Schneider C253TM250 Trip Unit TM250D

Schneider C253TM250 Trip Unit TM250D

The C253TM250 Schneider is a TM250D thermal-magnetic trip unit designed for installation in ComPacT NSX250 circuit breakers. It supports 3-pole (3D) configurations and is rated for 250 A at 40 °C, providing dependable overload and short-circuit protection in high-capacity low-voltage systems.

Equipped with adjustable thermal protection and fixed magnetic tripping, it ensures fast fault clearance and long-term system reliability. The 3D setup is ideal for standard three-phase applications without neutral monitoring.

Certified to IEC 60947-2 standards, this unit guarantees safe, durable operation in commercial and industrial environments.

Technical Specifications

• Model: C253TM250
• Type: Thermal Magnetic Trip Unit TM250D
• Brand: Schneider Electric
• Range: ComPacT NSX New Generation

Power & Performance

• Rated Current: 250 A at 40°C
• Poles: 3P (Three Poles)
• Protected Poles: 3D (Three Protected Poles)
• Trip Unit Technology: Thermal-Magnetic
• Protection Functions:
  • L (Thermal): Overload Protection
  • I (Magnetic): Short-Circuit Protection
• Rated Operational Voltage (Ue):
  • 690V AC 50/60Hz
• Network Type: AC
• Network Frequency: 50/60 Hz

Adjustments & Settings

• Long-Time Thermal Protection (Ir): Adjustable
• Adjustment Range: 0.7…1 x In
• Long-Time Delay (tr): Fixed
• Delay Settings:
  • 120…400 seconds at 1.5 x In
  • 15 seconds at 6 x Ir
• Instantaneous Magnetic Protection (Ii): Adjustable
• Instantaneous Setting Range: 5…10 x In
• Earth Leakage Protection: Not included

Build & Design

• Mounting Mode: Fixed
• Trip Unit Rating: 250A
• Compatibility:
  • ComPacT NSX250 Basic Frames

C253TM250 Physical Specifications

• Gross Weight: 450 g

Dimensions:

• Height: 7.0 cm
• Width: 10.0 cm
• Length: 11.5 cm

Environmental Specifications

• Standards: EN/IEC 60947-2
• Shock Protection Class: Class II
• Pollution Degree: 3 (IEC 60947-1)
• IP Degree of Protection: IP40 (IEC 60529)
• Ambient Temperature for Operation: -25°C to +70°C
• Ambient Temperature for Storage: -50°C to +85°C
• Carbon Footprint: 79 kg CO₂-eq (Total Life Cycle)
• Recycled Metal Content: 0%

Key Features & Benefits

✅ Thermal-Magnetic Protection: Ensures reliable overload and short-circuit protection.

✅ Adjustable Thermal Settings: Tailor protection to your system requirements with adjustable long-time pick-up.

✅ Adjustable Magnetic Protection: Instantaneous trip setting for flexibility and fast reaction to short-circuit events.

✅ Durable Design: Rated for harsh environments with a wide operating temperature range.

✅ Seamless Integration: Specifically designed for use with ComPacT NSX250 circuit breakers and EcoStruxure Power systems.

📦 Order Today for Fast UK & Europe Delivery!

At Drive Outlet Megastore, get the most competitive Schneider C253TM250 prices, ready for quick dispatch across the UK and Europe.

For expert advice on trip unit compatibility or help selecting the right Schneider Electric ComPacT NSX accessories, contact Drive Outlet Megastore.

Our team is ready to assist you!