Lauritz Knudsen Bypass Switch CZ1, 125A | 4 Pole | Open Execution with extended handle | 440V AC
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Lauritz Knudsen Bypass Switch CZ1, 125A | 4 Pole | Open Execution with extended handle | 440V AC
- Description
- Specifications
- Documents
- Warranty
- Reviews
Description
About the Product
The Lauritz Knudsen CZ1 Bypass 125A 4P 440V AC is a high-performance bypass switching device designed to provide manual override & uninterrupted power flow in electrical systems. It is commonly used alongside automatic transfer systems or control panels where planned maintenance or emergency bypass is required.
This model features an extended handle for convenient external operation, ensuring safe & easy control without direct contact with internal components. Its 4-pole (4P) configuration ensures complete isolation of all conductors including neutral, offering enhanced safety in critical applications.
Designed for industrial-grade reliability, the CZ1 bypass unit ensures operational flexibility while maintaining the integrity of the power system.
Purpose & Function
This bypass switch is designed to ensure flexibility & continuous operation:
• Provides manual bypass of automatic or controlled systems
• Maintains uninterrupted power supply during maintenance
• Enables safe isolation & control of electrical circuits
• Allows easy switching using an extended external handle
• Enhances operational reliability & system flexibility
Electrical Configuration
• Type: Bypass Switch
• Series: CZ1
• Current rating: 125A
• Rated voltage: 440V AC
• Poles: 4 Pole (4P)
• Operation: Manual with extended handle
• Function: Bypass operation & circuit isolation
Construction & Design
The switch is built for durability & ease of operation:
• Heavy-duty industrial-grade construction
• Extended handle for safe & convenient external operation
• Compact & robust design for panel installation
• High-quality contacts for reliable switching performance
• Designed for integration with control panels & switchgear
Safety & Protection
• 4-pole configuration ensures full circuit isolation including neutral
• Reduces risk during maintenance & system servicing
• Provides safe manual control in emergency situations
• Protects connected equipment from improper switching
• Enhances operator safety through external handle operation
Mounting & Installation
• Suitable for panel mounting
• Extended handle allows operation without opening enclosure
• Easy integration with existing electrical systems
• Compatible with industrial control panels & switchgear
• Supports organized & secure wiring setup
Application Domains
• Industrial power distribution systems
• Commercial electrical installations
• Generator & ATS bypass systems
• Control panels & switchgear
• Maintenance bypass applications
• Critical power management systems
Key Features
• 125A current rating for medium-load applications
• 440V AC operation for three phase systems
• 4-pole configuration for complete electrical isolation
• Extended handle for safe external operation
• Reliable bypass functionality for maintenance operations
• Durable industrial-grade construction
Applications
• Bypass systems for automatic transfer switches (ATS)
• Industrial & commercial power panels
• Generator backup systems
• Electrical control & distribution boards
• Critical power continuity applications
FAQs
1. What is a bypass switch used for?
Ans: A bypass switch allows manual override of a system to maintain power supply during maintenance or emergencies.
2. What does 4P mean in this product?
Ans: 4P (four-pole) means all phases & neutral are isolated for maximum safety.
3. What is the benefit of an extended handle?
Ans: It allows safe operation of the switch from outside the panel without direct contact with live parts.
4. Where is this switch typically used?
Ans: It is used in ATS systems, generator panels, & industrial control panels.
5. Is it suitable for industrial applications?
Ans: Yes, it is designed for industrial & commercial environments requiring reliable bypass capability.
6. Why is bypass functionality important?
Ans: It ensures uninterrupted power supply during maintenance or system faults.
7. Can it be integrated with existing systems?
Ans: Yes, it is designed for easy integration with standard electrical panels & control systems.
Overview
| Rated Operational Current (A) | 125 |
|---|---|
| Conformance to Standards | IS/IEC 60947-3, EN 60947-3 |
| Utilization Category | AC-23A |
| Operating Frequency(Hz) | 50/60 |
| Mechanical Life (No. of operating cycles) | 20000 |
| Rated Insulation Voltage Ui (V) | 1250 |
| Short Time Withstand for 1sec (kA) | 8 |
| Rated Operational Power (kW) | 75 |
| Rated Making Capacity@AC-23A (A) | 1000 |
| Version | Manual |
| No. of Poles | 4P |
| Electrical life (Operating Cylces) | 2000 |
| Mechanical Life (Operating Cycles) | 20000 |
| Maximum Al termination (sq.mm) | 2*185 |
| Mounting positions | All Orientations |
| Standard Accessories | Terminal Shroud,Phase Barriers,Source Separator, Extended handle with shaft |
| Pollution Degree | 3 |
| Rated impulse withstand voltage (Uimp) | 12 |
| Discount Percentage | Between 0-10 % |
Documents
Warranty
- All products listed in the price list are covered by a warranty against manufacturing defects for a period of 18* months from the date of purchase.
- For Lauritz Knudsen MCBs & Isolators mounted inside Lauritz Knudsen Distribution Boards, an extended warranty of 5 years is provided.
- In the event of a defect due to faulty workmanship or other associated reasons, the manufacturer will, at its discretion, remedy the defect or replace the faulty parts or the entire product as soon as possible, free of cost.
- This warranty is subject to proper usage and efficient maintenance and does not cover defects arising from fire, accidents, inefficient maintenance, faulty operation, or deliberate or accidental damage.
- The warranty does not cover damage to power electronic components such as thyristors & IGBTs, which primarily fail due to over-temperature or over-voltage. Users must take adequate precautions to eliminate such conditions.
- The manufacturer shall not be responsible or liable for any special, incidental, social, or consequential losses (including loss of profits), punitive damages, injury, or damages of any kind solely attributable to defect or failure of its products.
