Why Choose the ABB 2CMA142629R1000 LBAS390TPN Safety Switch?
The ABB 2CMA142629R1000, also known as the LBAS390TPN, is a robust 3-pole enclosed safety switch designed for reliable switching, isolation and protection of low-voltage electrical circuits. Part of the trusted ABB enclosed safety switch range, it is engineered for industrial environments where dependable performance, operator safety and long service life are essential.
Housed in a durable polyester-coated die-cast aluminium enclosure, the LBAS390TPN offers excellent mechanical strength and corrosion resistance while providing an IP65 protection rating when installed with suitable compression cable glands. The switch features an interlocked, padlockable operating handle, helping prevent unauthorised operation during maintenance and improving workplace safety.
With a rated operational current of 90 A and a maximum operational voltage of 690 V AC, the LBAS390TPN is ideal for isolating motors, machinery and industrial power distribution circuits. It is supplied complete with one normally open auxiliary contact together with neutral and PE terminals for straightforward installation.
Key Advantages
Heavy-duty 3-pole enclosed safety switch for industrial electrical isolation.
90 A rated operational current with operation up to 690 V AC.
IP65 aluminium enclosure suitable for demanding industrial environments.
Padlockable operating handle with integrated cover interlock.
Supplied with 1 NO auxiliary contact, neutral and PE terminals.
Excellent corrosion resistance for long-term reliability.
Key Features
ABB enclosed safety switch series.
LBAS390TPN model.
90 A rated operational current.
690 V AC maximum operational voltage.
3-pole switch disconnector.
Die-cast aluminium enclosure with polyester coating.
IP65 ingress protection.
Padlockable black operating handle with cover interlock.
One normally open auxiliary contact included.
Neutral and PE terminals supplied.
Reliable Electrical Isolation for Industrial Installations
Enclosed safety switches provide a visible means of disconnecting electrical equipment from the power supply, allowing maintenance and servicing to be carried out safely. They are widely used to isolate motors, conveyors, pumps, HVAC equipment and industrial machinery where dependable switching and operator safety are critical.
The ABB LBAS390TPN combines a rugged aluminium enclosure with dependable switching performance and a compact design, making it well suited to demanding industrial, commercial and infrastructure installations.
Typical Applications
Industrial machinery isolation.
Motor control centres.
Manufacturing facilities.
HVAC systems.
Pumps and compressors.
Commercial and industrial power distribution.
Technical Specifications
Power
45 kW
Current
90 A
Phase
Three Phase
IP Rating
IP65
Manufacturer
ABB
Series
Enclosed Safety Switches
Product ID
2CMA142629R1000
Model
LBAS390TPN
Product type
Enclosed safety switch
Rated operational current
90 A
Maximum operational voltage
690 V AC
Maximum motor rating (AC-23A 415 V)
45 kW
Number of poles
3
Enclosure material
Die-cast aluminium
Protection rating
IP65
Auxiliary contacts supplied
1 NO
Handle
Black, padlockable
Neutral and PE terminals
Included
Cable entries
2 × M40 top / 2 × M40 bottom + 1 × M16
Dimensions (H × W × D)
230 × 160 × 118 mm
Weight
approx. 1.75 kg
Standard
IEC 60947-3
Frequently Asked Questions
What is the ABB 2CMA142629R1000 used for?
It is used for safely switching and isolating electrical circuits in industrial and commercial low-voltage installations.
What is the rated current of this safety switch?
The ABB LBAS390TPN has a rated operational current of 90 A.
Is the enclosure suitable for outdoor use?
Yes. The aluminium enclosure provides IP65 protection when installed using suitable compression cable glands.
Can the operating handle be padlocked?
Yes. The handle can be padlocked to prevent unauthorised operation during maintenance and can also be locked in the ON position if required.
What auxiliary contact is supplied?
The switch is supplied complete with one normally open (1 NO) auxiliary contact.
Trusted by Electrical Professionals Worldwide
ABB enclosed safety switches are trusted by electrical engineers, panel builders and industrial maintenance professionals for dependable isolation, robust construction and long-term operational reliability.
Power
45 kW
Current
90 A
Phase
Three Phase
IP Rating
IP65
Manufacturer
ABB
Series
Enclosed Safety Switches
Product ID
2CMA142629R1000
Model
LBAS390TPN
Product type
Enclosed safety switch
Rated operational current
90 A
Maximum operational voltage
690 V AC
Maximum motor rating (AC-23A 415 V)
45 kW
Number of poles
3
Enclosure material
Die-cast aluminium
Protection rating
IP65
Auxiliary contacts supplied
1 NO
Handle
Black, padlockable
Neutral and PE terminals
Included
Cable entries
2 × M40 top / 2 × M40 bottom + 1 × M16
Dimensions (H × W × D)
230 × 160 × 118 mm
Weight
approx. 1.75 kg
Standard
IEC 60947-3
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
Trusted Manfacturers
● frequently asked questions
Common questions about our products and support
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...