Lauritz Knudsen Accessory for MCCBs: Auxilary Contact + Trip Alarm Contact | 1C/O + 1C/O Right | Suitable for DU100D/DU125D/DU100H/DU125H/DU250/DU250C/DN0/DN1
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Lauritz Knudsen Accessory for MCCBs: Auxilary Contact + Trip Alarm Contact | 1C/O + 1C/O Right | Suitable for DU100D/DU125D/DU100H/DU125H/DU250/DU250C/DN0/DN1
- Description
- Specifications
- Documents
- Warranty
- Reviews
Description
About the Product
The Lauritz Knudsen CM97890OOOO is a combined auxiliary & trip alarm contact module, featuring 1 Changeover (1C/O) auxiliary contact & 1 Changeover (1C/O) trip alarm contact, designed for compatibility with a wide range of MCCB series including DU100D, DU125D, DU100H, DU125H, DU250, DU250C, DN0, & DN1.
This dual-function accessory provides comprehensive monitoring capability by delivering two distinct signals:
The auxiliary contact (1C/O) indicates the ON/OFF status of the MCCB
The trip alarm contact (1C/O) signals when the MCCB has tripped due to a fault (overload or short circuit)
This combination allows operators & control systems to clearly differentiate between normal switching operations & fault conditions, significantly improving system diagnostics & response time.
The right-side mounting configuration ensures proper integration with compatible MCCB frames while offering flexibility in panel layout & wiring.
With two separate changeover outputs, each providing Common (C), Normally Open (NO), & Normally Closed (NC) contacts, this accessory supports integration with PLCs, building management systems (BMS), annunciation panels, & alarm circuits.
Designed for high reliability & ease of installation, the module integrates seamlessly with the MCCB without affecting its protective performance. It is particularly suited for applications requiring combined operational status monitoring & fault indication within a single compact module.
How the Mechanism Works
The switching contacts carry normal current & open when the trip system detects an overload or short-circuit condition, interrupting the fault path.
Electrical Configuration
Choose the stated pole configuration & current, voltage, & breaking-capacity ratings to match the circuit & its prospective fault level.
Construction & Design
A compact insulating body integrates the operating mechanism, contacts, arc-control components, terminals, & trip elements for reliable circuit protection.
Safety & Protection
Provides circuit isolation & overcurrent protection when correctly selected, coordinated, installed, & operated within its published ratings.
Mounting & Durability
Install on the applicable DIN rail or panel system with secure conductors, correct torque, & adequate enclosure clearance for repeated operation.
Application Domains
Suitable for power distribution & circuit protection in residential, commercial, industrial, infrastructure, & OEM panels.
Key Features
• Combined Auxiliary + Trip Alarm Contact module
• Configuration: 1C/O (Auxiliary) + 1C/O (Trip Alarm)
• Provides both:
• ON/OFF status indication
• Fault trip indication
• Right-side mounting design
• Compatible with:
• DU100D series
• DU125D series
• DU100H series
• DU125H series
• DU250 series
• DU250C series
• DN0 / DN1 series
• Dual independent outputs with NO/NC flexibility
• Enables integration with PLCs, BMS, & alarm systems
• Improves system diagnostics & monitoring accuracy
• Compact & easy to install
• Reliable & durable construction
Applications
• Industrial control & switchgear panels
• Commercial power distribution systems
• Building management systems (BMS)
• Automation & PLC systems
• Alarm & annunciation systems
• Electrical panels requiring combined status & fault monitoring
FAQs
1. What is the purpose of this combined module?
Ans: It provides both MCCB ON/OFF status indication & fault trip indication in one unit.
2. What does 1C/O + 1C/O mean?
Ans: It means there are two separate changeover contacts—one for auxiliary (status) & one for trip alarm (fault).
3. How is this better than separate modules?
Ans: It combines both functions into a single compact accessory, saving space & simplifying installation.
4. What does “Right” indicate?
Ans: It refers to the right-side mounting position on the MCCB.
5. Which MCCBs is this compatible with?
Ans: It is compatible with DU100D, DU125D, DU100H, DU125H, DU250, DU250C, DN0, & DN1 series.
