55.34.9.024.0040

What type of relay is this?

This is a plug-in general purpose power relay with 4 changeover contacts (4PDT / 4 CO). It is designed for use in control panels and similar industrial switching duties where multiple contact paths are needed.

What coil supply does this relay require?

This version is fitted with a 24 V DC coil. For the 55.34.9.024.0040 variant, the DC operating range is 19.2 to 26.4 V.

How many contacts does the relay provide?

It provides four changeover contacts, also commonly described as 4PDT or 4 CO. This makes it suitable for switching several circuits from a single coil input.

What is the rated switching current?

The relay is rated for 7 A switching current, with a maximum peak current of 15 A. For 4-pole operation, the maximum switching voltage is 250 V AC.

Is this a plug-in relay or a PCB mounting relay?

This is a plug-in relay intended for use with compatible sockets. It is not the PCB relay version itself, although there are matching socket options for panel, DIN rail and PCB-based installations.

Does the relay include a test button or mechanical indicator?

Yes. This version includes a lockable test button and a mechanical flag indicator. That allows quick manual checking of contact operation and easy visual indication of relay status.

What contact arrangement does the relay use?

The relay uses changeover contacts, meaning each pole can switch between normally open and normally closed positions. This gives added flexibility in control and interlocking circuits.

What contact material is used?

The standard contact material is AgNi (silver nickel). This is commonly used for dependable general purpose switching performance.

Which sockets are compatible with this relay?

Common compatible sockets for the 4-pole plug-in version include 94.P4, 94.04, 94.54, 94.84.2, 94.94.3, 94.74, 94.14, 94.24 and 94.34. Socket choice depends on whether the installation needs DIN rail mounting, panel mounting, push-in terminals, screw terminals or solder connections.

Can this relay be used on DIN rail installations?

Yes. When paired with the appropriate socket, this relay can be used in DIN rail mounted assemblies. Several compatible socket styles are available for 35 mm rail mounting.

What is the operating temperature range?

The relay itself has an ambient operating temperature range of -40 to +85 °C. This makes it suitable for a wide range of industrial panel environments.

What are the coil electrical characteristics?

For the 24 V DC coil version, the typical coil resistance is 600 ohms and the coil current at nominal voltage is 40 mA. Rated coil consumption is 1 W.

How quickly does the relay operate?

Typical operate time is 11 ms and release time is 3 ms. These values make it well suited to general control and switching tasks where fast but not ultra-high-speed operation is required.

What is the minimum switching load?

The minimum switching load is 300 mW, referenced as 5 V / 5 mA. This helps indicate the lower end of the relay's practical switching capability.

What applications is this relay commonly used in?

This relay is commonly used in control panels, electrical distribution panels, circuit breaker and switch assemblies, hoists and cranes, lighting controls, power management systems, and similar industrial automation duties.

Is this relay suited to multi-circuit switching?

Yes. Because it has four changeover poles, it is a strong choice where one coil signal needs to switch several independent circuits at the same time.