SPECIFICATIONS

Mechanical Specifications

 

 

 

 

 

Ground Terminals

Quantity:

2 Pair

 

Stud Size:

1/4 in.

 

Cable Size:

Up to #1/0 AWG (one per lug), de-

 

 

pending on input interruption device.

 

Lug:

Dual-hole compression lug with

 

 

1/4 in. dia. holes (7 mm) on 3/4 in.

 

 

(19 mm) centers1

 

Lug Fasteners:

1/4 - 20 KEPS nuts and flat washers

 

Socket Size for Nut:

7/16 in. (12 mm)

 

Maximum Torque:

6 ft-lb (8.13 N•m)

 

 

 

Input Terminal Bus Plate

Number of Plates:

Total 4: 1 BATT & 1 RTN per feed.

 

 

Each terminal plate capable of

 

 

supporting up to two, dual-hole input

 

 

lugs (standard configuration)2.

 

Hole Size in Plate:

.406 in. dia. (10 mm) on 1 in.

 

 

(25.4 mm) centers

 

Cable Size:

One 750/777.7MCM (max.) per

 

 

-48Vdc or RTN lug. (Size of cable

 

 

depends on size of input interruption

 

 

device and plant voltage drop

 

 

requirements.)

 

Lug:

Dual-hole compression for hole and

 

 

cable size specified above3

 

Lug Fasteners:

Grade 2, 3/8 - 16 bolts, nuts, lock

 

 

washers, and flat washers

 

Socket Size:

9/16 in. (14 mm) for bolt heads and

 

 

nuts

 

Maximum torque:

17 ft-lb (~23 N•m)

 

 

 

Output Breakers & Terminals

Breakers:

Total 36 (18 per feed), bullet-style

 

Terminals:

 

 

Quantity:

One per single or double breaker

 

Stud Size:

1/4 in.

 

Cable Size:

• For single-pole breakers, one,

 

 

#2 AWG (max.) per lug

 

 

• For double-pole breakers, one,

 

 

#1/0 AWG (max.) per lug4

 

Lugs:

Dual-hole compression with 1/4 in.

 

 

dia. holes on 3/4 in. (19 mm) centers2

 

Lug Fasteners:

1/4 - 20 KEPS nuts and flat washers

 

Socket Size for Nut:

7/16 in. (12 mm)

 

Maximum torque:

6 ft-lb (8.13 N•m)

 

 

 

Output RTN Terminal Bus Plate

Number of Plates:

One bus plate per feed accommo-

 

 

dates 18 output RTN lugs

 

Hole Size in Plates:

1/4 in. dia. (7 mm) on 3/4 in. (19 mm)

 

 

centers

 

Cable Size:

• For single-pole breakers, one,

 

 

#2 AWG (max.) per lug

 

 

• For double-pole breakers, one,

 

 

#1/0 AWG (max.) per lug3

 

Lugs:

Dual-hole compression for hole and

 

 

cable size specified above2

 

Lug Fasteners:

Grade 2, 1/4 - 20 bolts, KEPS nuts,

 

 

and flat washers

 

Socket Size:

7/16 in. (12 mm) for bolt heads and

 

 

nuts

 

Maximum torque:

6 ft-lb (8.13 N•m)

 

 

 

1.See Lug Chart on 9 for suggested manufacturers.

2.Up to four dual-hole input lugs with the optional RTN external bus bar extension kit.

3.See Lug Chart on 9 for approved manufacturers.

4.Double-pole breakers require an optional two-pole adapter.

Telect, Inc. • USA +1.509.926.6000 • Mexico +1.52.33.3836.3700

 

Poland +1.48.713.239.100 • UK +1.44.1489.889500 • www.telect.com

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Copyright © 2002 Telect, Inc., All Rights Reserved