High-performance, four-pole molded case circuit breaker with front terminals and solid-state release, rated for 300A at 400V AC, meeting UL and CSA standards.
Product ModelT5N 400 UL/CSA PR221DS-LS/I 300 4p F F
Material Number1SDA060115R1
Product ID75849
Stock on Request
Last updated: 9/6/2026
Key Features
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1. Reliability and EfficiencyThe ABB T5N 400 UL/CSA PR221DS-LS/I 300 4p F F is engineered for reliable operation, ensuring minimal downtime and maximum efficiency in your electrical systems.
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2. Compliance with Safety StandardsThis circuit breaker meets both UL and CSA standards, guaranteeing safe and reliable operation in a variety of electrical applications.
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3. High Current RatingWith a rated current of 300A at 400V AC, this breaker is suitable for high-demand applications, providing ample power handling capacity.
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4. Mechanical DurabilityDesigned to withstand 20,000 cycles at 120 cycles per hour, this breaker offers exceptional mechanical durability, ensuring long-lasting performance.
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Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Specifications may be subject to change without notice
Parameter
Value
Parameter
Value
Environmental Information
9AKK10103A1056 9AKK108467A6707
Product Net Width
186 mm
Product Net Height
205 mm
Product Net Depth / Length
103.5 mm
Product Net Weight
6.2 kg
Product Main Type
SACE Tmax T
5. Advanced Solid-State ReleaseEquipped with a solid-state release mechanism, this circuit breaker provides fast and reliable tripping, enhancing overall system safety and efficiency.
Product Name
Moulded Case Circuit Breaker
Product Type
Automatic Circuit Breaker
Suitable For
T5
Suitable for Product Class
Moulded Case Circuit Breakers
Version
F
Mechanical Durability
20000 cycle 120 cycles per hour
Number of Poles
4
Power Loss
at Rated Operating Conditions per Pole 9.3 W
Rated Current (In)
300 A
Rated Impulse Withstand Voltage (Uimp)
8 kV
Rated Insulation Voltage (Ui)
1000 V
Rated Operational Voltage
600 V AC
Rated Uninterrupted Current (Iu)
400 A
Release
PR221DS-LS/I
Release Type
EL
Short-Circuit Performance Level
N
Standards
UL
Sub-type
T5
Terminal Connection Type
Fixed Circuit-Breakers Front
Test Voltage Max (Utest)
3500 V
Interrupting Rating acc. to UL489
(240 V AC) 65 kA (480 V AC) 25 kA (600 V AC) 18 kA
ETIM 8
EC000228 - Power circuit-breaker for trafo/generator/installation protection
ETIM 9
EC000228 - Power circuit-breaker for trafo/generator/installation protection
WEEE Category
5. Small Equipment (No External Dimension More Than 50 cm)
eClass
V11.1 : 27370409
Manufacturer ID
1SDA060115R1
ABB T5N 400 UL/CSA PR221DS-LS/I 300 4p F F Molded Case Circuit Breaker | INDPRT