Siemens SENTRON 3 Phase Busbar, 18mm Pitch

View all Busbars

Subtotal (1 unit)*

£30.12

(exc. VAT)

£36.14

(inc. VAT)

Add to Basket
Select or type quantity
In Stock
  • Plus 7 unit(s) shipping from 27 October 2025
  • Plus 4 unit(s) shipping from 27 October 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
1 +£30.12

*price indicative

RS Stock No.:
124-3142
Mfr. Part No.:
5ST3708
Brand:
Siemens
Find similar products by selecting one or more attributes.
Select all

Brand

Siemens

Material

Copper

Range

SENTRON

Electrical Phase

3

Series

5ST

Current Rating

80A

Pitch

18mm

Colour

Light Grey

RoHS Status: Exempt

COO (Country of Origin):
DE

Series 5ST3 7 Bus-Bar System


With pin connections
Cut-to-length bar
For 1 or 3-phase line protective switches of the series 5SJ6 and 5SY
No additional connection terminal required for stranded connection up to 35mm²
Excellent accessibility for feeder cable
50→90A load at infeed single-sided/in-centre for 10mm²; 65→120A for 16mm²
Pin type connection
Material: Cu (10mm²); 16mm² fully insulated
Lug spacing: 18mm

Standards

DIN 57606, DIN 57659

Siemens 5ST Series Busbar, 400 V AC Rated Operational Voltage, 80A Current Rating - 5ST3708


This busbar is a critical component in electrical systems, designed specifically for 3-phase applications. Featuring a dimension of 214mm in length, it is a flexible copper solution, finished in a light grey hue. It is suitable for integration with 3P miniature circuit breakers, enhancing its application versatility within various electrical setups.

Features & Benefits


• Utilises copper material for efficient electrical conductivity
• Rated operational voltage of 400V AC for robust performance
• Dimensions allow for compatibility with various configurations
• Laminated design ensures durability and reduced risk of shock hazards

Applications


• Specifically designed for use with 3P miniature circuit breakers
• Ideal for electrical busbar solutions in automation systems
• Perfectly suited for use in industrial electrical installations
• Used in commercial and mechanical electrical setups

What is the significance of the busbar's current rating?


An 80A current rating ensures optimal performance when used with circuit breakers, enabling efficient distribution of electrical power without overheating.

How does the flexible design improve usability?


The flexible characteristics allow for simpler adaptations during installation, making it easier to fit into diverse setups while maintaining excellent functionality.

What considerations should be made when integrating this busbar into existing systems?


It is essential to assess compatibility with other equipment, particularly the ratings of connected devices and the overall electrical system's load to ensure safety and efficiency.

In what environments is this busbar most effectively used?


It is particularly beneficial in industrial, commercial, and automation settings where robust electrical connections are crucial for system reliability.


Siemens Distribution Boards & Accessories


Type B characteristic offers instantaneous short circuit response level of 3-5 x normal rated current, making it suitable for circuits with moderate inrush currents such as filament lamps, heating loads and most domestic/small building protection applications.,Type C characteristic offers short circuit response of 5-10 x normal rated current, making it ideal for circuits with higher inrush currents such as motor control and fluorescent lighting installations in industrial buildings where nuisance tripping might occur if a faster type was used.

Related links