Westinghouse 591C812G04 Current Limiting Fuse

The Westinghouse CLS-1 130A industrial current-limiting fuse (Reference 591C812G04, Part No. CLS-1, Identification Code PP4) is an industrial-duty fuse designed to interrupt overloads and short circuits in power distribution systems. It is commonly installed in motor control centers, industrial switchgear, manufacturing equipment, and power distribution panels where fast fault interruption and dependable overcurrent protection are essential. Key specs include a 130 Amp current rating, current-limiting protection, and mounting for fuse holders or switchgear installations, with compatibility across industrial distribution and protection equipment for continuous operation. Common replacements include Bussmann Current Limiting Fuse, Littelfuse Industrial Fuse, and Ferraz Shawmut Power Fuse.