Circuit Breaker, 5SY4 Series, 40A, 3+N Pole, 400V AC, 10kA at 400V AC, A Curve MPN:5SY46405
Circuit Breaker, 5SY4 Series, 40A, 3+N Pole, 400V AC, 10kA at 400V AC, A Curve
Protect your industrial circuits with the reliable 5SY4 Series Circuit Breaker from Siemens. This 3+N pole breaker is designed to handle 40A at 400V AC, with a maximum short circuit current of 10kA at 400V AC. Its A curve type provides fast and reliable tripping in the event of an overload or short circuit. Suitable for industrial applications, this circuit breaker meets UL Type UL 1077 and features a toggle actuator and screw clamp terminals. With a compact design and easy installation on DIN rail, it's the perfect solution for protecting your industrial circuits and ensuring safe and efficient operation.
Top product features:
- Protects against overcurrents with a 40A rating
- Interrupts power supply in case of a short circuit with a 10kA at 400V AC rating
- Features a thermal magnetic trip type for reliable protection against overheating and magnetic faults
Top product applications:
- Industrial
- Circuit Breaker Actuator Toggle
- DIN Rail Mounting Style
IEC Supplementary Protector, Amps 40 A, AC Voltage Rating 400V AC, Max. AIR Rating 10kA at 400V AC, Series 5SY4, Curve Type A, DC Voltage Rating 72V DC, Number of Poles 3+N, 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 3.74 in, Width 2.95 in, Depth 3.26 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 February 16, 2026 5:48am UTC
Category: Circuit Protection