Product Description

Siemens 7RQ0100-0BC00 Plug-In Relay – 2CO, 8-Pin, 6A, 24V DC

The Siemens 7RQ0100-0BC00 is a SINOVA 7RQ plug-in relay with 2 changeover contacts (2CO), an 8-pin configuration, a 6 A contact rating, and a 24 V DC control supply. Siemens product documentation identifies this exact article as the 24 V DC version of the 2CO, 6 A, 8-pin relay family. Current product information also lists a mechanical flag, LED indicator and free-wheeling diode for this version.

Siemens 7RQ0100-0BC00 Plug-In Relay

The 7RQ0100-0BC00 belongs to the Siemens SINOVA 7RQ plug-in relay range and is designed for industrial control, switching, signalling, auxiliary circuits and relay-interface applications.

It provides two changeover contacts in a compact plug-in format, allowing two independent switching functions to be controlled from one relay coil.

Siemens lists 7RQ0100-0BC00 specifically as a 2CO, 6 A, 8-pin, 24 V DC relay.

24 V DC Control Supply

The defining specification of this article is its 24 V DC control supply.

This makes the relay suitable for control circuits designed around a 24 V DC relay coil. The supply voltage must match the exact relay article during installation.

Within the same 2CO, 6 A family, Siemens provides different control-voltage versions, so the complete article number should always be checked before replacement.

2 Changeover Contacts

The relay provides 2 changeover contacts (2CO).

Each changeover contact provides a common connection that switches between normally open and normally closed paths according to the relay state.

The two contacts can be used for:

• 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 ratings.

8-Pin Plug-In Configuration

The 7RQ0100-0BC00 uses an 8-pin plug-in configuration.

The relay should be installed in a compatible socket designed for the corresponding 2CO, 6 A, 8-pin relay arrangement.

For this relay family, Siemens lists compatible socket options including:

7RQ0201-1BX00 – DIN rail mounting

7RQ0202-1BX00 – PCB mounting

6 A Contact Rating

The exact article belongs to the 2CO, 6 A relay category.

The actual switching application should be evaluated according to the connected load, operating voltage, switching category and circuit conditions rather than relying only on the nominal 6 A value.

Mechanical Flag and LED Indicator

Current product information identifies the 7RQ0100-0BC00 with a mechanical flag and LED indicator. The LED provides a visual indication of relay energization, while the mechanical flag provides an additional visible indication of relay status.

These features can assist with:

• Panel inspection

• Relay-status identification

• Troubleshooting

• Preventive maintenance

• Control-circuit checking

Free-Wheeling Diode

The 24 V DC version is also listed with a free-wheeling diode.

A free-wheeling diode is used with a DC relay coil to suppress the inductive voltage generated when the coil is de-energized. This helps reduce voltage spikes in the associated control circuit.

The polarity and wiring requirements of the relay should be followed according to the applicable Siemens documentation.

Plug-In Construction

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

This arrangement supports:

• Easy relay replacement

• Reduced maintenance effort

• Convenient servicing

• Simplified troubleshooting

• Reusable socket wiring

The socket can remain connected to the fixed control wiring while the relay is replaced separately.

Compatible Relay Sockets

For the 2CO, 6 A, 8-pin relay family, Siemens identifies:

7RQ0201-1BX00 – DIN rail mounting socket

7RQ0202-1BX00 – PCB mounting socket

The socket should be selected according to the required mounting method and confirmed for mechanical compatibility.

Industrial Control Applications

The 7RQ0100-0BC00 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

• Industrial machinery

• Maintenance and replacement applications

Control and Interlocking Applications

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

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

• Electrical interlocking

• Equipment status feedback

• Alarm indication

• Auxiliary control

• Signal switching

• Control sequence functions

• Process-status indication

The final application should follow the relay and connected-load specifications.

Difference from 24 V AC Version

The 7RQ0100-0BM10 is the 24 V AC, 6 A, 2CO, 8-pin version, while 7RQ0100-0BC00 is the 24 V DC version.

