SQUARE D Thermal Unit: 20 Trip Class, A11.9
SQUARE Electrical.
SKU 3G-OTH-39609
Also listed as: A119 · A11 9 · A11-9
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
Need installation or engineering help?
Ask a question
Product Description
SQUARE Electrical.
Frequently Asked Questions
What is a Square D thermal unit A11.9 used for?
The Square D thermal unit A11.9 is a trip-class 20 overload relay heater element used in motor starters to protect motors from sustained overcurrent. It is commonly applied in industrial control panels, conveyors, pumps, and HVAC equipment where reliable thermal protection is required.
What are the specifications of the Square D thermal unit A11.9?
The Square D thermal unit A11.9 has a manufacturer part number of A11.9 and is rated for trip class 20. It is designed for use with Square D motor starters and provides precise thermal overload protection. For exact current ranges and compatibility, consult the product datasheet.
Where to buy Square D thermal unit A11.9 worldwide?
3G Electric supplies the Square D thermal unit A11.9 to customers worldwide. As a global industrial sourcing partner, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this overload relay heater element.
How to select the correct Square D thermal unit for a motor?
To select the correct Square D thermal unit, match the heater element's trip class and current rating to the motor's full-load amperage and starting characteristics. The A11.9 is a trip-class 20 unit suitable for standard motor starting. Always verify compatibility with your specific Square D starter model.
Used in
Common applications for SQUARESQUARE Products
3G Electric supplies SQUARE electrical. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
