Verified
Solid quality component. Exactly as described on the product page.
Maintenance team · Ontario
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Siemens 3NP-437 - 400A, Fusible, Disconnect Switch
★★★★★
Regular price
$795.00
Sale price
$795.00
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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.
Siemens 3NP-437 - 400A, Fusible, Disconnect Switch
Product description
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Meet the Siemens 3NP-437, a 400A fusible disconnect switch built for harsh industrial and commercial environments. It combines reliable on/off isolation with overcurrent protection, delivering a concise, field-serviceable solution for motor disconnects, panelboards, and branch circuits.
Key features
- Model: 3NP-437
- Amperage rating: 400A
- Protection type: Fusible (fused disconnect for overcurrent protection)
- Functionality: Instant on/off isolation with integrated overcurrent protection
- Design: Compact, maintainable construction designed for quick fuse replacement and serviceability
- Ideal for: Motor disconnects, panelboards, and branch circuit protection
Best uses and applications
- Motor-driven equipment where safe isolation and rapid fault clearing are essential, such as pumps, conveyors, compressors, and fans
- Panelboard installations needing a single, reliable fusible disconnect in a compact footprint
- Branch-circuit protection in commercial facilities and light-to-medium industrial setups
Why the 3NP-437 helps you work smarter
The fusible design delivers selectivity and protection in one compact device, simplifying wiring layouts and minimizing panel space requirements. When a fault occurs, the integrated fuse elements interrupt current before damage propagates, helping safeguard downstream equipment. And when maintenance is required, fuse replacement is straightforward, reducing downtime and keeping processes running smoothly.
Specifications at a glance
- Amperage: 400A
- Protection: Fusible (fused disconnect switch)
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What Our Customers Say
General feedback we often hear from customers purchasing industrial electrical parts.
Verified
Packaging was secure and the item arrived clean and ready for installation.
Electrical contractor · GTA
Verified
We’ve used this type on multiple jobs and it’s been reliable so far.
Panel shop · Canada/US
