| Customization: | Available |
|---|---|
| Breaking Capacity: | Low Voltage Circuit Breakers |
| Operation: | Manual Type |
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The DAM2 (CM1) series circuit breaker is a marvel of engineering, offering a rated insulation voltage of 800V. Designed for AC distribution networks at 50Hz and 60Hz, it adeptly handles a rated working voltage up to 690V and a rated current capacity up to 1250A. This makes it the quintessential choice for power distribution and circuit protection, providing superior defense against overloads, short-circuits, and under-voltage conditions. Its capability for infrequent circuit conversions and motor starts highlights its extraordinary adaptability. Furthermore, its design accommodates both vertical and horizontal installations, delivering remarkable versatility. Distinguished by the isolation symbol, the DAM2 MCCB meets IEC60947-2 standards for low-voltage switchgear and control equipment, affirming its status as an elite circuit breaker.
1. Ambient Air Temperature: Should consistently range between -5ºC and +40ºC, with the daily average not surpassing +35ºC, ensuring optimal functionality.
2. Altitude: To guarantee peak performance and dependability, installations must be located at altitudes of 2000 meters or below.
3. Atmospheric Conditions: At +40ºC, the relative humidity should remain under 50%. Increased humidity levels are permitted at lower temperatures, with a maximum average relative humidity not exceeding 90% and a minimum average monthly temperature of +25ºC, accounting for potential condensation due to temperature fluctuations.
4. Pollution Degree: Rated at level 3, indicating optimal performance under specified environmental conditions.
Selection Instructions
Classification by Pole Types:
Type A: The N-pole is devoid of over-current release components, maintaining a continuous connection and operating independently of the other three poles.
Type B: The N-pole lacks over-current release components but coordinates with the other three poles, engaging prior to deactivation.
Type C: Equipped with over-current release components, the N-pole operates in concert with the other three poles, activating before deactivation.
Classification by Rated Current of Over-Current Release:
DAM2-63 MCCB Available in a comprehensive range of nine ratings: 6, 10, 16, 20, 25, 32, 40, 50, and 63 A, meeting diverse requirements.
DAM2-100 MCCB Presented in nine flexible ratings: 16, 20, 25, 32, 40, 50, 63, 80, and 100 A, ensuring adaptability and outstanding performance.
DAM2-250 MCCB Available in a formidable spectrum of seven ratings: 100, 125, 140, 160, 180, 200, 225, and 250 A, enabling exceptional performance capabilities.
DAM2-400 MCCB Available in five distinctive ratings: 225, 250, 315, 350, and 400 A, providing tailored solutions for a range of applications.
DAM2-630 MCCB Unveil the pinnacle of reliability with our exceptional circuit breakers, available in the powerful ratings of 400, 500, and 630 A. Each unit is crafted with meticulous precision, empowering your electrical systems with unparalleled strength and superior performance.
DAM2-800 MCCB Venture into our exquisite 250A Fixed Type Circuit Breaker, masterfully crafted to deliver unrivaled choices in the elite ratings of 630, 700, and 800 A. Bolster your systems with steadfast reliability and formidable strength that consistently surpass your highest expectations.
DAM2-1250 MCCB: Transform your electrical system with our expertly designed circuit breakers, offering immense adaptability and power. With remarkable ratings of 800, 1000, and 1250 A, each model is engineered to not only meet but exceed your stringent standards, delivering performance that goes beyond the ordinary.
Remark: For applications demanding specialized precision, our 6A version is ingeniously crafted in the electromagnetic (instantaneous) type. Its distinctive features cater to precision tasks, rendering it unsuitable for general use, ensuring pinpoint accuracy where it is paramount.
Wiring Options: Discover unparalleled installation versatility with our adaptable wiring solutions. Choose from front-of-board, back-of-board, or insertion type configurations, facilitating customized solutions that seamlessly align with your specific requirements and preferences.
