Commercial Arrestors
Rapid Response, High Current Delta Surge/Lightning ArrestorsTM Help Prevent Damage to Computers and other Electronic Equipment. Category B & C and Type 1 & 2



300 Series Specifications

Type of Design Silicon Oxide VaristorTM
Maximum current 100,000 amps
Maximum energy

3,000 joules per pole

Maximum number of surges Unlimited
Response time one milliamp test 5 nanoseconds
Response time to clamp 10,000 amps 10 nanoseconds
Response time to clamp 50,000 amps 25 nanoseconds
Leak current at double the rated voltage none
Leads 36" #12 THHN
Case material PVC
Locknut and Washer 1/2" - 3/4"
Category B & C and Type 1 & 2

Conduction Characteristics

8 x 20 microsecond wave shape
ANSI IEEE NEMA Standard
Discharge Current 5000 A 10000 A 20000 A 40000 A 60000 A 80000 A 100000 A
Clamping Voltage
(Line to Neutral)
240 V 480 V 840 V 1300 V 2000 V 3000 V 4000 V
Unlimited Operations One Operation
DELTA LIGHTNING ARRESTORS,™ INC. P.O. BOX 750
BIG SPRING, TX 79721
432-267-1000
www.deltala.com
deltala@msn.com


LA 301

LA 302

LA 303

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

LA301 - For 120-250 V, Single Phase,
2 Wire Service

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,
3 Wire Service

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,
3 or 4 Wire Service

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.

LA301 Pricing

LA302 Pricing

LA303 Pricing


Electrical work is hazardous. Bad connections can result in fire, injury or death. Installation must only be done by qualified electricians.

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.


 

Installation Instructions Information Request Form

Home General Products Service Site Map

Please give us your feedback on our website.

© 2004 Delta Lightning Arrestors