We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

3G Electric
RFQ CartGet a QuoteSign inSign up
Siemens Miniature Circuit Breaker: 1.6 A Amps, 125V DC, 10kA at 277/480V AC, Screw Clamp - C-Curve, 2-Pole UL489 DIN Rail-Mount Miniature Circuit Breakers
SiemensC-Curve, 2-Pole UL489 DIN Rail-Mount Miniature Circuit Breakers

Siemens Miniature Circuit Breaker: 1.6 A Amps, 125V DC, 10kA at 277/480V AC, Screw Clamp

The SIEMENS IEC Miniature Circuit Breaker (SKU 30YC79, MPN 5SJ42157HG42) is a C-Curve, 2-Pole UL489 DIN Rail-Mount miniature circuit breaker rated at 1.6 A. It features a Max. AIR Rating of 10kA at 277/480V AC, AC…

SKU 3G-OTH-20274

Brand
Siemens
Item
Miniature Circuit Breaker: 1.6 A Amps, 125V DC, 10kA at 277/480V AC, Screw Clamp
Category
C-Curve, 2-Pole UL489 DIN Rail-Mount Miniature Circuit Breakers
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

Siemens
Manufacturer Part Number
5SJ42157HG42
Type
10kA at 277/480V AC, Screw Clamp, 5SJ4
DC
125V
Max. AIR Rating
10kA at 277/480V AC
AC Voltage Rating
277/480V AC
DC Voltage Rating
125V DC
Terminal Connection
Screw Clamp
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SIEMENS IEC Miniature Circuit Breaker (SKU 30YC79, MPN 5SJ42157HG42) is a C-Curve, 2-Pole UL489 DIN Rail-Mount miniature circuit breaker rated at 1.6 A. It features a Max. AIR Rating of 10kA at 277/480V AC, AC Voltage Rating of 277/480V AC, and DC Voltage Rating of 125V DC, with a Screw Clamp terminal connection.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the SIEMENS 5SJ42157HG42 miniature circuit breaker used for?

This SIEMENS C-Curve 2-pole UL489 miniature circuit breaker protects branch circuits in industrial control panels and distribution boards. It handles 1.6 A loads at 277/480V AC or 125V DC, with a 10kA interrupting rating. 3G Electric supplies this 5SJ4 series breaker for global industrial applications.

What are the specifications of the SIEMENS 5SJ42157HG42?

The SIEMENS 5SJ42157HG42 is a 1.6 A, 2-pole C-Curve miniature circuit breaker. It has a max AIR rating of 10kA at 277/480V AC, AC voltage rating of 277/480V AC, DC voltage rating of 125V DC, and screw clamp terminals. It is UL489 listed for DIN rail mounting.

Where to buy the SIEMENS 5SJ42157HG42 worldwide?

3G Electric supplies the SIEMENS 5SJ42157HG42 miniature circuit breaker to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this 1.6 A, 2-pole UL489 breaker.

How to select the right SIEMENS miniature circuit breaker for a DC application?

For DC applications, verify the breaker's DC voltage rating matches your system voltage. The SIEMENS 5SJ42157HG42 is rated for 125V DC. Also confirm the current rating (1.6 A) and trip curve (C-Curve for moderate inrush). 3G Electric can help you source the correct SIEMENS breaker for your needs.

Used in

Common applications for Siemens
District cooling plants — LME73 + RWF55 for condenser-water modulation
Inflight catering and food-processing steam boilers — LMG22 with SQN90 air-fuel cross-damper
Hospital steam-plant redundancy — LME41 with QRA2 UV flame detection for dual-fuel boilers
Semiconductor fab process heat — LME23 and SKP55 gas valves on hot-oil heater skids
Container-terminal reefer-deck heating — LMG22 retrofit onto legacy burner racks

