Products Delta Surge Arrestor
Helps prevent Lightning & Surge Damage Replaces: Surge Suppressors, Surge Protectors, and other Surge Protective Devices (SPD)
$ Pricing Info
Weather Proof N-4
Case Dimensions:
2 1/4" Diameter
2 1/4" High
MO302
For 120 / 250 VAC, Single Phase.
MO302DC
For 175 / 350 VDC, for PV and other DC systems
$ Pricing Info
Weather Proof N-4
Case Dimensions:
2 1/4" Diameter
4 1/2" High
For 120 / 208-240 VAC, Three Phase.
Specifications |
|
|---|---|
| Type of Design | Metal Oxide Varistor |
| Firing Voltage Sparkover Voltage VPR Voltage |
L-L 480V L-N-240 V |
| Maximum current L-N | 20,000 amps |
| Maximum joules L-N | 300 joules |
| Tested to | NEMA C62.11 |
| Category B & C and Type 1 & 2 | |
| Leads | 18" #12 THHN |
| Response Time | 5 nanoseconds |
| SCCR | 10k Amps |
| Locknut and Washer furnished | 1/2" Nipple Washer & Locknut |
INSTALLATION:
Fasten arrestor in place. Use a Delta mounting bracket, part # MB, a pipe strap, or a knockout hole. Connect the black wires to the hot lines at any convenience point load-side of an existing fuse or circuit breaker. Connect the white wire to an existing ground system, the grounded metal frame work of the equipment to be protected, or make a ground source per NEC Article 250.
In the event that a lightning discharge is so powerful that something has to be destroyed, the arrestor will take the damage. When sufficient heat and stress causes failure, a one inch hole will open at the bottom of the enclosure. Hot silica and plastic bits will be expelled. Installing the arrestor in any approved electrical box will prevent accidental contact with a damaged unit.