Thermal Overload Relays
ZS3RU Series Thermal Overload Relays 0.11A-100A
ZS3RU thermal overload relays provide documented adjustable-current bands from 0.11A to 100A for three-phase asynchronous motor overload and phase-loss protection.
0.11-100ADocumented family adjustment span
50/60HzSupplier-listed frequency
3-phase motorsDocumented application
Phase-lossDocumented protection function
Overview | Models | Specifications | Applications | Selection | FAQ | Related Products | RFQ
Product Overview
Product Overview
ZS3RU thermal overload relays provide documented adjustable-current bands from 0.11A to 100A for three-phase asynchronous motor overload and phase-loss protection.
Key Features
- Three public model groups with documented current-setting bands
- Overload and phase-loss protection functions
- Temperature compensation and trip indication
- Direct or independent mounting subject to exact compatibility confirmation
Available Models / Configurations
The following configurations are limited to the documented product-family structure.
| Model | Adjustment Span |
|---|---|
| ZS3RU1116 | 0.11-8A across documented bands |
| ZS3RU1126 | 1.8-12A across documented bands |
| ZS3RU1136 | 5.5-100A across documented bands |
Technical Specifications
| Specification | Verified product-family value |
|---|---|
| Product Type | Thermal overload relay |
| Frequency | AC 50/60Hz |
| Adjustable Current | 0.11A to 100A across model-specific setting bands |
| Protected Load | Three-phase asynchronous motors |
| Functions | Overload protection, phase-loss protection, temperature compensation and trip indication |
| Mounting | Directly with compatible ZS3RT contactors or independently fixed, subject to exact compatibility confirmation |
Applications
The supporting image shows a general application environment and does not depict an exact installed configuration.
Three-phase motor circuits
Overload and phase-loss protection where the exact current-adjustment band is selected for the motor circuit.
Industrial motor-control panels
Contactor-associated or independently mounted thermal overload protection after compatibility is verified.
Information to Confirm for Selection
- Required current-adjustment band
- Exact ZS3RU model
- Compatible contactor or independent mounting requirement
- Reset-mode requirement to be confirmed
- Quantity and application
FAQ
How should I select a configuration?
Confirm the model, core rating or adjustment range, physical configuration, system conditions, quantity and application before requesting a quotation.
Are all commercial and optional details shown?
No. Undocumented commercial and optional details are confirmed during quotation.
Related Products
Request a Quote
Provide the required model or configuration, core ratings, quantity, destination country and application. We will confirm availability and commercial details before quotation.