700-F400A1 Allen-Bradley

700-F400A1 Allen-Bradley I / O module

Product  Description：

The 700-F400A1 is part of the Allen-Bradley Bulletin 700-F series. It features a 4-pole configuration where all four poles are Normally Open (4 NO). This relay is engineered for long mechanical and electrical life, providing a dependable interface between low-power control circuits and higher-power loads. The "A1" suffix in the part number indicates the specific coil voltage rating required to energize the relay.

Product Parameters

• Contact Configuration: 4 NO (Normally Open)

• Coil Voltage: $120 \text{ VAC}$ at $50/60 \text{ Hz}$ (standard North American control voltage)

• Contact Rating: $10 \text{ A}$ (Thermal current $I_{th}$)

• Standard Compliance: IEC/EN 60947-1, 60947-5-1, and UL 508

• Mounting Style: Designed for $35 \text{ mm}$ DIN rail mounting or traditional screw mounting

• Terminal Type: Conventional screw terminals for secure wire termination

• Operating Temperature: Typically rated for $-20^\circ\text{C}$ to $+60^\circ\text{C}$

• Degree of Protection: IP20 finger-safe terminals to prevent accidental contact

Product Advantages

• Space Efficiency: The miniature design allows for high-density mounting on DIN rails, which is critical for modern, compact control panels where space is at a premium.

• Versatility: With its $10 \text{ A}$ rating, it can handle a wide variety of loads, from small solenoids and pilot lights to larger contactor coils.

• Reliability: Gold-plated bifurcated contact options are available in this series for low-energy applications, though this standard model is built for robust general-purpose switching.

• Modular Accessories: The 700-F series supports a range of snap-on accessories, including auxiliary contact blocks, timing modules, and surge suppressors, allowing for easy customization.

• High-Speed Operation: Fast response times for both pick-up and drop-out make it suitable for applications requiring precise timing and sequencing.

Important Considerations and Precautions

• Coil Voltage Matching: Ensure the supply voltage matches the $120 \text{ VAC}$ rating exactly. Applying $24 \text{ VDC}$ or $240 \text{ VAC}$ will lead to failure to operate or permanent coil burnout.

• Load Limits: Do not exceed the $10 \text{ A}$ continuous current rating. For highly inductive loads (like large motors), consider the AC-15 or DC-13 utilization categories to ensure the contacts do not weld or pit prematurely.

• Surge Protection: When switching inductive loads, it is highly recommended to install a surge suppressor (RC link or varistor) across the coil to protect sensitive PLC outputs from voltage spikes.

• Mounting Orientation: While it can be mounted in multiple positions, ensure there is adequate ventilation around the relay to prevent heat buildup during continuous duty.

• Wiring Integrity: Periodically check screw terminal tightness, especially in environments subject to high vibration, to prevent arcing and localized heating.

Product Applications

The 700-F400A1 is a "workhorse" relay used across various industrial sectors for logic control and load isolation.

• PLC Interface: Acting as an interposing relay to allow low-power PLC outputs to control larger contactors or field devices that require more current than the PLC card can provide.

• Safety Logic: Used in non-safety-critical interlocking circuits to ensure specific machine conditions are met before allowing further operations.

• Lighting and Heating Control: Managing small lighting banks or resistive heating elements in industrial climate control systems.

• Motor Control Centers (MCC): Providing auxiliary logic signals for motor starters and sequence control in automated assembly lines.

• Pump and Valve Sequencing: Managing the timing and operational order of fluid control systems in water treatment or manufacturing processes.

The structure and details of the product：

Our services：

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Warranty: one year

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Our main products include DCS control system spare parts, PLC system spare parts, and robot system spare parts. Our advantageous brands include Allen Bradley, Bently Nevada, ABB, HIMA, Reliance, Bender, National Instruments, Emerson Ovation, Honeywell, Siemens, Allen Bradley, ICS Triplex, FOXBORO, Schneider, GE Fanuc, Motorola, HIMA, Prosoft, and other imported industrial components. Our main products serve a wide range of electronic, metallurgical, chemical, and power plants Industries such as steel mills, rubber, cement, machinery and equipment, and construction.