Square D Digest 179

Enclosures

Circuit Breaker Enclosures

Class 610

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PowerPacT L-Frame Circuit Breaker and Molded Case Switch Enclosures All enclosures accept 80% rated circuit breakers. The enclosures will also accept 100% rated circuit breakers to 400 amps. The enclosures have a blank top end wall and require field-cut openings. For details and hub catalog numbers see page 3–10.

Table 7.163: PowerPacT L-Frame Circuit Breaker Enclosures Circuit Breaker

Cat.No.

Copper Only Neutral Assembly Kit

NEMA 12/3R Enclosures Without Knockouts L600AWK [14][15][16]

Neutral Assembly Kit

Rating

Cat. No. Prefix

Poles

Service Ground Kit

250–400A 400–600A 250–400A 400–600A

SN400LA SN1000MA SN400LA SN1000MA

SNC400LX SNC800LX SNC400LX

LDL, LGL, LJL, LLL, LRL

3

PKOGTA4

L600AWKMC [17][15]

LGL, LLL, LRL

3

PKOGTA4

SNC800LX PowerPacT Q-Frame Circuit Breaker Enclosures

The enclosures for the PowerPacT Q Frame Circuit Breaker are UL listed. The short circuit ratings of these enclosed circuit breakers are equal to the interrupter ratings, at the supply voltage marked on the circuit breaker installed, unless otherwise noted.

Table 7.164: PowerPacT Q-Frame Circuit Breaker Enclosures Circuit Breaker

Enclosure Cat. No. NEMA 1Surface Q22200NS [19]

Neutral Assembly Kit Cat.No.

Service Ground Kit Cat. No.

Rating

Cat. No. Prefix

Poles

NEMA3R

NEMA 1 Flush

Q22200NRB [19]

2

—

QBL, QDL, QGL, QJL [18]

70–225A

—

PKOGTA2

2, 3

Q23225NF

Q23225NS Q23225NRB PowerPacT M- and P-Frame Circuit Breaker Enclosures

All enclosures will accept 80% rated circuit breakers. The P1200 enclosures will accept 100% rated circuit breakers to 800 A. If a CT neutral is required, the enclosure will no longer accept a 200% neutral. The M800R and the P1200R enclosures have a blank top end wall and require field-cut openings. For details and hub catalog numbers see page 3-10.

Table 7.165: PowerPacT M- and P-Frame Circuit Breaker Enclosures Circuit Breaker

Cat. No.

Neutral Assembly Kit

CT Neutral Kit [20][21]

200% Neutral Kit

Service Ground Kit

Rating Poles

Cat. No. Prefix

Enclosure

NEMA 1 Flush NEMA 1 Surface

NEMA3R

SN800SNI and2each SN1200

MGL, MJL. PGL, PJL, PKL, PLL

300–800 A 2, 3

S33576MK

PKOGTA4

—

M800S

M800R

AL800SN

PGL, PJL, PKL, PLL 250–1200 A 2, 3

—

P1200S

P1200R

SN1200

—

S33576MK

PKOGTA4

NEMA 4, 4X, 5 [22] Type 304 Stainless Steel [15]

NEMA 4, 4X, 5 [22] Type 316 Stainless Steel [15]

NEMA12/3R Without Knockouts [15]

MGL, MJL. PGL, PJL, PKL, PLL

300–800 A 2, 3

M800DS

M800SS

M800AWK P1200AWK

AL800SN SN1200

— —

S33576MK S33576MK

PKOGTA4 PKOGTA4

PGL, PJL, PKL, PLL 250–1200 A 2, 3

—

—

PowerPacT L-Frame 500 Vdc Circuit Breaker Enclosures The PowerPacT L-frame circuit breaker enclosure's maximum short circuit rating is 20 kAIR at 250 Vdc and 50 kAIR at 500 Vdc. Listed for use ONLY on UPS systems. Table 7.166: DC Circuit Breaker Enclosures for LG and LL DC-Rated Circuit Breakers Circuit Breaker [23] Cat. No. Cat. No. Prefix Ampere Rating Poles NEMA 1 Surface Enclosure Replacement Ground Lugs Service Ground Kit

300–600A 3 700–1200 A 4

L1200S L1200S

LGL, LLL

8010440301

Standard

[14] Will accept PowerPacT L-frame circuit breakers and Motor Protectors with suffixes M38X [15] For NEMA 3R applications, remove drain screw from bottom endwall. [16] Add suffix VW for visibility to the standard, ammeter or energy trip unit of the PowerPact circuit breaker. [17] Will accept PowerPacT L-frame Molded Case Switches. [18] When the QJL circuit breaker is installed in the enclosure, the enclosure is limited to Short Circuit Current ratings of 65 kAIR at 240 V and 100 kAIR at 208 V. [19] Limited to 200 A. [20] Order current transformer kit S33576 seperately. [21] Current transformers applicable only on PowerPacT P circuit breakers. Current limitations are 400–800 A and 400–1200 A respectively for the M800 and P1200 family of enclosures.

CIRCUIT BREAKERS

7 MINIATURE AND MOLDED CASE

[22] Complete rating is NEMA 3, 3R, 4, 4X, 5, and 12. [23] Use 500 Vdc or 250 Vdc rated circuit breakers only.

7-87

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