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Phone：+86 15383419322Description
The Carlo Gavazzi CSR70 is a high-reliability safety relay module designed for machinery protection systems requiring SIL 3 (IEC 62061) and PL e (ISO 13849-1) certified performance. As part of Carlo Gavazzi’s modular safety platform, the CSR70 monitors dual-channel safety inputs (e.g., emergency stops, light curtains, safety mats) with cross-circuit monitoring to detect contact welding or circuit faults. Its force-guided contacts (EN 50205) ensure positive mechanical linkage between contacts, guaranteeing fail-safe operation during critical events. The relay features built-in diagnostic LEDs for real-time status monitoring and supports manual/auto reset configurations. With a compact 22.5mm DIN-rail footprint and IP20 protection, the Carlo Gavazzi CSR70 delivers robust safety control for industrial automation while simplifying compliance with global machinery directives.
CSP CSR70
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | CSR70 |
| Manufacturer | Carlo Gavazzi |
| Product Type | Safety Relay Module |
| Safety Category | SIL 3, PL e |
| Channels | 2 (dual-channel monitoring) |
| Contact Configuration | 2 NO (safety outputs) |
| Contact Rating | 6 A @ 250 VAC/24 VDC |
| Max Switching Voltage | 250 VAC/DC |
| Response Time | ≤20 ms |
| Reset Modes | Manual/Auto (selectable) |
| Operating Voltage | 24 VDC/110-240 VAC (universal) |
| Operating Temperature | -25°C to +55°C |
| Enclosure Rating | IP20 |
| Certifications | UL 508, TÜV, CE, cULus |
| Dimensions | 22.5 x 99 x 114 mm |
Main Features and Advantages
Fault-Tolerant Architecture: Cross-monitoring circuitry detects contact welding and short circuits between channels within 20 ms, triggering immediate shutdown. Force-guided contacts prevent simultaneous closure of NO/NC contacts under fault conditions.
Advanced Diagnostics: Dual-color LEDs (green/red) provide instant visual feedback for channel status, faults, and power. Integrated diagnostic output (1 NO) signals relay health to PLCs for predictive maintenance.
Flexible Integration: Universal voltage support (24VDC to 240VAC) eliminates separate power supplies. Selectable reset modes accommodate diverse safety strategies – manual reset for critical processes, auto-reset for non-hazardous zones.
Space Optimization: Slim 22.5mm width saves panel space. Top/bottom wiring terminals simplify installation in crowded enclosures. DIN-rail clip allows tool-less mounting.
Application Field
The Carlo Gavazzi CSR70 is essential for machinery safety across industries:
Automotive Manufacturing: Emergency stop monitoring for robotic assembly lines (PL e compliance)
Packaging Machinery: Safety interlock control for filler/capper access doors
Material Handling: Light curtain integration on palletizers and conveyor transfers
Plastics Injection Molding: Two-hand control system enforcement
Wood Processing: Monitoring safety mats around saws and planers
In food/beverage plants, its sealed terminals resist washdown corrosion while ensuring hygienic zone safety.
CSP CSR70
Related Products
CSR50: Basic safety relay (SIL 2/PL d) for non-critical applications
CSR120: Expanded version with 4 safety outputs
CA18CAP: Magnetic safety sensor for door position feedback
RB31: Emergency stop push button
SRB-E301: Safety light curtain for CSR70 integration
DIA11: Diagnostic interface module
VSG: Safety gate switch for guard monitoring
Installation and Maintenance
Pre-installation preparation: Verify voltage compatibility (auto-sensing). Ensure dual-channel devices (e.g., E-stops) are wired per EN 60204-1. Separate safety/non-safety wiring by ≥50 mm. Select reset mode via jumper before power-up.
Maintenance recommendations: Test monthly using simulated faults (e.g., short input channels). Inspect terminal tightness annually (0.6 N·m torque). Replace if diagnostic LEDs indicate internal fault or after 1 million cycles. Never bypass safety circuits during troubleshooting.
