LW30 Load Break Rotary Cam Switch | Panel Mount Power Changeover Isolator 25A-125A

LW30 Load Break Rotary Cam Switch | Panel Mount Power Changeover Isolator 25A-125A

LW30 series load break rotary switch is a panel-mounted power changeover & isolation switch certified with CE and CCC, covering 25A, 32A, 63A, 80A, 100A, 125A specifications under 690V AC. Designed with high-visibility yellow-red safety rotary handle, V0 flame retardant housing and thick pure copper contacts, it provides visible isolation break for safe equipment maintenance. Widely used in solar PV combiner boxes, CNC machine tools, industrial control cabinets and low-voltage distribution equipment. Factory direct supply with customizable switch functions and OEM service for global electrical export orders.

LW30 series load break rotary switch is a panel-mounted power changeover & isolation switch certified with CE and CCC, covering 25A, 32A, 63A, 80A, 100A, 125A specifications under 690V AC. Designed with high-visibility yellow-red safety rotary handle, V0 flame retardant housing and thick pure copper contacts, it provides visible isolation break for safe equipment maintenance. Widely used in solar PV combiner boxes, CNC machine tools, industrial control cabinets and low-voltage distribution equipment. Factory direct supply with customizable switch functions and OEM service for global electrical export orders.

1. Product Overview

LW30 load break rotary cam switch is a multi-functional panel embedded power conversion and isolation device developed for low-voltage industrial power systems, passing CE and CCC international safety certifications. This rotary cam switch integrates load breaking, circuit switching and safe isolation functions in one unit, with multiple optional current ratings (25A, 32A, 63A, 80A, 100A, 125A) and customizable multi-position contact logic to meet diverse circuit control demands.
The distinctive yellow-red dual-color safety handle delivers clear ON/OFF visual warning, while internal mechanical structure forms a visible isolation gap after power cut-off to fully comply with lockout-tagout maintenance safety standards. Equipped with V0 flame retardant insulating shell and thickened pure copper conductive contacts, the switch operates stably under 690V high working voltage. It serves as the main power disconnect switch for solar photovoltaic combiner boxes, machine tools, automation production lines and complete set distribution switchgear. As official direct factory sales, we provide spot stock delivery, bulk preferential pricing and custom function development for overseas electrical distributors and new energy engineering contractors.

2. Core Competitive Features

✅ CE & CCC Dual International Safety Certifications

Strictly tested and certified with CE (EU export standard) and CCC domestic mandatory certification, fully compliant for global electrical equipment export sales.

✅ High-Visibility Yellow-Red Safety Rotary Handle

Two-tone warning handle clearly distinguishes power ON/OFF state, effectively reminding operators to avoid accidental electric shock during equipment maintenance.

✅ Visible Isolation Break for Maintenance Safety

Internal cam contact structure creates obvious separation gap when switched to OFF position, meets international safety requirements for power lockout repair work.

✅ V0 Grade Flame Retardant Insulation Housing

Shell adopts high-temperature resistant V0 flame retardant PA plastic, anti-aging, anti-deformation and fire-proof, eliminating circuit fire risks inside sealed control cabinets.

✅ Thickened Pure Copper Conductive Contacts

All internal conductive terminals and contact pieces use high-purity thick brass, low contact resistance, stable power transmission without overheating under long-term full load operation.

✅ Wide Voltage & Multiple Current Specifications

Max rated voltage up to 690V AC; standard current options: 25A, 32A, 63A, 80A, 100A, 125A matching small, medium and large power industrial loads.

✅ Customizable Multi-Position Conversion Functions

Support customized cam contact logic, single circuit on-off, dual-circuit switching and multi-channel signal conversion according to customer engineering drawing demands.

✅ Standard Panel Embedded Mount Design

Unified cabinet panel opening size for quick installation, smooth rotary cam mechanism without jamming during frequent switching operations.

✅ Official Factory Direct Supply & Customization Support

Factory direct sales without intermediate markup, abundant ready stock for fast shipment, favorable tiered pricing for large export orders, private logo OEM available.

