Product Description

Siemens 7RQ0110-0BD00 Plug-In Relay – 2CO, 8-Pin, 10A, 48V DC

The Siemens 7RQ0110-0BD00 is a SINOVA 7RQ plug-in relay with 2 changeover contacts (2CO), an 8-pin configuration, and a 10 A contact rating. The exact article is designed for a 48 V DC control supply and features an LED indicator across the coil. Siemens' official 7RQ documentation identifies 7RQ0110-0BD00 within the 2 CO, 10 A, 8-pin DC relay family.

Siemens 7RQ0110-0BD00 Plug-In Relay

The 7RQ0110-0BD00 belongs to the Siemens SINOVA 7RQ plug-in relay family for industrial control, switching, signalling and auxiliary circuit applications.

It provides two changeover contacts in an 8-pin plug-in format, allowing one relay to control multiple switching paths from a single control signal. Siemens' official selection data lists the article under the 2CO, 10 A, 8-pin DC relay category.

48 V DC Control Supply

The defining specification of 7RQ0110-0BD00 is its 48 V DC control supply.

Within the same Siemens 2CO, 10 A, 8-pin DC relay family, the control-voltage variants include:

• 6 V DC – 7RQ0110-0BA00

• 12 V DC – 7RQ0110-0BB00

• 24 V DC – 7RQ0110-0BC00

• 48 V DC – 7RQ0110-0BD00

• 110 V DC – 7RQ0110-0BE00

The relay coil should be connected to the specified 48 V DC control supply.

2 Changeover Contacts

The relay provides 2 changeover contacts (2CO).

Each changeover contact includes a common terminal and switches between normally open and normally closed paths according to the relay state.

The two contacts can be used for applications such as:

• Control-circuit switching

• Auxiliary switching

• Status indication

• Signal transfer

• Electrical interlocking

• Alarm circuits

• Machine-control circuits

The connected load must remain within the applicable relay contact ratings.

8-Pin Configuration

The 7RQ0110-0BD00 uses an 8-pin plug-in configuration. Siemens specifies this article within the 2CO, 10 A, 8-pin relay family.

The relay should be installed in a compatible socket with the matching mechanical and electrical pin configuration.

For this relay family, Siemens identifies:

7RQ0211-1BX00 – DIN rail mounting socket

7RQ0212-1BX00 – PCB mounting socket

10 A Contact Rating

The exact relay belongs to the 10 A, 2CO category. Siemens' official selection data confirms the 2 CO, 10 A, 8-pin specification for the 7RQ0110 series.

The actual switching load should be selected according to the load type, switching conditions and the specifications of the complete relay circuit.

LED Indicator Across Coil

The 7RQ0110-0BD00 includes an LED indicator across the coil. This provides a visual indication when the relay coil is energized and can assist during panel inspection and troubleshooting.

This feature is useful for quickly identifying relay operating status without requiring separate measurement in many routine inspection situations.

Plug-In Construction

The relay uses a plug-in construction, allowing it to be inserted into a compatible socket.

This design supports:

• Easy relay replacement

• Faster maintenance

• Convenient panel servicing

• Simplified troubleshooting

• Reusable socket wiring

The socket stays connected to the circuit while the relay can be replaced separately.

Compatible Mounting Sockets

For the 2CO, 10 A, 8-pin relay family, Siemens lists:

7RQ0211-1BX00 – DIN rail mounting

7RQ0212-1BX00 – PCB mounting

This allows the relay to be used in both DIN rail control panels and PCB-based control assemblies.

Industrial Control Applications

The 7RQ0110-0BD00 can be considered for compatible applications such as:

• Industrial control panels

• Electrical cabinets

• Machine-control systems

• Process-control circuits

• Relay interface systems

• Equipment signalling

• Alarm circuits

• Status indication

• Auxiliary switching

• Maintenance and replacement applications

The exact application should be determined from the complete control-circuit design.

Control and Interlocking Applications

The two changeover contacts allow a single relay to control multiple electrical paths.

Depending on the circuit design, the contacts can be used for:

• Electrical interlocking

• Equipment status feedback

• Alarm indication

• Auxiliary control

• Signal switching

• Process-status indication

• Control sequence functions

The connected load and switching conditions should remain within the relay's applicable specifications.

Difference from 24 V DC Version

The 7RQ0110-0BC00 is the 24 V DC version, while 7RQ0110-0BD00 is the 48 V DC version.

