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Circuit Protectors

95 items in 7,489 variations
*incl. VAT plus shipping costs
Item description
Total
Price list
Product type
Pin number
Tripping characteristics
Rated current
Rated Voltage
Rated voltage (DC)
Rated voltage (AC)
Assembly
Degree of protection (IP)
Version
5SY4520-8 Siemens Circuit Protectors
Circuit breaker, 2 pole, D Curve, 20 A, DIN rail, 5SY4520-8
Order No.:
 27H7339
Manufacturer:
 Siemens
Manufacturer SKU:
 5SY4520-8
Standard delivery time from the manufacturer is: 5 Weeks
Total Price: 69.59 € *
1 pcs.
69.5912 €
circuit breaker
2 pole
D
20 A
72 V
DIN rail
IP20
5SY4525-5 Siemens Circuit Protectors
Circuit breaker, 2 pole, A Curve, 25 A, DIN rail, 5SY4525-5
Order No.:
 27H7340
Manufacturer:
 Siemens
Manufacturer SKU:
 5SY4525-5
Standard delivery time from the manufacturer is: 5 Weeks
Total Price: 90.65 € *
1 pcs.
90.6542 €
circuit breaker
2 pole
A
25 A
72 V
DIN rail
IP20
5SY4525-6 Siemens Circuit Protectors
Circuit breaker, 2 pole, B Curve, 25 A, DIN rail, 5SY4525-6
Order No.:
 27H7341
Manufacturer:
 Siemens
Manufacturer SKU:
 5SY4525-6
Standard delivery time from the manufacturer is: 5 Weeks
Total Price: 45.59 € *
1 pcs.
45.5889 €
circuit breaker
2 pole
B
25 A
72 V
DIN rail
IP20
5SY4525-7 Siemens Circuit Protectors
Circuit breaker, 2 pole, C Curve, 25 A, DIN rail, 5SY4525-7
Order No.:
 27H7342
Manufacturer:
 Siemens
Manufacturer SKU:
 5SY4525-7
Standard delivery time from the manufacturer is: 5 Weeks
Total Price: 62.00 € *
1 pcs.
61.999 €
circuit breaker
2 pole
C
25 A
72 V
DIN rail
IP20
5SY4525-8 Siemens Circuit Protectors
Circuit breaker, 2 pole, D Curve, 25 A, DIN rail, 5SY4525-8
Order No.:
 27H7343
Manufacturer:
 Siemens
Manufacturer SKU:
 5SY4525-8
Standard delivery time from the manufacturer is: 5 Weeks
Total Price: 75.55 € *
1 pcs.
75.5531 €
circuit breaker
2 pole
D
25 A
72 V
DIN rail
IP20
5SY4532-5 Siemens Circuit Protectors
Circuit breaker, 2 pole, A Curve, 32 A, DIN rail, 5SY4532-5
Order No.:
 27H7344
Manufacturer:
 Siemens
Manufacturer SKU:
 5SY4532-5
Standard delivery time from the manufacturer is: 5 Weeks
Total Price: 98.29 € *
1 pcs.
98.294 €
circuit breaker
2 pole
A
32 A
72 V
DIN rail
IP20
5SY4532-6 Siemens Circuit Protectors
Circuit breaker, 2 pole, B Curve, 32 A, DIN rail, 5SY4532-6
Order No.:
 27H7345
Manufacturer:
 Siemens
Manufacturer SKU:
 5SY4532-6
Standard delivery time from the manufacturer is: 3 Weeks
Total Price: 52.67 € *
1 pcs.
52.6694 €
circuit breaker
2 pole
B
32 A
72 V
DIN rail
IP20
5SY4532-7 Siemens Circuit Protectors
Circuit breaker, 2 pole, C Curve, 32 A, DIN rail, 5SY4532-7
Order No.:
 27H7346
Manufacturer:
 Siemens
Manufacturer SKU:
 5SY4532-7
Standard delivery time from the manufacturer is: 3 Weeks
Total Price: 71.48 € *
1 pcs.
71.4833 €
circuit breaker
2 pole
C
32 A
72 V
DIN rail
IP20
5SY4532-8 Siemens Circuit Protectors
Circuit breaker, 2 pole, D Curve, 32 A, DIN rail, 5SY4532-8
Order No.:
 27H7347
Manufacturer:
 Siemens
Manufacturer SKU:
 5SY4532-8
Standard delivery time from the manufacturer is: 5 Weeks
Total Price: 87.20 € *
1 pcs.
87.2032 €
circuit breaker
2 pole
D
32 A
72 V
DIN rail
IP20
5SY4540-5 Siemens Circuit Protectors
Circuit breaker, 2 pole, A Curve, 40 A, DIN rail, 5SY4540-5
Order No.:
 27H7348
Manufacturer:
 Siemens
Manufacturer SKU:
 5SY4540-5
Standard delivery time from the manufacturer is: 5 Weeks
Total Price: 119.71 € *
1 pcs.
119.714 €
circuit breaker
2 pole
A
40 A
72 V
DIN rail
IP20
5SY4540-6 Siemens Circuit Protectors
Circuit breaker, 2 pole, B Curve, 40 A, DIN rail, 5SY4540-6
Order No.:
 27H7349
Manufacturer:
 Siemens
Manufacturer SKU:
 5SY4540-6
Standard delivery time from the manufacturer is: 5 Weeks
Total Price: 64.14 € *
1 pcs.
64.1410 €
circuit breaker
2 pole
B
40 A
72 V
DIN rail
IP20
5SY4540-7 Siemens Circuit Protectors
Circuit breaker, 2 pole, C Curve, 40 A, DIN rail, 5SY4540-7
Order No.:
 27H7350
Manufacturer:
 Siemens
Manufacturer SKU:
 5SY4540-7
Standard delivery time from the manufacturer is: 5 Weeks
Total Price: 87.20 € *
1 pcs.