Although both are nominally 24 V, they are different relay articles because one uses an AC coil and the other a DC coil.

Difference from 48 V DC Version

The 7RQ0100-0BD00 is the 48 V DC version, while 7RQ0100-0BC00 is the 24 V DC version.

Both belong to the same 2CO, 6 A, 8-pin family, but their coil voltages differ.

Difference from 24 V DC, 10 A Relay

The Siemens 7RQ0110-0BC00 is a different 2CO, 10 A, 8-pin, 24 V DC relay, while 7RQ0100-0BC00 is the 2CO, 6 A version. Siemens' selection data separates these relay families by current category.

This distinction is important when selecting a replacement relay.

Replacement and Maintenance

The 7RQ0100-0BC00 can be used as a replacement where an existing installation requires a 2CO, 8-pin, 6 A, 24 V DC plug-in relay.

Before ordering, verify:

• Exact relay article

• 24 V DC control supply

• DC operation

• 2CO contact configuration

• 8-pin arrangement

• 6 A category

• Compatible socket

• Existing control circuit

This helps avoid selecting a similar relay with a different coil voltage or contact rating.

Suitable for Electrical Panel Builders and Industrial Buyers

The Siemens 7RQ0100-0BC00 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 7RQ0100-0BC00

• 2 changeover contacts / 2CO

• 8-pin configuration

• 6 A contact rating

• 24 V DC control supply

• Mechanical flag

• LED indicator

• Free-wheeling diode

• Plug-in construction

• Compatible with Siemens DIN rail and PCB relay sockets

• Suitable for industrial switching, control and signalling applications

Benefits

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

• 24 V DC coil: Suitable for compatible 24 V DC control circuits.

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

• LED indication: Helps identify relay energization during inspection.

• Mechanical flag: Provides an additional visible relay-status indication.

• Free-wheeling diode: Helps suppress inductive voltage transients from the DC coil.

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

• Flexible socket options: Suitable for compatible DIN rail and PCB installations.

• Siemens standardized product: Simplifies identification and procurement.

Why Choose Siemens 7RQ0100-0BC00?

The Siemens 7RQ0100-0BC00 is a 2CO, 8-pin, 6 A plug-in relay designed for 24 V DC control circuits. It combines a compact plug-in construction with a mechanical flag, LED indication and free-wheeling diode, making it suitable for compatible industrial control and switching applications.

It is suitable for customers looking to buy or source Siemens 7RQ plug-in relays for industrial control panels, machine-control circuits, signalling, auxiliary 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 7RQ0100-0BC00?

The 7RQ0100-0BC00 is a Siemens SINOVA 7RQ plug-in relay with 2 changeover contacts, 8 pins, 6 A contact rating and 24 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 24 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 6 A, 2CO category.

6. Does it have an LED indicator?

Yes. Current product information lists an LED indicator.

7. Does it have a mechanical flag?

Yes. The 7RQ0100-0BC00 is listed with a mechanical flag.

8. Does it have a free-wheeling diode?

Yes. Current product information lists a free-wheeling diode for this 24 V DC version.

9. Which DIN rail socket is compatible?

The corresponding DIN rail socket is 7RQ0201-1BX00 for the 2CO, 6 A relay family.

10. Which PCB socket is compatible?

The corresponding PCB-mounted socket is 7RQ0202-1BX00.

11. What is the difference between 7RQ0100-0BC00 and 7RQ0100-0BM10?

7RQ0100-0BC00 = 24 V DC, 6 A, 2CO, 8-pin

7RQ0100-0BM10 = 24 V AC, 6 A, 2CO, 8-pin

12. What is the difference between 7RQ0100-0BC00 and 7RQ0110-0BC00?

7RQ0100-0BC00 = 2CO, 6 A, 24 V DC

7RQ0110-0BC00 = 2CO, 10 A, 24 V DC

13. Where can I buy Siemens 7RQ0100-0BC00 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.