Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
1SEP407742R0003 ABB EasyLine NO Auxiliary
ABB 1SEP407742R0003 is an EasyLine normally open auxiliary accessory designed to provide auxiliary signalling and control functionality with compatible ABB switching equipment.
£9.25
Why Choose the ABB EasyLine NO Auxiliary?
The ABB EasyLine NO Auxiliary, order code 1SEP407742R0003, is a purpose-designed normally open (NO) auxiliary accessory for compatible ABB EasyLine switching equipment. It forms part of ABB product group 311027-OT Switches and provides an auxiliary signalling function alongside the main switching device.
Auxiliary contacts are used in control and indication circuits to communicate switch status to other electrical equipment. The normally open contact of the 1SEP407742R0003 can be incorporated into suitable control, signalling, monitoring and interlocking arrangements without carrying the main switched power circuit.
As a dedicated ABB EasyLine accessory, this NO auxiliary is intended for integration with compatible equipment from the range. Its manufacturer-matched design makes it a practical choice for panel builders and industrial engineers requiring auxiliary status signalling within low-voltage switching installations.
Key Advantages
- Genuine ABB EasyLine auxiliary accessory.
- Provides a normally open (NO) auxiliary contact function.
- Supports switch-status signalling in compatible control circuits.
- Suitable for monitoring, indication and interlocking applications.
- Separates auxiliary signalling duties from the main power switching circuit.
- Manufacturer-matched design for compatible ABB EasyLine equipment.
- Suitable for industrial control panels and low-voltage switching assemblies.
Key Features
- ABB EasyLine NO Auxiliary.
- ABB order code 1SEP407742R0003.
- Normally open (NO) auxiliary contact function.
- Designed for compatible ABB EasyLine switching equipment.
- Suitable for auxiliary control and signalling circuits.
- Can support status indication and electrical interlocking functions.
- Part of ABB product group 311027-OT Switches.
Auxiliary Signalling for ABB EasyLine Switching Equipment
Auxiliary contacts allow the operating state of compatible switching equipment to be incorporated into secondary control circuits. A normally open auxiliary contact can be used to provide an electrical signal when its associated operating condition closes the contact, enabling integration with indicators, relays, control systems and other monitoring equipment.
The ABB 1SEP407742R0003 provides this auxiliary functionality for compatible EasyLine equipment. Its dedicated NO configuration makes it suitable where a normally open signalling path is required as part of an industrial control or switch-status monitoring arrangement.
Typical Applications
- Compatible ABB EasyLine switching equipment.
- Switch-position and status signalling circuits.
- Industrial control panels.
- Electrical interlocking arrangements.
- Remote status indication systems.
- OEM machinery and power distribution equipment.
Technical Specifications
Tick the specs you need, then view products that match.
| Device Type | Accessory | |
|---|---|---|
| Range | EasyLine | |
| Product designation | NO Auxiliary | |
| ABB order code | 1SEP407742R0003 | |
| Product type | Auxiliary accessory | |
| Contact function | Normally open (NO) | |
| Application | Auxiliary signalling and control | |
| Compatibility | Compatible ABB EasyLine switching equipment | |
| ABB product group | 311027-OT Switches |
Frequently Asked Questions
What is the ABB 1SEP407742R0003?
The ABB 1SEP407742R0003 is an EasyLine normally open auxiliary accessory designed for compatible ABB switching equipment.
What contact function does the ABB 1SEP407742R0003 provide?
It provides a normally open (NO) auxiliary contact function.
What is an NO auxiliary contact used for?
A normally open auxiliary contact can be used in suitable secondary circuits for functions such as switch-status signalling, indication, monitoring and electrical interlocking.
Is the ABB 1SEP407742R0003 part of the EasyLine range?
Yes. ABB identifies the 1SEP407742R0003 as an EasyLine NO Auxiliary.
Does this auxiliary contact carry the main switched power circuit?
No. It is an auxiliary accessory intended for compatible control and signalling functions rather than the main switched power path.
What is the ABB order code for the EasyLine NO Auxiliary?
The ABB order code is 1SEP407742R0003.
Trusted by Panel Builders and Industrial Engineers Worldwide
ABB switching accessories provide dedicated auxiliary control and signalling functions for compatible low-voltage equipment, supporting practical integration into industrial control panels, machinery and electrical distribution systems.
