Product Description

Siemens 7RQ0202-1AX00 Relay Socket – 1 Changeover Contact, 5-Pin, 10A, PCB Mount

The Siemens 7RQ0202-1AX00 is a PCB-mounted relay socket for compatible 1 changeover contact (1CO) plug-in relays. It has a 5-pin connection arrangement and is specified for the 10 A socket category. Siemens' official SINOVA 7RQ documentation identifies 7RQ0202-1AX00 as the PCB mounting socket for 1 CO, 10 A relays.

For SB Smart, this product is suitable for PCB-based industrial control circuits, relay interfaces, machine-control equipment, electrical control boards, maintenance and replacement applications.

Siemens 7RQ0202-1AX00 Relay Socket

The 7RQ0202-1AX00 belongs to the Siemens SINOVA 7RQ plug-in relay accessory range. It provides the mechanical and electrical interface between a compatible plug-in relay and the printed circuit board. Siemens specifically lists this article under PCB mounting for the 1CO, 10 A configuration.

1 Changeover Contact

The socket is designed for a relay with 1 changeover contact, commonly written as 1CO or 1 C/O.

A changeover contact provides:

• Common contact

• Normally Open (NO) contact

• Normally Closed (NC) contact

This allows the associated relay to switch one circuit between two output paths according to the relay state.

Typical applications include:

• Control-circuit switching

• Status indication

• Signal switching

• Interlocking

• Auxiliary control

• Machine-control circuits

The actual switching function depends on the compatible relay and the connected circuit.

5-Pin Connection

The 7RQ0202-1AX00 is the 5-pin PCB mounting socket for the 1CO relay configuration. Siemens' official selection data identifies the article under the 1CO, 10 A socket category, while product listings also identify it as a 5-pin PCB-mounted socket.

The relay installed in the socket must have the matching 5-pin arrangement and compatible mechanical dimensions.

10 A Rating

The socket is specified for the 1CO, 10 A category. Siemens explicitly identifies 7RQ0202-1AX00 as the PCB socket corresponding to the 1 CO, 10 A relay configuration.

The actual permissible switching load should always be checked against the complete relay, socket and application circuit.

PCB Mounting

The 7RQ0202-1AX00 is designed for printed-circuit-board mounting.

PCB mounting provides a compact method of integrating a relay interface into:

• Industrial control boards

• Relay interface circuits

• Machine-control electronics

• Electrical control assemblies

• Panel electronics

The socket remains mounted on the PCB while the compatible plug-in relay can be removed when servicing is required.

Relay Socket Function

The socket provides two main functions:

Mechanical support: Holds the compatible plug-in relay in position.

Electrical interface: Connects the relay terminals to the PCB circuit.

Using a socket also makes relay replacement easier because the relay can generally be removed without desoldering the socket from the PCB.

Compatible Plug-In Relay

The socket should be paired with a compatible Siemens 7RQ plug-in relay having the appropriate 1CO, 5-pin configuration.

Siemens' 7RQ range includes 1CO plug-in relays in several control-supply voltage versions. The exact relay article should be selected according to the required coil voltage and other relay features.

Before installation, verify:

• Contact configuration

• Pin arrangement

• Coil voltage

• Mechanical compatibility

• Electrical rating

Compact Relay Interface

A PCB-mounted relay socket helps keep relay connections organized on the control board.

The arrangement can provide:

• Reduced point-to-point wiring

• Compact component layout

• Consistent relay installation

• Easy relay replacement

• Simplified maintenance

This makes the socket useful for OEM control boards and industrial electronic assemblies.

Industrial Control Applications

The 7RQ0202-1AX00 can be considered for compatible applications such as:

• Industrial control panels

• PCB relay interfaces

• Machine-control circuits

• Process-control boards

• Electrical signalling circuits

• Equipment status interfaces

• Industrial electronic assemblies

• Maintenance and replacement applications

The final application depends on the compatible relay and the electrical circuit design.

Difference from DIN Rail Mounting Socket

Siemens provides separate mounting sockets for the same 1CO, 10 A relay configuration:

7RQ0202-1AX00 – PCB mounting

7RQ0201-1AX00 – DIN rail mounting

Therefore, the mounting method should be selected according to the panel or PCB design.

Difference from 2CO 6A Socket

The 7RQ0202-1BX00 is a different PCB-mounted socket for 2CO, 6 A relays, whereas 7RQ0202-1AX00 is for 1CO, 10 A relays. Siemens lists these as separate socket articles.

This difference is important when replacing a relay socket because the contact configuration and rated-current category are different.

Difference from 2CO 10A Socket

The 7RQ0212-1BX00 is the 2CO, 10 A PCB-mounted socket, while 7RQ0202-1AX00 is the 1CO, 10 A PCB-mounted socket.

The correct article should therefore be selected according to both the relay contact configuration and current category.

Replacement and Maintenance

The 7RQ0202-1AX00 can be used where an existing PCB-mounted socket for a compatible 1CO relay needs replacement.