6. Does it affect MCCB protection?
Ans: No, it only provides signaling & does not interfere with breaker operation.
Overview
| Other Specification 1 | Auxiliary+Trip Alarm Contact |
|---|---|
| Other Specification 2 | (1C/O+1C/O Right) |
| 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 CM97890OOOO is a combined auxiliary & trip alarm contact module, featuring 1 Changeover (1C/O) auxiliary contact & 1 Changeover (1C/O) trip alarm contact, designed for compatibility with a wide range of MCCB series including DU100D, DU125D, DU100H, DU125H, DU250, DU250C, DN0, & DN1.
This dual-function accessory provides comprehensive monitoring capability by delivering two distinct signals:
The auxiliary contact (1C/O) indicates the ON/OFF status of the MCCB
The trip alarm contact (1C/O) signals when the MCCB has tripped due to a fault (overload or short circuit)
This combination allows operators & control systems to clearly differentiate between normal switching operations & fault conditions, significantly improving system diagnostics & response time.
The right-side mounting configuration ensures proper integration with compatible MCCB frames while offering flexibility in panel layout & wiring.
With two separate changeover outputs, each providing Common (C), Normally Open (NO), & Normally Closed (NC) contacts, this accessory supports integration with PLCs, building management systems (BMS), annunciation panels, & alarm circuits.
Designed for high reliability & ease of installation, the module integrates seamlessly with the MCCB without affecting its protective performance. It is particularly suited for applications requiring combined operational status monitoring & fault indication within a single compact module.
How the Mechanism Works
The switching contacts carry normal current & open when the trip system detects an overload or short-circuit condition, interrupting the fault path.
Electrical Configuration
Choose the stated pole configuration & current, voltage, & breaking-capacity ratings to match the circuit & its prospective fault level.
Construction & Design
A compact insulating body integrates the operating mechanism, contacts, arc-control components, terminals, & trip elements for reliable circuit protection.
Safety & Protection
Provides circuit isolation & overcurrent protection when correctly selected, coordinated, installed, & operated within its published ratings.
Mounting & Durability
Install on the applicable DIN rail or panel system with secure conductors, correct torque, & adequate enclosure clearance for repeated operation.
Application Domains
Suitable for power distribution & circuit protection in residential, commercial, industrial, infrastructure, & OEM panels.
Key Features
• Combined Auxiliary + Trip Alarm Contact module
• Configuration: 1C/O (Auxiliary) + 1C/O (Trip Alarm)
• Provides both:
• ON/OFF status indication
• Fault trip indication
• Right-side mounting design
• Compatible with:
• DU100D series
• DU125D series
• DU100H series
• DU125H series
• DU250 series
• DU250C series
• DN0 / DN1 series
• Dual independent outputs with NO/NC flexibility
• Enables integration with PLCs, BMS, & alarm systems
• Improves system diagnostics & monitoring accuracy
• Compact & easy to install
• Reliable & durable construction
Applications
• Industrial control & switchgear panels
• Commercial power distribution systems
• Building management systems (BMS)
• Automation & PLC systems
• Alarm & annunciation systems
• Electrical panels requiring combined status & fault monitoring
FAQs
1. What is the purpose of this combined module?
Ans: It provides both MCCB ON/OFF status indication & fault trip indication in one unit.
2. What does 1C/O + 1C/O mean?
Ans: It means there are two separate changeover contacts—one for auxiliary (status) & one for trip alarm (fault).
3. How is this better than separate modules?
Ans: It combines both functions into a single compact accessory, saving space & simplifying installation.
4. What does “Right” indicate?
Ans: It refers to the right-side mounting position on the MCCB.
5. Which MCCBs is this compatible with?
Ans: It is compatible with DU100D, DU125D, DU100H, DU125H, DU250, DU250C, DN0, & DN1 series.
6. Does it affect MCCB protection?
Ans: No, it only provides signaling & does not interfere with breaker operation.
Overview
| Other Specification 1 | Auxiliary+Trip Alarm Contact |
|---|---|
| Other Specification 2 | (1C/O+1C/O Right) |
| 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.