Better World

Siemens SIRIUS 3RT Size S2, 3RT2 Contactor, 230 V ac Coil, 3-Pole, 80 A, 37 kW, 1NO + 1NC, 400 V ac

Subtotal (1 unit)*

£243.67

(exc. VAT)

£292.40

(inc. VAT)

Add to Basket
Select or type quantity
Temporarily out of stock
  • 2 unit(s) shipping from 20 November 2025
  • Plus 5 unit(s) shipping from 27 November 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
1 +£243.67

*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.:
210-3279
Mfr. Part No.:
3RT2038-1AL20
Brand:
Siemens
Find similar products by selecting one or more attributes.
Select all

Brand

Siemens

Coil Voltage

230 V ac

Number of Poles

3

Contact Voltage Rating

400 V ac

Contact Current Rating

80 A

Range

SIRIUS 3RT

Power Rating

37 kW

Series

Size S2, 3RT2

Function

Reversing

Normal State Configuration

1NO + 1NC

Auxiliary Contact Configuration

1NO + 1NC

Number Of Auxiliary Contacts

2

Terminal Type

Screw

Width

55mm

Length

114mm

Depth

130mm

Better World Product

Yes

Better World Claim

Low carbon manufacture

Load Current

80A

Mounting Style

DIN Rail

Load Voltage

400V ac

Maximum Operating Temperature

+60°C

Minimum Operating Temperature

-25°C

Control Voltage

230 V ac

COO (Country of Origin):
DE

Siemens size S2, 3RT2 Series Contactor, 3 Poles, 80A Current Rating - 3RT2038-1AL20


This contactor is designed for robust performance in various applications within the electrical and automation sectors. With a compact structure measuring 114mm in length, 55mm in width, and 130mm in depth, it features a 3-pole configuration, supporting a contact current rating of 80A at 400V AC. The coil operates at a voltage of 230V AC, making it suitable for a wide range of industrial applications.

Features & Benefits


• Supports a maximum power rating of 37 kW for efficient operation
• Features reversing functionality for versatile control
• Designed for DIN rail mounting for easy installation
• Operates effectively across a temperature range of -25°C to +60°C
• Reliable auxiliary contacts configuration enhances circuit versatility

Applications


• Utilised in motor control and automation systems
• Ideal for requiring reversing functionality
• Used in conjunction with various industrial machinery
• Suitable for controlling large loads and motors
• Effective in HVAC systems for efficient performance

What is the operational range for the control supply voltage?


The operational range for the control supply voltage is between 0.8 to 1.1 times the rated value at 50Hz and slightly higher at 60Hz, ensuring reliable performance within accepted parameters.

How many mechanical operating cycles can this contactor handle?


This contactor is rated for a mechanical service life of up to 10 million operating cycles, which provides significant longevity for continuous usage in demanding environments.

What are the insulation and surge voltage resistance ratings for the device?


The insulation voltage for the main and auxiliary circuits is rated at 690V, and it can withstand surge voltages up to 6kV, ensuring safety and reliability in varied conditions.