ABB Molded Case Circuit Breaker T2N160TMD630FF3P

The ABB molded case circuit breaker **T2N160TMD630FF3P** is a high-performance power distribution protection device in the Tmax series, suitable for circuit protection in industrial, commercial, and new energy fields. The following is a detailed analysis of its core parameters, functional features, and application scenarios:

 I. Model Analysis and Core Parameters

1. **Model Structure**

   - **T2**: Represents the frame size of the Tmax series. The frame current is **160A**, which is suitable for medium and small power distribution systems.

   - **N**: The short-circuit breaking capacity level is **N (50kA, 400V AC)**, meeting the requirements of most industrial scenarios.

   - **160**: The frame current is **160A**, indicating the maximum current that the circuit breaker can carry for a long time.

   - **TMD**: The type of release is **thermal magnetic type**, which has both overload long-time delay (L) and short-circuit instantaneous (M) protection functions.

   - **630**: The **rated current** is **63A** (There may be a mislabeling of the model, and the actual rated current needs to be confirmed according to the setting range of the release).

   - **FF**: The installation method is **front wiring (Front Fixing)**, supporting panel or rail installation.

   - **3P**: The number of poles is **3 poles**, used for the protection of three-phase AC circuits.

2. **Key Technical Parameters*YouTube：https://youtube.com/shorts/FjMAoDIOiCE  *

   - **Rated Voltage**: The main circuit is **690V AC**, and the control circuit is **220-240V AC**.

   - **Conventional Heating Current**: **160A** (The maximum current for long-term operation).

   - **Electrical Life**: **100,000 times** (Under AC-3 load).

   - **Protection Level**: **IP20**, which can prevent fingers from touching the internal live parts.

   - **Ambient Temperature**: From -40°C to +70°C, adapting to a wide-temperature industrial environment.

 II. Functional Features and Design Advantages

1. **Thermal Magnetic Release (TMD)**

   - **Overload Protection**: The long-time delay tripping is achieved through the thermal effect of the bimetallic strip, and the setting range is **0.7-1×In**.

   - **Short-circuit Protection**: The electromagnetic release acts instantaneously, and the setting range is **5-10×In**.

   - **Maintenance-free Design**: No external power supply is required, with high reliability, suitable for harsh environments.

2. **Modular Design**

   - It supports **front-mounted or side-mounted accessories**, such as auxiliary contacts (CA series), shunt trips (MX), undervoltage releases (UVR), etc., and the functions can be flexibly expanded.

   - Models below 185A support **maintenance without disconnecting wires**, reducing the downtime.

3. **Safety and Certification**

   - It complies with **CCC, CE, RoHS** certifications, and some models have passed the **UL certification** (The specific model needs to be confirmed).

   - It has a built-in **arc extinguishing chamber**, and the arcing distance is zero, so it can be directly installed near the door panel of the control cabinet.

 III. Application Scenarios

1. **Industrial Field**

   - **Motor Control**: It is used for the direct starting of **three-phase motors below 30kW**, and cooperates with contactors to achieve overload protection.

   - **Auxiliary Circuit of Electric Locomotives**: Controls the auxiliary power supply system to ensure the stable operation of the traction system.

2. **Building and Building**

   - **Lighting System**: Controls the switching on and off of the **LED lighting distribution box**, and is compatible with PWM dimming signals.

   - **Air Conditioning Compressor**: Protects the refrigeration system and prevents damage caused by short circuits and overloads.

3. **New Energy**

   - **Photovoltaic Inverter**: As a DC circuit breaker, it controls the charging and discharging of the battery pack.

   - **Energy Storage System**: It is used for busbar switching to ensure the safe operation of the system.

 IV. Market Information and Purchase Suggestions

1. **Supply Status**

   - This model is still in stock in 2025 and can be purchased through platforms such as Alibaba and eBay. The price is approximately **434 yuan to 800 yuan** (There are differences in different channels and regions).

   - Some suppliers provide **customization services**, such as coil voltage adjustment or special certifications (such as UL).

2. **Alternative Models**

   - If a higher breaking capacity is required, **T2H160TMD63FF3P (H level, 70kA)** can be considered.

   - If an electronic release is required, **T2N160PR221DSFF3P** can be selected, which supports precise setting and communication functions.

3. **Purchase Precautions**

   - Confirm that the **rated current matches the load** to avoid misoperation caused by overload.

   - For the US market, it is necessary to confirm whether the product has passed the **UL certification**, and you can query it by entering the certificate number (such as E333333) on the UL official website.

 V. Typical Application Cases

1. **Motor Control**

   - It is used for the direct starting of a **15kW three-phase motor**, and cooperates with a thermal relay (such as the TA series) to achieve overload protection.

   - It supports **star-delta step-down starting**, and the winding switching is realized through the auxiliary contacts.

2. **Lighting System**

   - It controls the switching on and off of the **LED lighting distribution box**, and is compatible with PWM dimming signals.

   - It is integrated with ABB's i-bus system to achieve intelligent lighting management.

3. **New Energy Field**

   - As a DC contactor in the **photovoltaic inverter**, it controls the charging and discharging of the battery pack.

   - In the **energy storage system**, it is used for busbar switching to ensure the safe operation of the system.

 VI. Technical Documents and Support

- **Official Resources**:

  - Visit the [ABB Low Voltage Products Official Website]to download the **Tmax Series Selection Manual** and **Installation Guide**.

  - Contact the local ABB authorized distributor  to obtain customized technical support.

Summary

The T2N160TMD630FF3P is a cost-effective industrial circuit breaker. With its thermal magnetic tripping, modular design, and high reliability, it is widely used in motor control, lighting systems, and the new energy field. When purchasing, pay attention to the matching of the rated current and certification requirements. If higher performance or customized functions are required, you can refer to other models in the Tmax series or contact ABB technical support.