Why Choose the ABB LS30P30L20 Limit Switch?
The ABB LS30P30L20 is a compact 30 mm industrial limit switch designed for dependable position and movement detection on machinery and automated equipment. Supplied under ABB order code 1SBV010230R1320, it forms part of the ABB 311523-Limit Switches (Frctl) product group and combines a fibre-glass reinforced plastic casing with a roller-lever actuator.
The LS30P30L20 uses a Ø12.5 mm plastic roller lever on a plastic plunger for horizontal movement detection. Its internal contact block provides 2 normally open auxiliary contacts with slow, simultaneous action, identified by ABB's L20 contact designation. Both contacts therefore operate together as the actuator reaches its switching point.
Designed around ABB's LS30 platform, the LS30P30L20 has a compact 30 mm-wide double-insulated plastic enclosure and IP65 protection. A bottom Pg 13.5 cable entry, adjustable actuator head and industrial-duty switching mechanism make it suitable for conveyors, machine tools, packaging equipment, production machinery and general automation applications.
Key Advantages
- Compact 30 mm-wide limit switch for space-conscious machine installations.
- 2 normally open auxiliary contacts provide dual switching from one mechanical input.
- Slow, simultaneous contact action ensures both NO contacts change state together.
- Ø12.5 mm plastic roller lever supports smooth horizontal movement detection.
- IP65 protection supports use in demanding industrial control environments.
- Fibre-glass reinforced UL94 V-0 plastic casing combines durability with electrical insulation.
- Adjustable actuator head provides flexibility when integrating the switch into machinery.
Key Features
- ABB LS30P30L20 limit switch.
- 30 mm plastic casing.
- Ø12.5 mm plastic roller lever.
- Plastic plunger mechanism for horizontal movement.
- 2 normally open contacts.
- L20 slow-action contact block.
- Simultaneous contact operation.
- Dependent slow-action switching mechanism.
- IP65 degree of protection.
- Double-insulated plastic construction.
- Pg 13.5 bottom cable entry.
- Two mounting holes at the top of the casing.
- Actuator head adjustable in 90° increments.
Simultaneous Slow-Action Switching for Machine Position Detection
The defining feature of the ABB LS30P30L20 is its L20 slow-action contact arrangement. Unlike a snap-action mechanism, the switching movement of a dependent slow-action contact block follows the mechanical movement of the actuator. In this configuration, the two normally open contacts are arranged for simultaneous operation, allowing two control or signalling circuits to respond together when the roller lever reaches the required operating position.
The Ø12.5 mm roller lever and plastic plunger convert movement from a machine component into controlled operation of the internal contacts. Combined with the compact 30 mm casing, IP65 protection and adjustable head, this makes the LS30P30L20 well suited to repetitive position sensing and auxiliary control duties in industrial automation systems.
Typical Applications
- Industrial machine position detection.
- Conveyor and material handling systems.
- End-of-travel and mechanism position sensing.
- Automated production machinery.
- Packaging and processing equipment.
- Machine tools and assembly equipment.
- Dual auxiliary signalling circuits.
- PLC and industrial automation inputs.
