JQX-80F/1Z High-Power 12V DC 100A Electromagnetic Relay

The JQX-80F/1Z, also commonly identified as LJQX-80F/1Z, is a heavy-duty electromagnetic power relay designed for switching high-current electrical loads in industrial automation, machinery, power-control panels, electrical equipment, and other high-power control applications.

This version features a 12V DC control coil and a 1Z changeover contact configuration. The LJQX-80F series is specified for resistive contact loads up to 100A at 250VAC or 28VDC, making it suitable for applications where a relatively low-power control circuit must switch a much higher-current load.

12V DC Control Coil

The relay can be operated from a 12V DC control circuit, making it useful with compatible PLC outputs, industrial control circuits, battery-powered control systems, automation controllers, and other 12V control equipment.

High-Current 100A Switching

The LJQX-80F series is designed for high-current switching and is rated for a resistive contact load of up to 100A at 28VDC or 250VAC. Silver-alloy contacts are used to provide reliable electrical switching performance.

1Z Changeover Contact

The 1Z configuration is a single changeover contact arrangement, commonly described as SPDT or 1 Form C. It provides normally-open and normally-closed switching functions through one common contact, allowing greater flexibility in industrial control circuits.

Electrical Isolation

The electromagnetic relay provides electrical isolation between the low-voltage control coil and the switched load circuit. The LJQX-80F specification provides dielectric withstand capability of at least 2500VAC between the coil and contacts.

Screw-Terminal Heavy-Duty Design

The relay uses a heavy-duty enclosure and screw-terminal connection arrangement designed for secure wiring in industrial electrical installations and high-current applications.

Typical Applications

• Industrial Automation Equipment
• Electrical Control Panels
• High-Current Load Switching
• Motor Control Circuits
• Power Distribution Equipment
• Machinery Control Systems
• Battery and DC Power Systems
• Heating and Electrical Equipment
• Remote Control Systems
• Industrial Electrical Equipment

Key Specifications

• Model: JQX-80F/1Z / LJQX-80F/1Z
• Product Type: High-Power Electromagnetic Relay
• Coil Voltage: 12V DC
• Contact Form: 1Z / SPDT / 1 Form C
• Contact Material: Silver Alloy
• Resistive Contact Capacity: Up to 100A at 28VDC / 250VAC
• Maximum Switching Voltage: 28VDC / 250VAC
• Contact Resistance: ≤100mΩ
• Insulation Resistance: ≥1000MΩ at 500VDC
• Dielectric Strength – Open Contacts: ≥1500VAC
• Dielectric Strength – Coil to Contacts: ≥2500VAC
• Coil Power: ≤4.8W DC
• Electrical Life: Approx. 100,000 Operations
• Mechanical Life: Approx. 1,000,000 Operations
• Operating Temperature: Approx. -25°C to +55°C
• Terminal Type: Screw Terminal
• Approximate Dimensions: 80.5 × 62 × 71.5mm
• Approximate Weight: 275g

Model Code Explanation

• JQX / LJQX: Electromagnetic power relay series
• 80F: High-current relay model series
• 1Z: One changeover contact (SPDT / 1 Form C)
• 12VDC: 12-volt DC control coil
• 100A: High-current resistive-load rating for the LJQX-80F series