Siemens SENTRON 5SY8 Miniature Circuit Breaker, 3-Pole, 20 A, Type D, 400 V ac AC, 72 V DC, 30 kA Breaking Capacity

View all MCBs

Subtotal (1 unit)*

£127.14

(exc. VAT)

£152.57

(inc. VAT)

Add to Basket
Select or type quantity
Temporarily out of stock
  • Shipping from 10 April 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
1 +£127.14

*price indicative

RS Stock No.:
610-467
Mfr. Part No.:
5SY8320-8BB08
Brand:
Siemens
Find similar products by selecting one or more attributes.
Select all

Brand

Siemens

Number of Poles

3

Product Type

Miniature Circuit Breaker

Current Rating

20 A

Tripping Characteristics

Type D

Rated AC Voltage

400 V ac

Rated DC Voltage

72 V

Mount Type

DIN Rail

Breaking Capacity

30kA

Range

SENTRON

Series

5SY8

Terminal Type

Screw

IP Rating

IP20

Depth

76mm

Width

54 mm

Standards/Approvals

IEC 60947-2

Height

90mm

Tripping Mechanism

Magnetic

COO (Country of Origin):
DE
The Siemens Miniature Circuit Breaker is engineered for robust protection in industrial and infrastructural applications. Designed strictly for magnetic tripping, this device operates at a voltage of 400 V and provides reliable circuit interruption with a breaking capacity up to 30 kA. Its 3-pole configuration is perfect for various setups, ensuring efficient and safe performance. With a compact design and versatile fitting options, it enhances your energy management strategy while maintaining strict adherence to safety standards. Ideal for environments demanding high resilience, this circuit breaker offers mechanical service lifetimes typical of 10,000 operating cycles, ensuring longevity and reliability in continuous operations. The unit is built to withstand challenging environmental conditions, showcasing a temperature operation range from -25 °C to 45 °C, and is well-prepared to handle the rigors of modern electrical installations.

Only magnetic tripping operation ensures simplified reliable performance

Compact dimensions allow for space-saving installation in diverse configurations

Vibration-resistant features accommodate challenging industrial settings

Halogen-free materials contribute to improved environmental safety

User-friendly terminal connections support a range of conductor cross-sections

Conforms to international safety standards enhancing trust in critical applications

Multiple mounting positions and DIN rail fastening ensure installation flexibility

Touch protection feature enhances user safety during operation

Related links