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2CDS383103R0277 ABB S303P-K2NA Miniature Circuit Breaker - 3+NP - K - 2 A

MPN: 2CDS383103R0277

Alt. SKU: S303P-K2NA

Special Price £151.97 £126.64 Regular Price £276.31

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Why Choose the S303P-K2NA [2CDS383103R0277]

The MCBs S300P series assures protection in industrial installations against overload and short circuits. This product is manufactured according to international IEC and UL standards, for the markets where it is required.

Technical Specification

  • Function: Industrial MCB for overload and short circuit protection.
  • Rated Ultimate Short-Circuit Breaking Capacity: 100 kA at 400-440 V AC, 25 kA at 72 V DC.
  • Number of Poles: 3P+N with neutral terminal on right.
  • Electrical Endurance: 20,000 AC cycles.
  • Mechanical Endurance: 20,000 cycles.
  • Terminal Type: Failsafe bi-directional cylinder-lift screw terminals.
  • Connecting Capacity: 0.75 to 35 mm² flexible and rigid cables; busbar 10/10 mm².
  • Dielectric Test Voltage: 2 kV at 50/60 Hz for 1 minute.
  • Tightening Torque: 2.8 N·m (standard), 18 in·lb (UL/CSA).
  • Actuator: Toggle type, black insulated, sealable with red ON/green OFF indicator.

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Frequently Asked Questions

What is the function of the MCB S300P series?
The MCB S300P series provides protection against overload and short circuits in industrial installations.
What is the rated ultimate short-circuit breaking capacity?
The rated ultimate short-circuit breaking capacity is 100 kA at 400-440 V AC and 25 kA at 72 V DC.
What is the terminal type and connecting capacity?
The MCB features failsafe bi-directional cylinder-lift screw terminals with a connecting capacity of 0.75 to 35 mm² for flexible and rigid cables, and a busbar capacity of 10/10 mm².
How many poles does the MCB S300P series have?
The MCB S300P series has 3 poles plus a neutral terminal on the right.
What are the electrical and mechanical endurance ratings?
The electrical endurance is rated for 20,000 AC cycles, while the mechanical endurance is also rated for 20,000 cycles.
What is the tightening torque for the terminals?
The standard tightening torque is 2.8 N·m, equivalent to 18 in·lb for UL/CSA.
What standards does the MCB S300P series conform to?
See the manufacturer's data sheet for standards and approvals.
More Information
Manufacturer Part Number 2CDS383103R0277
Packed Quantity 1
Barcode 4016779077125
Product Image For Illustration Purposes Only
Manufacturer ABB
Number of Poles 3 Pole + N
Amperage 2A
Alternative Product SKU S303P-K2NA
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