Schneider C256TM200 Trip Unit TM200D

The C256TM200 Schneider is a TM200D thermal-magnetic trip unit designed for use with ComPacT NSX250 circuit breakers. It supports 4-pole (3D) configurations and is rated for 200 A at 40 °C, delivering dependable protection for mid-range low-voltage installations.

It features adjustable thermal overload and fixed magnetic short-circuit protection, with a 3D configuration that monitors the three phase conductors while leaving the neutral unprotected. This makes it suitable for standard three-phase systems without sensitive neutral loads.

Built to meet IEC 60947-2 standards, the unit ensures safe, efficient, and long-lasting performance in commercial and industrial environments.

Technical Specifications

• Model: C256TM200
• Type: Thermal Magnetic Trip Unit TM200D
• Brand: Schneider Electric
• Range: ComPacT NSX New Generation

Power & Performance

• Rated Current: 200 A at 40°C
• Poles: 4P (Four Poles)
• Protected Poles: 3D (Three Protected Poles)
• Neutral Position: Left
• 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
• Neutral Protection Setting: No protection (3D)
• 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: 200A
• Compatibility:
  • ComPacT NSX250 Basic Frames

C256TM200 Physical Specifications

• Gross Weight: 560 g

Dimensions:

• Height: 6.5 cm
• Width: 9.5 cm
• Length: 15.0 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: 108 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: Provides precise short-circuit response settings from 5 to 10 times the rated current.

✅ 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.

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