Siemens SENTRON 5SY4 Miniature Circuit Breaker, 3-Pole, 40A, Type A, 400V ac AC, 60 V dc DC, 10 kA Breaking Capacity

View all MCBs

Subtotal (1 unit)*

SGD404.10

(exc. GST)

SGD440.47

(inc. GST)

Add to Basket
Select or type quantity
Stocked by manufacturer
  • Ready to ship from 09 July 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
1 +SGD404.10

*price indicative

RS Stock No.:
610-573
Mfr. Part No.:
5SY4340-5
Manufacturer:
Siemens
Find similar products by selecting one or more attributes.
Select all

Brand

Siemens

Product Type

Miniature Circuit Breaker

Number of Poles

3

Current Rating

40A

Tripping Characteristics

Type A

Rated AC Voltage

400V ac

Rated DC Voltage

60V dc

Breaking Capacity

10kA

Mount Type

DIN Rail

Range

SENTRON

Series

5SY4

Terminal Type

Screw

IP Rating

IP20

Width

54mm

Standards/Approvals

IEC / EN 60898-1, IEC / EN 60947-2, UL1077

Depth

76mm

Height

90mm

COO (Country of Origin):
DE
The Siemens Miniature Circuit Breaker is engineered for optimal safety and reliability in electrical installations. Designed to handle a supply voltage of 400 V and a breaking capacity of up to 15 kA, this device ensures robust protection for your electrical systems. With a compact design of just 70 mm in depth, it’s perfect for environments where space is at a premium. Its three-pole configuration and tripping characteristic class A provide reliable fault protection, making it ideal for industrial and infrastructural applications. Crafted to function seamlessly under challenging conditions, this circuit breaker stands up to overvoltage categories and varying pollution degrees, guaranteeing long-lasting performance. Its versatility is further enhanced with the capability to connect conductors of various cross-sections, accommodating a broad range of wiring requirements. Trust in siemens for equipment that keeps your operations secure and efficient.

Designed for efficient circuit protection in industrial settings

Compact dimensions enhance space efficiency in installations

Robust breaking capacity ensures safety during overloads

Reliable tripping characteristics prevent electrical faults

Compatible with a variety of conductor sizes for versatile applications

Built to withstand challenging environmental conditions

Rated for a high number of operating cycles for longevity

Sealable design enhances safety by preventing unauthorized access

Vibration resistance increases durability in dynamic environments

Environmentally conscious design reflects commitment to sustainability

Related links