Siemens
Siemens 3UA5900-1J Thermal Delayed Overload Relay
Siemens 3UA5900-1J Thermal Delayed Overload Relay
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12-Mo Warranty
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12-month warranty
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Same-day dispatch
Order by 2pm CST
Worldwide delivery
US, EU, Asia, Middle East
Veteran-owned
CAGE: 9NK75
Thermal overload protection
Adjustable amp setting
1NO+1NC auxiliary contacts
Phase loss protection
Class 10 tripping
Product description
The Siemens 3UA5900-1J is a thermal-delayed overload relay designed for standalone installation. It features an adjustable setting range of 6.3 to 10 Amps and includes one normally open (NO) and one normally closed (NC) auxiliary contact.
This relay is vital for protecting medium-sized electric motors and circuits from thermal overloads and phase imbalances, ensuring operational reliability and longevity.
Stanlo Automation, a veteran-owned supplier of industrial automation surplus, offers the Siemens 3UA5900-1J. We are committed to providing quality components and exceptional service to meet your automation needs.
Technical specifications
| Setting Range | 6.3-10A |
| Contacts | 1NO+1NC |
| Type | Thermal Delayed Overload Relay |
| Mounting | Single Unit Installation |
| Manufacturer | Siemens |
Common applications
Motor control
Industrial automation
Manufacturing
Process control
Machinery protection
Compatible systems
Siemens 3TF30-3TF46 contactors
Also known as
Siemens 3UA59-00-1J, 3UA59001J, Siemens thermal relay
Replaces / compatible with
This overload relay is part of the Siemens 3UA59 series, designed for applications requiring precise thermal protection.
Technical note
Expert tip
This relay is suitable for installation as a single unit, offering flexibility in panel design. It's often paired with Siemens 3TF contactors.What happens next?
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2
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3
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Frequently asked questions
Can the Siemens 3UA5900-1J overload relay be used for single-phase motors?
Yes, the Siemens 3UA5900-1J overload relay can be used to protect single-phase motors. However, ensure all three bimetals are wired into the circuit for proper protection against phase loss and unbalanced loads.