Circuit Breaker, 5SY4 Series, 40A, 4 Pole, 400V AC, 10kA at 400V AC, B Curve MPN:5SY44406
Circuit Breaker, 5SY4 Series, 40A, 4 Pole, 400V AC, 10kA at 400V AC, B Curve
Protect your industrial electrical systems with the Siemens 5SY4 Series Circuit Breaker, designed for high-performance and reliability. This 4-pole, 40A, 400V AC circuit breaker features a B Curve and 10kA at 400V AC maximum air rating, making it ideal for applications where high currents and fault currents are present. Suitable for use in industrial settings, it meets UL Type UL 1077 standards and offers thermal magnetic trip type and screw clamp terminal connections. With its compact design and DIN rail mounting style, this circuit breaker is perfect for a wide range of applications, including machinery and equipment protection.
Top product features:
- Protects against electrical overload and short circuits due to its thermal magnetic trip type
- Provides a high level of protection against electrical faults with its 10kA at 400V AC maximum air rating
- Can be mounted on a DIN rail and features a toggle actuator for easy circuit breaker operation
Top product applications:
- Industrial
- Circuit Breaker Actuator Toggle
- DIN Rail
IEC Supplementary Protector, Amps 40 A, AC Voltage Rating 400V AC, Max. AIR Rating 10kA at 400V AC, Series 5SY4, Curve Type B, DC Voltage Rating 72V DC, Number of Poles 4, Phase 3, Circuit Breaker Actuator Toggle, Circuit Breaker Mounting Style DIN Rail, Meets UL Type UL 1077, Terminal Connection Screw Clamp, Trip Type Thermal Magnetic, Application Industrial, Min. Wire Size 14 AWG, Max. Wire Size 4 AWG, Length 3.54 in, Width 2.77 in, Depth 3 in
Additional Information
- Country of Origin: DE
- Drop Ship Item: Yes
- Blind Ship Eligible: No
- LTL Freight Required: No
- Lead Time: Ships in 30 days
- Minimum Order Quantity: 1
- Unit of Measure: EA
- Package Length: 3.74
- Package Width: 2.95
- Package Height: 3.26
- Package Weight: 0.10
Product info last updated on March 26, 2026 4:09pm UTC
Category: Circuit Protection