Better World

Siemens SENTRON 5SY7 MCB, 3+N, 40A Curve B, 5 kA Breaking Capacity

View all MCBs

Subtotal (1 unit)*

£166.25

(exc. VAT)

£199.50

(inc. VAT)

Add to Basket
Select or type quantity
Temporarily out of stock
  • Shipping from 30 October 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
1 +£166.25

*price indicative

Better World

Our Better World range features products that make it easy for you to make a greener product choice you can trust. Click here to find out more.

RS Stock No.:
212-9035
Mfr. Part No.:
5SY7640-6
Brand:
Siemens
Find similar products by selecting one or more attributes.
Select all

Brand

Siemens

Number of Poles

3+N

Current Rating

40A

Tripping Characteristics

Type B

Breaking Capacity at Maximum Voltage Rating

5 kA

Range

SENTRON

Series

5SY7

Circuit Breaker Type

MCB

Length

90mm

Width

72mm

Mounting Style

DIN Rail Mount

Depth

76mm

Model Number

5SY7640

Better World Product

Yes

Better World Claim

Extended product life

Related links