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Schneider Electric SR3XT141B

Schneider SR3XT141B Zelio Logic 14 I/O Extension Module

MPNSR3XT141B
Active

Schneider Zelio Logic, discrete I/O extension module, SR3XT141B, 8 discrete inputs, 24 V AC supply, screw terminals.

$50.80Ref. price · indicative, final on quote
Schneider Electric SR3XT141B 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

SR3XT141B key specifications
ParameterValue
Range of productZelio Logic
Product or component typeDiscrete I/O extension module
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
Current state 0 guaranteed= 10 mA 12 V relay output)
Supply frequency50/60 Hz
Operating rate in0.1 Hz at Ie)relay output 10 Hz no load)relay output

All specifications

SR3XT141B additional specifications
ParameterValue
Discrete input frequency57...63 Hz 47...53 Hz
IP degree of protectionIP20 IEC 60529 terminal block) IP40 IEC 60529 front panel)
Connections - terminalsScrew terminals, 1 x 0.25...1 x 2.5 mm² AWG 24...AWG 14) flexible with cable end Screw terminals, 2 x 0.25...2 x 0.75 mm² AWG 24...AWG 18) flexible with cable end 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, 2 x 0.2...2 x 1.5 mm² AWG 24...AWG 16) solid
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 61000-4-5 IEC 61000-4-4 level 3 IEC 61000-4-6 level 3 IEC 60068-2-27 Ea IEC 61000-4-11 IEC 61000-4-3 IEC 61000-4-2 level 3 IEC 60068-2-6 Fc IEC 61000-4-12
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)
Tightening torque4.4 lbf.in (0.5 N.m)
Overvoltage categoryIII conforming to IEC 60664-1
Discrete input number8
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 lines120 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

The SR3XT141B is a discrete I/O extension module for the Zelio Logic smart relay family. It adds 8 discrete inputs accepting 24 V AC, expanding I/O count of a base unit without an additional controller. The 10-year program memory backup at 25 °C means retention holds across extended power-downs—no battery change anxiety on a line with intermittent power.

Installation and Wiring

Mounts on DIN rail; IP20 at the terminals, IP40 on the front panel—fine for clean control cabinets. Screw terminals accept 0.2–2.5 mm² solid or stranded, with a tightening torque of 0.5 N·m. Supply range is 20.4–28.8 V AC at 50/60 Hz. Discrete input voltage is 24 V AC, 4.4 mA per input. Response time on inputs is 50 ms for ladder logic, 50–255 ms for FBD. Relay outputs switch at 0.1 Hz at rated current, 10 Hz no-load.

Compliance and Environment

EMC compliance per IEC 61000-6-2, 6-3, 6-4; IEC 61131-2 Zone B for low voltage. Conducted/radiated emissions Class B per EN 55022-11. Operating temperature -20 to 55 °C (non-ventilated enclosure limited to -20 to 40 °C). Storage -40 to 70 °C. Humidity 95% non-condensing.

Frequently asked questions

What is the 'Checks' listed for SR3XT141B?

The part performs a program memory check on each power-up. This verifies that the retained program remains intact.

What is the Category code for SR3XT141B?

The category code listed is US1000I22378. This is a internal classification identifier.

What compliance documentation does Schneider provide for SR3XT141B?

The module meets IEC 61000-4-5, IEC 61000-4-4 (level 3), IEC 61000-4-6 (level 3), IEC 61000-4-3, IEC 61000-4-2 (level 3), IEC 60068-2-27, IEC 60068-2-6, IEC 61000-4-11, IEC 61000-4-12, and IPC 2. EMC directive per IEC 61000-6-2/6-3/6-4, low voltage directive per IEC 61131-2. Emissions Class B per EN 55022-11.

MPN
SR3XT141B