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40A
A21540CT | Circuit Breaker | 40A | 4-Pole | 240V | Plug-In
| Amperes | 40 |
| Poles | 4 |
| Voltage | 240 |
| Product Type | 40A |
Regular price
$510.00
Sale price
$510.00
Regular price
Unit price
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Seamless online shopping experience guaranteed with easy shipping and returns policy.
Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.
A21540CT | Circuit Breaker | 40A | 4-Pole | 240V | Plug-In
Regular price
$510.00
Sale price
$510.00
Regular price
Unit price
Product description
Shipping
Meet the A21540CT—an industrial-grade circuit breaker designed for durability, quick-service replacement, and reliable protection in 240V systems. With a 40A rating and a 4-pole plug-in design, this unit is built for demanding maintenance, retrofit, and replacement tasks in modern electrical panels.
Key specifications
- Amperage: 40A
- Poles: 4-Pole
- Voltage: 240V
- Configuration: Plug-In
Why this model stands out
The A21540CT combines robust construction with a plug-in form factor, enabling fast, field-ready swaps that minimize downtime. A 4-pole design is ideal for three-phase, four-wire distributions, ensuring effective protection across all conductors and simplifying the installation in compatible panels. This isn’t a generic replacement—it's a purpose-built solution designed to fit panels that require exact A21540CT specifications.
Ideal use cases
- Maintenance and downtime reductions in industrial environments
- Retrofit projects where existing equipment or panels require a precise 40A, 4-pole 240V plug-in breaker
- Replacement for aging or failed breakers in 3-phase, 4-wire electrical systems
- Panel upgrades or service upgrades that demand a consistent part number reference for compatibility
Choosing and installing with confidence
Compatibility starts with the part number. The A21540CT should be matched exactly to your panel’s requirements, as this is the most reliable reference for fit and ratings. Before you order, confirm that your setup demands a 40A, 4-pole, 240V plug-in breaker, and that your enclosure is designed to accept this model. If you’re upgrading from a different format, ensure the newer unit aligns with your panel’s bus configuration and protection scheme to maintain safe, code-compliant operation.
Specifications at a glance
- Part number: A21540CT
- Amperage: 40A
- Poles: 4-Pole
- Voltage: 240V
- Type: Plug-In
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What Our Customers Say
General feedback we often hear from customers purchasing industrial electrical parts.
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Good communication and clear updates while the order was processed.
Project · Coordination
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Looks and feels like a proper industrial-grade part. Works as expected.
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