250A 4P Thermal Adjustable Molded Case Circuit Breaker
This molded case circuit breaker (MCCB) is rated for 250A and features 4 poles. It offers adjustable thermal settings for overload protection and complies with IEC60947-2 standards.
Technical Specifications
Product Overview
High-Performance TRM Series MCCB
The TRM series molded case circuit breaker is designed for reliable power distribution and circuit protection in industrial and commercial environments. This 4-pole, 250A unit features thermal adjustability (0.8In to 1.0In) to allow for precise overload protection tuning. Built to comply with international IEC/EN 60947-2 standards, it ensures high breaking capacity and operational safety with a 100% Ics rating.
Technical Performance
Rated Performance Metrics
250 A
Rated Current (In)
1,000 V
Insulation Voltage (Ui)
8 kV
Impulse Withstand (Uimp)
50 kA
Breaking Capacity (Icu @ 415V)
Electrical Specifications
| Parameter | Value |
|---|---|
| Rated Operational Voltage (Ue) | AC 240/415V |
| Rated Frequency | 50/60 Hz |
| Service Breaking Capacity (Ics) | 100% Icu (H-Type) / 50% Icu (S-Type) |
| Mechanical Life | 7000 cycles |
| Electrical Life | 1000 cycles |
Physical Dimensions
Unit Dimensions
| Configuration | L x W x H (mm) |
|---|---|
| 1-Pole | 150 x 38 x 60 |
| 3-Pole | 165 x 105 x 60 |
| 4-Pole | 130 x 140 x 60 |
Operating Environment
Standard Use Environment
- Ambient Temperature: -5°C to +55°C (Derating recommended above 40°C)
- Relative Humidity: 45% to 85%
- Altitude: ≤ 2000m (Atmospheric correction required > 1000m)
- Atmosphere: Free from excessive steam, oil, smoke, dust, or corrosive materials
Accessories & Features
External Features
Inter-phase Insulation BarrierShort Terminal CoverLockup DeviceTrip Indicator
- Available Built-in Accessories
- Shunt Trip (SHT)Auxiliary Contact (AX)Alarm Contact (AL)Dual Auxiliary (AX+AX)Auxiliary + Alarm (AX+AL)
Standards & Compliance
- Compliance Standards
- IEC/EN 60947-1IEC/EN 60947-2
