- Fast response time
- 40,000 Amps per phase capacity
- UL 1449 listed
- Fail-safe and fused
- Operational status indicators
- 5 year warranty
The ASCO Model 331 (Edco® EMC-240B) Surge Protective Device is designed to protect AC distribution panel circuits or 120V power supplies feeding sensitive electronic equipment. Electrically, the unit incorporates MOV and thermal fusing technology.