Description
The Overload Relay is a critical motor protection component specifically designed for Virtus Equipment and ZERMA America material processing systems. This industrial-grade thermal overload relay provides reliable motor protection by continuously monitoring current draw and disconnecting power during sustained overload conditions, ensuring motor longevity and preventing costly equipment damage in demanding industrial applications.
Technical Specifications:
SKU: 80031208
Type: Thermal overload relay
Protection Method: Bimetallic thermal overload sensing with current monitoring
Current Setting: Adjustable range (specific range varies by model - specify when ordering)
Trip Class: Class 10 for standard motor applications
Reset Options: Manual or automatic reset selection
Phase Protection: Three-phase motor protection with phase failure detection
Mounting: DIN rail installation (35mm rail)
Auxiliary Contacts: Normally open and/or normally closed contacts available for signaling
Operating Environment: Industrial control panel applications
Temperature Compensation: Ambient temperature compensated trip characteristics
Standards Compliance: IEC 60947-4-1, UL 508
Key Features:
Thermal Overload Protection: Monitors motor current continuously and trips during sustained overload conditions before motor damage occurs
Adjustable Trip Setting: Rotary adjustment dial allows precise calibration to motor full-load current rating for optimal protection
Wide Current Range: Adjustable settings accommodate various motor sizes within specified current range
Class 10 Trip Characteristics: Standard trip profile suitable for most motor applications and starting conditions
Manual or Automatic Reset: Selectable reset mode allows customization for specific operational requirements
Trip Indication: Clear mechanical or visual indication shows trip status for quick fault diagnosis and troubleshooting
Auxiliary Contacts: Additional switching contacts provide alarm signaling and control circuit monitoring capability
Phase Failure Protection: Detects loss of phase condition preventing motor damage from single-phasing
Temperature Compensation: Built-in ambient temperature compensation maintains accurate protection across environmental variations
DIN Rail Mounting: Standard mounting configuration simplifies installation in control panels
Compact Design: Space-efficient footprint conserves valuable panel space while providing comprehensive protection
Applications: Critical motor protection component for granulators, shredders, and material processing equipment used in plastic recycling, manufacturing scrap recovery, and waste processing operations. Essential for protecting motors from damage caused by mechanical overload, bearing failures, locked rotor conditions, single-phasing, voltage imbalance, and inadequate cooling. Ideal for recycling facilities, injection molding plants, extrusion operations, blow molding facilities, and manufacturing environments where motor reliability is critical for production continuity and minimizing downtime. Perfect for applications including main drive motor protection, feed system motors, conveyor drives, hydraulic pump motors, cooling fan motors, and auxiliary equipment motors requiring thermal overload protection with adjustable settings. Suitable for use with motor contactors and starters in control circuits requiring thermal overload protection with alarm contacts for remote monitoring and integration with PLCs or SCADA systems. Works in conjunction with circuit breakers to provide comprehensive motor circuit protection against both sustained overload and short circuit conditions in automated material processing equipment.
