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1SBV016011R3801 ABB LS21P11B11-U01 Compact Limit Switch
ABB LS21P11B11-U01 compact prewired IP67 limit switch with a plain steel plunger, 1 NO + 1 NC snap-action contacts and a 1 m bottom-exit PVC cable for industrial position detection.
£42.82
Why Choose the ABB LS21P11B11-U01 Limit Switch?
The ABB LS21P11B11-U01 is a compact, prewired industrial limit switch designed for reliable position detection and mechanical switching in machinery and automation systems. As part of the ABB LS2..P compact limit switch range, it combines a space-saving 30 mm-wide plastic body with a plain steel plunger actuator and snap-action contacts.
Designed for applications requiring a high degree of environmental protection in limited mounting space, the LS21P11B11-U01 features a fibre-glass reinforced UL-V0 plastic casing sealed with epoxy for double insulation and IP67 protection. Its prewired construction simplifies installation and helps provide dependable operation in industrial environments.
The LS21P11B11-U01 incorporates 1 NO + 1 NC snap-action contacts in a Zb contact configuration, with positive opening operation of the NC contact. A plain steel plunger provides direct mechanical actuation, while the 1 m prewired PVC cable exits from the bottom of the switch for convenient installation.
Key Advantages
- Compact 30 mm-wide limit switch for space-constrained machinery.
- Plain steel plunger actuator for direct mechanical position detection.
- 1 NO + 1 NC snap-action contacts for versatile control signalling.
- Positive opening operation of the NC contact.
- IP67 protection for demanding industrial environments.
- Prewired 1 m PVC cable with bottom cable exit simplifies installation.
- Fibre-glass reinforced UL-V0 plastic casing with double insulation.
Key Features
- ABB LS2..P compact prewired limit switch.
- Plain steel plunger actuator.
- 1 NO + 1 NC snap-action Zb contacts.
- NC contact with positive opening operation.
- 10 A conventional free-air thermal current (Ith) at 40 °C according to IEC 60947-5-1.
- 0.5 m/s maximum actuation speed.
- 15 N minimum actuation force.
- 30 N positive opening force.
- IP67 degree of protection.
- Prewired cable with bottom cable outlet.
Reliable Position Detection for Industrial Machinery
Limit switches such as the ABB LS21P11B11-U01 provide electromechanical position feedback when a moving machine component physically engages the actuator. The plain steel plunger converts this mechanical movement into rapid snap-action switching of the internal contacts, enabling reliable signalling to machine control and automation circuits.
The compact LS2..P design is particularly suitable where installation space is restricted but robust environmental protection is required. Its prewired construction, IP67 enclosure and positive-opening NC contact make it well suited to industrial equipment requiring dependable mechanical position, presence or end-of-travel detection.
Typical Applications
- Industrial machinery position detection.
- Conveyor and material handling equipment.
- Machine end-of-travel detection.
- Packaging and production machinery.
- Automated assembly equipment.
- Mechanical presence and position sensing.
- OEM machinery and industrial control systems.
Technical Specifications
| Series | LS2..P Compact Prewired Limit Switches |
|---|---|
| ABB order code | 1SBV016011R3801 |
| Product type | Limit switch |
| Actuator | Plain steel plunger |
| Contact configuration | 1 NO + 1 NC |
| Contact action | Snap action, Zb |
| Positive opening | NC contact |
| Conventional free-air thermal current (Ith) | 10 A at 40 °C |
| Maximum actuation speed | 0.5 m/s |
| Minimum actuation force | 15 N |
| Positive opening force | 30 N |
| Protection rating | IP67 |
| Housing | Fibre-glass reinforced UL-V0 plastic |
| Insulation | Double insulated |
| Cable | Prewired UL62 PVC cable, 1 m |
| Cable exit | Bottom |
| Body width | 30 mm |
| Dimensions (H × W × D) | 60 × 30 × 16 mm |
| Weight | approx. 0.125 kg |
| Mechanical durability | 30 million operations |
Frequently Asked Questions
What is the ABB LS21P11B11-U01 used for?
The LS21P11B11-U01 is a compact industrial limit switch used for mechanical position, presence and end-of-travel detection in machinery and automation systems.
What actuator does the LS21P11B11-U01 use?
The switch uses a plain steel plunger actuator designed for direct mechanical actuation by moving machine components.
What contacts are fitted to the LS21P11B11-U01?
It has 1 normally open and 1 normally closed snap-action contact in a Zb configuration, with positive opening operation of the NC contact.
What is the protection rating of this ABB limit switch?
The LS21P11B11-U01 has an IP67 protection rating, making it suitable for demanding industrial environments.
Is the ABB LS21P11B11-U01 prewired?
Yes. It is supplied with a 1 m prewired PVC cable exiting from the bottom of the switch body, helping simplify installation in machinery and control systems.
Trusted Industrial Position Switching from ABB
ABB LS compact limit switches provide dependable electromechanical position detection for industrial machinery, combining robust construction, compact installation dimensions and reliable snap-action switching for automation applications.
