Thermal Unit, Trip Class 20, Overload Protection Type Melting Alloy, Full Load Current 28.8 to 30.4 A, 29.7 to 32.1 A, 36.2 to 39.1 A, NEMA Size 0, 00, 1, 1P, 2, Frame Size B, S, Compatible with Grainger Part Number 11W21, 11W228, 11W233, 11W24, 11W25, 2CG8, 48P834, 4DF19, 4DF22, 4DF23, Compatible with Manufacturer Model Number 8911DPSG42V09, 8911DPSG43V06, 8911DPSG43V09, 8911DPSG52V09, 8911DPSG53V06, 8911DPSG53V09, 8911DPSO42V09, 8911DPSO43V14, 8911DPSO53V02, 9065SEO8