Fuse Blockout Devices (Small). Brand Name: Brady®. Type: Fuse Blockout Devices (Small). Special Features: Use these high visibility red devices in conjunction with Brady Lockout Tags to comply with OSHA's Lockout/Tagout Standard. Blocks out 1/4", 9/32", 11/32" & 9/16" fuses. Application: Electrical Lockout. Color: Red. Material: Brady LOTO-49.