| Customization: | Available |
|---|---|
| Breaking Capacity: | Low Voltage Circuit Breakers |
| Operation: | Manual Type |
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The DAM2 (CM1) series circuit breaker is designed to be a powerhouse solution, featuring a rated insulation voltage of 800V. Perfectly tailored for AC distribution networks at both 50Hz and 60Hz, it effectively manages a rated working voltage up to 690V and a rated current capacity up to 1250A. This makes it an ideal choice for power distribution and circuit protection, offering extensive safeguarding against overloads, short-circuits, and under-voltage conditions. Its capability for infrequent circuit conversions and motor starts further emphasizes its remarkable versatility. Additionally, the design accommodates both vertical and horizontal installation, providing outstanding flexibility. Marked by the isolation symbol, the DAM2 MCCB adheres to IEC60947-2 standards for low-voltage switchgear and control equipment, establishing its status as a premier circuit breaker.
1. Ambient air temperature: Must consistently range between -5ºC and +40ºC, with a daily average not exceeding +35ºC.
2. Altitude: For optimal performance and reliability, installations should be at altitudes of 2000 meters or below.
3. Atmospheric conditions: At +40ºC, relative humidity should be under 50%. Higher humidity levels are permissible at lower temperatures, with a maximum average relative humidity not exceeding 90% and a minimum average monthly temperature of +25ºC, considering potential condensation due to temperature fluctuations.
4. Pollution Degree: 3.
Selection of instructions
Classified by pole types:
Type A: The N-pole lacks over-current release components, is continuously connected, and operates independently of the other three poles.
Type B: The N-pole is devoid of over-current release components but functions in coordination with the other three poles, activating before deactivation.
Type C: Equipped with over-current release components, the N-pole operates in unison with the other three poles, activating prior to deactivation.
Classified by rated current of over-current release:
DAM2-63 MCCB Available in a diverse range of nine ratings: 6, 10, 16, 20, 25, 32, 40, 50, and 63 A, catering to various needs.
DAM2-100 MCCB Offered in nine versatile ratings: 16, 20, 25, 32, 40, 50, 63, 80, and 100 A, ensuring flexibility and superior performance.
DAM2-250 MCCB Available in an impressive range of seven ratings: 100, 125, 140, 160, 180, 200, 225, and 250 A, providing exceptional performance capabilities.
DAM2-400 MCCB Offered in five unique ratings: 225, 250, 315, 350, and 400 A, providing tailored solutions for diverse applications.
DAM2-630 MCCB Discover the pinnacle of dependability with our circuit breakers, available in three robust ratings of 400, 500, and 630 A. Each unit is crafted with meticulous precision, ensuring your electrical systems are fortified with unrivaled strength and outstanding performance.
DAM2-800 MCCB Discover our exceptional 250A Fixed Type Circuit Breaker, masterfully crafted to offer a choice among three remarkable ratings: 630, 700, and 800 A. Strengthen your systems with unwavering reliability and robust performance that consistently rises to meet your highest demands.
DAM2-1250 MCCB: Transform your electrical setup with our expertly crafted circuit breakers, offering immense versatility and power. With ratings of 800, 1000, and 1250 A, each model is engineered to exceed your rigorous standards, providing performance that goes beyond expectations.
Remark: For applications requiring specialized precision, our 6A version is meticulously crafted in the electromagnetic (instantaneous) type. Its distinctive features are designed for precision tasks, ensuring accuracy where it is paramount and making it unsuitable for general use.
Wiring Options: Experience unmatched installation flexibility with our versatile wiring solutions. Choose from front-of-board, back-of-board, or insertion type configurations, enabling custom solutions that seamlessly meet your specific requirements with ease.
Over-Current Release Patterns: Our extensive range of over-current release patterns, including thermodynamic-electromagnetic (dual) and electromagnetic (instantaneous) designs, are meticulously crafted to satisfy a variety of operational needs, ensuring exceptional reliability and robust performance.
Outfit Options: Tailor your circuit breaker to perfection with our adaptable outfit options. Whether outfitted or not, these options offer seamless adaptability to meet your unique application requirements.
Outfit Details: Elevate your circuit breaker with a selection of versatile accessories. Inner options include shunt release, under-voltage release, auxiliary contact, and alarm contact, while our outer enhancements feature advanced turning handles and power-driven mechanisms for impeccable integration and functionality.
Breaking Capacity: Discover a complete spectrum of breaking capacities with our expertly engineered options: L-standard, M-second high, and H-high breaking types. Each is crafted with precision to cater to diverse applications, guaranteeing unmatched accuracy and reliability.
