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Siemens 5SY41206 single-pole DIN-rail breaker, grey toggle, screw-clamp terminals

SIEMENS

SIEMENS 5SY41206 Circuit Breaker 20A 1P 230/400V AC 10kA

SKU CH-SWF5-KSNAW

A 20 A single-pole circuit breaker rated 230/400 V AC with 10 kA interrupting capacity for DIN-rail mounting in industrial panels

  • Brand nameSIEMENS
  • Rated 20 A for reliable single-phase circuit protection
  • 10 kA interrupting capacity handles high fault currents safely
  • Thermal-magnetic trip curve B responds quickly to overloads and shorts
  • Screw-clamp terminals accept 14 to 4 AWG wire for secure connections
  • Compact DIN-rail design measures 3.54 by 0.69 by 3.01 inches

Siemens 5SY41206 20A Single-Pole Circuit Breaker

This Siemens 5SY41206 is a single-pole circuit breaker rated 20 A at 230/400 V AC with a 10 kA interrupting rating. It uses a thermal-magnetic trip mechanism and mounts on a standard DIN rail via screw-clamp terminals. The unit is UL 1077 listed and suits industrial control panels.

Suits 20 A industrial circuits; not for higher loads

Builders protecting 20 A single-phase loads in industrial panels will find this breaker matches the required current and voltage ratings. Installations needing multi-pole protection, higher interrupting capacity, or a different trip curve should select an alternative device.

20 A / 10 kA at 230/400 V AC rating

The decisive specification is the 20 A continuous current combined with a 10 kA short-circuit rating at 230/400 V AC. This pairing determines whether the breaker can safely interrupt faults on the intended circuit without nuisance tripping.

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Price $33.99
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Specifications

Product
Brand nameSIEMENS

Questions about this item

Should I choose the 20 A version or a different rating for my circuit?

The 20 A rating matches circuits designed for 20 A protection; select a different rating only if your circuit requires another amperage.

What does the 10 kA rating mean when the breaker is installed?

It indicates the breaker can safely interrupt up to 10 kA of fault current at 230/400 V AC.

Which standard does the UL 1077 listing cover for this supplementary protector?

UL 1077 covers supplementary protectors for use in industrial equipment, not branch-circuit protection.

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