Miniature relay RM85-5021-25-1005 electromagnetic for printed circuit board and plug-in socket 855078

Miniature relay for printed circuit boards and plug-in sockets.

The RM85-5021-25-1005 electromagnetic relay is a component designed for mounting on printed circuit boards and in plug-in sockets, providing reliable circuit switching. It is characterized by high surge current resistance, making it an ideal solution in applications exposed to sudden load surges. A 5 mm pitch simplifies integration with existing projects.

Construction and parameters

This relay has a single normally open contact (1Z) with parameters AC1 - 16 A / 250 V and DC1 - 16 A / 24 V. The coil is powered by 5 V DC. The dimensions of the relay are 29 x 12.7 x 15.7 mm, allowing it to be used in limited space. The materials used for the contacts (AgSnO2) guarantee good conductivity and durability. The IP40 protection class provides basic protection against the ingress of solid objects.

It is worth paying attention to the specific galvanic connections of the terminals: 11 with 21, 12 with 22 and 14 with 24 – this is important when designing electrical connections. The relay is compatible with a wide range of sockets mounted both for printing (EC50, GD50, PW80) and on a 35 mm rail (GZP80, GZT80, GZM80, GZS80, GZF80) or screwed to the board with a single M3 screw (GZMB80).

Applications and benefits

This relay finds application in many fields of electronics and automation, including:

• Load control: Switching various electrical loads, such as motors, heaters or lighting.
• Building automation: Systems for controlling lighting, heating or ventilation.
• Household appliances: Controlling the operation of individual elements of household appliances.
• Industry: Automation of production processes and machine control.

High surge current resistance (80 A for 20 ms) makes the relay cope well with pulsed loads – typical for starting motors or other devices generating high starting currents. This ensures reliable operation and long life. The possibility of mounting both directly on a printed circuit board and in a plug-in socket provides flexibility in design and servicing of devices.