- The manufacturer shall not be liable in any manner for issues related to or failure in the performance of any other equipment to which the product is connected.
Reviews
Description
About the Product
The Lauritz Knudsen CZ1 Bypass 125A 4P 440V AC is a high-performance bypass switching device designed to provide manual override & uninterrupted power flow in electrical systems. It is commonly used alongside automatic transfer systems or control panels where planned maintenance or emergency bypass is required.
This model features an extended handle for convenient external operation, ensuring safe & easy control without direct contact with internal components. Its 4-pole (4P) configuration ensures complete isolation of all conductors including neutral, offering enhanced safety in critical applications.
Designed for industrial-grade reliability, the CZ1 bypass unit ensures operational flexibility while maintaining the integrity of the power system.
Purpose & Function
This bypass switch is designed to ensure flexibility & continuous operation:
• Provides manual bypass of automatic or controlled systems
• Maintains uninterrupted power supply during maintenance
• Enables safe isolation & control of electrical circuits
• Allows easy switching using an extended external handle
• Enhances operational reliability & system flexibility
Electrical Configuration
• Type: Bypass Switch
• Series: CZ1
• Current rating: 125A
• Rated voltage: 440V AC
• Poles: 4 Pole (4P)
• Operation: Manual with extended handle
• Function: Bypass operation & circuit isolation
Construction & Design
The switch is built for durability & ease of operation:
• Heavy-duty industrial-grade construction
• Extended handle for safe & convenient external operation
• Compact & robust design for panel installation
• High-quality contacts for reliable switching performance
• Designed for integration with control panels & switchgear
Safety & Protection
• 4-pole configuration ensures full circuit isolation including neutral
• Reduces risk during maintenance & system servicing
• Provides safe manual control in emergency situations
• Protects connected equipment from improper switching
• Enhances operator safety through external handle operation
Mounting & Installation
• Suitable for panel mounting
• Extended handle allows operation without opening enclosure
• Easy integration with existing electrical systems
• Compatible with industrial control panels & switchgear
• Supports organized & secure wiring setup
Application Domains
• Industrial power distribution systems
• Commercial electrical installations
• Generator & ATS bypass systems
• Control panels & switchgear
• Maintenance bypass applications
• Critical power management systems
Key Features
• 125A current rating for medium-load applications
• 440V AC operation for three phase systems
• 4-pole configuration for complete electrical isolation
• Extended handle for safe external operation
• Reliable bypass functionality for maintenance operations
• Durable industrial-grade construction
Applications
• Bypass systems for automatic transfer switches (ATS)
• Industrial & commercial power panels
• Generator backup systems
• Electrical control & distribution boards
• Critical power continuity applications
FAQs
1. What is a bypass switch used for?
Ans: A bypass switch allows manual override of a system to maintain power supply during maintenance or emergencies.
2. What does 4P mean in this product?
Ans: 4P (four-pole) means all phases & neutral are isolated for maximum safety.
3. What is the benefit of an extended handle?
Ans: It allows safe operation of the switch from outside the panel without direct contact with live parts.
4. Where is this switch typically used?
Ans: It is used in ATS systems, generator panels, & industrial control panels.
5. Is it suitable for industrial applications?
Ans: Yes, it is designed for industrial & commercial environments requiring reliable bypass capability.
6. Why is bypass functionality important?
Ans: It ensures uninterrupted power supply during maintenance or system faults.
7. Can it be integrated with existing systems?
Ans: Yes, it is designed for easy integration with standard electrical panels & control systems.
Overview
| Rated Operational Current (A) | 125 |
|---|---|
| Conformance to Standards | IS/IEC 60947-3, EN 60947-3 |
| Utilization Category | AC-23A |
| Operating Frequency(Hz) | 50/60 |
| Mechanical Life (No. of operating cycles) | 20000 |
| Rated Insulation Voltage Ui (V) | 1250 |
| Short Time Withstand for 1sec (kA) | 8 |
| Rated Operational Power (kW) | 75 |
| Rated Making Capacity@AC-23A (A) | 1000 |
| Version | Manual |
| No. of Poles | 4P |
| Electrical life (Operating Cylces) | 2000 |
| Mechanical Life (Operating Cycles) | 20000 |
| Maximum Al termination (sq.mm) | 2*185 |
| Mounting positions | All Orientations |
| Standard Accessories | Terminal Shroud,Phase Barriers,Source Separator, Extended handle with shaft |
| Pollution Degree | 3 |
| Rated impulse withstand voltage (Uimp) | 12 |
| Discount Percentage | Between 0-10 % |
Documents
Warranty
- All products listed in the price list are covered by a warranty against manufacturing defects for a period of 18* months from the date of purchase.
- For Lauritz Knudsen MCBs & Isolators mounted inside Lauritz Knudsen Distribution Boards, an extended warranty of 5 years is provided.
- In the event of a defect due to faulty workmanship or other associated reasons, the manufacturer will, at its discretion, remedy the defect or replace the faulty parts or the entire product as soon as possible, free of cost.
- This warranty is subject to proper usage and efficient maintenance and does not cover defects arising from fire, accidents, inefficient maintenance, faulty operation, or deliberate or accidental damage.
- The warranty does not cover damage to power electronic components such as thyristors & IGBTs, which primarily fail due to over-temperature or over-voltage. Users must take adequate precautions to eliminate such conditions.
- The manufacturer shall not be responsible or liable for any special, incidental, social, or consequential losses (including loss of profits), punitive damages, injury, or damages of any kind solely attributable to defect or failure of its products.
- The manufacturer shall not be liable in any manner for issues related to or failure in the performance of any other equipment to which the product is connected.