Eaton IZM32 Instruction Manual page 13

Drawout cassette
A drawout circuit breaker is used in combination with a fixed
drawout cassette (Figure 2-9); the drawout circuit breaker
is equipped with automatic primary disconnects (Figure
2-10). The cassette provides all of the necessary interfaces
to the drawout circuit breaker, including automatic primary
and secondary connections. Horizontal stabs and horizontal
customer busbar terminals are available as standard
(Figure 2-11). The cassette terminal connections can be
adapted to vertical busbar connections with a variety of
optional vertical adapters.
Mounting locations for cell (TOC) switches, safety shutters,
mechanical interlocks, and key interlocks are provided on
the cassette.
Figure 2-9 Drawout circuit breaker cassette
IZM32 / IN32 low voltage air circuit breaker MN013017EN May 2022 www.eaton.com
Section 2: Receiving, handling, and installation
Drawout circuit breaker dimensions
The drawout circuit breaker connects to the fixed primary
stabs of the drawout cassette through the primary finger
clusters attached to the rear of the circuit breaker. Two
different frame sizes cover all circuit breakers from an
overall dimensional standpoint.
Figure 2-10 Drawout circuit breaker with automatic
primary disconnects
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