Modular pulse relay with memory and switch-off delay | 1C/O | 10A | 230VAC/DC | DIN | Promfactor Baltic FRT21

Technical Data
Supply Voltage: 230V AC/DC
Nominal Frequency: 50/60 Hz
Control Current: <1 mA
Power Consumption: <0.8 W
Time Setting Range: 1-12 min
Contact Configuration: 1 C/O (normally open closing contact)
Maximum Current: 10A (AC1)
Insulation Voltage: 250V
Protection Rating: IP20
Pollution Level: 3
Durability: Electrical: 10⁵ cycles. Mechanical: 10⁶ cycles
Wire Cross-section: 0.5 - 2.5 mm²
Screw Tightening Torque: 0.5 Nm
Mounting: On DIN rail TN 35
Operating Temperature: -5...+40°C
Storage Temperature: -10...+50°C
Application
Used in buildings where time-delay control is required, such as staircases, corridors, warehouses, offices.
Suitable for automatic lighting systems where a delay is needed after an impulse signal.
Can be used in automated control systems with short-term signals.
Pros
Automatic control – reduces the need for manual intervention.
Memory function – retains the activation state even if the power is interrupted.
Adjustable switch-off time – flexible 1-12 minute setting allows customization.
Low energy consumption – operates efficiently with minimal power usage.
Compact size – DIN rail mounting saves space in the electrical panel.
Cons
IP20 protection – unsuitable for outdoor or humid environments without additional protection.
Limited contacts – a single switching contact may not be sufficient for more complex systems.
This modular impulse relay is an efficient solution for automated lighting control and other systems requiring switch-off delay with low power consumption.