SQUARE D 9421LB4 Rotary Operator, 125 A, 3 Poles, 6 in Shaft
The SQUARE D Rotary Operator (MPN 9421LB4) is a 3-pole circuit breaker handle and operator accessory designed for use with PowerPact B circuit breakers in NEMA 1, 3, 3R, 4, 4X, and 12 enclosures. It includes a long…
SKU 3G-OTH-19469
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 9421LB4) is a 3-pole circuit breaker handle and operator accessory designed for use with PowerPact B circuit breakers in NEMA 1, 3, 3R, 4, 4X, and 12 enclosures. It includes a long shaft and is rated for 125 A. This rotary operator enables external manual operation of the breaker while maintaining enclosure integrity.
Frequently Asked Questions
What is the SQUARE D 9421LB4 rotary operator used for?
The SQUARE D 9421LB4 rotary operator is a circuit breaker handle accessory that allows external manual on/off control of a PowerPact B breaker without opening the enclosure door. It is rated for 125 A, 3 poles, and works with NEMA 1, 3, 3R, 4, 4X, and 12 enclosures.
What are the specifications of the SQUARE D 9421LB4?
The SQUARE D 9421LB4 is a 3-pole rotary operator rated for 125 A. It includes a 6 in handle/long 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 9421LB4.
Where to buy the SQUARE D 9421LB4 worldwide?
3G Electric supplies the SQUARE D 9421LB4 rotary operator to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this Square D circuit breaker handle accessory.
How to install the SQUARE D 9421LB4 rotary operator?
Installation of the SQUARE D 9421LB4 rotary operator typically involves mounting the operator to the enclosure door and coupling it to the PowerPact B breaker's long shaft. Always follow the manufacturer's instructions and ensure the breaker is de-energized before installation. Proper alignment is critical for reliable operation.
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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