The T21-2-5.00A-01-20A-V is a single-pole SNAPAK® hydraulic-magnetic circuit protector featuring a paddle handle actuator and snap-in mounting design. This device combines power switching, fuse functionality, and circuit protection in one compact unit, rated for 5.00A continuous current with a 20A maximum trip rating. The unit operates on DC power and employs a fast delay characteristic, providing reliable protection against overcurrent conditions while maintaining low contact wear through its hydraulic-magnetic mechanism. With UL 1077 and CSA approvals, the breaker can perform 10,000 operations at rated current and voltage, or 50 operations at 150% of maximum rated current followed by 6,000 operations at rated current. This integration of switching and protection functions reduces assembly requirements and inventory complexity, making it ideal for aerospace, industrial control, and telecommunications equipment applications where space and reliability are critical.