Over-Current Release Patterns: Our comprehensive array of over-current release patterns, including thermodynamic-electromagnetic (dual) and electromagnetic (instantaneous) designs, are meticulously crafted to address a range of operational needs, delivering extraordinary reliability and high performance.
Outfit Options: Perfectly tailor your circuit breaker with our flexible outfit options. Whether outfitted or not, these selections ensure seamless adaptability to your unique application needs, providing a custom-fit solution to meet your exact specifications.
Outfit Details: Enhance your circuit breaker with a suite of versatile accessories. Inner options include shunt release, under-voltage release, auxiliary contact, and alarm contact, while outer enhancements feature sophisticated turning handles and power-driven mechanisms for flawless integration and seamless functionality.
Breaking Capacity: Experience the complete range of breaking capacities with our expertly designed options: L-standard, M-second high, and H-high breaking types. Each is meticulously crafted to meet a variety of applications, ensuring unmatched precision and reliability at every stage.
1. Instantaneous Action Characteristics: Achieve precise distribution with circuit breakers calibrated at 10In±20%, and for the DAM2-1250 model, 7In±20%. Motor protection breakers assure steadfast protection with a setting value of 12In±20%.
2. Rated Values: For a comprehensive understanding of our circuit breakers' performance, consult Table 2, which offers a detailed overview of rated values, providing crucial specifications at your fingertips.
3. Ambient Temperature: At +40ºC, consult Table 3 for detailed over-current release characteristics for distribution circuit breakers. For motor protection circuit breakers, refer to Table 4, ensuring optimal performance under varying conditions.
Rated Value: Immerse yourself in the detailed specifications of rated values for circuit breakers, each crafted to ensure dependable, efficient performance across diverse scenarios, delivering unwavering reliability.
| 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 classified as L, M, and H types, the breaking index for each type is equivalent to that of the M-type, ensuring consistent and uniform performance across all categories.
Inverse Time Breaking Action: Examine the over-current release characteristics crafted for power distribution, providing steadfast protection when all poles are powered, delivering unwavering safeguarding at every instance.
| 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 12In±20% setting, ensuring reliable performance in various scenarios.
Inverse Time Breaking Action: Discover the forefront of motor protection technology with our expertly designed over-current release characteristics. Crafted with precision, they provide steadfast safeguarding across all poles, ensuring unmatched reliability and protection. Trust our solution to secure your operations with unwavering dependability at every step.
| 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 extensive range of accessories, each meticulously crafted to enhance the functionality and versatility of our circuit breakers. Precision-engineered, they elevate your system's performance and adaptability, offering tailored solutions that meet your specific needs with unparalleled precision.
1. Internal Accessories of Circuit Breakers: Uncover a distinctive selection of internal enhancements for our circuit breakers. These components are thoughtfully designed to elevate operational excellence and enable unprecedented customization, ensuring your systems perform at their peak potential with effortless efficiency.
1.1 Shunt Release: Our shunt release exemplifies innovative design and precision engineering. Created for optimal functionality, it guarantees superior efficiency and unmatched reliability in every circuit breaker deployment.
Shunt Release Voltage: Crafted for unmatched 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 ensures robust performance over an extensive 70% to 110% voltage range, promising seamless and reliable operations every time.
DC24V Shunt Release: To ensure unwavering reliability, adhering to specified maximum copper wire lengths is essential for optimal shunt release performance. This attention to detail guarantees consistent and superior functionality.
| Rated control supply voltage Uc(DC24V)/Conductor area |
1.5mm² | 2.5mm² |
| 100%Uc 85%Uc |
150m 100m |
250m 160m |
Design Recommendations: If specifications are unmet, we strongly recommend designing the shunt release control circuit as detailed to ensure peak effectiveness and operational assurance, every single time.
1.2 Under-Voltage Release: Experience exceptional reliability with our under-voltage release, expertly crafted to deliver unyielding performance. It enhances operational safety and efficiency, providing peace of mind.
