Home » Fuses, Circuit Breakers & Components » Lightning Arrester » Lva-440B-Dl - Raychem Lva, Lightning Arresters & Surge Arresters
Lva-440B-Dl - Raychem Lva, Lightning Arresters & Surge Arresters
₹ 2,800 Get Latest Price
Product Specifications
| Brand | Raychem |
| Availability | In Stock |
| Brand | Raychem |
| Standard Compliance | IEC 61643-1 |
GST No - 33ALPPS6667P1ZY | Member since 2026
1ST FLOOR, NO 32, KACHALEESHWARAR AGRAHARAM STREET, PARRYS, Chennai, Tamil Nadu, 600001
Lva-440B-Dl - Raychem Lva, Lightning Arresters & Surge Arresters Read More...
Product Details
Raychem low voltage surge arresters provide protection for low-voltage overhead lines, consumer in-house supplies, distribution transformers and other systems. The gapless metal- oxide varistor incorporated in the surge arrester reliably imposes low-value limits on surges caused by atmospheric overvoltages and switching transients, thus protecting the insulation of the consumer-side networks and equipment. The varistor has a very short response time (typically <100 ns) and can safely handle high-current impulses up to 100 kA, 4/10 µs. The arrester's nominal discharge current is 10 kA. The metal-oxide varistor is enclosed in a sturdy, weatherproof polymer housing. Numerous tests have confirmed the durability of the housing, even when exposed to extreme temperature fluc tu ations and con tamination. The LVA surge arresters are in com pliance with requirements Class II as defined by IEC 61643-1. They are designed for applications in which protection against direct contact is not necessary. Special insulated adapter modules are available for use in insulated overhead-line systems and the low- voltage bushings of distribution transformers. The integral disconnector disconnects the arrester from the net work if an overload occurs, caused, for example, by a lightning strike in the vicinity or an impermissible voltage excursion in the system. If this happens the rating plate on the underside of the arrester dislocates and remains dangling from a holding wire. The ground connection itself remains securely in position. Raychem Metal-Oxide Low Voltage Arresters This arrangement ensures that when the arrester disconnects, the ground connection line cannot penetrate dan gerous parts of the overhead system. The rating plate is large and is reflective on the reverse, so the defective arrester is easily spotted. All terminals are made of high-grade steel and connect to aluminum or copper without corrosion problems.
1ST FLOOR, NO 32, KACHALEESHWARAR AGRAHARAM STREET, PARRYS, Chennai, Tamil Nadu, 600001
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