Description
The SNA 4043K Control Relay is a certified safety monitoring device specifically designed for Virtus Equipment and ZERMA America material processing systems. This industrial-grade safety relay module provides reliable monitoring of emergency stop circuits, safety guards, light curtains, and other safety devices with redundant dual-channel architecture, ensuring operator protection and compliance with international machinery safety standards in demanding industrial applications.
Technical Specifications:
SKU: 80031281
Part Number: SNA 4043K
Type: Safety relay module for emergency stop and guard monitoring
Safety Rating: Category 3 or 4 per EN ISO 13849-1, SIL 2 or 3 per IEC 61508
Safety Inputs: Dual-channel monitoring (2 safety inputs typical)
Safety Outputs: Forced-guided relay contacts (typically 2 or 4 normally open safety outputs)
Auxiliary Outputs: Additional contacts for signaling and control (configuration varies)
Reset Type: Automatic or manual reset selectable
Control Voltage: Multiple voltage options AC or DC (specify when ordering)
Mounting: DIN rail installation (35mm rail)
Status Indication: LED indicators for inputs, outputs, power, and fault diagnostics
Operating Environment: Industrial safety control panel applications
Standards Compliance: EN ISO 13849-1, IEC 61508, IEC 60204-1, EN 60947-5-1
Key Features:
Certified Safety Function: Meets international safety standards including EN ISO 13849-1 (Category 3/4) and IEC 61508 (SIL 2/3)
Dual-Channel Monitoring: Redundant safety input monitoring detects faults, cross-circuit conditions, and discrepancies in safety circuits
Multiple Safety Inputs: Monitors emergency stop buttons, safety interlocks, light curtains, safety mats, and two-hand controls
Forced-Guided Safety Outputs: Mechanically linked output relay contacts ensure reliable safety function execution
Automatic/Manual Reset Options: Selectable reset mode accommodates different safety application requirements
Diagnostic LED Indicators: Visual status display shows input status, output status, and fault conditions for troubleshooting
Short Circuit Detection: Monitors output circuits for short circuit faults ensuring safety system integrity
Cross-Circuit Detection: Identifies wiring faults between safety circuits preventing dangerous failures
Auxiliary Contacts: Additional outputs for alarm signaling, status indication, and control circuit integration
DIN Rail Mounting: Standard mounting configuration simplifies installation in safety control panels
Compact Design: Space-efficient footprint suitable for safety circuit applications requiring minimal panel space
Applications: Critical safety component for granulators, shredders, and material processing equipment used in plastic recycling, manufacturing scrap recovery, and waste processing operations. Essential for implementing certified safety circuits monitoring emergency stop buttons, safety interlocks on access doors and guards, light curtains protecting operator access zones, safety mats on operator platforms, two-hand controls, and other safety devices. Ideal for recycling facilities, injection molding plants, extrusion operations, blow molding facilities, and manufacturing environments requiring compliance with machinery safety directives (2006/42/EC), OSHA regulations, and ANSI B11 standards. Perfect for applications requiring Category 3 or Category 4 safety circuits with redundant monitoring including main equipment emergency stops, perimeter guarding systems, feed system safety interlocks, maintenance access control with trapped key systems, and multi-zone operator protection systems. Suitable for integration with safety PLCs and control systems where certified safety relays provide reliable monitoring of multiple safety devices with comprehensive fault detection, ensuring equipment stops safely during emergency situations, preventing unauthorized access to hazardous areas during equipment operation, and meeting stringent machinery safety requirements for material processing equipment.
