We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

SQUARE D Rotary Operator: Rotary Operator, 125 A Amps, 3 Poles - Square D Circuit Breaker Handles & Operators
SQUARE DSquare D Circuit Breaker Handles & Operators

SQUARE D Rotary Operator: Rotary Operator, 125 A Amps, 3 Poles

The SQUARE D Rotary Operator (MPN 9421LB3) 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-19454

Brand
SQUARE D
Item
Rotary Operator: Rotary Operator, 125 A Amps, 3 Poles
Category
Square D Circuit Breaker Handles & Operators
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

SQUARE D
Manufacturer Part Number
9421LB3
Amps
125 A
Poles
3
Includes
3 in Handle
For Use With
NEMA 1, 3, 3R, 4, 4X, 12 Enclosures with PowerPact(R) B Circuit Breakers
Accessory Type
Rotary Operator
Number of Poles
3
Handle/Long Shaft
3 in

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

SQUARE D Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SQUARE D Rotary Operator (MPN 9421LB3) 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 3-inch handle and is rated for 125 A amps.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the SQUARE D 9421LB3 rotary operator used for?

The SQUARE D 9421LB3 rotary operator is a circuit breaker handle accessory for PowerPact B breakers in NEMA 1, 3, 3R, 4, 4X, and 12 enclosures. It provides a 3-inch handle for manual on/off control in industrial and commercial power distribution panels.

What are the specifications of the SQUARE D 9421LB3 rotary operator?

The SQUARE D 9421LB3 is a 3-pole rotary operator rated for 125 A amps. It includes a 3-inch handle 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, MPN 9421LB3.

Where to buy the SQUARE D 9421LB3 rotary operator worldwide?

3G Electric supplies the SQUARE D 9421LB3 rotary operator worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time.

How to install the SQUARE D 9421LB3 rotary operator?

Install the SQUARE D 9421LB3 rotary operator by mounting it on the PowerPact B circuit breaker inside the enclosure. Ensure the 3-inch handle aligns with the breaker mechanism. Follow SQUARE D's generic installation instructions for NEMA enclosures to maintain proper sealing and safety.

Used in

Common applications for SQUARE D
Commercial building electrical panels — Square D QO series plug-in circuit breakers for branch circuit protection
Industrial motor control centers — Square D QOB series bolt-on breakers in NQOD panelboards
Heating equipment installations — Square D QOU series unit-mount breakers for overcurrent protection
Outdoor electrical distribution — Square D L-Frame enclosures housing LAL/LHL breakers for 400 A service
Indoor facility power distribution — Square D Q-Frame enclosures with QBL/QDL breakers for 225 A circuits
Retrofit and replacement in existing Square D load centers — QO series breakers for 120/240V AC systems

SQUARE 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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Related products

More from SQUARE D

View all SQUARE D parts
SQUARE D Rotary Operating Handle: Rotary Op Handle, PowerPact(R) H and J Circuit Breakers, 2 Poles (MPN S29340)
SQUARE D
SQUARE D Rotary Operating Handle: Rotary Op Handle, PowerPact(R) H and J Circuit Breakers, 2 Poles (MPN S29340)
SQUARE D Handle Assembly: Handle Assembly, Type MEL, MXL, MAL, and MHL Circuit Breakers, 2/3 Poles (MPN 9421LT4)
SQUARE D
SQUARE D Handle Assembly: Handle Assembly, Type MEL, MXL, MAL, and MHL Circuit Breakers, 2/3 Poles (MPN 9421LT4)
SQUARE D Rotary Operator: Rotary Operator, 125 A Amps, 3 Poles, 6 in Handle/Long Shaft (MPN 9421LB4)
SQUARE D
SQUARE D Rotary Operator: Rotary Operator, 125 A Amps, 3 Poles, 6 in Handle/Long Shaft (MPN 9421LB4)
SQUARE D Variable Depth Operating Mechanism: Variable Dp Op Mechanism, 125 A Amps (MPN 9422RB1)
SQUARE D
SQUARE D Variable Depth Operating Mechanism: Variable Dp Op Mechanism, 125 A Amps (MPN 9422RB1)
SQUARE D Handle Assembly: Handle Assembly, 2/3 Poles, 6 in Chrome-Plated Handle (MPN 9421LC46)
SQUARE D
SQUARE D Handle Assembly: Handle Assembly, 2/3 Poles, 6 in Chrome-Plated Handle (MPN 9421LC46)
SQUARE D Rotary Operating Handle: Rotary Op Handle, PowerPact(R) H and J Circuit Breakers (MPN S29343)
SQUARE D
SQUARE D Rotary Operating Handle: Rotary Op Handle, PowerPact(R) H and J Circuit Breakers (MPN S29343)
SQUARE D Open Door Shaft Operator: Open Door Shaft Operator, PowerPact(R) B Circuit Breakers (MPN LV426937)
SQUARE D
SQUARE D Open Door Shaft Operator: Open Door Shaft Operator, PowerPact(R) B Circuit Breakers (MPN LV426937)
SQUARE D Handle Assembly: Handle Assembly, Type KAL, KCL, and KHL Circuit Breakers, 2/3 Poles (MPN 9421LP1)
SQUARE D
SQUARE D Handle Assembly: Handle Assembly, Type KAL, KCL, and KHL Circuit Breakers, 2/3 Poles (MPN 9421LP1)