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Siemens Miniature Circuit Breaker: 1 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 A Amps, 125V DC, 10kA at 277/480V AC, Screw Clamp

The SIEMENS IEC Miniature Circuit Breaker (SKU 30YC70, MPN 5SJ42017HG42) is a 1 Amp, 2-pole C-Curve UL489 DIN rail-mount unit. It is rated for 10kA at 277/480V AC and 125V DC, with screw clamp terminals.

SKU 3G-OTH-21193

Brand
Siemens
Item
Miniature Circuit Breaker: 1 A Amps, 125V DC, 10kA at 277/480V AC, Screw Clamp
Category
C-Curve, 2-Pole UL489 DIN Rail-Mount Miniature Circuit Breakers
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Technical Specifications

Siemens
Manufacturer Part Number
5SJ42017HG42
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

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

Product Description

The SIEMENS IEC Miniature Circuit Breaker (SKU 30YC70, MPN 5SJ42017HG42) is a 1 Amp, 2-pole C-Curve UL489 DIN rail-mount unit. It is rated for 10kA at 277/480V AC and 125V DC, with screw clamp terminals.

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 5SJ42017HG42 miniature circuit breaker used for?

This SIEMENS IEC miniature circuit breaker is used for overcurrent protection in industrial control panels, lighting circuits, and motor branch circuits. Its 1 A rating and C-Curve trip characteristic suit moderate inrush loads, while the 125V DC rating supports DC control circuits and battery-backed systems.

What are the specifications of the SIEMENS 5SJ42017HG42 MCB?

The SIEMENS 5SJ42017HG42 is a 1 A, 2-pole C-Curve UL489 miniature circuit breaker. It has a max. AIR rating of 10kA at 277/480V AC and a DC voltage rating of 125V DC. Terminal connection is screw clamp. It mounts on a DIN rail and is part of the 5SJ4 series.

Where to buy the SIEMENS 5SJ42017HG42 worldwide?

You can source the SIEMENS 5SJ42017HG42 miniature circuit breaker through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this 1 A, 2-pole C-Curve MCB.

How to install the SIEMENS 5SJ42017HG42 on a DIN rail?

To install this SIEMENS MCB, snap it onto a standard 35 mm DIN rail until the latch engages. Use a screwdriver to tighten the screw clamp terminals to the recommended torque (typically 2–2.5 Nm). Ensure the circuit is de-energized before installation and follow local electrical codes.

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.

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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.