Siemens Products

3G Electric supplies Siemens c-curve, 2-pole ul489 din rail-mount miniature circuit breakers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
SIEMENS IEC Miniature Circuit Breaker: 0.5 A Amps, 125V DC, 10kA at 277/480V AC, Screw Clamp, 5SJ4 (MPN 5SJ42057HG42). Key specifications — DC Voltage Rating: 125V DC; Brand: SIEMENS; Max. AIR Rating: 10kA at 277/480V AC; Terminal Connection: Screw Clamp; AC Voltage Rating: 277/480V AC.
Siemens
SIEMENS IEC Miniature Circuit Breaker: 0.5 A Amps, 125V DC, 10kA at 277/480V AC, Screw Clamp, 5SJ4 (MPN 5SJ42057HG42). Key specifications — DC Voltage Rating: 125V DC; Brand: SIEMENS; Max. AIR Rating: 10kA at 277/480V AC; Terminal Connection: Screw Clamp; AC Voltage Rating: 277/480V AC.
SIEMENS IEC Miniature Circuit Breaker: 5 A Amps, 125V DC, 10kA at 277/480V AC, Screw Clamp, 5SJ4 (MPN 5SJ42117HG42). Key specifications — DC Voltage Rating: 125V DC; Brand: SIEMENS; Max. AIR Rating: 10kA at 277/480V AC; Terminal Connection: Screw Clamp; AC Voltage Rating: 277/480V AC.
Siemens
SIEMENS IEC Miniature Circuit Breaker: 5 A Amps, 125V DC, 10kA at 277/480V AC, Screw Clamp, 5SJ4 (MPN 5SJ42117HG42). Key specifications — DC Voltage Rating: 125V DC; Brand: SIEMENS; Max. AIR Rating: 10kA at 277/480V AC; Terminal Connection: Screw Clamp; AC Voltage Rating: 277/480V AC.
SIEMENS IEC Miniature Circuit Breaker: 0.03 A Amps, 125V DC, 10kA at 277/480V AC, Screw Clamp, 5SJ4 (MPN 5SJ42147HG42). Key specifications — DC Voltage Rating: 125V DC; Brand: SIEMENS; Max. AIR Rating: 10kA at 277/480V AC; Terminal Connection: Screw Clamp; AC Voltage Rating: 277/480V AC.
Siemens
SIEMENS IEC Miniature Circuit Breaker: 0.03 A Amps, 125V DC, 10kA at 277/480V AC, Screw Clamp, 5SJ4 (MPN 5SJ42147HG42). Key specifications — DC Voltage Rating: 125V DC; Brand: SIEMENS; Max. AIR Rating: 10kA at 277/480V AC; Terminal Connection: Screw Clamp; AC Voltage Rating: 277/480V AC.
SIEMENS IEC Miniature Circuit Breaker: 10 A Amps, 125V DC, 10kA at 277/480V AC, Screw Clamp, 5SJ4 (MPN 5SJ42107HG42). Key specifications — DC Voltage Rating: 125V DC; Brand: SIEMENS; Max. AIR Rating: 10kA at 277/480V AC; Terminal Connection: Screw Clamp; AC Voltage Rating: 277/480V AC.
Siemens
SIEMENS IEC Miniature Circuit Breaker: 10 A Amps, 125V DC, 10kA at 277/480V AC, Screw Clamp, 5SJ4 (MPN 5SJ42107HG42). Key specifications — DC Voltage Rating: 125V DC; Brand: SIEMENS; Max. AIR Rating: 10kA at 277/480V AC; Terminal Connection: Screw Clamp; AC Voltage Rating: 277/480V AC.
SIEMENS IEC Miniature Circuit Breaker: 13 A Amps, 125V DC, 10kA at 277/480V AC, Screw Clamp, 5SJ4 (MPN 5SJ42137HG42). Key specifications — DC Voltage Rating: 125V DC; Brand: SIEMENS; Max. AIR Rating: 10kA at 277/480V AC; Terminal Connection: Screw Clamp; AC Voltage Rating: 277/480V AC.
Siemens
SIEMENS IEC Miniature Circuit Breaker: 13 A Amps, 125V DC, 10kA at 277/480V AC, Screw Clamp, 5SJ4 (MPN 5SJ42137HG42). Key specifications — DC Voltage Rating: 125V DC; Brand: SIEMENS; Max. AIR Rating: 10kA at 277/480V AC; Terminal Connection: Screw Clamp; AC Voltage Rating: 277/480V AC.
SIEMENS IEC Miniature Circuit Breaker: 20 A Amps, 125V DC, 10kA at 277/480V AC, Screw Clamp, 5SJ4 (MPN 5SJ42207HG42). Key specifications — DC Voltage Rating: 125V DC; Brand: SIEMENS; Max. AIR Rating: 10kA at 277/480V AC; Terminal Connection: Screw Clamp; AC Voltage Rating: 277/480V AC.
Siemens
SIEMENS IEC Miniature Circuit Breaker: 20 A Amps, 125V DC, 10kA at 277/480V AC, Screw Clamp, 5SJ4 (MPN 5SJ42207HG42). Key specifications — DC Voltage Rating: 125V DC; Brand: SIEMENS; Max. AIR Rating: 10kA at 277/480V AC; Terminal Connection: Screw Clamp; AC Voltage Rating: 277/480V AC.

