart relay, 24V DC, 6 input

MPNSR2A101BD
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Schneider Electric Zelio Logic SR2A101BD compact smart relay, 24 V DC supply voltage, 6 discrete inputs, relay outputs, no clock.

$67.31Ref. price · indicative, final on quote
Schneider Electric SR2A101BD datasheet (PDF)
StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
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Specifications

SR2A101BD key specifications
ParameterValue
Range of productZelio Logic
Discrete input typeResistive
Product or component typeCompact smart relay
Supply voltage limits19.2...30 V
Discrete input voltage24 V DC
Supply voltage24 V DC
Voltage state 0 guaranteed= 1.2 mA IB...IG used as discrete input circuit) >= 2.2 mA I1...IA and IH...IR discrete input circuit)
Voltage state 1 guaranteed>= 15 V I1...IA and IH...IR discrete input circuit >= 15 V IB...IG used as discrete input circuit
[Uimp] rated impulse withstand voltage4 kV EN/IEC 60947-1 and EN/IEC 60664-1
Discrete input current4 mA
Maximum supply current100 mA without extension)
Current state 0 guaranteed= 10 mA 12 V relay output)

All specifications

SR2A101BD additional specifications
ParameterValue
Power dissipation in3 W without extension
Counting frequency1 kHz discrete input
Operating rate in0.1 Hz at Ie)relay output 10 Hz no load)relay output
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 time10 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 61000-4-4 level 3 IEC 60068-2-27 Ea IEC 61000-4-3 IEC 61000-4-11 IEC 61000-4-12 IEC 60068-2-6 Fc IEC 61000-4-6 level 3 IEC 61000-4-5 IEC 61000-4-2 level 3
ClockWithout
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 displayWith
Tightening torque4.4 lbf.in (0.5 N.m)
Overvoltage categoryIII conforming to IEC 60664-1
Discrete input number6 IEC 61131-2 Type 1
Immunity to microbreaks1 ms
Reverse polarity protectionWith
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
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

Schneider Zelio Logic SR2A101BD is a compact smart relay running on 24 V DC, with 6 discrete inputs and relay outputs. No real-time clock on this variant – it's clean ladder logic only, no time-stamping. Program memory is checked on every power-up, so you know the firmware is intact before the machine runs.

Supply voltage range is 19.2...30 V DC, so it handles a weak battery line or a floating 24 V rail. Power draw is 3 W without expansion modules; maximum supply current 100 mA. Cycle time 6...90 ms – fast enough for simple machine sequences, not for high-speed counting. Inputs are resistive type, 24 V DC, 4 mA draw, IEC 61131-2 Type 1. Counting frequency is 1 kHz on those inputs – suitable for counting parts on a conveyor, not encoder feedback. Relay output response time: 10 ms on, 5 ms off. Mechanical durability rated at 10 million cycles. IP20 on the terminals, IP40 on the front panel – typical for control panel mounting. Standards met include IEC 61000-4-2/3/4/5/6/11/12 and IEC 60068-2-27/6, so it’s EMC-hardened for industrial environments.

Sourcing reality

This is a current-production item. No EOL notice, no last-time-buy pressure. I can quote it against an RFQ – just tell me the quantity and whether you need the base unit alone or with expansion modules. No clock means you’re not paying for a feature you don’t use.

Frequently asked questions

Does the SR2A101BD have a real-time clock?

No – the listed clock is 'Without'. This variant omits the RTC, so time-stamped logging or time-based schedules are not available on the base unit.

What does 'Checks Program memory on each power up' mean?

The smart relay checks its stored program integrity at every startup. If the firmware or ladder logic is corrupted, it will not run – a failsafe for unattended or safety-related applications.

What are the key compliance standards?

It meets IEC 61131-2, IEC 61000-4-2/3/4/5/6/11/12 (Level 3 for ESD, burst, surge), IEC 60068-2-27 (shock), IEC 60068-2-6 (vibration), and EN 55022 Class B (radiated/conducted emissions).

MPN
SR2A101BD