ALFG2PF121 Power Relay: High-Capacity Industrial Automation Solution
ALFG2PF121 Power Relay: High-Capacity Industrial Automation Solution
Professional-grade power relay for demanding industrial control applications
Product Overview
The ALFG2PF121 is a high-capacity power relay manufactured by Panasonic Industrial Devices, designed specifically for industrial automation and control applications. This compact yet powerful relay delivers exceptional performance in demanding environments, making it an ideal choice for PLC systems, motor controls, and heavy-duty switching applications.
Technical Specifications
| Parameter | Specification | Value |
|---|---|---|
| Contact Rating | Maximum Switching Current | 33 A (AC) |
| Switching Voltage | Maximum AC Voltage | 250 V AC |
| Max Switching Power | Resistive Load | 8,250 VA |
| Coil Voltage | Rated DC Voltage | 12 VDC |
| Coil Current | Operating Current | 117 mA |
| Contact Form | Configuration | 1 Form A (SPST-NO) |
| Contact Material | Contact Composition | AgSnO2 type |
| Mechanical Life | Minimum Operations | 500,000 operations |
| Dimensions | L × W × H | 30.1 × 15.7 × 23.3 mm |
| Mounting Style | Installation Method | Through Hole |
Key Features & Benefits
- High Capacity Performance: Capable of handling 33A current at 250V AC in a compact form factor
- Reliable Operation: Mechanical life of 500,000+ operations ensures long-term reliability
- Compact Design: Space-saving dimensions (30.1 × 15.7 × 23.3 mm) ideal for dense control panels
- Advanced Contact Material: AgSnO2 contacts provide excellent arc resistance and durability
- Industrial Grade: Designed to withstand harsh industrial environments and vibration
- Easy Integration: Through-hole mounting with solder pin terminations for secure connections
Applications in Industrial Automation
The ALFG2PF121 power relay is specifically engineered for integration with PLC systems and industrial control applications:
- PLC Output Modules: Interface between PLC digital outputs and high-power loads
- Motor Control Circuits: Control of AC motors, pumps, and compressors
- Heating Systems: Switching of resistive heating elements and industrial ovens
- Lighting Control: Industrial lighting circuits and high-power lighting systems
- Power Distribution: Circuit isolation and power switching in control panels
- Safety Circuits: Emergency stop circuits and safety interlock systems
Installation & Wiring Guidelines
Proper installation is crucial for optimal performance and safety:
- Mounting: Secure through-hole mounting on PCBs or relay sockets
- Wiring: Use appropriate wire gauges for the 33A current rating
- Termination: Solder pin connections require proper soldering techniques
- Clearance: Maintain adequate clearance for heat dissipation
- Protection: Consider using suppression circuits for inductive loads
Frequently Asked Questions (FAQ)
The ALFG2PF121 can handle a maximum switching voltage of 250V AC, making it suitable for standard industrial power applications.
This relay features a 1 Form A (SPST-NO) configuration, meaning it has one normally open contact that closes when energized.
While primarily designed for AC applications, the relay can handle DC loads, but the current rating may be lower. Consult the datasheet for specific DC ratings.
The ALFG2PF121 has a minimum mechanical life of 500,000 operations, ensuring reliable long-term performance in industrial applications.
Yes, the ALFG2PF121 is commonly used as an interposing relay between PLC outputs and high-power loads, providing isolation and current amplification.
Trust & Quality Metrics
External References & Documentation
For complete technical specifications and detailed application notes, refer to the following resources:
Industry Standards & Compliance
The ALFG2PF121 power relay complies with relevant industrial standards and is manufactured under Panasonic's stringent quality control processes. It is suitable for use in industrial automation systems that require reliable, high-capacity switching capabilities.
