Schneider EOCRSS-05RY7 Electronic Overload Relay – EOCR-SS Series
When a motor protection relay fails or is absent from a control panel, the consequences cascade fast: motors run unprotected against phase loss, overload, and ground faults, leading to catastrophic winding burnout, unplanned downtime, and costly emergency repairs. In high-stakes industrial environments — from chemical processing plants to automated assembly lines — a single unprotected motor failure can halt an entire production line for hours or days. The Schneider EOCRSS-05RY7 eliminates this risk by delivering precise, solid-state electronic overload protection that responds in milliseconds, long before thermal damage can occur.
The EOCR-SS Series represents Schneider Electric’s flagship line of solid-state electronic overload relays, engineered for demanding industrial motor control applications worldwide. The EOCRSS-05RY7 variant is specifically configured with a 0.5A current setting range and relay output (RY), making it the preferred choice for small motor protection circuits in compact MCC panels and OEM machinery. Trusted by automation engineers across Asia, Europe, and the Americas, the EOCR-SS Series is a benchmark product in the global industrial automation market.
Technical Specifications
- Model / SKU: EOCR-SS / EOCRSS-05RY7
- Brand: Schneider Electric (EOCR)
- Series: EOCR-SS (Solid State Electronic Overload Relay)
- Current Setting Range: 0.5A (as indicated by “05” in model code)
- Output Type: Relay Output (RY)
- Protection Functions: Overload, Phase Loss, Phase Unbalance, Ground Fault (model-dependent)
- Trip Class: Class 10 / Class 20 selectable
- Reset Mode: Manual / Auto selectable
- Mounting: DIN rail or panel mount
- Operating Temperature: -10°C to +55°C
- Weight: 325 g (approx.)
Note: All specifications are based on published EOCR-SS series datasheets. Verify exact parameters against the official product datasheet before installation.
Key Features & Benefits
- Solid-State Sensing Technology: Eliminates mechanical wear, ensuring long service life and consistent trip accuracy over thousands of operating cycles.
- Phase Loss & Unbalance Protection: Detects single-phasing and voltage unbalance conditions that are invisible to conventional bimetallic relays, preventing motor winding damage.
- Selectable Trip Class: Class 10 and Class 20 settings accommodate both standard and high-inertia motor loads without nuisance tripping.
- Relay Output (RY): Provides a clean dry-contact output for integration with PLCs, SCADA systems, and control panels.
- Compact DIN Rail Design: Space-efficient form factor fits standard 35mm DIN rails, simplifying panel layout and reducing wiring complexity.
- Manual / Auto Reset: Flexible reset options support both attended and unattended operation scenarios.
- Wide Industrial Certification: Compliant with IEC and UL standards for global deployment.
Industry & Equipment Applications
- Manufacturing & Assembly: Conveyor systems, robotic arms, CNC machine tool spindle motors
- Water & Wastewater Treatment: Pump motor protection in water treatment facilities and lift stations
- HVAC Systems: Compressor and fan motor protection in commercial and industrial HVAC units
- Oil & Gas: Wellhead pump motors, pipeline compressor stations
- Food & Beverage Processing: Mixer, conveyor, and packaging machine motors
- Building Automation: Elevator motor control panels, escalator drive systems
- OEM Panel Builders: Compact MCC (Motor Control Center) assemblies requiring reliable overload protection
System Integration & Compatible Parts
The EOCRSS-05RY7 is designed for seamless integration within Schneider Electric’s motor control ecosystem and is compatible with a broad range of industrial control components:
- Compatible Contactors: Schneider TeSys D Series (LC1D), TeSys K Series contactors
- Compatible PLCs: Schneider Modicon M221, M241, M340; Siemens S7-1200/1500; Mitsubishi FX/Q Series
- Panel Accessories: 35mm DIN rail, terminal blocks, DIN rail end stops
- Related EOCR Models: EOCRSS-05RM7, EOCRSS-1RY7, EOCRSS-2RY7, EOCRSS-4RY7
- Replacement Parts: EOCR-SS series sockets and mounting adapters
Our Quality Assurance Process
At Konmask.com, every EOCR-SS relay we supply undergoes a rigorous multi-stage quality verification process before shipment:
- Authenticity Verification: All units are sourced from authorized distributors or verified supply chains. Serial numbers and holographic labels are cross-checked against manufacturer records.
- Visual & Physical Inspection: Housing integrity, terminal condition, label clarity, and connector alignment are inspected against OEM standards.
- Functional Pre-Check: Where applicable, units are bench-tested for basic electrical continuity and output relay operation.
- Secure Packaging: Anti-static packaging with foam cushioning protects units during international transit.
- Documentation: Each shipment includes a packing list, and certificates of conformity are available upon request.
How to Order
- Submit an Inquiry: Contact us via the inquiry form on this page or email [email protected] with your required quantity and delivery destination.
- Receive a Quote: Our team will respond within 1 business day with pricing, lead time, and shipping options tailored to your project.
- Confirm & Pay: Review the proforma invoice, confirm your order, and complete payment via your preferred method (T/T, PayPal, or other arrangements).
- Shipment & Tracking: Your order is packed, shipped, and tracked. We provide full shipment documentation including commercial invoice and packing list.
- After-Sales Support: Our technical team is available post-delivery for installation guidance and troubleshooting assistance.
Why Choose Konmask.com?
- Industrial Automation Specialists: We focus exclusively on industrial control components — PLCs, DCS modules, drives, relays, and HMIs — from the world’s leading brands.
- Global B2B Supply: We serve OEM manufacturers, system integrators, MRO buyers, and engineering firms across 50+ countries.
- Fast Inquiry Response: Dedicated sales engineers respond to all technical inquiries within 24 hours.
- Competitive Pricing: Direct sourcing relationships allow us to offer competitive pricing on both small and large quantity orders.
- Reliable Logistics: Partnerships with DHL, FedEx, and UPS ensure safe, timely international delivery with full tracking.
- Technical Expertise: Our team includes experienced automation engineers who can assist with product selection, compatibility checks, and system integration advice.
Frequently Asked Questions
Q: What does “05” mean in the model number EOCRSS-05RY7?
A: The “05” designates the current setting range of the relay, corresponding to a 0.5A setting, suitable for small motor protection applications.
Q: What is the difference between EOCRSS-05RY7 and EOCRSS-05RM7?
A: The “RY” suffix indicates a relay (dry contact) output, while “RM” typically indicates a different output or mounting configuration. Confirm with the datasheet for your specific application requirements.
Q: Can the EOCRSS-05RY7 protect against ground faults?
A: Ground fault protection availability depends on the specific EOCR-SS variant configuration. Please consult the official Schneider Electric EOCR-SS datasheet or contact our technical team for confirmation.
Q: Is this product available for immediate shipment?
A: Stock availability varies. Please submit an inquiry with your required quantity and we will confirm lead time and availability within 1 business day.
Q: Do you provide a warranty on this product?
A: Yes. All products supplied by Konmask.com are covered by our standard quality guarantee. Please contact us for warranty terms applicable to your order.
Q: Can I order a single unit for testing or evaluation?
A: Yes, we accept both single-unit sample orders and bulk purchase orders. Contact us to discuss your requirements.
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