1. Instantaneous Action Characteristics: Experience precise distribution with circuit breakers set at 10In±20%, and for the DAM2-1250 model, 7In±20%. Motor protection breakers ensure steadfast protection with a setting value of 12In±20%.
2. Rated Values: For comprehensive insights into our circuit breakers' capabilities, refer to Table 2 for a detailed overview of rated values, providing essential specifications at your fingertips.
3. Ambient Temperature: At a temperature of +40ºC, find the detailed over-current release characteristics for distribution circuit breakers in Table 3. For motor protection circuit breakers, refer to Table 4, ensuring optimal performance under varying conditions.
Rated Value: Delve into the intricate specifications of rated values for circuit breakers, each detail tailored to deliver reliable, efficient performance across diverse scenarios, ensuring consistent dependability.
| Model | Pole | Rated current (A) | Rated operating voltage (V) |
Rated insulation voltage (V) |
Rated ultimate short - circuit breaking capacity (Icu) | Flashover distance(mm) |
||
| Test voltage (V) | Icu (kA) | Ics (kA) | ||||||
| DAM2L-63 | 3 | 10,16,20,25, 32,40,50,63 |
400 | 500 | 400×1.10 | 25 | 18 | 0 |
| DAM2M-63 | 3,4 | 50 | 35 | |||||
| DAM2L-100 | 3,4 | 16,20,25,32,40, 50,63,80,100 |
400 | 800 | 30 | 22 | ≤50 | |
| DAM2M-100 | 2,3,4 | 50 | 35 | |||||
| DAM2H-100 | 3 | 85 | 50 | |||||
| DAM2L-100 | 3,4 | 690 | 10 | 5 | ||||
| DAM2M-100 | 2,3,4 | 20 | 10 | |||||
| DAM2L-225 | 3,4 | 100,125,140, 160,180,200,225 |
400 | 800 | 35 | 25 | ||
| TXCM1-225 | 2,3,4 | 50 | 35 | |||||
| DAM2H-225 | 3 | 85 | 50 | |||||
| DAM2L-225 | 3,4 | 690 | 10 | 5 | ||||
| DAM2M-225 | 2,3,4 | 20 | 10 | |||||
| DAM2L-400 | 3 | 225,250,315, 350,400 |
400 | 800 | 50 | 35 | ≤100 | |
| DAM2M-400 | 3,4 | 65 | 42 | |||||
| DAM2H-400 | 3 | 100 | 65 | |||||
| DAM2L-400 | 3 | 690 | 15 | 8 | ||||
| DAM2M-400 | 3,4 | 20 | 10 | |||||
| DAM2L-630 | 3 | 400,500,630 | 400 | 800 | 50 | 35 | ||
| DAM2M-630 | 3,4 | 65 | 42 | |||||
| DAM2H-630 | 3 | 100 | 65 | |||||
| DAM2L-630 | 3 | 6910 | 15 | 8 | ||||
| DAM2M-630 | 3,4 | 20 | 10 | |||||
| DAM2M-800 | 3 | 630,700,800 | 400 | 800 | 75 | 50 | ||
| DAM2H-800 | 3 | 100 | 65 | |||||
| DAM2M-800 | 3 | 4690 | 30 | 15 | ||||
| DAM2-1250 | 3 | 800,1000,1250 | 400 | 800 | 85 | 42 | ||
| DAM2-1250 | 3 | 690 | 25 | 12.5 | ||||
Note: For 2-pole and 4-pole circuit breakers categorized as L, M, and H types, the breaking index for each type aligns with that of the M-type, providing consistent and uniform performance across all categories.
Inverse Time Breaking Action: Explore the over-current release characteristics designed for power distribution, ensuring unwavering protection when all poles are energized, offering steadfast safeguarding throughout.
| No. | Test current | I/In | Set time | Initial state |
| 1 | Conventional non-tripping current | 1.05 | 2h(In>63A),1h(In≤63A) | Cold |
| 2 | Conventional non-tripping current | 1.30 | 2h(In>63A),1h(In≤63A) | Immediately after Test 1 |
Instantaneous Action Characteristics: Distribution circuit breakers offer precise setting values of 10In±20%, while motor protection circuit breakers provide robust protection with a setting of 12In±20%, ensuring reliable performance across various scenarios.
