Square D > On-line Catalog > Products > Switchboards and Switchgear > Switchgear: Medium Voltage Metal-Enclosed—HVL	Search

Digest 174 Quick Page Locator Enter a page number from our paper catalog to go directly to that page in our online catalog. Example: 5 - 3

Section - Page -

Switchgear

Medium Voltage Metal-Enclosed—HVL

Class 6040 / Refer to Catalog 6040CT9201

Fuse Selection

The rule of thumb method for selecting fuses for transformer protection is 1.33 times the self-cooled full load current of the transformer or the next higher fuse rating. Selection of the fuse is the customer’s responsibility and should be based on transformer and system characteristics.

●	Maximum Fuse Size: Maximum fuse size should be determined by comparing the fuse total clearing curve to the transformer damage curve. Contact Schneider Electric for transformer overload and short-circuit withstand capability.

●	Minimum Fuse Size: Minimum fuse size shall carry the transformer magnetizing inrush current of 12 times full load amperes for 0.1 second.

 

Factory Modifications

Catalog No.	Description	$ Price
HVMB	Main Bus Kit, 600 ampere copper	2288.00
HVLC	Line side connector kit (main bus) 600 amperes with 2–1/0=500 MCM lugs (top only)	1282.00
	Provisions for key interlocks (does not include key cylinders—order separately	0.00
HVLX3	Auxiliary switch 2 N.O.—2 N.C. contact	762.00
HVLC2	Set screw type lugs 1/0—500 kcmil (qty. 3)	196.00
Distribution Class Surge Arresters a
HVDSA3	3 kV, 2.55 MCOV	1618.00
HVDSA6	6 kV, 5.10 MCOV	1926.00
HVDSA9	9 kV, 7.65 MCOV	2248.00
HVDSA10	10 kV, 8.40 MCOV	2446.00
HVDSA12	12 kV, 10.20 MCOV	2836.00
HVDSA15	15 kV, 12.70 MCOV	3424.00

a	Load side connected

Standard Features

●	Switches for transformer primaries are cable connected only.

●	Key interlocks must be ordered and coordinated by customer.

●	Standard color is ANSI 61 for stand alone units;

●	ANSI 49 for switches connecting to transformers.

●	If switches are purchased to coordinate with Square D® transformers, composite drawings and shipment coordination will not be available.

●	Switches are not designed for any special dimensions for retrofit purposes. For dimensions other than shown, contact your nearest Schneider Electric sales office or your local Schneider Electric distributor.

Ordering Information

1.	Select switch catalog number based on fused or unfused and enclosure type.

2.	Select catalog numbers for factory modifications from the table above.

3.	If fused, select fuse from table on page 11-14.

4.	Price switch and fuses separately. Switches are furnished with provisions only for current-limiting fuse or boric acid fuse.

Pricing Example

Price one (1) indoor (NEMA 1), 15 kV, 600 ampere switch with 80E SM-5S boric acid fuses and 10 kV distribution class surge arresters for a 7.62/13.2 kV grounded wye system.

 

Order:	Catalog No.	$ Price
Switch with indoor enclosure	HVL315BG	26650.00
Surge arrester, 10 kV	HVDSA10	2446.00
Boric acid fuse (set of three, from page 11-14	15SM5080	1508.00
Total Price		30634.00

 

PE5A	Discount Schedule