87.2032 €
circuit breaker
2 pole
C
40 A
72 V
DIN rail
IP20
5SY4540-8 Siemens Circuit Protectors
Circuit breaker, 2 pole, D Curve, 40 A, DIN rail, 5SY4540-8
Order No.:
 27H7351
Manufacturer:
 Siemens
Manufacturer SKU:
 5SY4540-8
Standard delivery time from the manufacturer is: 5 Weeks
Total Price: 99.76 € *
1 pcs.
99.7577 €
circuit breaker
2 pole
D
40 A
72 V
DIN rail
IP20
5SY4550-5 Siemens Circuit Protectors
Circuit breaker, 2 pole, A Curve, 50 A, DIN rail, 5SY4550-5
Order No.:
 27H7352
Manufacturer:
 Siemens
Manufacturer SKU:
 5SY4550-5
Standard delivery time from the manufacturer is: 5 Weeks
Total Price: 148.89 € *
1 pcs.
148.8928 €
circuit breaker
2 pole
A
50 A
72 V
DIN rail
IP20
5SY4550-6 Siemens Circuit Protectors
Circuit breaker, 2 pole, B Curve, 50 A, DIN rail, 5SY4550-6
Order No.:
 27H7353
Manufacturer:
 Siemens
Manufacturer SKU:
 5SY4550-6
Standard delivery time from the manufacturer is: 5 Weeks
Total Price: 79.78 € *
1 pcs.
79.7776 €
circuit breaker
2 pole
B
50 A
72 V
DIN rail
IP20
5SY4550-7 Siemens Circuit Protectors
Circuit breaker, 2 pole, C Curve, 50 A, DIN rail, 5SY4550-7
Order No.:
 27H7354
Manufacturer:
 Siemens
Manufacturer SKU:
 5SY4550-7
Standard delivery time from the manufacturer is: 5 Weeks
Total Price: 101.36 € *
1 pcs.
101.3642 €
circuit breaker
2 pole
C
50 A
72 V
DIN rail
IP20
5SY4550-8 Siemens Circuit Protectors
Circuit breaker, 2 pole, D Curve, 50 A, DIN rail, 5SY4550-8
Order No.:
 27H7355
Manufacturer:
 Siemens
Manufacturer SKU:
 5SY4550-8
Standard delivery time from the manufacturer is: 5 Weeks
Total Price: 124.08 € *
1 pcs.
124.0813 €
circuit breaker
2 pole
D
50 A
72 V
DIN rail
IP20
5SY4563-5 Siemens Circuit Protectors
Circuit breaker, 2 pole, A Curve, 63 A, DIN rail, 5SY4563-5
Order No.:
 27H7356
Manufacturer:
 Siemens
Manufacturer SKU:
 5SY4563-5
Standard delivery time from the manufacturer is: 5 Weeks
Total Price: 164.27 € *
1 pcs.
164.2676 €
circuit breaker
2 pole
A
63 A
72 V
DIN rail
IP20
5SY4563-6 Siemens Circuit Protectors
Circuit breaker, 2 pole, B Curve, 63 A, DIN rail, 5SY4563-6
Order No.:
 27H7357
Manufacturer:
 Siemens
Manufacturer SKU:
 5SY4563-6
Standard delivery time from the manufacturer is: 5 Weeks
Total Price: 88.39 € *
1 pcs.
88.3932 €
circuit breaker
2 pole
B
63 A
72 V
DIN rail
IP20
5SY4563-7 Siemens Circuit Protectors
Circuit breaker, 2 pole, C Curve, 63 A, DIN rail, 5SY4563-7
Order No.:
 27H7358
Manufacturer:
 Siemens
Manufacturer SKU:
 5SY4563-7
Standard delivery time from the manufacturer is: 5 Weeks
Total Price: 120.02 € *
1 pcs.
120.0234 €
circuit breaker
2 pole
C
63 A
72 V
DIN rail
IP20
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*incl. VAT plus shipping costs
Subject to prior sale
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Buying circuit protectors

Circuit protectors are essential components in electrical circuits that not only protect against overloading and short circuits, but also ensure the integrity and longevity of electrical systems. They act as automatic circuit breakers that interrupt the flow of current as soon as the energy flowing through exceeds a defined value.

This protective property makes circuit breakers indispensable components in numerous areas of application that require a reliable power supply and protection against electrical malfunctions. They are therefore typically used in household and industrial electronics, power distribution and building technology.

Reliable circuit breakers at Bürklin Elektronik

In the Bürklin Elektronik online shop, you will find a wide range of circuit breakers designed for a wide variety of requirements and protection classes. From simple devices for the home to highly complex systems for industrial applications - filter easily by number of poles, tripping characteristics, protection class and installation!

Our range includes products from leading manufacturers that are known for their high quality, reliability and durability. We also provide expert advice and technical support to help you select the right electromechanical fuse for your project.