Miniature Circuit Breaker, 5SJ4 Series, 0.3A, 2 Pole, 277/480V AC, 10kA, D Curve MPN:5SJ42148HG42
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In Stock
Free Shipping
In Stock
SKU
510-G7603574
Miniature Circuit Breaker, 5SJ4 Series, 0.3A, 2 Pole, 277/480V AC, 10kA, D Curve
Protect your commercial and industrial electrical systems with the reliable Siemens 5SJ4 Series Miniature Circuit Breaker. This 2-pole device has a 0.3A rating and can handle 277/480V AC, making it ideal for applications where high voltage is present. The D Curve configuration ensures fast and accurate tripping, while the thermal magnetic trip type provides reliable protection against overcurrent and short circuits. Suitable for use in commercial and industrial settings, this circuit breaker is UL 489 listed and meets CSA and EN standards, providing peace of mind for electrical professionals. Install with confidence in a variety of applications, including lighting, HVAC, and more.
Top product features:
- Protects against overcurrents with a thermal magnetic trip type
- Ratings for 277/480V AC and 60V DC voltage
- Has a maximum air rating of 10kA for high fault current protection
Top product applications:
- Commercial
- Industrial
- Residential
Miniature Circuit Breaker, Amps 0.3 A, Number of Poles 2, Curve Type D, AC Voltage Rating 277/480V AC, DC Voltage Rating 60V DC, Max. AIR Rating 10 kA, Terminal Connection Screw Clamp, Series 5SJ4, Trip Type Thermal Magnetic, Application Commercial, Industrial, Min. Wire Size 14 AWG, Max. Wire Size 4 AWG, Length 4.92 in, Width 1.57 in, Depth 3.3 in, Standards CSA C22.2 No. 5-02, EN60898, EN60947-2, UL 489 Listed
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: 4.90
- Package Width: 3.30
- Package Height: 1.50
- Package Weight: 0.75
Product info last updated on February 23, 2026 5:46pm UTC
Category: Circuit Protection