Impulse Relay ITL 1P 16A 230V AC 110V DC

The Schneider Electric Acti9 iTL A9C30811 impulse relay is a modular impulse control device designed primarily for controlling lighting circuits from one or more pushbuttons. It features 1 pole with 1 normally open contact, rated current 16 A, and a control coil compatible with 230-240 V AC at 50/60 Hz or 110 V DC, offering a compact solution for residential, commercial, and tertiary electrical panels.

Its bistable operation means that each pulse applied to the coil changes the contact state: one pulse closes the circuit and the next opens it again. In this way, the Acti9 iTL makes it possible to control the same load from multiple points using pushbuttons, simplifying wiring compared with conventional two-way and intermediate switching systems.

1-pole, 16 A modular impulse relay

Reference A9C30811 belongs to Schneider Electric's Acti9 iTL range and features a normally open main contact capable of operating at a rated current of 16 A.

• Range: Acti9.
• Series: iTL.
• Reference: A9C30811.
• Product type: impulse relay or pulse relay.
• Number of poles: 1P.
• Contact composition: 1 NO.
• Rated current: 16 A.
• Network type: AC.

230-240 V AC or 110 V DC control coil

The control circuit supports two supply options, making it easy to integrate into different electrical schemes:

• AC control voltage: 230-240 V AC.
• Control frequency: 50/60 Hz.
• DC control voltage: 110 V DC.

This dual compatibility allows the same impulse relay to be used both in control circuits powered directly from mains voltage and in installations with a 110 V DC control supply.

Pulse-operated function

The Schneider Electric A9C30811 operates using a pulse control signal. Each pulse received by the coil mechanically switches the stable contact state, keeping its position even after the control signal disappears.

The permitted duration of each control command is between:

• Minimum pulse duration: 50 ms.
• Maximum pulse duration: 1 second.

This principle makes it possible to control a circuit using numerous pushbuttons connected in parallel without the need to keep the coil permanently energized.

Lighting control from multiple points

The Acti9 iTL A9C30811 is especially suitable for lighting circuits controlled from several points. It can be used, for example, in stairways, corridors, common areas, large rooms, shops, offices, tertiary buildings, and other installations where it is convenient to have several pushbuttons for the same load.

Schneider Electric indicates that the product is designed to integrate with the Acti9 range and to be used with different lighting technologies, always respecting the switching capacity corresponding to each type of load.

Manual and remote control

In addition to electrical pulse control, the impulse relay includes front manual control. This makes it possible to directly change the contact state during commissioning, testing, or maintenance operations.

The unit also incorporates a function to disconnect remote control via selector, especially useful during maintenance interventions to prevent unwanted actuation from the pushbuttons connected to the circuit.

Local status indication

The front of the A9C30811 provides mechanical ON/OFF indication, allowing the contact state to be visually checked directly from the electrical panel.

This feature facilitates troubleshooting, commissioning, and maintenance tasks.

Operating voltage up to 250 V AC

The main circuit of the impulse relay is designed for a rated operating voltage of up to 250 V AC at 50/60 Hz.

• Rated operational voltage Ue: 250 V AC.
• Frequency: 50/60 Hz.
• Rated insulation voltage Ui: 440 V AC.
• Rated impulse withstand voltage Uimp: 6 kV.
• Overvoltage category: IV.

High electrical durability

The Schneider Electric Acti9 iTL is designed for a high number of switching operations, offering a long service life in installations where the circuit is operated frequently.

• Electrical durability in AC-21: up to 200,000 cycles.
• Electrical durability in AC-22: up to 100,000 cycles.
• Maximum instantaneous switching frequency: 5 operations per minute.
• Maximum daily frequency: 100 operations per day.

Compatible with illuminated pushbuttons

The control circuit supports the use of illuminated pushbuttons with a cumulative current of up to 3 mA, making it easier to install signaled controls in corridors, staircases, or low-light areas.

The number and characteristics of the pushbuttons must be sized according to the total current allowed by the control circuit.