Before ordering, verify:

• Existing relay article

• 1CO contact configuration

• 5-pin arrangement

• 10 A socket category

• PCB footprint

• Relay coil voltage

• Mounting method

This helps avoid selecting a socket with a different contact configuration or installation method.

Siemens SINOVA 7RQ Socket Range

Siemens provides a range of relay sockets according to contact configuration, current rating and mounting method:

The configuration and article numbers are listed in Siemens' official 7RQ brochure.

Standard Package Quantity

Published Siemens price-list information lists 7RQ0202-1AX00 with a standard package quantity of 10 pieces in the referenced pricing data.

Commercial packaging or minimum-order requirements should be confirmed at the time of procurement.

Suitable for Electrical Panel Builders and Industrial Buyers

The Siemens 7RQ0202-1AX00 is relevant for:

• Electrical panel builders

• PCB designers

• Industrial buyers

• Electrical contractors

• Machine builders

• Maintenance departments

• OEM maintenance teams

• Electrical product dealers

• Replacement-part procurement

For SB Smart, the product is positioned around industrial electrical product supply and procurement.

Technical Specification

The contact configuration, mounting type and current category are supported by Siemens' official 7RQ documentation; the package quantity is supported by Siemens pricing data.

Key Features

• Siemens SINOVA 7RQ relay socket

• Article number 7RQ0202-1AX00

• 1 changeover contact / 1CO relay interface

• 5-pin configuration

• 10 A socket category

• PCB mounting

• Designed for compatible Siemens plug-in relays

• Suitable for compact industrial control boards

• Suitable for relay replacement and maintenance

Benefits

• PCB mounting: Allows direct integration into compatible control boards.

• 1CO configuration: Suitable for relays providing one changeover switching function.

• 5-pin interface: Provides the specified connection arrangement for compatible 1CO relays.

• 10 A category: Suitable for compatible relay applications within the specified rating.

• Plug-in design: Simplifies relay replacement and maintenance.

• Compact installation: Helps maintain an organized PCB layout.

• Siemens standardized accessory: Simplifies product identification and procurement.

Why Choose Siemens 7RQ0202-1AX00?

The Siemens 7RQ0202-1AX00 is a dedicated 5-pin PCB-mounted relay socket for 1CO, 10 A plug-in relays. Siemens' official SINOVA 7RQ documentation confirms the article as the PCB mounting socket for the 1CO, 10 A relay category.

It is suitable for customers looking to buy or source Siemens relay sockets for PCB-based industrial controls, machine-control circuits, electrical panels, maintenance and replacement requirements.

For SB Smart, this product is best presented as a Siemens industrial relay accessory for PCB mounting, supply and procurement across India.

Delivery Across India

SB Smart supplies Siemens industrial electrical products and relay accessories across Faridabad, Gurgaon/Gurugram, Delhi NCR, Haryana, Noida, Punjab, Mumbai and other major Indian cities.

Major delivery locations include:

• Faridabad

• Delhi

• Gurgaon/Gurugram

• Delhi NCR

• Noida

• Greater Noida

• Haryana

• Punjab

• Mumbai

• Pune

• Ahmedabad

• Bengaluru

• Hyderabad

• Chennai

• Kolkata

• Jaipur

• Chandigarh

• Lucknow

• Indore

• Surat

• Vadodara

• Nagpur

• Coimbatore

• And other major cities across India

Frequently Asked Questions

1. What is Siemens 7RQ0202-1AX00?

The 7RQ0202-1AX00 is a Siemens PCB-mounted relay socket for 1 changeover contact (1CO) relays, in the 10 A socket category.

2. How many pins does it have?

The associated 1CO relay/socket arrangement uses 5 pins.

3. What is the current rating?

It is specified in the 1CO, 10 A socket category.

4. What does 1CO mean?

1CO means one changeover contact, with a common connection that switches between normally open and normally closed paths.

5. Is it PCB mounted?

Yes. 7RQ0202-1AX00 is specifically the PCB mounting socket.

6. What is the DIN rail equivalent?

The corresponding DIN rail mounting socket is 7RQ0201-1AX00.

7. What is the difference between 7RQ0202-1AX00 and 7RQ0202-1BX00?

7RQ0202-1AX00: 1CO, 10 A

7RQ0202-1BX00: 2CO, 6 A

8. What is the difference between 7RQ0202-1AX00 and 7RQ0212-1BX00?

7RQ0202-1AX00: 1CO, 10 A

7RQ0212-1BX00: 2CO, 10 A

9. What is the standard package quantity?

The published Siemens pricing data specifies 10 pieces.

10. Can it be used with any 5-pin relay?

No. The relay must have the correct 1CO, 5-pin mechanical and electrical configuration.

11. Where can I buy Siemens 7RQ0202-1AX00 in India?

SB Smart supplies Siemens industrial electrical products and relay accessories in India for industrial buyers, panel builders, PCB applications, maintenance requirements and replacement procurement.