SR3B261BD Schneider Electric Zelio Logic Modular Smart Relay - 26 I/O 24V DC
Manufacturer: Schneider Electric
Product No.: SR3B261BD
Condition： In stock
Product Type: Modular Smart Relay
Product Origin: FR
Payment: T/T, Western Union
Weight: 500g
Shipping port: Xiamen
Warranty: 12 months
Estimate delivery times: 12-26 days (International), 3-6 days (United States).
Return within 30 days of purchase. Duties & taxes are non-refundable.
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Engineering Architecture & Modular Flexibility
- The SR3B261BD is an advanced modular smart relay engineered by Schneider Electric within the Zelio Logic series to support expanded automation architectures.
- Featuring 16 digital inputs—with 6 fully configurable as 0-10V analog inputs—it accommodates direct sensor feedback without requiring auxiliary analog interface cards.
- Global PLC Spare HUB's Insight: System integrators frequently select the SR3B261BD for complex OEM skids because its modular communication bus easily accommodates Ethernet (SR3NET01BD) or RS485 extension modules for remote SCADA integration.
Configuration & Technical Specifications Table
| Engineering Parameter | Operational Specification |
|---|---|
| Brand & Core Model | Schneider Electric SR3B261BD (Zelio Logic Modular Series) |
| Total I/O Points | 26 I/O base configuration (16 digital inputs, 10 relay outputs) |
| Special Input Features | 6 inputs configurable for analog 0-10V signals; standard 24V DC Type 1 inputs |
| Power Supply Rating | 24V DC nominal (19.2V to 30V operating window) |
| Relay Output Limits | 5 A per output channel with high mechanical and electrical endurance cycles |
| Programming Capacity | 240 ladder lines or 500 Function Block Diagram (FBD) processing blocks |
| Physical Footprint | 35 mm DIN rail mounting, 90 × 124.6 × 59.5 mm (H×W×D), weight: 0.30 kg |
| Ambient Temperature | -20°C to +55°C operational thermal threshold |
Field Installation & Communication Wiring
- Snap the SR3B261BD securely onto standard 35 mm DIN rails, leaving adequate side clearance for attaching communication expansion modules.
- Ensure shielded twisted-pair cables are utilized when wiring the 6 analog-configurable inputs to prevent electromagnetic interference from nearby variable frequency drives.
- Global PLC Spare HUB Review: Field technicians recommend securing communication extension bus connectors with locking tabs to prevent intermittent data drops in high-vibration marine and mobile machinery enclosures.
Diagnostic Intelligence & Status Feedback
- The front-panel LCD interface provides immediate access to active I/O states, analog scaling values, and custom user diagnostic alarm strings.
- Internal watchdog timers and memory checksum routines monitor execution loops continuously to isolate logic faults during plant commissioning.
Target Industrial Equipment & Applications
- Automated wastewater treatment blower control and chemical metering skids.
- Multi-zone commercial HVAC ventilation and refrigeration monitoring panels.
- Industrial conveyor sorting hubs requiring networked data logging.
- Agricultural irrigation pumping stations with remote sensor feedback.
Global Logistics, Traceability & Warranty
- Delivered in secure industrial anti-static packaging with complete factory inspection verification.
- Backed by a reliable 12-month operational warranty covering material workmanship and hardware defects.
- Expedited global dispatch within 24-48 hours via top-tier express carriers: FedEx, UPS, and DHL.
Advanced Technical FAQ
Q: How do I configure the analog input feature on the SR3B261BD?
A: Inputs I1 through I6 can be software-configured as 0-10V analog inputs directly within Zelio Soft programming software without hardware jumpers.
Q: Can this modular smart relay connect to a supervisory SCADA network via Ethernet?
A: Yes, by attaching the compatible SR3NET01BD Ethernet extension module to the side communication port, remote web monitoring and Modbus TCP communication are enabled.
Q: What happens to user programs and real-time clock settings during an extended power interruption?
A: The internal flash memory retains the user application indefinitely without a battery, while the real-time clock maintains timekeeping functions.
Q: How can I prevent false analog readings caused by electrical noise in heavy industrial plants?
A: Always use shielded cable for analog sensor runs, ground the shield at one end only, and keep signal wires away from high-voltage motor power cables.
Q: Is it possible to expand the physical I/O count beyond the base 26 points?
A: Yes, Zelio Logic modular expansion blocks can be coupled to the base unit to scale up digital and analog input/output capacity.
Procurement & Selection Guide
- Evaluate whether your application requires built-in analog scaling capabilities; choosing the SR3B261BD saves panel space by eliminating separate analog converter modules.
- Procure through authorized supply partners like Global PLC Spare HUB to ensure certified Schneider Electric hardware origin and full warranty protection.
- Keep compatible communication modules and spare base units in stock to facilitate rapid system upgrades during scheduled facility turnarounds.
Tags
Q: Are these parts 100% original and new?
A: Yes. Every component is guaranteed to be 100% original, brand-new, and factory-sealed. We also provide a 12-month comprehensive warranty for your peace of mind.
Q: How fast is the shipping to my country?
A: For in-stock items, we offer same-day dispatch. International express shipping (DHL/FedEx/UPS) typically delivers within 3–5 business days worldwide.
Q: Can I get a formal quotation with shipping costs?
A: Absolutely. Our sales team is ready to provide a detailed Proforma Invoice (PI) including the most competitive shipping rates for your location.
Q: Do you offer discounts for bulk orders?
A: We provide volume-based pricing for large projects or multiple-item orders. Please contact us to get our Best Price Guarantee.
12-Month Comprehensive Warranty
Every part supplied by Global PLC Spare Hub is covered by a 12-month warranty from the date of invoice.
- Coverage: Functional defects and hardware failures under normal operating conditions.
- Commitment: We provide immediate repair, replacement, or a full refund for any verified defective components to minimize your operational downtime.
Returns & Exchange Policy
We offer a 30-day return policy to ensure you receive the exact part your system requires.
- Eligibility: Returns are accepted for uninstalled items in their original, factory-sealed packaging.
- RMA Process: Please contact our support team to obtain a Return Merchandise Authorization (RMA) number before shipping.
- Fast Processing: Refunds or exchanges are processed within 3–5 business days after the returned item passes our technical inspection.
Need Technical Assistance?Not sure if this part is compatible with your system? [Consult our Engineers] before purchasing to ensure 100% compatibility.
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