Bistable relay, 16A, 4 changeover contacts PB404 412416

Bistable relay for lighting and circuit control

Bistable relay PB404 is a reliable solution for switching on and off lighting circuits, as well as for impulse and manual control. Thanks to its bistable design, switching the state requires a short control pulse, allowing for energy-saving solutions in home and industrial automation systems. This relay is particularly useful in applications where maintaining the switch state without continuous power consumption is important.

This model, with a rated current of 16A and four changeover contacts, provides versatility in applications requiring a larger number of circuits controlled by a single signal. Mounting on a DIN TH35 rail simplifies installation and integration with existing electrical infrastructure. Designed to operate in ambient temperature and storage in a wide range of temperatures (-25...+70°C), it guarantees stable operation even in harsh conditions.

Characteristics and application

The PB404 relay is characterized by a control voltage of AC 210-250V and a frequency of 50-60Hz, making it compatible with most standard electrical installations. Its maximum switching capacity for fluorescent lamps (DUO compensation) is 1680 VA, and for incandescent bulbs – 1800 W, which confirms its versatility. A width of 1 module allows for efficient use of space in the switchgear cabinet.

• Lighting control: ideal for switching lighting on and off in residential, commercial and industrial buildings.
• Home automation systems: enables the creation of intelligent lighting scenes and integration with building management systems.
• Motor control: can be used to control small electric motors.
• Impulse applications: works perfectly in systems requiring short control pulses.
• Industrial applications: a reliable element of automation in production processes and machine control.

Construction and mounting

The PB404 relay has been designed for easy mounting on a DIN TH35 rail. Its compact dimensions (width 1 module, depth 44 mm) allow for efficient use of space in the switchgear cabinet. Connection of wires is done via screw terminals, which accept wires with a cross-section of 1x4 mm² / 2x2.5 mm². The IP20 degree of protection provides basic protection against touch and contamination. The construction allows for mounting in any working position.