myMectronic
myMectronic

A Premier B2B Part Search

SIEMENS 5SJ42018HG42 Mini Circuit Breaker

Siemens 5SJ4201-8HG42 Mini Circuit Breaker is a UL 489 approved, two-pole device rated for 1 Amp, with voltage ratings of 480VAC and 277VAC, and supporting 60VDC and 125VDC. It features a D-type trip curve and a 10kA rated interrupting capacity, suitable for residential or commercial electrical protection.

Authorized Distributors
Source:DigiKey
Part No:5SJ42018HG42
Stock:20
Inv Date:05-29-2026
Price: Unit price: $182.62
Buy/RFQ:
Part No:5SJ42018HG42
Stock:3
Inv Date:05-30-2026
Price: Unit price: $179.53
Buy/RFQ:
Part No:5SJ4201-8HG42
Stock:4
Inv Date:05-29-2026
Price: Unit price: $177
Buy/RFQ:

SIEMENS 5SJ42018HG42 Mini Circuit Breaker Specifications:

  • Poles: 2-pole
  • Rated Current: 1A
  • Rated Voltage: 480VAC, 277VAC, 60VDC, 125VDC
  • Interrupting Capacity: 10kA (UL 489)
  • Trip Characteristic: D
  • Operating Voltage Min: 24 VAC/DC
  • Operating Voltage Max: 440VAC
  • Conductor Cross Sections: 14 to 50 mm² (AWG 14-4)
  • Terminal Tightening Torque: 3.3 Nm
  • Device Depth: 70 mm
  • Standards: UL 489, CSA 22.2 No. 5-02
  • Certifications: CE, UL Recognized
  • Mounting: DIN Rail (35 mm)
  • Material: Copper terminals, polycarbonate housing
  • Weight: 0.310 kg

Buy the Siemens 5SJ4201-8HG42 – Reliable Control Circuit Protection for Industrial Applications

Purchase the Siemens Mini Circuit Breaker 5SJ4201-8HG42 online for reliable control circuit protection. Designed for high switching capacity and long-lasting service, it is ideal for residential, commercial, and industrial electrical systems. Easy to install with DIN rail mounting, it offers high interrupting ratings up to 10,000 amps and supports a range of voltages from 24 VAC/DC to 480 VAC. Safeguard your electrical setup effortlessly with this UL and CSA certified device, ensuring compliance and safety.

Get Siemens 5SJ4201-8HG42 today—built for durable control circuit protection in industrial and commercial environments.

Frequently Asked Questions

Where can I buy SIEMENS 5SJ42018HG42?

You can click on the BUY or RFQ button to purchase 5SJ42018HG42 from an authorized SIEMENS distributor.

How do I troubleshoot issues or seek technical support for part 5SJ42018HG42?

You can download the 5SJ42018HG42 datasheet or visit the SIEMENS website for support.

Who is the manufacturer of 5SJ42018HG42?

SIEMENS

SIEMENS Part List

Browse and search other SIEMENS parts, locate datasheets and stock

Sponsored by