The Edwards EOL-4K7L End-of-Line (EOL) supervision resistor is a critical component in fire alarm circuit monitoring systems, designed to ensure continuous electrical supervision of initiating device circuits and notification appliance circuits. Engineered for precision and reliability, this resistor plays a fundamental role in maintaining the integrity of commercial fire alarm detection and notification networks.
Primarily utilized in circuit supervision configurations where powered door strike locks or other electrical devices require consistent monitoring, the EOL-4K7L provides a stable resistance path that allows fire alarm control panels to detect circuit integrity. By maintaining a consistent resistance value, the resistor enables the panel to distinguish between normal circuit conditions and potential fault or tamper scenarios.
Fire alarm professionals rely on this supervision resistor to meet strict National Fire Protection Association (NFPA) 72 requirements for circuit monitoring in commercial, institutional, and industrial fire detection and notification systems. Compatible with a wide range of Edwards addressable and conventional fire alarm control panels, the EOL-4K7L represents a critical component in comprehensive life safety infrastructure.
Key Features
- Precision-wound resistor designed for continuous circuit supervision in fire alarm systems
- Compatible with Edwards conventional and addressable fire alarm control panels
- Meets NFPA 72 requirements for initiating device circuit and notification appliance circuit monitoring
- Robust construction ensures reliable performance in commercial and industrial environments
- Suitable for use with door strike locks, electrical access control systems, and other supervised circuits
- UL Listed for fire alarm circuit applications
Specifications
- Resistance Value: 4.7 kΩ (nominal)
- Tolerance: ±5%
- Operating Temperature Range: 32°F to 120°F (0°C to 49°C)
- Maximum Power Dissipation: 1/4 Watt
Typical Installation Contexts
- Commercial office buildings
- Educational facilities
- Healthcare complexes
- Industrial manufacturing plants
- Government and municipal buildings
- High-rise residential structures
Professional fire alarm installers and system integrators should verify complete system compatibility and adhere to local building and fire codes during installation. Proper circuit design and resistor placement are essential for maintaining comprehensive life safety system performance.
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | 0.1 lbs |
|---|---|
| Dimensions | 1 × 1 × 1 in |
| Condition | New |
| Manufacturers | Edwards |
| Part Type | Sensor |
