Schneider Electric Zelio Logic SR2 SR3, SR3B262BD Modular Smart Relay
Product Data Sheet
Product Overview
The Zelio Logic SR2 SR3 is a modular smart relay from Schneider Electric, featuring 26 I/O, 24V DC power, a clock, a display, and 10 transistor outputs. The model SR3B262BD is designed for automation and control applications.
Product Availability: Stock - Normally stocked in distribution facility.
Main Specifications
| Range of Product | Zelio Logic |
| Product or Component Type | Modular smart relay |
Complementary Specifications
| Local display | With |
| Number of control scheme lines | 0...500 FBD / 0...240 ladder |
| Cycle time | 6...90 ms |
| Backup time | 10 years at 77 °F (25 °C) |
| Clock drift | 12 min/year at 32...131 °F (0...55 °C) / 6 s/month at 77 °F (25 °C) |
| Checks | Program memory on each power up |
| [Us] rated supply voltage | 24 V |
| Supply voltage limits | 19.2...30 V |
| Maximum supply current | 180 mA (with extensions) / 70 mA (without extension) |
| Power dissipation in W | 10 W (with extensions) / 5 W (without extension) |
| Reverse polarity protection | With |
| Discrete input number | 16 (IEC 61131-2 Type 1) |
| Discrete input type | Resistive |
| Discrete input voltage | 24 V DC |
| Discrete input current | 4 mA |
| Counting frequency | 1 kHz (discrete input) |
| Voltage state 1 guaranteed | >= 15 V (I1...IA and IH...IR discrete input circuit) / >= 15 V (IB...IG used as discrete input circuit) |
| Voltage state 0 guaranteed | <= 5 V (I1...IA and IH...IR discrete input circuit) / <= 5 V (IB...IG used as discrete input circuit) |
| Current state 1 guaranteed | >= 1.2 mA (IB...IG used as discrete input circuit) / >= 2.2 mA (I1...IA and IH...IR discrete input circuit) |
| Current state 0 guaranteed | <= 0.5 mA (IB...IG used as discrete input circuit) / <= 0.75 mA (I1...IA and IH...IR discrete input circuit) |
| Input compatibility | 3-wire proximity sensors PNP (discrete input) |
| Analogue input number | 6 |
| Analogue Input Type | Common mode |
| Analogue input range | 0...24 V / 0...10 V |
| Temperature probe type | NTC 10k at 77 °F (25 °C), NTC 1000k at 77 °F (25 °C), KTY81 210/220/221/222/250, Pt 500 |
| Maximum permissible voltage | 30 V (analogue input circuit) |
| Analogue input resolution | 8 bits |
| LSB value | 39 mV (analogue input circuit) |
| Conversion time | Smart relay cycle time (analogue input circuit) |
| Conversion error | +/- 5% at 77 °F (25 °C) (analogue input circuit) / +/- 6.2% at 131 °F (55 °C) (analogue input circuit) / +/- 2% at 131 °F (55 °C) (analogue input circuit) |
| Repeat accuracy | +/- 2% at 131 °F (55 °C) (analogue input circuit) |
| Operating distance | 10 m (between stations, with screened cable (sensor not isolated) analogue input circuit) |
| Input impedance | 12 kOhm (IB...IG used as analogue input circuit) / 12 kOhm (IB...IG used as discrete input circuit) / 7.4 kOhm (I1...IA and IH...IR discrete input circuit) |
| Number of Outputs | 10 transistor |
| Output voltage | 24 V (transistor output) |
| Output voltage limits | 19.2...30 V DC (transistor output) |
| [Uimp] rated impulse withstand voltage | 4 kV (EN/IEC 60947-1 and EN/IEC 60664-1) |
| Load current | 0.5...0.625 A (transistor output) |
| [Ures] residual voltage | 2 V (at state 1 transistor output) |
| Overload protection | With transistor output |
| Short-circuit protection | With transistor output |
| Overvoltage protection | With transistor output |
| Clock | With |
| Response time | <= 1 ms (from state 0 to state 1) (transistor output) / <= 1 ms (from state 1 to state 0) (transistor 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) |
| Tightening torque | 4.4 lbf.in (0.5 N.m) |
| Overvoltage category | III (conforming to IEC 60664-1) |
| Net Weight | 0.7 lb(US) (0.3 kg) |
Environment
| Immunity to microbreaks | 1 ms |
| Product Certifications | C-tick, GOST, UL, CSA, GL |
| Standards | IEC 60068-2-27 Ea, IEC 61000-4-5, IEC 61000-4-11, IEC 61000-4-6 level 3, IEC 61000-4-12, IEC 61000-4-4 level 3, IEC 61000-4-3, IEC 61000-4-2 level 3, IEC 60068-2-6 Fc |
| IP degree of protection | IP20 (IEC 60529 terminal block) / IP40 (IEC 60529 front panel) |
| 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 |
| Disturbance radiated/conducted | Class B (EN 55022-11 group 1) |
| Pollution degree | 2 (IEC 61131-2) |
| 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 |
| Ambient Air Temperature for Storage | -40...158 °F (-40...70 °C) |
| Operating altitude | 6561.68 ft (2000 m) |
| Maximum altitude transport | 10000 ft (3048 m) |
| Relative Humidity | 95% without condensation or dripping water |
Ordering and Shipping Details
| Category | US1000122378 |
| Discount Schedule | 0001 |
| GTIN | 3389110549997 |
| Returnability | Yes |
| Country of origin | FR |
Packing Units
Unit Type of Package 1: PCE
| Number of Units in Package 1 | 1 |
| Package 1 Height | 2.68 in (6.800 cm) |
| Package 1 Width | 3.94 in (10.000 cm) |
| Package 1 Length | 5.31 in (13.500 cm) |
| Package 1 Weight | 10.794 oz (306.000 g) |
Unit Type of Package 2: S03
| Number of Units in Package 2 | 20 |
| Package 2 Height | 11.81 in (30.000 cm) |
| Package 2 Width | 11.81 in (30.000 cm) |
| Package 2 Length | 15.75 in (40.000 cm) |
| Package 2 Weight | 14.544 lb(US) (6.597 kg) |
Contractual Warranty
| Warranty | 18 months |
Environmental Data
Schneider Electric aims to achieve Net Zero status by 2050 through supply chain partnerships, lower impact materials, and circularity via its ongoing "Use Better, Use Longer, Use Again" campaign to extend product lifetimes and recyclability.