Under-Voltage Operation: Embrace unparalleled dependability with our precisely engineered under-voltage release. It ensures steadfast breaker performance amid voltage fluctuations within the 70% to 35% range, offering solid protection and reassurance.
Under-Voltage Protection: Safeguard your operations with our advanced feature that prevents risky circuit breaker closures when voltage dips below 35%. This formidable mechanism guarantees secure closures above 85%, ensuring consistent safety and excellence.
Closing Mechanism: Our sophisticated under-voltage release mechanism ensures robust circuit breaker closure at supply voltages beyond 85%. It acts as a formidable barrier, promising seamless operations and offering a superior safety net for your systems.
Under-Voltage Ratings: Rated at AC50Hz for both 230V and 400V, our circuit breakers deliver steadfast performance across various applications, providing reassurance and reliability with every use.
400V.
Special Note: Our circuit breakers, meticulously engineered with under-voltage release, function flawlessly at rated voltages, ensuring secure and dependable opening and closing actions, reinforcing safety in each operation.
normally.
1.3 Pre-Paid Meter Dedicated Release
Pre-Paid Meter Dedicated Release: Rated at AC230/50Hz, this release offers outstanding performance within a 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 exceptional safety and reliability, and 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 masterfully engineered to remain inactive during standard operations. They precision-switch between open and closed states exclusively during free or fault tripping events, ensuring timely and accurate alerts when truly necessary. This meticulous design guarantees that you receive alerts only when they count, providing peace of mind and operational reliability.
2. External Accessories for Circuit Breakers - Explore the essential additions that enhance the functionality and versatility of your circuit breakers, elevating their performance to new heights.
2.1 Motor Operating Mechanism: Dive deep into the precise specifications, uncovering comprehensive rated values and unique codes, all meticulously detailed in Table 6. This thorough exploration equips you with the knowledge to utilize the motor operating mechanism to its fullest potential.
| 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 triggered by the electric operating mechanism, it is imperative to reset the circuit breaker before any reclosing attempts. This critical step guarantees consistent and secure operations, offering unparalleled peace of mind with every use. Trust in this process to maintain system integrity.
Principle Diagram for the Opening and Closing Actions of DAM2-63,100,225 Electric Operating Mechanism (AC) - A comprehensive blueprint offering in-depth understanding of the mechanism's intricate functions, providing clarity and confidence in operation.
Principle Diagram for the Opening and Closing Actions of DAM2-400,630,800,1250 Electric Operating Mechanism (AC) - An indispensable guide to mastering the operation of these robust mechanisms, ensuring you handle them with expert precision and understanding.
2.2 Installation Dimensions for the Manual Operating Mechanism (Refer to Table 10 for precise measurements) - Your definitive source for accurate installation assessments, ensuring that every setup meets exact standards and specifications.
Diagram Depicting the Handle Mounting Hole Configuration for DAM2-63~800 - This meticulously detailed depiction serves as the ultimate guide for proper handle installation, ensuring swift and accurate assembly.
Overall Height Specifications of Electric/Manual Operating Mechanism for the Circuit Breaker (mm) (See Table 12 for detailed information) - Ensures your installations meet exact standards, providing a benchmark for unparalleled precision and reliability.
| 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 shortcut to choosing the right circuit breaker with precision and confidence, streamlining your decision-making process with expert insight.
| 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 exemplifies a DAM2-type molded case circuit breaker, featuring a frame rated current of 100A, standard breaking capacity, and handle operation. With 3 poles, dual release, and shunt release, it's specifically designed for motor protection, boasting a rated current of 63A for optimized performance.
To achieve extraordinary performance, ensure every selection, installation, and operation meticulously follows the product manual or complies with pertinent national standards, guaranteeing the utmost in safety and efficiency.
Note: The N-pole type of a 4P circuit breaker is classified into A-type and B-type. Without specific requirements, the default classification is B-type, assuring standard reliability and performance.
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