

The Schneider Electric Acti9 iTLi A9C30115 impulse relay is a 16 A pulse relay designed for electrical circuit control, especially lighting installations operated from one or more pushbuttons. It features a 2-pole configuration with 1 normally open contact (NO) and 1 normally closed contact (NC), and a control coil that can be supplied with 24 V AC 50/60 Hz or 12 V DC.
This impulse relay allows a load to be switched on and off using short electrical pulses, making it easy to control the same circuit from different points. It belongs to Schneider Electric’s modular Acti9 iTL range and is designed for DIN rail mounting, taking up only 18 mm of width inside the electrical panel.
The Schneider Electric A9C30115 is especially suitable for installations where a circuit is to be controlled by pushbuttons. Each pulse sent to the coil causes the contacts to change state, allowing the load supply to be alternated without the need for conventional two-way switching between all control points.
This solution is particularly practical in corridors, stairways, common areas, residential buildings, commercial premises, and other installations where the same lighting circuit must be operated from several locations.
The A9C30115 reference corresponds specifically to an iTLi changeover impulse relay. Its configuration includes:
The combination of one NO contact and one NC contact provides two complementary states at the same time, expanding control possibilities compared with a conventional impulse relay equipped only with a normally open contact.
The relay control circuit accepts a voltage of 24 V AC at 50/60 Hz or 12 V DC. This feature makes it possible to use extra-low-voltage control circuits when the installation design requires it.
The separation between the control circuit and the power circuit makes it easy to control a mains load using pushbuttons supplied with the voltage corresponding to the coil.
The Acti9 iTLi uses a pulse control signal. Schneider Electric specifies an admissible pulse duration of between 50 ms and 1 second.
The device is designed for a maximum frequency of:
This operation is suitable for lighting and control applications where commands are issued by momentary presses rather than by a continuously maintained control signal.
The A9C30115 allows remote control via pushbuttons and manual control from the device itself. It also includes local ON/OFF status indication, making it easy to visually check the circuit status directly from the electrical panel.
Schneider Electric also provides coil disconnection and different expansion options through compatible auxiliaries from the Acti9 iTL family.
The impulse relay supports control via illuminated pushbuttons with a current of up to 3 mA. This feature makes it suitable for installations where control points include lighting so they can be easily located.
The number and characteristics of the installed pushbuttons must always comply with the electrical limits established by Schneider Electric for the control circuit.
The power circuit of the iTLi A9C30115 has a rated current of 16 A and a rated operational voltage of 250 V AC at 50/60 Hz.
Schneider Electric positions the iTL range for controlling different types of lighting. Load sizing must take into account not only the relay’s rated current, but also the lighting technology and any inrush currents that may occur.
The A9C30115 is part of the Schneider Electric Acti9 range, which makes it easy to integrate alongside miniature circuit breakers, residual current devices, and other modular devices inside the electrical panel.
Its accessory system allows different signaling, control, and automation functions to be added through compatible modules installed alongside the relay.
The relay is designed for fixed DIN rail mounting and occupies only 18 mm of width, equivalent to a standard module.
Its compact dimensions make it suitable for electrical panels where available space is limited:
Schneider Electric specifies a high electrical life for the A9C30115, with different values depending on the utilization category:
This durability makes it suitable for installations where the circuit must be operated frequently over a long period of time.
The relay uses tunnel terminals to ensure secure conductor connection.
Connections must be made in compliance with the conductor cross-sections, preparation, and installation conditions specified by Schneider Electric.
The Schneider Electric A9C30115 has an IP20 protection rating under the conditions indicated by the manufacturer. When correctly installed inside a suitable enclosure, Schneider Electric specifies up to IP40 for the assembly.
As a modular device, it must be installed in an appropriate electrical panel that provides the protection level required for the environment.
The relay is designed to operate across a wide range of environmental conditions:
One of the main advantages of an impulse relay is that it simplifies installations with multiple control points. The pushbuttons are connected to the control circuit and send a pulse to the coil, so different actuation points can be added without resorting to complex combinations of switches and crossover switches.
For this reason, the Acti9 iTLi A9C30115 is especially practical for stairway lighting, corridors, common areas, and other applications where several pushbuttons need to operate the same circuit.
The Schneider Electric A9C30115 combines a 16 A rated current with a 1 NO + 1 NC changeover contact, a 24 V AC or 12 V DC coil, and pulse-based control. Its single-module format, DIN rail mounting, and the possibility of manual and remote operation make it easy to integrate into residential and commercial electrical panels.
Important: this device performs switching and control functions and does not replace the miniature circuit breaker or residual current protection devices required by the circuit. Electrical protection must be sized independently according to the load, conductor cross-section, and installation characteristics.