We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Siemens 5SJ41157HG40 1.6 A C-curve DIN rail circuit breaker, light grey plastic housing, screw terminals, compact single-pole module

SIEMENS

SIEMENS 5SJ41157HG40 1.6 A C-curve DIN rail circuit breaker 240V AC

SKU CH-SAPQ-Q3JVX

Single-pole thermal-magnetic breaker rated 1.6 A, C-curve, 240 V AC with 14 kA interrupting capacity for DIN-rail branch-circuit protection

  • 6 A C-curve protects branch circuits reliably
  • 14 kA interrupting capacity clears heavy faults safely
  • Single-pole 240 V AC / 60 V DC fits mixed-voltage panels
  • DIN-rail mount with screw-clamp terminals speeds installation
  • UL 489 listed for industrial branch-circuit protection

IEC miniature circuit breaker for branch protection

The SIEMENS 5SJ41157HG40 is a single-pole IEC miniature circuit breaker rated at 1.6 A with a C-curve thermal-magnetic trip. It is intended for branch circuit protection in industrial panels and control cabinets where DIN rail mounting is standard.

240 V AC rating and 14 kA interrupting capacity

The device carries a 240 V AC voltage rating and a maximum AIR rating of 14 kA at that voltage, meeting UL 489 requirements for branch circuit use. A 60 V DC rating is also provided, but the 14 kA interrupting figure applies only to the AC rating.

Screw-clamp terminals accept 14 to 4 AWG wire

The screw-clamp terminal connection accepts conductors from 14 AWG up to 4 AWG, simplifying wiring for a range of branch circuit sizes. The 63 A frame size and compact 3.54 in by 0.71 in by 2.75 in profile allow dense side-by-side mounting on standard DIN rail without special clearance.

How it compares

Measured against everything we stock in Breakers & Circuit Protection, at today’s prices. Recalculated every night.

Price $52.99
Typical for this category: the median of 1,135 items is $54.99.

Specifications

Product
Brand nameSIEMENS

Questions about this item

Should I choose the 1.6 A C-curve model or a different rating for my branch circuit?

Select the 1.6 A C-curve version when your branch circuit requires that exact trip current and magnetic characteristic; other ratings in the 5SJ4 series cover different ampacities and curve types.

What does the 14 kA interrupting rating mean once the breaker is installed in a panel?

It means the device can safely clear a short-circuit fault of up to 14 kA at 240 V AC without damage, protecting downstream wiring and equipment.

How does the DIN rail mounting and screw-clamp terminal interface limit the wire sizes I can use?

The screw-clamp terminals accept conductors from 14 AWG up to 4 AWG, so any wire outside that range cannot be securely terminated on this breaker.

More in Breakers & Circuit Protection

Similar items