Auxiliary contact Schneider Electric LC1K09004P7, AC contact rating 230 V AC, multicolour

Schneider Electric LC1K09004P7 is a 4-pole power contactor with a 230 V AC coil and a rated operational current of 20 A for AC-1 duty. It is designed for mains and motor switching in control panels and automation systems, offering a compact mechanical design and compatibility with standard panel and DIN-rail mounting for residential and industrial installations.

Advantages

The device combines reliable switching performance at up to 20 A (AC-1) with a compact form factor suitable for confined control cabinets. Its four-pole arrangement allows simultaneous switching of multiple conductors or three-phase circuits with neutral, simplifying wiring and reducing the number of separate devices. Built to Schneider Electric production and test standards, the contactor provides repeatable operation and long service life when used within its rated conditions.

Suitable for

• Switching lighting circuits and resistive loads in residential or commercial installations
• Controlling heating elements and hot-water systems where AC-1 switching applies
• Integration into motor control panels for non-inductive or slightly inductive loads
• Centralized control of multi-phase supply lines or loads requiring simultaneous disconnection

When it may not be suitable

This contactor is specified for AC-1 duty at 20 A and is intended primarily for resistive and non-severe inductive loads. It is not designed for heavy motor starting or frequent high inrush applications that require contactors with AC-3 or AC-4 ratings and higher making/breaking capacities. For installations with very frequent switching, high ambient temperatures, or aggressive environments, select a device with ratings appropriate to those conditions.

Key specifications

• Poles: 4
• Rated operational current: 20 A (AC-1)
• Coil voltage: 230 V AC
• Duty type: AC-1 (resistive / non-severe inductive loads)
• Mounting: panel or DIN-rail compatible
• Typical use: mains and motor switching in control panels and automation systems

How to use

Install the contactor on a suitable panel or DIN-rail following local electrical codes and the manufacturer's installation guidance. Connect the main supply conductors to the four power poles and wire the 230 V AC control circuit to the coil terminals, observing correct phase and neutral connections. Fit appropriate protective devices such as fuses or circuit breakers sized for the expected load and short-circuit conditions. Test operation by energizing the coil and confirming contact closure before placing the equipment into normal service.

What to consider before purchase

• Verify that a 20 A AC-1 rating is appropriate for the type of load (resistive or low-inductance) and expected current
• Confirm that a 230 V AC coil voltage matches your control circuitry
• Ensure the 4-pole configuration and physical dimensions fit your panel layout and mounting method
• Assess whether an AC-3/AC-4 rated contactor is required for heavy motor starts or frequent switching

Usage recommendations

Use suitable overcurrent protection and follow Schneider Electric installation practices. In systems with frequent switching or motor starting, schedule periodic inspection of contacts and connections and consider a contactor with a higher switching class if high inrush currents are expected.