SQUARE D 9421LB1 Rotary Operator, 125 A, 3 Poles, 6 in Shaft
The SQUARE D Rotary Operator (MPN 9421LB1) is a 3-pole circuit breaker handle and operator accessory designed for use with NEMA 1, 3, 3R, 4, 4X, and 12 enclosures housing PowerPact B circuit breakers. It includes a…
SKU 3G-OTH-19484
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
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Product Description
The SQUARE D Rotary Operator (MPN 9421LB1) is a 3-pole circuit breaker handle and operator accessory designed for use with NEMA 1, 3, 3R, 4, 4X, and 12 enclosures housing PowerPact B circuit breakers. It includes a standard shaft and is rated for 125 A amps.
Frequently Asked Questions
What is the SQUARE D 9421LB1 rotary operator used for?
The SQUARE D 9421LB1 rotary operator is a circuit breaker handle accessory for PowerPact B breakers in NEMA 1, 3, 3R, 4, 4X, and 12 enclosures. It provides external rotary actuation for 3-pole breakers rated up to 125 A, enabling safe on/off control without opening the enclosure door.
What are the specifications of the SQUARE D 9421LB1 rotary operator?
The SQUARE D 9421LB1 is a 3-pole rotary operator rated for 125 A. It includes a standard shaft and is designed for use with PowerPact B circuit breakers in NEMA 1, 3, 3R, 4, 4X, and 12 enclosures. The accessory type is rotary operator, and the manufacturer part number is 9421LB1.
Where to buy the SQUARE D 9421LB1 rotary operator worldwide?
You can source the SQUARE D 9421LB1 rotary operator through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine SQUARE D accessories for PowerPact B breakers.
How to install the SQUARE D 9421LB1 rotary operator on a PowerPact B breaker?
Install the SQUARE D 9421LB1 rotary operator by mounting it to the enclosure door and coupling the standard shaft to the PowerPact B breaker's rotary mechanism. Ensure the handle aligns with the breaker's ON/OFF positions. Follow generic best practices for NEMA-rated enclosures to maintain seal integrity and safety.
Used in
Common applications for SQUARE DSQUARE D Products
3G Electric supplies SQUARE D square d circuit breaker handles & operators. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
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