Weather Proof N-4
Case Dimessions:
2 1/4" Diameter
4 1/2" High

LA301 - For 120-250 V, Single Phase,

Rated voltage 125-250 Volt, two wire service. Used when one hot wire of a single phase system is to be protected.

INSTALLATION:
Fasten arrestor in place. Use a Delta mounting bracket, part # MB, a pipe strap, or a knockout hole. Connect the black wire to the hot line at any convenient point load-side of an existing fuse or circuit breaker. Connect the white wire to an existing ground system and the grounded metal frame work of the equipment to be protected, or make a ground source per NEC Article 250.

Weather Proof N-4
Case Dimessions:
2 1/4" Diameter
4 1/2" High

LA302 - For 120-250 V, Single Phase,

Rated voltage 125-250 Volt, three wire service. Used when two hot wires of a single phase system are to be protected.

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 line at any convenient point load-side of an existing fuse or circuit breaker. Connect the white wire to an existing ground system and the grounded metal frame work of the equipment to be protected, or make a ground source per NEC Article 250.

Weather Proof N-4
Case Dimessions:
2 1/4" Diameter
4 1/2" High

LA303 - For 250 V, Three Phase,

Rated voltage 250 Volt, three or four wire service. Used when three hot wires of a three phase system are to be protected.

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 line at any convenient point load-side of an existing fuse or circuit breaker. Connect the white wire to an existing ground system and 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.