YingZhou Industrial Automation | Product Information
Schneider SR3B261BD Zelio Logic 26 I/O Modular Smart Relay
16 Inputs (6 Analog-Capable) | 10 Relay Outputs | 24V DC | Clock & Display
| Specification |
Product Data |
| Brand |
Schneider Electric |
| Exact Model |
SR3B261BD |
| Product Range |
Zelio Logic SR3 |
| Product Type |
Modular Smart Relay / Programmable Logic Relay |
| Total Digital I/O |
26 (16 Inputs + 10 Relay Outputs) |
| Digital Input Count |
16 (including 6 analog-capable inputs) |
| Discrete Input Voltage |
24 V DC |
| Discrete Input Current |
4 mA |
| Discrete Input Type |
Resistive, IEC 61131-2 Type 1 |
| Discrete Counting Frequency |
1 kHz |
| Analog-Capable Inputs |
6 shared with the 16 digital inputs (IB–IG) |
| Analog Input Ranges |
0–10 V DC / 0–24 V DC |
| Analog Input Resolution |
8-bit |
| Analog Input Impedance |
12 kΩ (analog-capable input circuits) |
| Analog Input Maximum Voltage |
30 V DC |
| Relay Output Count |
10 |
| Relay Contact Type |
Normally Open (NO) |
| Relay Output Voltage Limits |
5–30 V DC / 24–250 V AC |
| Relay Output Thermal Current |
8 A for 8 outputs; 5 A for 2 outputs (observe load category) |
| Rated Supply Voltage |
24 V DC |
| Supply Voltage Limits |
19.2–30 V DC |
| Maximum Supply Current |
190 mA without extension; 300 mA with extensions |
| Power Dissipation |
6 W without extension; 10 W with extensions (official datasheet) |
| Reverse Polarity Protection |
Yes |
| Local Display |
Yes |
| Integrated Clock |
Yes |
| Clock Drift |
6 seconds/month at 25°C; 12 minutes/year at 0–55°C |
| Programming Languages |
Ladder Logic / Function Block Diagram (FBD) |
| Ladder Program Capacity |
Up to 240 control scheme lines |
| FBD Program Capacity |
Up to 500 control scheme lines |
| Cycle Time |
6–90 ms |
| Backup Time |
10 years at 25°C |
| Input Compatibility |
3-wire PNP proximity sensors (digital mode) |
| Discrete I/O Extension |
Supported with compatible Zelio Logic SR3XT 24 V DC extensions; verify exact model |
| Terminal Type |
Screw terminals |
| Terminal Tightening Torque |
0.5 N·m |
| Mounting |
35 mm DIN rail / screw fixing with retractable lugs |
| Protection Rating |
IP20 (terminal block) / IP40 (front panel) |
| Operating Temperature |
−20°C to +55°C; maximum +40°C in non-ventilated enclosure |
| Net Weight |
0.40 kg |
| EAN |
3389110549980 |
Product Overview
The Schneider Electric SR3B261BD is a
Zelio Logic SR3 modular smart relay featuring
26 total digital I/O points, comprising
16 digital inputs and 10 normally open relay outputs.
Six of the 16 digital inputs can also be configured for
0–10 V or 0–24 V analog voltage signals with 8-bit
resolution; they are shared terminals, not additional I/O points.
The controller operates with a 24 V DC supply and includes an
integrated clock and local display. It supports
Ladder Logic and FBD programming with up to 240
Ladder or 500 FBD control scheme lines. Of the ten relay outputs,
eight have an 8 A thermal current rating and two have a 5 A
thermal current rating, subject to switching-load categories.
It supports compatible Zelio Logic SR3 expansions and 35 mm DIN rail
or screw mounting. Confirm exact-model voltage, shared analog-input
assignments, relay load and extension-module compatibility before ordering.
Key Product Features
-
26 total digital I/O with 16 DC inputs and 10 normally open relay outputs
-
6 analog-capable inputs shared within the 16 digital inputs, for 0–10 V or 0–24 V voltage sensing
-
24 V DC rated supply with 19.2–30 V DC allowable supply range
-
10 relay outputs: 8 rated 8 A and 2 rated 5 A thermal current, subject to switching-load categories
-
Integrated clock and local display for scheduled logic and on-unit settings
-
Ladder and FBD programming with up to 240 Ladder or 500 FBD control scheme lines
-
Modular SR3 architecture with compatible I/O extensions, screw terminals and DIN rail or screw mounting
Actual Product Verification
✓
Actual product photos
✓
Model/nameplate visible
✓
Packaging shown
✓
Verify exact model SR3B261BD before ordering
In Stock & Ready to Order
Schneider Electric SR3B261BD is currently in stock.
Actual smart relay/nameplate and packaging-label photographs
are provided for exact-model verification before ordering.
