5SY63407 – Siemens 40A 3-Pole Miniature Circuit Breaker, C-Curve, 400V

5SY63407

The Siemens 5SY63407 is a rugged 3-pole miniature circuit breaker from the trusted Sentron 5SY6 Series, designed for reliable overload and short-circuit protection in commercial and industrial applications. Rated for 40 amps and 400V AC, this breaker features a C-curve tripping characteristic and a 6kA interrupting capacity for dependable circuit protection. Its 70mm installation depth and DIN-rail mounting make it an ideal fit for compact control panels and distribution systems. Built with touch-safe terminals, halogen-free materials, and durable Siemens construction, the 5SY63407 delivers long-lasting performance and safety in demanding electrical environments. At Essential Parts, we carry the 5SY63407 with fast shipping, competitive pricing, and dedicated expert support — ensuring you get the right protection solution when you need it. Designed to protect branch circuits and auxiliary panels, it features a 70 mm installation depth, DIN rail / snap-on mounting, and support for conductors from 0.75 to 35 mm². Ideal for commercial and industrial electrical protection applications. Key Specifications:

• Part Number: 5SY63407
• Manufacturer: Siemens / Sentron
• Type: Miniature Circuit Breaker (MCB)
• Current Rating: 40 A
• Poles: 3-Pole
• Trip Curve: C-Curve
• Voltage: 400 V AC
• Interrupting Capacity: 6 kA
• Installation Depth: 70 mm
• Conductor Range: 0.75 – 35 mm²
• Protection Class: IP20 (with conductors installed)

Specifications

• Part Number: 5SY63407
• Brand : Siemens

Product Data

• UPC : 075455494269
• GTIN : 00754554942698
• Country of Origin : Germany
• Dimensions : 3.701 x 2.283 x 3.307 inch
• Weight : 1.023 lb