Inverse Time Breaking Action: Step into the future of cutting-edge motor protection technology with our innovative over-current release characteristics. Meticulously engineered for the utmost reliability, these characteristics provide steadfast safeguarding across all poles, ensuring your operations are always secure. Trust in our advanced solution for unwavering protection, delivering consistent reliability every step of the way.
| No. | I/In | Set time | Initial state | Remark |
| 1 | 1.0 | >2h | Cold | |
| 2 | 1.2 | ≤2h | Immediately after Test 1 | |
| 3 | 1.5 | ≤4min | Cold | 10≤n≤225 |
| ≤8min | 225 < in ≤ 630 | |||
| 4 | 7.2 | 4s≤T≤10s | Cold | 10≤In≤225 |
| 6s≤T≤20s | 225 < in ≤ 630 |
Accessories: Explore our comprehensive selection of accessories, each one meticulously crafted to enhance the functionality and versatility of our circuit breakers. Our precision-engineered accessories are designed to optimize your system's performance and adaptability, offering a tailored solution that meets your unique needs.
1. Internal Accessories of Circuit Breakers: Discover a curated range of internal enhancements for our circuit breakers, designed to elevate operational excellence and offer unmatched customization. These enhancements ensure your systems perform at their peak potential, transforming your operations.
1.1 Shunt Release: Our shunt release exemplifies cutting-edge design married with precision engineering. It is crafted to ensure optimal functionality for circuit breakers, providing superior efficiency and reliability in every application.
Shunt Release Voltage: Engineered for superior efficiency, our shunt release operates with a rated control supply voltage of AC50Hz at 230V and 400V, or DC at 110V, 220V, and 24V. It promises robust functionality across an extensive voltage range of 70% to 110%, ensuring seamless and reliable operations every time.
DC24V Shunt Release: For unwavering reliability, it is essential to adhere to the specified maximum copper wire lengths, crucial for the optimal functioning of the shunt release. This meticulous attention to detail guarantees consistent performance.
| Rated control supply voltage Uc(DC24V)/Conductor area |
1.5mm² | 2.5mm² |
| 100%Uc 85%Uc |
150m 100m |
250m 160m |
Design Recommendations: If the specified table requirements are not met, we strongly recommend designing the shunt release control circuit as prescribed. This ensures peak effectiveness, operational assurance, and consistent performance every single time.
1.2 Under-Voltage Release: Discover unparalleled reliability with our expertly crafted under-voltage release, designed to deliver unwavering performance. It consistently enhances operational safety and efficiency, offering you peace of mind in every use.
Under-Voltage Operation: Experience unmatched dependability with our precisely engineered under-voltage release, ensuring steadfast breaker performance amid voltage fluctuations within the 70% to 35% range of the rated level. It delivers solid protection and peace of mind with every operation.
Under-Voltage Protection: Protect your operations with our advanced feature that prevents risky circuit breaker closures when voltage falls below 35% of the rated level. This formidable protection mechanism ensures secure closures above 85%, ensuring safety and excellence with every action.
Closing Mechanism: Our sophisticated under-voltage release mechanism guarantees robust circuit breaker closure at supply voltages beyond 85% of the rated value, providing a formidable barrier for seamless operations and a superior safety net for your systems.
Under-Voltage Ratings: Rated at AC50Hz for both 230V and 400V, our circuit breakers deliver unwavering performance across a wide range of applications, providing reliability and reassurance with every use.
400V.
Special Note: With meticulous engineering, our circuit breakers equipped with under-voltage release function flawlessly at the rated voltage, ensuring secure and dependable opening and closing actions, thereby reinforcing safety in every operation.
normally.
1.3 Pre-Paid Meter Dedicated Release
Pre-Paid Meter Dedicated Release: Rated at AC230/50Hz, this release epitomizes outstanding performance across a remarkable range of 65% to 110% of Ue. The circuit breaker executes a perfectly timed opening between 0.5 and 2 seconds upon control disengagement, ensuring unparalleled safety and reliability, providing peace of mind.
Wiring Diagram for Pre-Paid Meter Dedicated Release
1.4 Rated Values of Auxiliary Contacts and Alarm Contacts (Refer to Table 5)
| Classification | Conventional thermal current (Ith) | Rated current when
AC 400V Ie(AC-15) |
Rated current when
DC 220V Ie(DC-13) |
| Auxiliary contact | 3 | 0.4 | 0.15 |
| Alarm contact | 3 | 0.3 | 0.15 |
a. Auxiliary Contact
b. Alarm Contact
Our alarm contacts are ingeniously crafted to remain dormant during routine operations, transitioning seamlessly between open and closed states exclusively during free or fault tripping events. This design guarantees timely and precise alerts only when absolutely necessary, delivering peace of mind and operational reliability.
2. External Accessories for Circuit Breakers - Enhance your circuit breaker's functionality with our extensive range of premium external accessories, each designed to elevate performance and convenience.
