Frame Designation; Trip Unit Designation - Siemens UL 1066 Operating Instructions Manual

2.3

Frame designation

(1) Type of circuit breaker
(2) Siemens interrupting class
(3) Frame size
(4) No. of poles
(5) Maximum rated continuous current.
2.4

Trip unit designation

(1)
(2)
WLN., WLS., WLH., WLL., WLF., WLM.
(3)
(4)
(1) Type
(2) Catalog number
(3) Can be used in the following types of circuit breakers
(4) Regulatory approvals on a separate label
WLL2332
(1) (2) (3) (4)
N450101000001
(5)
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