SPAJ 140 C

Overview

SPAJ 140 C is an ABB overcurrent and earth-fault relay designed for protection and fault detection in electrical systems with reliable input and output characteristics.

Input Ratings

• Rated Current (In): 1 A or 5 A

• Thermal Withstand:

• Continuous: 4 A / 20 A

• 1 second: 100 A / 500 A

• Dynamic Current Withstand (half-wave value): 250 A / 1250 A

• Input Impedance: <100 mΩ (1 A), <20 mΩ (5 A)

• Rated Frequency: 50 Hz or 60 Hz (on request)

Output Contact Ratings

• Tripping Contacts: Terminals 65-66, 74-75

• Rated Voltage: 250 V DC/AC

• Continuous Carry Current: 5 A

• Make and Carry Current:

• 30 A for 0.5 seconds

• 15 A for 3 seconds

• Breaking Capacity (DC, L/R ≤ 40 ms):

• 5 A at 48 V DC

• 3 A at 110 V DC

• 1 A at 220 V DC

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