5SY4 Miniature Circuit Breakers

Siemens 5SY4 Miniature Circuit Breakers provide safe short-circuit and overload protection for industrial applications. Siemens 5SY Miniature Circuit Breakers are available in 1-, 2-, 3-, 4-, 1+N, and 3+N-pole versions and are designed for rated currents from 0.3A to 80A at rated switching capacities of 6kA, 10kA, and 15kA. 5SY4 protects circuits of air-conditioning and ventilation systems, control cabinets, and controllers from the consequences of short-circuit and overload events.

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Qty. RoHS ECAD Model Series
Product
Type
Current Rating
Voltage Rating AC
Voltage Rating DC
Number of Poles
Actuator Type
Minimum Operating Temperature
Maximum Operating Temperature
Illuminated
Siemens Circuit Breakers SUP PTOR 5SY4 3P 480V 30A 5K C-TRIP
Datasheet
5In Stock
Min.: 1
Mult.: 1
Circuit Breakers Miniature 30 A 400 VAC 60 VDC 3 Pole Lever - 40 C + 70 C Non-Illuminated
Siemens Circuit Breakers SUP PTOR 5SY4 3P 480V 32A 5K C-TRIP
Datasheet
10In Stock
Min.: 1
Mult.: 1
Circuit Breakers Miniature 32 A 400 VAC 60 VDC 3 Pole Lever - 40 C + 70 C Non-Illuminated
Siemens Circuit Breakers SUP PTOR 5SY4 3P 480V 35A 5K C-TRIP
Datasheet
1In Stock
2Expected 14/08/2026
Min.: 1
Mult.: 1
Circuit Breakers Miniature 35 A 400 VAC 60 VDC 3 Pole Lever - 40 C + 70 C Non-Illuminated
Siemens Circuit Breakers SUP PTOR 5SY4 3P 480V 40A 5K C-TRIP
Datasheet
3In Stock
2Expected 10/08/2026
Min.: 1
Mult.: 1
Circuit Breakers Miniature 40 A 400 VAC 60 VDC 3 Pole Lever - 40 C + 70 C Non-Illuminated
Siemens Circuit Breakers SUP PTOR 5SY4 3P 480V 40A 5K D-TRIP
Datasheet
4In Stock
Min.: 1
Mult.: 1
Circuit Breakers Miniature 40 A 400 VAC 60 VDC 3 Pole Lever - 40 C + 70 C Non-Illuminated
Siemens Circuit Breakers SUP PTOR 5SY4 3P 480V 50A 5K D-TRIP
Datasheet
5In Stock
Min.: 1
Mult.: 1
Circuit Breakers Miniature 50 A 400 VAC 60 VDC 3 Pole Lever - 40 C + 70 C Non-Illuminated
Siemens Circuit Breakers SUP PTOR 5SY4 3P 480V 63A 5K D-TRIP
Datasheet
3In Stock
Min.: 1
Mult.: 1
Circuit Breakers Miniature 63 A 400 VAC 60 VDC 3 Pole Lever - 40 C + 70 C Non-Illuminated
Siemens Circuit Breakers SUP PTOR 5SY4 4P 480V 10A 5K C-TRIP
Datasheet
1In Stock
Min.: 1
Mult.: 1
Circuit Breakers Miniature 10 A 400 VAC 60 VDC 4 Pole Lever - 40 C + 70 C Non-Illuminated
Siemens Circuit Breakers SUP PTOR 5SY4 4P 480V 16A 5K C-TRIP
Datasheet
2In Stock
Min.: 1
Mult.: 1
Circuit Breakers Miniature 16 A 400 VAC 60 VDC 4 Pole Lever - 40 C + 70 C Non-Illuminated
Siemens Circuit Breakers SUP PTOR 5SY4 1P+N 240V 6A 7.5K C-TRIP
Datasheet
4In Stock
Min.: 1
Mult.: 1
Circuit Breakers Miniature 6 A 230 VAC 60 VDC 2 Pole Lever - 40 C + 70 C Non-Illuminated
Siemens Circuit Breakers SUP PTOR 5SY4 1P+N 240V 6A 7.5K D-TRIP
Datasheet
5In Stock
Min.: 1
Mult.: 1
Circuit Breakers Miniature 6 A 230 VAC 60 VDC 2 Pole Lever - 40 C + 70 C Non-Illuminated