DIN rail mounting

The A9C30811 is designed for fixed installation on a DIN rail, allowing it to be easily integrated alongside miniature circuit breakers, residual current devices, and other modular Acti9 components inside the electrical panel.

• Mounting: fixed.
• Support: DIN rail.
• Width: 18 mm.
• Modular equivalent: 2 x 9 mm modules.
• Height: 84 mm.
• Depth: 60 mm.

Its width of only 18 mm allows the impulse relay function to be incorporated while occupying a single standard module in the panel.

Connection via tunnel terminals

The impulse relay uses screw-type tunnel terminals for both the power circuit and the control circuit.

In the power circuit it accepts conductors of approximately:

• Rigid conductors: 1.5 to 4 mm².
• Flexible conductors: 1.5 to 4 mm².
• Strip length: 11 mm.
• Tightening torque: 1 Nm.

For the control circuit it accepts conductors up to 4 mm² depending on the type of cable and termination used.

Compatible with Acti9 auxiliaries

The modular architecture of the iTL allows its functions to be expanded with compatible accessories and auxiliaries from the Acti9 family. Schneider Electric provides compatibility with different modules for signaling, timing, centralized control, and contact extension.

Compatible accessory families include:

• Acti9 iETL.
• Acti9 iATL.
• Acti9 iATLc.
• Acti9 iATLm.
• Acti9 iATLs.
• Acti9 iATLz.
• Acti9 iATEt.

The exact compatibility and required configuration should be checked according to the auxiliary function to be added.

IP20 protection

The device offers an IP20 protection rating under normal installation conditions. When correctly installed inside a suitable enclosure, it can achieve a protection rating of up to IP40.

• Device protection rating: IP20.
• Protection inside enclosure: up to IP40.
• Pollution degree: 3.

Environmental conditions

The impulse relay is designed to operate within a wide temperature range in indoor installations.

• Operating ambient temperature: -20 °C to +50 °C.
• Storage temperature: -40 °C to +70 °C.
• Relative humidity: up to 95% at 55 °C.

Applicable standards

The Schneider Electric A9C30811 complies with the applicable standards for switches and impulse relays used in electrical installations:

• IEC/EN 60669-1.
• IEC/EN 60669-2-2.

Technical features of the Schneider Electric A9C30811

• Brand: Schneider Electric.
• Range: Acti9.
• Series: iTL.
• Reference: A9C30811.
• Type: impulse relay / pulse relay.
• Main application: lighting control.
• Number of poles: 1P.
• Contact: 1 NO.
• Rated current: 16 A.
• Operating voltage: up to 250 V AC.
• AC control voltage: 230-240 V.
• DC control voltage: 110 V.
• Frequency: 50/60 Hz.
• Control signal type: pulse.
• Pulse duration: 50 ms to 1 s.
• Control: manual and remote.
• Status indication: ON/OFF.
• Maximum frequency: 5 operations/minute.
• Maximum daily frequency: 100 operations/day.
• AC-21 durability: 200,000 cycles.
• AC-22 durability: 100,000 cycles.
• Insulation voltage Ui: 440 V.
• Rated impulse withstand voltage Uimp: 6 kV.
• Mounting: DIN rail.
• Width: 18 mm.
• Height: 84 mm.
• Depth: 60 mm.
• Protection rating: IP20.
• Protection in enclosure: up to IP40.
• Operating temperature: -20 °C to +50 °C.
• EAN: 3606480088957.

Simple lighting control from multiple pushbuttons

The Schneider Electric Acti9 iTL A9C30811 is a compact solution for installations where the same lighting needs to be switched on and off from several points. Its pulse-based operation avoids keeping the coil permanently energized and greatly simplifies wiring in installations with multiple control stations.

With 16 A rated current, a 230-240 V AC or 110 V DC coil, manual and remote control, long electrical durability, and DIN mounting with only 18 mm width, it is especially suitable for electrical panels in homes, offices, shops, residential buildings, and other tertiary installations.