3. Main Product Specifications

ItemTechnical Parameter
ModelLW30 Load Break Rotary Cam Switch
CertificationsCE, CCC
Rated Working VoltageUp to 690V AC
Standard Rated Current25A / 32A / 63A / 80A / 100A / 125A Optional
Operation ModeManual rotary cam switching
Handle StyleYellow-Red High Visibility Safety Warning Handle
Housing MaterialV0 Grade Flame Retardant Insulating Plastic
Contact MaterialThickened Pure Copper Brass
Installation TypeCabinet Panel Embedded Mount
Safety FeatureVisible isolation break gap for lockout maintenance
Custom ServiceCustom multi-position circuit conversion logic, OEM private logo
Core ApplicationPV combiner box, CNC machine tool, industrial control cabinet main power isolation

4. Wide Application Scenarios

  • Solar photovoltaic combiner box main power isolation switch
  • CNC lathes, milling machines and mechanical processing equipment control panels
  • Industrial automation assembly line power distribution cabinets
  • Water pump, fan, HVAC and air compressor power cut-off protection
  • Construction machinery electrical control switchgear
  • Small low-voltage complete power distribution boxes
  • Agricultural solar irrigation equipment control panels

5. Installation & Operation Guide

  1. Cut standard matching opening on electrical cabinet panel, embed LW30 rotary switch into the hole and lock the rear fixing buckle tightly.
  2. Connect three-phase incoming and outgoing power cables to the bottom copper wiring terminals, fasten terminal screws to prevent loose contact heating.
  3. Rotate the yellow-red safety handle to OFF position: internal cam contacts separate completely to form visible isolation gap for safe maintenance.
  4. Rotate handle to ON position to close contacts and restore power supply to downstream electrical loads.
  5. For dual-circuit transfer function customized models, rotate handle to corresponding gear to switch between two independent power supply circuits.

6. Frequently Asked Questions (FAQ)

Q1: What certifications does LW30 load break rotary switch have?

A: It holds both CE EU export certification and CCC China mandatory safety certification, suitable for domestic and global overseas sales.

Q2: What current and voltage specifications are available for LW30 switch?

A: Standard current ratings: 25A, 32A, 63A, 80A, 100A, 125A maximum working voltage reaches 690V AC for industrial low-voltage power systems.

Q3: Can LW30 rotary cam switch be customized for special circuit conversion?

A: Yes, our factory supports custom cam contact logic, multi-position switching and special wiring functions based on customer engineering requirements.

Q4: Is this LW30 switch applicable for solar PV combiner boxes?

A: Definitely, its flame retardant housing, reliable isolation performance and CE certification make it widely used as main power disconnect for photovoltaic combiner boxes.

Q5: Do you support bulk export OEM customization for LW30 load break switches?

A: We are official direct manufacturer with large spot stock, offering competitive bulk pricing, private logo printing and customized export packaging for global electrical wholesale customers.

7. Factory Wholesale Advantages

  1. Direct factory official operation without middlemen, ultra-competitive ex-factory price for mass overseas export orders.
  2. Every finished LW30 rotary switch undergoes insulation withstand test and full load aging inspection before delivery to guarantee long service life.
  3. Professional electrical technical team provides specification selection, cabinet installation and custom circuit function technical support for PV & machinery engineering projects.
  4. Stable large-scale production capacity with fast delivery lead time, shockproof anti-collision export carton packaging to avoid damage during ocean transportation.
  5. Flexible OEM customization service including silk screen private brand logo, customized switch function and regional market special parameter adjustment.

1. Product Overview

LW30 load break rotary cam switch is a multi-functional panel embedded power conversion and isolation device developed for low-voltage industrial power systems, passing CE and CCC international safety certifications. This rotary cam switch integrates load breaking, circuit switching and safe isolation functions in one unit, with multiple optional current ratings (25A, 32A, 63A, 80A, 100A, 125A) and customizable multi-position contact logic to meet diverse circuit control demands.
The distinctive yellow-red dual-color safety handle delivers clear ON/OFF visual warning, while internal mechanical structure forms a visible isolation gap after power cut-off to fully comply with lockout-tagout maintenance safety standards. Equipped with V0 flame retardant insulating shell and thickened pure copper conductive contacts, the switch operates stably under 690V high working voltage. It serves as the main power disconnect switch for solar photovoltaic combiner boxes, machine tools, automation production lines and complete set distribution switchgear. As official direct factory sales, we provide spot stock delivery, bulk preferential pricing and custom function development for overseas electrical distributors and new energy engineering contractors.

2. Core Competitive Features

✅ CE & CCC Dual International Safety Certifications

Strictly tested and certified with CE (EU export standard) and CCC domestic mandatory certification, fully compliant for global electrical equipment export sales.

✅ High-Visibility Yellow-Red Safety Rotary Handle

Two-tone warning handle clearly distinguishes power ON/OFF state, effectively reminding operators to avoid accidental electric shock during equipment maintenance.

✅ Visible Isolation Break for Maintenance Safety

Internal cam contact structure creates obvious separation gap when switched to OFF position, meets international safety requirements for power lockout repair work.