More from Siemens

View all Siemens parts →
SIEMENS IEC Miniature Circuit Breaker: 16 A Amps, 125V DC, 10kA at 277/480V AC, Screw Clamp, 5SJ4 (MPN 5SJ42167HG42). Key specifications — DC Voltage Rating: 125V DC; Brand: SIEMENS; Max. AIR Rating: 10kA at 277/480V AC; Terminal Connection: Screw Clamp; AC Voltage Rating: 277/480V AC.
Siemens
SIEMENS IEC Miniature Circuit Breaker: 16 A Amps, 125V DC, 10kA at 277/480V AC, Screw Clamp, 5SJ4 (MPN 5SJ42167HG42). Key specifications — DC Voltage Rating: 125V DC; Brand: SIEMENS; Max. AIR Rating: 10kA at 277/480V AC; Terminal Connection: Screw Clamp; AC Voltage Rating: 277/480V AC.
SIEMENS IEC Miniature Circuit Breaker: 35 A Amps, 125V DC, 10kA at 277/480V AC, Screw Clamp, 5SJ4 (MPN 5SJ42357HG42). Key specifications — DC Voltage Rating: 125V DC; Brand: SIEMENS; Max. AIR Rating: 10kA at 277/480V AC; Terminal Connection: Screw Clamp; AC Voltage Rating: 277/480V AC.
Siemens
SIEMENS IEC Miniature Circuit Breaker: 35 A Amps, 125V DC, 10kA at 277/480V AC, Screw Clamp, 5SJ4 (MPN 5SJ42357HG42). Key specifications — DC Voltage Rating: 125V DC; Brand: SIEMENS; Max. AIR Rating: 10kA at 277/480V AC; Terminal Connection: Screw Clamp; AC Voltage Rating: 277/480V AC.
SIEMENS Miniature Circuit Breaker: 60 A Amps, 60V DC, 10 kA, Screw Clamp, 5SJ4, 240V AC, AC/DC (MPN 5SJ42607HG41). Key specifications — DC Voltage Rating: 60V DC; Brand: SIEMENS; Max. AIR Rating: 10 kA; Terminal Connection: Screw Clamp; AC Voltage Rating: 240V AC.
Siemens
SIEMENS Miniature Circuit Breaker: 60 A Amps, 60V DC, 10 kA, Screw Clamp, 5SJ4, 240V AC, AC/DC (MPN 5SJ42607HG41). Key specifications — DC Voltage Rating: 60V DC; Brand: SIEMENS; Max. AIR Rating: 10 kA; Terminal Connection: Screw Clamp; AC Voltage Rating: 240V AC.
SIEMENS Miniature Circuit Breaker: 32 A Amps, 60V DC, 14 kA, Screw Clamp, 5SJ4, 240V AC, AC/DC (MPN 5SJ42327HG41). Key specifications — DC Voltage Rating: 60V DC; Brand: SIEMENS; Max. AIR Rating: 14 kA; Terminal Connection: Screw Clamp; AC Voltage Rating: 240V AC.
Siemens
SIEMENS Miniature Circuit Breaker: 32 A Amps, 60V DC, 14 kA, Screw Clamp, 5SJ4, 240V AC, AC/DC (MPN 5SJ42327HG41). Key specifications — DC Voltage Rating: 60V DC; Brand: SIEMENS; Max. AIR Rating: 14 kA; Terminal Connection: Screw Clamp; AC Voltage Rating: 240V AC.
