ОПИСАНИЕ ПРОДУКТА
ALLEN BRADLEY 141A-TR4 - Thermal Overload Relay
The ALLEN BRADLEY 141A-TR4 is a bimetallic thermal overload relay designed for robust motor protection against sustained overcurrent conditions. This device integrates into industrial motor control circuits, providing essential safeguarding for three-phase AC motors by monitoring current draw and initiating a trip sequence upon detection of an overload, thereby preventing motor damage and system downtime. It is commonly deployed in motor control centers, industrial machinery, and HVAC systems requiring reliable thermal protection.
Technical Specifications:
- SERIES/FAMILY: 141A Series
- COMPONENT TYPE: Thermal Overload Relay
- ELECTRICAL SPECS:
- ADJUSTABLE CURRENT RANGE: Specific to TR4 designation (typically within 0.1A to 60A range for 141A series)
- MAXIMUM OPERATIONAL VOLTAGE: 600VAC
- NUMBER OF POLES: 3-Phase
- TRIP CLASS: Class 10 or Class 20 (typical for 141A series, specific to model)
- MECHANICAL/PHYSICAL:
- FORM FACTOR: Compact, direct-mount or panel-mount design
- RESET TYPE: Manual or Automatic selectable (typical for series)
- INTERFACE/CONTROL:
- AUXILIARY CONTACTS: 1 Normally Open (NO) and 1 Normally Closed (NC) for control circuit integration and status indication
- TRIP INDICATION: Visual trip indicator
- ENVIRONMENTAL/MOUNTING:
- MOUNTING STYLE: Direct mount to contactor or DIN rail/panel mount
- OPERATING TEMPERATURE: -20°C to +60°C (typical)
- IP RATING: IP20 (typical for open panel devices)
- COMPATIBILITY/APPLICATION:
- TARGET SYSTEMS: Industrial motor control circuits, motor starters, control panels
- SPECIFIC MACHINE TYPES: Pumps, fans, conveyors, compressors, and general industrial machinery requiring motor overload protection