✅ V0 Grade Flame Retardant Insulation Housing

Shell adopts high-temperature resistant V0 flame retardant PA plastic, anti-aging, anti-deformation and fire-proof, eliminating circuit fire risks inside sealed control cabinets.

✅ Thickened Pure Copper Conductive Contacts

All internal conductive terminals and contact pieces use high-purity thick brass, low contact resistance, stable power transmission without overheating under long-term full load operation.

✅ Wide Voltage & Multiple Current Specifications

Max rated voltage up to 690V AC; standard current options: 25A, 32A, 63A, 80A, 100A, 125A matching small, medium and large power industrial loads.

✅ Customizable Multi-Position Conversion Functions

Support customized cam contact logic, single circuit on-off, dual-circuit switching and multi-channel signal conversion according to customer engineering drawing demands.

✅ Standard Panel Embedded Mount Design

Unified cabinet panel opening size for quick installation, smooth rotary cam mechanism without jamming during frequent switching operations.

✅ Official Factory Direct Supply & Customization Support

Factory direct sales without intermediate markup, abundant ready stock for fast shipment, favorable tiered pricing for large export orders, private logo OEM available.

3. Main Product Specifications

ItemTechnical Parameter
ModelLW30 Load Break Rotary Cam Switch
CertificationsCE, CCC
Rated Working VoltageUp to 690V AC
Standard Rated Current25A / 32A / 63A / 80A / 100A / 125A Optional
Operation ModeManual rotary cam switching
Handle StyleYellow-Red High Visibility Safety Warning Handle
Housing MaterialV0 Grade Flame Retardant Insulating Plastic
Contact MaterialThickened Pure Copper Brass
Installation TypeCabinet Panel Embedded Mount
Safety FeatureVisible isolation break gap for lockout maintenance
Custom ServiceCustom multi-position circuit conversion logic, OEM private logo
Core ApplicationPV combiner box, CNC machine tool, industrial control cabinet main power isolation

4. Wide Application Scenarios

  • Solar photovoltaic combiner box main power isolation switch
  • CNC lathes, milling machines and mechanical processing equipment control panels
  • Industrial automation assembly line power distribution cabinets
  • Water pump, fan, HVAC and air compressor power cut-off protection
  • Construction machinery electrical control switchgear
  • Small low-voltage complete power distribution boxes
  • Agricultural solar irrigation equipment control panels

5. Installation & Operation Guide

  1. Cut standard matching opening on electrical cabinet panel, embed LW30 rotary switch into the hole and lock the rear fixing buckle tightly.
  2. Connect three-phase incoming and outgoing power cables to the bottom copper wiring terminals, fasten terminal screws to prevent loose contact heating.
  3. Rotate the yellow-red safety handle to OFF position: internal cam contacts separate completely to form visible isolation gap for safe maintenance.
  4. Rotate handle to ON position to close contacts and restore power supply to downstream electrical loads.
  5. For dual-circuit transfer function customized models, rotate handle to corresponding gear to switch between two independent power supply circuits.

6. Frequently Asked Questions (FAQ)

Q1: What certifications does LW30 load break rotary switch have?

A: It holds both CE EU export certification and CCC China mandatory safety certification, suitable for domestic and global overseas sales.

Q2: What current and voltage specifications are available for LW30 switch?

A: Standard current ratings: 25A, 32A, 63A, 80A, 100A, 125A maximum working voltage reaches 690V AC for industrial low-voltage power systems.

Q3: Can LW30 rotary cam switch be customized for special circuit conversion?

A: Yes, our factory supports custom cam contact logic, multi-position switching and special wiring functions based on customer engineering requirements.

Q4: Is this LW30 switch applicable for solar PV combiner boxes?

A: Definitely, its flame retardant housing, reliable isolation performance and CE certification make it widely used as main power disconnect for photovoltaic combiner boxes.

Q5: Do you support bulk export OEM customization for LW30 load break switches?

A: We are official direct manufacturer with large spot stock, offering competitive bulk pricing, private logo printing and customized export packaging for global electrical wholesale customers.

7. Factory Wholesale Advantages

  1. Direct factory official operation without middlemen, ultra-competitive ex-factory price for mass overseas export orders.
  2. Every finished LW30 rotary switch undergoes insulation withstand test and full load aging inspection before delivery to guarantee long service life.
  3. Professional electrical technical team provides specification selection, cabinet installation and custom circuit function technical support for PV & machinery engineering projects.
  4. Stable large-scale production capacity with fast delivery lead time, shockproof anti-collision export carton packaging to avoid damage during ocean transportation.
  5. Flexible OEM customization service including silk screen private brand logo, customized switch function and regional market special parameter adjustment.

Data Download

LVMA low voltage selection manual

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