Product Name:

Schneider C25F6TM250 – Molded Case Circuit Breaker (MCCB)
Series: ComPacT NSX250F
Type: 4 Poles (3P + N), TMD Trip Unit
Breaking Capacity: 36kA at 415VAC
Rating: 250A

1. Overview:

The C25F6TM250 is a Molded Case Circuit Breaker (MCCB) from the ComPacT NSX series by Schneider Electric. It is used for protection and control of electrical power systems in industrial, commercial, and large residential installations.

This model is specifically designed to handle currents up to 250 amps, and safely interrupt short circuits up to 36kA at 415 volts AC.

2. Key Features:

Model Series – ComPacT NSX250F:

• “NSX250F” refers to the frame size (up to 250A) and F breaking capacity (36kA at 415V).

• Compact, modular design suitable for tight electrical panels.

Rated Current – 250A:

• Can handle a continuous current of 250 amps.

• Suitable for feeding large loads or sub-panels.

Breaking Capacity – 36kA @ 415VAC:

• Can interrupt up to 36,000 amps of short-circuit current without damage.

• Ensures system safety in case of high fault currents.

Poles – 4 Poles, 3D Neutral:

• 3D means: 3 poles are protected (Live phases), and the Neutral is not protected, but still passes through the breaker.

• Suitable for 3-phase + Neutral (TN-C or TN-S) systems.

Trip Unit – TMD (Thermal Magnetic, Fixed):

• Thermal Protection (T): Protects against overloads using a bimetallic strip (slow response).

• Magnetic Protection (M): Protects against short circuits using an electromagnet (instantaneous trip).

• Fixed Settings: The trip settings (thresholds) are not adjustable.

3. Applications:

• Main Circuit Protection:
  Acts as the main breaker for small to medium electrical panels or machinery.

• Industrial and Commercial Use:
  Ideal for distribution boards, motor control centers, and HVAC systems in factories, warehouses, and buildings.

• Reliable Short-Circuit Protection:
  Prevents damage to equipment or fire hazards in case of major faults.

4. Mounting & Compatibility:

• Fixed Type Installation:
  Mounted in a panel using bolts or rail systems.

• Modular Accessories Available:
  Can be equipped with add-ons like auxiliary contacts, under-voltage trips, shunt trips, etc.

• Front-Terminal Connections:
  Terminals are accessible from the front for easy wiring and maintenance.

5. Protection Characteristics:

6. Summary:

The Schneider C25F6TM250 is a 250A, 4-pole MCCB from the ComPacT NSX250F range with a TMD trip unit and 36kA breaking capacity at 415VAC. It features 3 protected poles and an unprotected neutral, making it ideal for 3-phase + N systems. This circuit breaker is used for overload and short-circuit protection in demanding commercial and industrial environments