Miniature relay RM85-5021-25-1012 electromagnetic for printed circuit board and plug-in socket High surge current resistance 80A (20 ms) 855081

Miniature relay for printed circuits and sockets

The RM85-5021-25-1012 electromagnetic relay is a compact solution designed for mounting on printed circuit boards and in dedicated sockets. Its construction and parameters make it ideal for applications requiring high resistance to surge currents, e.g., when switching on devices with motors or inductive loads. This relay will find application both in professional installations and in hobbyist devices.

Characteristics and application

This relay is characterized by a single normally closed contact (1Z), which means that the circuit is closed in the rest state. Its AC1 load capacity is 16A at 250V, and DC1 – 16A at 24V. High surge current resistance, reaching 80A for 20ms, makes it a reliable element in applications exposed to temporary load surges. A 5 mm pitch facilitates integration with existing projects.

• Applications: lighting control, solenoid valves, motor operation, building automation, household and industrial appliances.
• Mounting: The relay is designed for mounting both directly on a printed circuit board (PCB) and in plug-in sockets (EC50, GD50, PW80 - for printing, GZP80 (push-in), GZT80, GZM80, GZS80, GZF80 - mounting on a 35 mm rail or screwed to the plate with a single M3 screw, GZMB80 - screwless socket mounting on a 35 mm rail).
• Dimensions: Compact dimensions (29 x 12.7 x 15.7 mm) allow the relay to be integrated even in limited space.
• Contact material: AgSnO2 – provides good conductivity and durability.
• Protection class: IP40 – protection against touching solid foreign objects with a diameter greater than 1mm.

Advantages and benefits

This relay stands out with several key features:

• High surge current resistance (80A/20ms): Ensures reliable operation even with sudden load changes – this is particularly important when controlling motors or other devices generating high starting currents.
• Compact dimensions: Allow easy integration with various electronic systems without taking up much space.
• Universal mounting: The possibility of mounting both on a printed circuit board and in plug-in sockets provides design flexibility.
• Galvanic connection of terminals: Terminals 11 with 21, 12 with 22 and 14 with 24 are galvanically connected, which simplifies connection diagrams.
• Wide range of coil voltages: Available version with a 12V DC coil – easy to adapt to existing control systems.