Products

The L Series is a high-performance, explosion-proof limit switch designed specifically for high-grade hazardous environments. Certified to international standards including ATEX, EEx, and dust explosion protection (DIP A20 TA, T6), this product ensures maximum safety and reliability in critical applications.

The enclosure is constructed from magnesium-free die-cast aluminum, enhancing both mechanical strength and explosion safety. Engineered for long-term operation in explosive gas and dust environments, the L Series delivers reliable valve position indication in the most challenging conditions.

Explosion-proof rating CSA, ATEX NEC 505: Ex d IIC T6 Gb; Class I, Zone 1, AEx d IIC T6 Gb.

With its robust construction and internationally recognized certifications, the L Series is a trusted solution for use in oil and gas, chemical processing, mining, and other hazardous industrial settings.

LABAA211100, 2 SPDT, switch type V15T16SZ200A05, max 15 A, 250 Vac;

LABAA313100, 3 SPDT, switch type V15T16SZ200A05, max 15 A, 250 Vac;

LABAA414100, 4 SPDT, switch type V15T16SZ200A05, max 15 A, 250 Vac;

LABAO21 l l 00, switch type ALPS-24, 2 wires, rated 10 - 30 V de, <= 150mA;

LABAE211100, switch type ALPS-24, 3 wires, rated 10 - 30 V de, <=150mA;

LABAG211100, switch type ALMS-5-240, 2 wires, rated 5 - 240 V ac, <=300mA or 5-24 V de, <=lO0mA;

LABAF211100, switch type NCB2-V3-No, 2 wires, rated 8 V de, <=lmA;

LABAJ015100, switch type AS2, rated 20-28 V de, <=41mA.

L Series Drawings

Description	Part No. / Draw No.	PDF
L Series Switch Box Envelope and Mounting Dimensions	LABAA211100
L Series Switch Box Envelope and Mounting Dimensions	LABAA211110
L Series Switch Box Envelope and Mounting Dimensions	LABAA414100
L Series Switch Box Envelope and Mounting Dimensions	LABAD211100
L Series Switch Box Envelope and Mounting Dimensions	LABAE211100
L Series Switch Box Envelope and Mounting Dimensions	LABAF211100
L Series Switch Box Envelope and Mounting Dimensions	LABAG211100
L Series Switch Box Envelope and Mounting Dimensions	LABAH211100
L Series Switch Box Envelope and Mounting Dimensions	LABAI414100
L Series Switch Box Envelope and Mounting Dimensions	LABAJ015100
L Series Switch Box Envelope and Mounting Dimensions	LABBF211110
L Series Switch Box Envelope and Mounting Dimensions	LABBP211100
L Series Switch Box Envelope and Mounting Dimensions	LCBAH211100
3Way-Diverter-Indication

The D Series limit switches Protective type limit switch box is a kind of compact, economic and reliable product, which has achieved local visibility and remote indication of valve position. It allows different built-in switches and can be used under high temperature, low temperature and other severe environments.

Combining economy, reliability, and practicality, the D Series enables both on-site visual and remote electronic indication of valve position. It supports a variety of built-in signal outputs, ensuring compatibility with different control systems.

Engineered for versatility and durability, this series is suitable for high and low temperatures and other severe conditions, providing a dependable solution for critical process applications.

D Series Drawings

Description	Part No. / Draw No.	PDF
D Series Switch Box Envelope and Mounting Dimensions	DABAA211100
D Series Switch Box Envelope and Mounting Dimensions	DABAC211100
D Series Switch Box Envelope and Mounting Dimensions	DABAD211100
D Series Switch Box Envelope and Mounting Dimensions	DABAF211100
3Way-Diverter-Indication

The C Series limit switches are designed for reliable valve position indication in the most demanding environments. Constructed from high-grade stainless in 304 or 316 the unit offers outstanding corrosion resistance, making it ideal for use in marine, chemical, and other aggressive industrial environments.

C Series Drawings

Description	Part No. / Draw No.	PDF
C Series Switch Box Envelope and Mounting Dimensions	CABAA211100
3Way-Diverter-Indication

The B Series is a compact and cost-effective valve position indicator provides both local visibility and remote signal output for accurate monitoring of valve status. Designed for reliability and durability, it supports a variety of built-in switch options, making it adaptable to a wide range of industrial applications.

Engineered to perform under extreme conditions, the unit operates effectively in high and low temperatures and other severe environments. Its rugged construction and practical design ensure consistent performance, even in the harshest settings.

The device supports multiple signal output configurations, allowing seamless integration with control systems. Certified to NEMA 4, NEMA 4X, and IP67 standards, it delivers dependable operation in demanding environments where water, dust, or corrosion resistance is critical.

Options

• Flat Cover
• Additional NTP Conduit Entries
• 4-20mA Feedback
• Visual Indicator:
  • Red and Green
  • 3-way Path Options
  • Customized 2-way

B Series Drawings

Description	Part No. / Draw No.	PDF
B Series Switch Box Envelope and Mounting Dimensions	BABAA211100
B Series Switch Box Envelope and Mounting Dimensions	BABAA212101
B Series Switch Box Envelope and Mounting Dimensions	BABAA414100
B Series Switch Box Envelope and Mounting Dimensions	BABAC211100
B Series Switch Box Envelope and Mounting Dimensions	BABAD211100
B Series Switch Box Envelope and Mounting Dimensions	BABAE211100
B Series Switch Box Envelope and Mounting Dimensions	BABAE212101
B Series Switch Box Envelope and Mounting Dimensions	BABAF211100
B Series Switch Box Envelope and Mounting Dimensions	BABAH211100
B Series Switch Box Envelope and Mounting Dimensions	BABAI414100
B Series Switch Box Envelope and Mounting Dimensions	BABAJ015100
3Way-Diverter-Indication

The A Series limit switch box is designed for corrosive environments, featuring a durable anti-corrosion construction and a transparent upper cover that allows for clear visual identification of internal components. The integrated position indicator ensures safe and reliable valve status monitoring, supporting both on-site visual and remote signal indication.

Key Features

• Transparent cover for easy inspection
• Reliable on-site and remote valve position indication
• Superior corrosion resistance for harsh environments
• Compatible with various signal outputs
• Direct cylinder mounting, NAMUR/ISO 5211 compliant

A Series Drawings

Description	Part No. / Draw No.	PDF
A Series Switch Box Envelope and Mounting Dimensions	AAEAA211100
3Way-Diverter-Indication