Wall Mounted Metering Equipment

Class 2730 / Refer to Handout 2730HO9401

Main Circuit Breaker and Current Transformer Compartment

Standard Unit

Inverted Unit

Service Entrance Equipment Hot or Cold Sequence Metering, Top or Bottom Feed, Indoor Construction at 600 Volts

General: Suitable for use as service entrance equipment on AC systems. Listed by Underwriters’ Laboratories.

Service: 1Ø3W, 3Ø3W, 3Ø4W, rated up to 600 Vac maximum.

Metering: [1] Current transformer compartment with provisions for installing bar type current transformers. For window type current transformers, order bus link kit from Product Selection Table.

Standard unit is factory assembled for bottom feed cold sequence or top feed hot sequence metering applications. The unit is field convertible for bottom feed hot sequence or top feed cold sequence metering. Refer to instruction bulletin 80105-113-0x, CTC Wall-Mounted Metering Equipment, for field conversion details.

Mains: Main disconnects provided. 400-800 A: MJP. 1000-1200 A: PJP. Handle lock-off attachment provided for main circuit breaker as standard.

Refer to the Digest for field installable accessories.

Enclosure: Front accessible, totally enclosed, gray baked enamel finish. Available as indoor construction only. Dimensions—78 in. H x 26 in. W x 14.3 in. D.

  • note

    Not EUSERC approved.

Product Selection Table[2]

System

Service
Voltage (AC)

Ampere Rating
of Main

Catalog Number

1Ø3W, 3Ø3W, 3Ø4W

600 V Max.

 400 A

CTC364CU

 600 A

CTC366CU

 800 A

CTC368CU

1000 A

CTC3610CU

1200 A

CTC3612CU

Bus link kit—used when installing window-type current transformers [3]

SS4BLC

Lug Table

Ampere
Rating

Main Circuit Breaker Lug
Wire Range [4]

Ground Lug

 400 A

(3) 3/0–500 kcmil Al or Cu

#6 AWG–300 kcmil Al or Cu

 600 A

(3) 3/0–500 kcmil Al or Cu

 800 A

(3) 3/0–500 kcmil Al or Cu

1000 A

(4) 3/0–500 kcmil Al or Cu

1200 A

(4) 3/0–500 kcmil Al or Cu

Footnotes

  1. Field conversion is the customer’s responsibility, only the standard configuration is built by the factory.
  2. Must specify feed (top or bottom) and sequence (hot or cold) at the time of order.
  3. Kits required per 3Ø application:
     400–600 A—Order one kit
     800–1200 A—Order two kits
  4. CT bus lugs and neutral lugs are identical to the main circuit breaker lugs.

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