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1SBV010751R1211 ABB LS43P51B11 Adjustable Plastic Roller Lever Limit Switch
ABB LS43P51B11 is an IP65 standard reinforced industrial limit switch with an adjustable 22 mm plastic roller lever, ISO M20 × 1.5 cable entry and 1 NO + 1 NC snap-action contacts for reliable movement and position detection.
£50.22
Why Choose the ABB LS43P51B11 Limit Switch?
The ABB LS43P51B11 is a standard reinforced industrial adjustable roller lever limit switch designed for dependable position, movement and travel-limit detection in machinery and automation systems. Part of ABB's LS4..P standard reinforced range, it combines an adjustable plastic roller lever with a Ø22 mm roller and 1 NO + 1 NC snap-action (Zb type) contacts.
The LS43P51B11 features a robust 40 mm class fibre-glass reinforced UL-V0 plastic housing providing double insulation and an IP65 degree of protection. Four mounting holes at the top and bottom support secure machine installation, while the bottom-mounted ISO M20 × 1.5 cable entry accommodates a suitable cable gland for control wiring.
Its adjustable roller lever allows the actuator position to be configured for the movement of the machine component, while a maximum actuation speed of 1.5 m/s and minimum actuation torque of 0.15 N·m support reliable repetitive operation. ABB order code 1SBV010751R1211 identifies this exact LS43P51B11 configuration.
Key Advantages
- Adjustable plastic roller lever provides flexibility when setting the mechanical operating position.
- Ø22 mm roller supports smooth interaction with moving machine components.
- 1 NO + 1 NC snap-action Zb-type contacts provide complementary switching outputs.
- IP65 protection supports installation in demanding industrial environments.
- Robust fibre-glass reinforced UL-V0 plastic housing provides double insulation.
- Four mounting holes and reinforced construction support secure machine mounting.
- Suitable for repetitive machine-position, sequencing and travel-limit detection.
Key Features
- ABB LS43P51B11 standard reinforced limit switch.
- Adjustable plastic roller lever actuator.
- Ø22 mm roller diameter.
- 1 normally open + 1 normally closed contact.
- Snap-action Zb-type contact mechanism.
- Maximum actuation speed: 1.5 m/s.
- Minimum actuation torque: 0.15 N·m.
- IP65 degree of protection.
- ISO M20 × 1.5 bottom cable entry.
- Fibre-glass reinforced UL-V0 plastic housing.
- Double-insulated construction.
- Operating ambient temperature range of -25 to +70 °C.
Adjustable Position Detection for Industrial Machinery
The ABB LS43P51B11 converts mechanical movement into an electrical control signal, allowing machinery and automation systems to detect defined positions and travel limits. Its adjustable roller lever enables the actuator position to be configured for the application, while the Ø22 mm plastic roller provides smooth engagement with moving machine components.
The combination of a reinforced housing, four-point mounting, 1 NO + 1 NC snap-action contacts and IP65 protection makes the LS43P51B11 suitable for repetitive machine sequencing and position-monitoring duties. The adjustable actuator is particularly useful where the switch operating geometry needs to be matched to the movement of a cam, carriage, door or other machine component.
Typical Applications
- Industrial machinery position and movement detection.
- Conveyor and material handling systems.
- Machine travel and end-position monitoring.
- Packaging and production machinery.
- Automated assembly and manufacturing equipment.
- Machine sequencing and industrial control systems.
Technical Specifications
| Series | LS4..P Standard Reinforced |
|---|---|
| ABB order code | 1SBV010751R1211 |
| Product group | 311523-Limit Switches (Frctl) |
| Product type | Limit switch |
| Actuator type | Adjustable plastic roller lever |
| Roller diameter | Ø22 mm |
| Contact configuration | 1 NO + 1 NC |
| Contact action | Snap action, Zb type |
| Rated operational current, AC-15 at 24 V | 10 A |
| Rated operational current, AC-15 at 125 V | 5.5 A |
| Rated operational current, AC-15 at 230 V | 3.1 A |
| Rated operational current, DC-13 at 24 V | 6 A |
| Rated operational current, DC-13 at 125 V | 0.6 A |
| Rated operational current, DC-13 at 230 V | 0.4 A |
| Maximum actuation speed | 1.5 m/s |
| Minimum actuation torque | 0.15 N·m |
| Positive-opening torque | 0.3 N·m |
| Protection rating | IP65 |
| Housing material | Fibre-glass reinforced UL-V0 plastic |
| Insulation | Double insulated |
| Cable entry | ISO M20 × 1.5, bottom entry |
| Mounting | Four mounting holes at top and bottom |
| Product width | 41 mm |
| Product height | 135 mm |
| Product depth | 62 mm |
| Net weight | Approx. 0.195 kg |
| Operating ambient temperature | -25 to +70 °C |
| Conformity | EN 50041, A shape |
| EAN / GTIN | 3471522003232 |
Frequently Asked Questions
What is the ABB LS43P51B11 used for?
The ABB LS43P51B11 is an industrial limit switch used for mechanical position, movement and travel-limit detection in machinery and automation systems.
What actuator does the LS43P51B11 use?
The LS43P51B11 uses an adjustable plastic roller lever with a Ø22 mm roller, allowing the actuator position to be configured to suit the application.
What contact configuration does the ABB LS43P51B11 have?
The LS43P51B11 has 1 normally open and 1 normally closed snap-action contact in a Zb-type configuration.
What is the protection rating of the LS43P51B11?
The ABB LS43P51B11 has an IP65 degree of protection and uses a fibre-glass reinforced UL-V0 plastic housing providing double insulation.
What cable entry does the LS43P51B11 use?
The LS43P51B11 has a bottom-mounted ISO M20 × 1.5 threaded cable entry designed for connection using a suitable cable gland.
What are the dimensions of the ABB LS43P51B11?
The LS43P51B11 measures approximately 135 × 41 × 62 mm (height × width × depth) and has a net weight of approximately 0.195 kg.
Trusted by Machine Builders Worldwide
ABB LS4..P standard reinforced limit switches provide dependable electromechanical position detection for industrial machinery, combining robust reinforced housings, adjustable roller lever actuation and snap-action contacts for demanding automation and machine-control applications.