2.1 Motor Operating Mechanism: Dive deep into the precise specifications, revealing comprehensive rated values and unique codes. All these details are meticulously cataloged for your convenience in Table 6.
| Category/Model | DAM2-63. 125. 250 | DAM2-400. 630. 800. 1250 |
| Structure type | Electromagnet | Motor |
| AC voltage code | AC50Hz,230V,400 | AC50Hz,230V,400 |
| DC voltage code | DC110V,220V | DC110V,220V |
NOTE: Following a circuit breaker trip activated by the electric operating mechanism, it is imperative to reset the circuit breaker before attempting any reclosing. This vital step ensures consistent and secure operations, affording unrivaled confidence and safety with every use.
Principle Diagram for the Opening and Closing Actions of DAM2-63,100,225 Electric Operating Mechanism (AC) - A detailed blueprint offering you an in-depth understanding of the mechanism's complex functionalities.
Principle Diagram for the Opening and Closing Actions of DAM2-400,630,800,1250 Electric Operating Mechanism (AC) - An indispensable guide designed to help you master the operations of these formidable mechanisms.
2.2 Installation Dimensions for the Manual Operating Mechanism (Refer to Table 10 for precise measurements) - Your ultimate resource for exact installation evaluations and assessments.
Diagram Depicting the Handle Mounting Hole Configuration for DAM2-63~800 - This detailed illustration is your comprehensive guide to ensuring proper and precise handle installation.
Overall Height Specifications of Electric/Manual Operating Mechanism for the Circuit Breaker (mm) (See Table 12 for detailed information) - Guaranteeing your installations meet stringent standards with precision and accuracy.
| Model | Total height of electric operating mechanism H |
Installation dimensions
of manual operating mechanism H |
| DAM2L-63 | 155 | 49 |
| DAM2M/H-63 | 164 | 49 |
| DAM2L-100 | 152 | 51 |
| DAM2M/H-100 | 170 | 51 |
| DAM2L-225 | 182 | 54 |
| DAM2M/H-225 | 199 | 54 |
| DAM2L/M/H-400 | 255 | 88 |
| DAM2M/H-630 | 262 | 89 |
| DAM2M/H-800 | 261 | 96 |
| DAM2H-1250 | 290 | 103 |
Quick Selection Guide for DAM2 Series Molded Case Circuit Breakers - Your go-to resource for selecting the perfect circuit breaker with confidence and precision, simplifying decision-making processes.
| Corresponding letters |
Function name | Function corresponding to the model |
| a | Model features | DAM2 Molded Case
Circuit Breaker |
| b | Frame rated current code | 63A,100A,225A,
400A,630A,800A, 1250A |
| c | Breaking capacity characteristic code |
L-standard breaking type;
M-second high breaking type; H-high breaking type |
| d | Operation mode code | No code for handle operation;
P for electric operation; Z for turning handle operation |
| e | Pole | 2-two poles;
3-three poles; 4-four poles |
| f | Release name | 2 Electromagnetic release;
3 Double release |
| g | Accessory | 00 Without accessory 08 Alarm contact 10 Shunt release 20 Auxiliary contact 30 Undervoltage release 40 Shunt release, Auxiliary contact 50 Shunt release, Undervoltage release 60 Two sets of auxiliary contacts 70 Auxiliary contact, Undervoltage release 18 Shunt release, Alarm contact 28 Auxiliary contact, Alarm contact 38 Undervoltage release, Alarm contact 48 Shunt release, Auxiliary contact, Alarm contact 58 Shunt release, Undervoltage release, Alarm contact 68 Two sets of auxiliary contacts, Alarm contact 78 Auxiliary contact, Undervoltage release, Alarm contact 10Y Pre-paid meter dedicated release 40Y Pre-paid meter dedicated release, Auxiliary contact 50Y Pre-paid meter dedicated release, Auxiliary contact, Undervoltage release 18Y Pre-paid meter dedicated release, Alarm contact 48Y Pre-paid meter dedicated release, Auxiliary contact, Alarm contact 58Y Pre-paid meter dedicated release, Undervoltage release, Alarm contact |
| h | Application | No code for distribution;
2 for motor protection |
| i | Conventional products | No code;
T for transparent cover products |
| j | Amperage | 10,16,20,25,32,63,80,100,125,160,180,200 ,225,250,315,350,400,500,630,700,800,1000 ,1250 |
Example: The DAM2L-100 / 33102 63A typifies a DAM2-type molded case circuit breaker, showcasing a frame rated current of 100A, standard breaking capacity, and handle operation. It features 3 poles, dual release, and shunt release, engineered specifically for motor protection, with an impressive rated current of 63A.
To achieve extraordinary performance, ensure every selection, installation, and operation is meticulously aligned with the product manual or complies with relevant national standards, guaranteeing optimal functionality and safety.
Note: The N-pole type of a 4P circuit breaker is categorized into A-type and B-type. Absent specific requirements, the default classification remains B-type, ensuring consistent reliability and functionality.
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