HBL1221IL SWITCH SP 20A 120 277V HBL1221IL SWITCH SP 20A 120 277V
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Drawing
https://static.graybarcanada.com/Generic/id-drw-v1-m7158.pdf
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Spec Sheet
https://static.graybarcanada.com/Products/Wiring%20Devices/Wiring%20Devices%2C%20Comm-Indust/hubhbl1221il/Files/HUBHBL1221IL_Files.pdf