SIEMENS IEC Miniature Circuit Breaker: 15 A Amps, 125V DC, 10kA at 277/480V AC, Screw Clamp, 5SJ4 (MPN 5SJ42187HG42). Key specifications — DC Voltage Rating: 125V DC; Brand: SIEMENS; Max. AIR Rating: 10kA at 277/480V AC; Terminal Connection: Screw Clamp; AC Voltage Rating: 277/480V AC; Series: 5SJ4.
Siemens
SIEMENS IEC Miniature Circuit Breaker: 15 A Amps, 125V DC, 10kA at 277/480V AC, Screw Clamp, 5SJ4 (MPN 5SJ42187HG42). Key specifications — DC Voltage Rating: 125V DC; Brand: SIEMENS; Max. AIR Rating: 10kA at 277/480V AC; Terminal Connection: Screw Clamp; AC Voltage Rating: 277/480V AC; Series: 5SJ4.
SIEMENS IEC Miniature Circuit Breaker: 3 A Amps, 125V DC, 10kA at 277/480V AC, Screw Clamp, 5SJ4 (MPN 5SJ42037HG42). Key specifications — DC Voltage Rating: 125V DC; Brand: SIEMENS; Max. AIR Rating: 10kA at 277/480V AC; Terminal Connection: Screw Clamp; AC Voltage Rating: 277/480V AC.
Siemens
SIEMENS IEC Miniature Circuit Breaker: 3 A Amps, 125V DC, 10kA at 277/480V AC, Screw Clamp, 5SJ4 (MPN 5SJ42037HG42). Key specifications — DC Voltage Rating: 125V DC; Brand: SIEMENS; Max. AIR Rating: 10kA at 277/480V AC; Terminal Connection: Screw Clamp; AC Voltage Rating: 277/480V AC.
SIEMENS IEC Miniature Circuit Breaker: 1 A Amps, 125V DC, 10kA at 277/480V AC, Screw Clamp, 5SJ4 (MPN 5SJ42017HG42). Key specifications — DC Voltage Rating: 125V DC; Brand: SIEMENS; Max. AIR Rating: 10kA at 277/480V AC; Terminal Connection: Screw Clamp; AC Voltage Rating: 277/480V AC.
Siemens
SIEMENS IEC Miniature Circuit Breaker: 1 A Amps, 125V DC, 10kA at 277/480V AC, Screw Clamp, 5SJ4 (MPN 5SJ42017HG42). Key specifications — DC Voltage Rating: 125V DC; Brand: SIEMENS; Max. AIR Rating: 10kA at 277/480V AC; Terminal Connection: Screw Clamp; AC Voltage Rating: 277/480V AC.
SIEMENS IEC Miniature Circuit Breaker: 32 A Amps, 125V DC, 10kA at 277/480V AC, Screw Clamp, 5SJ4 (MPN 5SJ42327HG42). Key specifications — DC Voltage Rating: 125V DC; Brand: SIEMENS; Max. AIR Rating: 10kA at 277/480V AC; Terminal Connection: Screw Clamp; AC Voltage Rating: 277/480V AC.
Siemens
SIEMENS IEC Miniature Circuit Breaker: 32 A Amps, 125V DC, 10kA at 277/480V AC, Screw Clamp, 5SJ4 (MPN 5SJ42327HG42). Key specifications — DC Voltage Rating: 125V DC; Brand: SIEMENS; Max. AIR Rating: 10kA at 277/480V AC; Terminal Connection: Screw Clamp; AC Voltage Rating: 277/480V AC.