BURNDY Master Catalog (20190422)

Underground

Network Protector Fuses and Ceramic Enclosures Types Y, Z

Types Y, Z Network Protector Fuses and Ceramic Enclosures

Type Z Network Protector Fuses are designed to coordinate with the fusible sections of the Limiters as well as the Protector characteristic itself. A Ceramic enclosure is designed especially to form an arcing chamber for these fuses. The ZH50C Enclosure is designed with high temperature glass observation windows to allow for easy viewing of the fusing element. The hole spacings in the tongues of these fuses are such that they will fit standard Network Protectors. See Time Current characteristic curve below. The Fuse element and the housing must be purchased separately.

Fuse Designation Catalog Number

Transformer Full Load (Normal) Amperes

Ceramic Enclosure

Y-Fuse Fig. 1

App. Ship. Wt. in Lbs.

Z-Fuse Fig.2

App. Ship. Wt. in Lbs.

Y-7.5 Y-11 Y-15

Z-7.5 Z-11 Z-15

0.45 0.46 0.48 0.50 0.63 0.75 0.78

0.95 0.96 0.98 1.00 1.13 1.25 1.28 1.29 1.30

400 600 800

Y-22.5

Z-22.5

1200 1333 1600 2000 2500 3000

Y-25

Z-25 Z-30

ZH50C

—

Y-37.5

Z-37.5

—

Z-44 Z-50

—

Y-50

0.80

www.burndy.com 1-800-346-4175 (US)

K-60