Siemens
Siemens 321-7BH01-0AB0 Intermediate Relay
Siemens 321-7BH01-0AB0 24V DC Intermediate Relay
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12-Mo Warranty
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12-month warranty
All units tested
Same-day dispatch
Order by 2pm CST
Worldwide delivery
US, EU, Asia, Middle East
Veteran-owned
CAGE: 9NK75
24V DC Coil
1 NO + 1 NC Contacts
Signal Amplification
Electrical Isolation
Siemens Quality
Product description
The Siemens 321-7BH01-0AB0 is an intermediate relay with a 24V DC coil and a contact configuration of 1 Normally Open (NO) and 1 Normally Closed (NC) pole. It's used for signal amplification and isolation in control circuits.
This relay is essential for complex automation tasks, allowing a low-power PLC output to control a higher-power device or for creating logic within control panels. Applications include machine control, process automation, and building management systems.
Stanlo Automation, a veteran-owned supplier of surplus industrial automation parts, offers this Siemens intermediate relay. We are committed to providing reliable components to keep your automation projects on track.
Technical specifications
| Coil Voltage | 24V DC |
| Contacts | 1 NO + 1 NC |
| Contact Rating | (Specify if found) |
Common applications
PLC Interfacing
Control Logic
Machine Automation
Process Control
Building Automation
Compatible systems
Siemens S7-300
Siemens LOGO!
Various industrial control systems
Also known as
Siemens 321-7BH01-0AB0 relay
Siemens 24V DC intermediate relay
Replaces / compatible with
This intermediate relay is suitable for control circuits requiring a 24V DC coil and mixed NO/NC contacts. It can replace similar relays in Siemens or other compatible automation systems.
Technical note
Expert tip
This relay is ideal for applications where a PLC output needs to trigger an action and simultaneously break another circuit.What happens next?
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Frequently asked questions
What is the contact configuration of the Siemens 321-7BH01-0AB0 intermediate relay?
The Siemens 321-7BH01-0AB0 intermediate relay features one normally open (NO) contact and one normally closed (NC) contact. This allows for versatile switching and control functions.