Verified
Consistent quality. We’ve added similar items to our regular reorder list.
MRO · Reorder
Seamless online shopping experience guaranteed with easy shipping and returns policy.
Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.
Circuit Breaker
General Electric | THKM3900 | Circuit Breaker | 900A | 3-Pole | 600V
★★★★★
| Amperes | 900 |
| Poles | 3 |
| Voltage | 600 |
| Product Type | Circuit Breaker |
Regular price
$510.00
Sale price
$510.00
Regular price
Unit price
Save
Seamless online shopping experience guaranteed with easy shipping and returns policy.
Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.
General Electric | THKM3900 | Circuit Breaker | 900A | 3-Pole | 600V
Regular price
$510.00
Sale price
$510.00
Regular price
Unit price
Product description
Shipping
Meet the General Electric THKM3900 Circuit Breaker — a heavy-duty protection device designed for demanding industrial applications. With a 900A rating, 3-pole configuration, and a 600V operating limit, it’s built to safeguard power distribution with reliability you can depend on during maintenance, retrofit, and replacement projects.
This breaker is purpose-built for situations where exact specifications matter. The THKM3900 is the best reference for compatibility, so always verify the fit and ratings before ordering. This ensures a seamless swap into existing GE panels or systems that call for a 900A, 3-pole, 600V solution.
Core specifications
- Amperage: 900A
- Poles: 3-Pole
- Voltage: 600V
- Part number: THKM3900
- Applications: maintenance, retrofit, and replacement in compatible GE electrical panels
What makes this GE breaker stand out
Designed for robust performance in high-current circuits, the THKM3900 delivers dependable protection for main feeders and large equipment. Its three-pole arrangement provides comprehensive phase protection, helping to prevent cascading faults in demanding environments—from manufacturing floors to distribution centers.
Ideal use cases
- Replacing a failed 900A, 3-pole, 600V breaker in industrial control panels
- Retrofits where existing gear requires the THKM3900 specification for continued reliability
- Maintenance outages that demand a precise, compatible component to minimize downtime
Compatibility & installation tips
To ensure a worry-free installation, use the part number THKM3900 as the primary reference for compatibility. Always confirm fit and ratings against your panel’s documentation before ordering. Engage a qualified electrician for proper installation, and follow all panel manufacturer guidelines for torque, wiring, and safety procedures.
Practical considerations
- Assess whether your circuit loads align with a 900A, 3-pole, 600V breaker to avoid unnecessary upgrades
- Document the upgrade in your facility’s electrical records, noting the exact part number for future maintenance
Contact sales@ampstate.com
Shipping cost is based on weight. Just add products to your cart and use the Shipping Calculator to see the shipping price.
We want you to be 100% satisfied with your purchase.
What Our Customers Say
General feedback we often hear from customers purchasing industrial electrical parts.
Verified
Support is responsive when we have questions about fit or application.
Purchasing · Quick answers
Verified
A reliable choice when we need industrial parts on short notice.
Service · Urgent replacement
