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Eaton / Cutler-Hammer

JT3090FA

In Stock

90A, 3P, trip unit, fixed thermal & adjustable magnetic, CSA

The Eaton JT3090FA is a molded case circuit breaker trip unit from the Series G family, designed for integration into J-K frame breakers. This 3-pole unit is rated for 90 A and supports systems up to 600 V. It features fixed long-time (thermal) and adjustable instantaneous (magnetic) protection functions. Compact in design, the JT3090FA offers robust overload and short-circuit protection for industrial and commercial applications. CSA approved, it is a reliable accessory for Eaton's molded case circuit breakers.

Country of Origin: DE

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  • Product Specifications
  • Technical Specifications
Brand Eaton
Model JT3090FA
Series Series G
Product Type Thermal-Magnetic Trip Unit
Frame Size JG
Compatible Breaker Frame J-K Frame
Amperage 90 A
Poles 3-pole
Protection Type Thermal-Magnetic
Protection Functions LI – Long-Time and Instantaneous
Magnetic Trip Range 450–900 A
Voltage Rating 600 V AC (NEMA), 415 V AC (IEC)
Insulation Voltage (Ui) 750 V AC
Impulse Withstand Voltage (Uimp) 8 kV (main), 4 kV (aux)
Operating Temperature Range -20°C to +70°C
Trip Type Fixed Thermal, Adjustable Magnetic
Conductor Size Range (Solid/Stranded) 50–150 mm²
Tightening Torque (Main) 20 Nm
Short-Circuit Capacity (DC @ 250 V) 42 kA (2 poles in series)
Auxiliary Voltage Rating 230/400/600 V AC; 125/250 V DC
Auxiliary Current Rating 6/3/0.25 A (AC), 0.5/0.15 A (DC)
Endurance (Operating Cycles) 10,000 operations
Switching Frequency 240 operations/hour
Dimensions (HxWxD) 2.75 × 4.13 × 3.57 in
Weight 1.0 lb
Certifications CSA Approved, IEC 60947-2

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