LA38 Series Emergency Stop Button Collection

Product Overview
The LA38-11ZS series is a family of industrial safety components built as 22mm push button switch emergency-stop units for safety-critical control circuits. As practical emergency stop push button options, every unit adopts press-to-lock and turn-to-release operating mode. This mushroom emergency stop switch series stays locked in the OFF state after activation, and manual rotation is required for reset, meeting standard machinery safety requirements. Three head variants are available with identical internal structure, electrical specifications, and mounting dimensions, differing only in mushroom-head surface marking. Each emergency stop push button within this series supports optional auxiliary indicator lamp configuration for real-time status indication.
Common Technical Specifications
All electrical data are sourced from the factory side-label and comply with the GB/T 14048.5 standard for low-voltage switchgear.
-Rated Insulation Voltage (Ui): 600V
-Conventional Thermal Current (Ith): 10A
-Rated Impulse Withstand Voltage (Uimp): 6kV
-Utilization Category: AC-15, DC-13
-Standard Contact Logic: 1NO 1NC; stackable contact blocks allow expansion to 2NO, 2NC or 2NO-2NC.
-Safety Certifications: UL (cURus), CE, CB, CCC, RoHS, ISO9001:2015
Universal Appearance & Mounting Dimensions
Designed for field-friendly installation, this 22mm push button switch range fits standard industrial control cabinets.
-Mounting Cutout: 22 mm standard panel hole
-Actuator Style: 40 mm high-visibility red mushroom head
-Safety Base: Industrial-standard yellow base for immediate visual identification
-Total Height: 78 mm (unlocked status)
-Behind-Panel Depth: Approx 38.25 mm for compact cabinet installation
Available Head Marking Variants
1. Plain Mushroom-Head: Matte red actuator without any printed markings. Suitable for language-independent global signaling.
2. White-Arrow Marked: Red head printed with high-contrast white directional arrows for explicit reset guidance.
3. "STOP" Printed: Red head printed with clear "STOP" marking plus rotation arrows for quick recognition.
Construction & Reliability
As a reliable industrial safety switch, the series uses thickened silver-alloy contacts to deliver arc-resistance under rated 10A loads. The built-in contact self-cleaning function removes dust and oxidation during each operation to sustain stable conductivity. The snap-fit modular structure enables contact block replacement or expansion without complete disassembly. Integrated dust-proof base protects inner mechanical parts from workshop debris, extending the service life of this mushroom emergency stop switch.
Typical Applications
This machine emergency stop button is widely deployed on CNC machine tools, automated production lines, conveyor systems, and power distribution cabinets. Installed as a reliable control panel push button, it performs emergency power cutoff for industrial equipment. Integrators frequently select this industrial safety switch to satisfy mandatory safety specifications for new machinery builds and equipment retrofits.
Manufacturer Note
Jiangxi Nanma Electrical Co., Ltd. conducts batch-by-batch electrical and mechanical performance testing for every emergency stop push button under the ISO9001:2015 quality management system. Sample support and stable bulk supply are available for global buyers.