Siemens Circuit Breakers SUP PTOR 5SY4 1P+N 240V 10A 7.5K C-TRI
Datasheet
4In Stock
Min.: 1
Mult.: 1
Circuit Breakers Miniature 10 A 230 VAC 60 VDC 2 Pole Lever - 40 C + 70 C Non-Illuminated
Siemens Circuit Breakers MSP 1P+N 240V 16A 7.5K C-TRIP
Datasheet
4In Stock
Min.: 1
Mult.: 1
Circuit Breakers Miniature 16 A 230 VAC 60 VDC 2 Pole Lever - 40 C + 70 C Non-Illuminated
Siemens Circuit Breakers SUP PTOR 5SY4 1P+N 240V 20A 7.5K C-TRIP
Datasheet
2In Stock
Min.: 1
Mult.: 1
Circuit Breakers Miniature 20 A 230 VAC 60 VDC 2 Pole Lever - 40 C + 70 C Non-Illuminated
Siemens Circuit Breakers SUP PTOR 5SY4 3P+N 480V 16A 5K C-TRIP
Datasheet
2In Stock
Min.: 1
Mult.: 1
Circuit Breakers Miniature 16 A 400 VAC 60 VDC 4 Pole Lever - 40 C + 70 C Non-Illuminated
Siemens Circuit Breakers SUP PTOR 5SY4 2P 480V 3A 5K D-TRIP
Datasheet
5Expected 10/08/2026
Min.: 1
Mult.: 1
Circuit Breakers Miniature 3 A 400 VAC 60 VDC 2 Pole Lever - 40 C + 70 C Non-Illuminated
Siemens Circuit Breakers SUP PTOR 5SY4 2P 480V 40A 5K C-TRIP
Datasheet
5Expected 24/09/2026
Min.: 1
Mult.: 1
Circuit Breakers Miniature 40 A 400 VAC 60 VDC 2 Pole Lever - 40 C + 70 C Non-Illuminated
Siemens Circuit Breakers SUP PTOR 5SY4 1P 240V 1A 7.5K A-TRIP
Datasheet
Non-Stocked Lead-Time 6 Weeks
Min.: 1
Mult.: 1
Circuit Breakers Miniature 1 A 400 VAC 60 VDC 1 Pole Lever - 40 C + 70 C Non-Illuminated
Siemens Circuit Breakers SUP PTOR 5SY4 1P 240V 3A 7.5K A-TRIP
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 1
Mult.: 1
Circuit Breakers Miniature 3 A 400 VAC 60 VDC 1 Pole Lever - 40 C + 70 C Non-Illuminated
Siemens Circuit Breakers SUP PTOR 5SY4 1P 240V 3A 7.5K D-TRIP
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 1
Mult.: 1
Circuit Breakers Miniature 3 A 400 VAC 60 VDC 1 Pole Lever - 40 C + 70 C Non-Illuminated
Siemens Circuit Breakers SUP PTOR 5SY4 1P 240V 4A 7.5K A-TRIP
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 1
Mult.: 1
Circuit Breakers Miniature 4 A 400 VAC 60 VDC 1 Pole Lever - 40 C + 70 C Non-Illuminated
Siemens Circuit Breakers SUP PTOR 5SY4 1P 240V 4A 7.5K B-TRIP
Datasheet
Non-Stocked Lead-Time 6 Weeks
Min.: 1
Mult.: 1
Circuit Breakers Miniature 4 A 400 VAC 60 VDC 1 Pole Lever - 40 C + 70 C Non-Illuminated
Siemens Circuit Breakers SUP PTOR 5SY4 1P 240V 4A 7.5K D-TRIP
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 1
Mult.: 1
Circuit Breakers Miniature 4 A 400 VAC 60 VDC 1 Pole Lever - 40 C + 70 C Non-Illuminated
Siemens Circuit Breakers SUP PTOR 5SY4 1P 240V 0.5A 7.5K D-TRIP
Datasheet
Non-Stocked Lead-Time 6 Weeks
Min.: 1
Mult.: 1
Circuit Breakers Miniature 500 mA 400 VAC 1 Pole Lever - 40 C + 70 C Non-Illuminated
Siemens Circuit Breakers SUP PTOR 5SY4 1P 240V 6A 7.5K A-TRIP
Datasheet
Non-Stocked Lead-Time 3 Weeks
Min.: 1
Mult.: 1
Circuit Breakers Miniature 6 A 400 VAC 60 VDC 1 Pole Lever - 40 C + 70 C Non-Illuminated