Environmental footprint: Carbon footprint (kg CO2 eq, Total Life cycle): 116
Materials and Substances:
- Packaging made with recycled cardboard: Yes
- Packaging without single use plastic: Yes
- EU RoHS Directive: Pro-active compliance (Product out of EU RoHS legal scope)
- SCIP Number: Eee2fc35-1620-4b70-b1d5-206e9240044e
- REACH Regulation: REACH Declaration. 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
- PVC free: Yes
Repack and remanufacture:
- Circularity Profile: End of Life Information
- Take-back: No
- WEEE: The product must be disposed on European Union markets following specific waste collection and never end up in rubbish bins.
Dimensions Drawings
Compact and Modular Smart Relays
Mounting on 35 mm/1.38 in. DIN Rail
Diagram showing dimensions for DIN rail mounting.
(1) With SR2USB01 or SR2BTC01
Screw Fixing (Retractable Lugs)
Diagram showing dimensions for screw fixing with retractable lugs.
(1) With SR2USB01 or SR2BTC01
Position of Display
Diagram showing the position of the display on the unit.
Connections and Schema
Compact and Modular Smart Relays
Connection of Smart Relays on DC Supply
Schematic diagram for connecting smart relays to DC supply.
Notes:
- (1) 1 A quick-blow fuse or circuit-breaker.
- (2) Fuse or circuit-breaker.
- (3) Inductive load.
- (4) Q9 and QA: 5 A (max. current in terminal C: 10 A).
Discrete Input Used for 3-Wire Sensors
Schematic diagram for discrete input used with 3-wire sensors.
Notes:
- (1) 1 A quick-blow fuse or circuit-breaker.
Analog Inputs
Schematic diagram for analog inputs.
Notes:
- (1) 1 A quick-blow fuse or circuit-breaker.
- (2) Ca: Analog sensor / Ta: Analog transmitter.
- (3) Recommended values: 2.2 kΩ / 0.5 W (10 kΩ max.)
- (4) Screened cables, maximum length 10 m / 32.80 feet.
- (5) Analog inputs according to Zelio Logic smart relay type (see table below)
- (6) 0-10 Vdc ANALOG
Smart Relays Analog Inputs Table
| Model | Analog Inputs |
| SR2-12-D | IB...IE |
| SR2A201BD | IB and IC |
| SR2D201BD | IB and IC |
| SR2B20-D | IB...IG |
| SR2E201BD | IB...IG |
| SR3B10-BD | IB...IE |
| SR3B26-D | IB...IG |
Connection of Smart Relays on DC Supply, with Discrete I/O Extension Modules
Schematic diagram for connecting smart relays with discrete I/O extension modules.
Notes:
- (1) 1 A quick-blow fuse or circuit-breaker.
- (2) Ca: Analog sensor / Ta: Analog transmitter.
- (3) Recommended values: 2.2 kΩ / 0.5 W (10 kΩ max.)
- (4) Screened cables, maximum length 10 m / 32.80 feet.
NOTE: QF and QG : 5 A for SR3XT141.
Connection of Thermistor Input on DC Supply
Schematic diagram for connecting thermistor input on DC supply.
NOTE: Ix = IB...IG
Performance Curves
Compact and Modular Smart Relays
Electrical Durability of Relay Outputs
(in millions of operating cycles, conforming to IEC/EN 60947-5-1)
DC-12
X: Current (A)
Y: Millions of operating cycles
(1) DC-12: control of resistive loads and of solid state loads isolated by opto-coupler, L/R ≤ 1 ms.
Graph showing electrical durability for DC-12 control of resistive loads.
DC-13
X: Current (A)
Y: Millions of operating cycles
(1) DC-13: switching electromagnets, L/R ≤ 2 x (Ue x Ie) in ms, Ue: rated operational voltage, Ie: rated operational current (with a protection diode on the load, DC-12 curves must be used with a coefficient of 0.9 applied to the number in millions of operating cycles).
Graph showing electrical durability for DC-13 switching electromagnets.
Image of product / Alternate images
Alternative images of the Zelio Logic SR3B262BD smart relay are available.