Both belong to the same 2CO, 10 A, 8-pin DC relay family, but their coil/control voltages are different.

Difference from 110 V DC Version

The 7RQ0110-0BE00 is the 110 V DC version, while 7RQ0110-0BD00 is the 48 V DC version.

The correct relay must be selected according to the actual DC control supply.

Difference from 48 V AC Version

The 7RQ0110-0BN00 is the 48 V AC version, while 7RQ0110-0BD00 is specifically the 48 V DC version. Siemens assigns separate article numbers to the AC and DC variants.

Therefore, 48 V AC and 48 V DC relays should not be treated as interchangeable.

Replacement and Maintenance

The 7RQ0110-0BD00 can be used as a replacement where an existing installation requires a 2CO, 10 A, 8-pin, 48 V DC plug-in relay.

Before ordering, verify:

• Exact relay article

• Control-supply voltage

• AC or DC requirement

• 2CO contact arrangement

• 8-pin configuration

• Contact rating

• Compatible socket

• Existing control circuit

This helps prevent selecting a similar relay with a different control voltage or contact configuration.

Industrial Procurement Applications

The 7RQ0110-0BD00 is relevant for:

• Electrical panel builders

• Industrial buyers

• Electrical contractors

• Machine builders

• Maintenance departments

• OEM maintenance teams

• Control-panel assemblers

• Electrical product dealers

• Replacement-part procurement

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

Key Features

• Siemens SINOVA 7RQ plug-in relay

• Article number 7RQ0110-0BD00

• 2 changeover contacts / 2CO

• 8-pin configuration

• 10 A contact rating

• 48 V DC control supply

• LED indicator across coil

• Plug-in construction

• Compatible with Siemens DIN rail and PCB mounting sockets

• Suitable for industrial switching, control and signalling applications

Benefits

• 2CO configuration: Provides two changeover switching functions from one relay.

• 48 V DC coil: Suitable for compatible 48 V DC control circuits.

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

• LED coil indication: Helps identify relay energization during inspection.

• 8-pin plug-in design: Supports convenient installation and replacement.

• Flexible mounting: Compatible with Siemens DIN rail and PCB socket options.

• Industrial design: Suitable for control, signalling, interlocking and auxiliary switching.

Why Choose Siemens 7RQ0110-0BD00?

The Siemens 7RQ0110-0BD00 is a 2CO, 8-pin, 10 A plug-in relay with a 48 V DC control supply and LED indicator across the coil. Siemens' official selection data confirms the exact article within the 2 CO, 10 A, 8-pin DC relay family.

It is suitable for customers looking to buy or source Siemens 7RQ plug-in relays for industrial control panels, machine-control circuits, signalling, switching, maintenance and replacement requirements.

For SB Smart, this product is best presented as a Siemens industrial plug-in relay for supply and procurement across India.

Delivery Across India

SB Smart supplies Siemens industrial electrical products and 7RQ plug-in relays 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 7RQ0110-0BD00?

The 7RQ0110-0BD00 is a Siemens SINOVA 7RQ plug-in relay with 2 changeover contacts, 8 pins, 10 A contact rating and 48 V DC control supply.

2. What does 2CO mean?

2CO means the relay provides two changeover contacts, each with common, normally open and normally closed connections.

3. What is the control voltage?

The exact article is designed for 48 V DC.

4. How many pins does it have?

It has an 8-pin plug-in configuration.

5. What is the contact rating?

The relay belongs to the 10 A contact-rating category.

6. Does it have an LED indicator?

Yes. Siemens specifies an LED indicator across the coil.

7. Which DIN rail socket is compatible?

The corresponding DIN rail mounting socket is 7RQ0211-1BX00.

8. Which PCB socket is compatible?

The corresponding PCB mounting socket is 7RQ0212-1BX00.

9. What is the difference between 7RQ0110-0BD00 and 7RQ0110-0BN00?

7RQ0110-0BD00 = 48 V DC

7RQ0110-0BN00 = 48 V AC

10. What is the difference between 7RQ0110-0BD00 and 7RQ0110-0BC00?

7RQ0110-0BD00 = 48 V DC

7RQ0110-0BC00 = 24 V DC

11. Where can I buy Siemens 7RQ0110-0BD00 in India?

SB Smart supplies Siemens industrial electrical products and 7RQ plug-in relays in India for industrial buyers, panel builders, maintenance requirements and replacement procurement.