R4H3030FJ - 

R9 Series (UL 98 listed) Non-Fusible 30–800A manual operated multi-pole disconnect switches use double break contacts per pole that ensure complete isolation of the fuse when the switch is in the OFF position. When installed with fuses, they provide protection for low voltage electrical installations against short circuit and overload.
Features:

Load break functionality

Double break contacts

Up to 200 kA short-circuit rating with Class CC, J or L fuses

Compact footprints

The optional TEST position function (up to 400A) enables testing of the control circuit auxiliaries without switching the main contacts

Defeatable pistol handles automatically re-latch when the panel door is closed

Front or side operation

Flange operation

NFPA® 79 compliant kits

Two-, three- and four-pole devices