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Cutler Hammer AN31A - Thermal Overload Relay 19-90A

Cutler Hammer
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Cutler Hammer AN31A is a thermal overload relay designed for motor control applications, providing back-up protection against overload conditions. It operates within an amperage range of 19 to 90 amps and is rated for a voltage of 15500V, with an AIC rating of 40kA at 15.5kV. The relay features a ferrule connection, a diameter of 63.5 mm, and weighs 0.25 lb, housed in a single-pole, NEMA Size 5 frame with a trip class 20 thermal bimetallic trip unit. It supports both automatic and manual reset functions and is suitable for ambient temperature non-compensated environments. This relay is typically used in industrial motor control systems for reliable overload protection.

Key Features & Specifications
  • Type: Thermal Overload Relay
  • Manufacturer: Cutler Hammer
  • Item Subcategory: Overload Relay
  • Weight: 0.25 lb
  • Relay Style: Thermal
  • Diameter: 63.5 mm
  • Class Rating: Back-Up
  • Voltage Rating: 15500V
  • Connection: Ferrule
  • Amperage Minimum: 19 A
  • AIC rating: [email protected]
  • Amperage Maximum: 90 A
  • Number of poles: 1
  • NEMA size: 5
  • Trip class: 20
  • Thermal bimetallic trip unit
  • Automatic and manual reset capability
  • Open mounting style
  • Ambient temperature non-compensated