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ABB

T3N 250

ABB circuit breaker with residual current release

ABB

From $2,397.71In stockSource updated 6/24/2026

Product Description

- Brand: ABB - Model: T3N 250 + RC223 4p - Type: Molded case circuit breaker (MCCB) with residual current release (Type B, 4-pole) - All Tech Specs: - Material: Thermoplastic/insulated enclosure (T3N); thermoplastic or polycarbonate housing (RC223) for durability and arc resistance - Poles: 4 (RC223 requires 4-pole configuration; T3N available in 3P or 4P, 4P used here) - Rated Current: 250A (T3N, adjustable via TMD thermomagnetic release from 250-2500A) - Rated Voltage: 690V AC (T3N, Ue maximum); 400V AC (RC223, nominal operating) - Breaking Capacity: Up to 36kA at 415V AC (Icu, T3N); up to 50kA at 400V AC - Sensitivity Threshold (RC223): 30mA, 300mA, 3000mA (selectable for residual current detection) - Type (RC223): B (detects AC, pulsating DC, and smooth DC residual currents; complies with IEC/EN 60947-2) - Frequency Sensitivity (RC223): Selectable maximum threshold (400 Hz, 700 Hz, 1000 Hz) for industrial fault frequencies - Release Type (T3N): Thermomagnetic (TMD R, thermal for overload, magnetic for short-circuit; adjustable trip settings) - Frequency: 50/60 Hz (both units) - Insulation Voltage: 800V (T3N, Ui) - Impulse Withstand Voltage: 8kV (T3N, Uimp) - Response Time (RC223): Instantaneous trip for residual faults above threshold - Protection: Overload and short-circuit (T3N); residual current protection against indirect/direct contacts (RC223) - Connection: Screw terminals (T3N: front terminals; RC223: integrated with T4 breaker system) - Mounting: Fixed installation (T3N with RC223; plug-in optional for T3N) - Operating Temperature Range: -25°C to +70°C (-13°F to +158°F) for both - Protection Rating: IP20 (standard; IP40 or higher with accessories) - Standards: IEC/EN 60947-2 (both); suitable for industrial and commercial low-voltage systems - Certification: CE marked; RoHS compliant; UL listed options available - Features: Compact design for space-saving; RC223 requires no external power; LED indicators on RC223 for status; suitable for 19-inch racks (no); easy maintenance with modular integration - - Weight: 3,8 - Country of Origin: Italy - HS Code: 8536.20 (automatic circuit breakers and residual current devices)

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Used

Price: $2,397.71
Availability: Available to order
Lead time: Quoted after RFQ

Specifications

Brand
ABB
Model
T3N 250 + RC223 4p
Type
Molded case circuit breaker (MCCB) with residual current release (Type B, 4-pole)
Material
Thermoplastic/insulated enclosure (T3N); thermoplastic or polycarbonate housing (RC223) for durability and arc resistance
Poles
4 (RC223 requires 4-pole configuration; T3N available in 3P or 4P, 4P used here)
Rated Current
250A (T3N, adjustable via TMD thermomagnetic release from 250-2500A)
Rated Voltage
690V AC (T3N, Ue maximum); 400V AC (RC223, nominal operating)
Breaking Capacity
Up to 36kA at 415V AC (Icu, T3N); up to 50kA at 400V AC
Sensitivity Threshold (RC223)
30mA, 300mA, 3000mA (selectable for residual current detection)
Type (RC223)
B (detects AC, pulsating DC, and smooth DC residual currents; complies with IEC/EN 60947-2)
Frequency Sensitivity (RC223)
Selectable maximum threshold (400 Hz, 700 Hz, 1000 Hz) for industrial fault frequencies
Release Type (T3N)
Thermomagnetic (TMD R, thermal for overload, magnetic for short-circuit; adjustable trip settings)
Frequency
50/60 Hz (both units)
Insulation Voltage
800V (T3N, Ui)
Impulse Withstand Voltage
8kV (T3N, Uimp)
Response Time (RC223)
Instantaneous trip for residual faults above threshold
Protection
Overload and short-circuit (T3N); residual current protection against indirect/direct contacts (RC223)
Connection
Screw terminals (T3N: front terminals; RC223: integrated with T4 breaker system)
Mounting
Fixed installation (T3N with RC223; plug-in optional for T3N)
Operating Temperature Range
-25°C to +70°C (-13°F to +158°F) for both
Protection Rating
IP20 (standard; IP40 or higher with accessories)
Standards
IEC/EN 60947-2 (both); suitable for industrial and commercial low-voltage systems
Certification
CE marked; RoHS compliant; UL listed options available
Features
Compact design for space-saving; RC223 requires no external power; LED indicators on RC223 for status; suitable for 19-inch racks (no); easy maintenance with modular integration
Weight
3,8
Country of Origin
Italy
HS Code
8536.20 (automatic circuit breakers and residual current devices)
Product
All Tech Specs:

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FAQ

Is T3N 250 discontinued?

T3N 250 is commonly available as a spare part. Submit an RFQ for pricing and lead time.

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