Schneider Electric Class 615 UL 489 Test Procedure, Standard Specifications, Temperature

Page 67

Compact® NSF and NSJ 150 to 600 A Circuit Breakers

Section 13—Supplementary Technical Information

UL 489 TEST PROCEDURE

Standard Tests For electronic trip circuit breakers and uncompensated thermal-magnetic circuit breakers rated 40° C, the test sequences are as shown in the table below:

Test

 

Sequence

 

 

 

X

Y

Z

200%

Calibration at 25° C (77° F)

■

■

■

 

 

 

 

 

135%

Calibration at 25° C (77° F)

■

 

 

 

 

 

 

Calibration of Adjustable Instantaneous Trip

■

 

 

 

 

 

 

Overload

■

 

 

 

 

 

 

Tungsten Lamp Load

①

 

 

 

 

 

 

 

100%

Calibration at 40° C (104° F)

②

 

 

 

 

 

 

Temperature and 100% Calibration at 25° C (77° F)

■

 

 

 

 

 

 

Endurance

 

■

 

 

 

 

 

 

200%

Calibration at 25° C (77° F) Repeated

 

■

 

 

 

 

 

 

135%

Calibration at 25° C (77° F) Repeated

 

■

 

 

 

 

 

Interrupting Ability (Y sequence)

 

■

 

 

 

 

 

Interrupting Ability (Z sequence)

 

 

■

 

 

 

 

 

200%

Trip Out at 25° C (77° F)

 

■

■

 

 

 

 

Dielectric Voltage Withstand

■

■

■

①Applies only to circuit breakers rated 50 A or less, and 125 or 125/250 V or less.

②Applies only to thermal-magnetic breakers rated 40° C.

Standard

Specifications

Temperature

The temperature rise at the circuit breaker and at its terminals does not exceed specified limits when

 

connected with specified cables or bus bars (see below) and at its rated current.

 

Examples of specified wires and bus:

 

• 75° C Copper Wire

 

 

 

 

 

 

 

 

Rating

Number

Size

 

 

100 A

1

#1 AWG (60° C)

 

 

 

 

 

 

1

#3 AWG

 

 

 

 

 

 

 

 

250 A

1

250 kcmil

 

 

 

 

 

 

400 A

2

3/0 AWG

 

 

 

 

 

 

600 A

2

350 kcmil

 

 

 

 

 

 

800 A

3

300 kcmil

 

 

 

 

 

 

1000 A

3

400 kcmil

 

 

 

 

 

 

1200 A

4

350 kcmil

 

 

 

 

 

•Copper Busbar

Rating

Number

Size

1600 A

2

1/4 x 3

 

 

 

2000 A

2

1/4 x 4

 

 

 

2500 A

2

1/4 x 5

 

 

4

1/4 x 2-1/2

 

 

 

 

3000 A

4

1/4 x4

 

 

 

 

(1200 A or Less—1000 A / in2)

Calibration

200% calibration at 25° C—the circuit breaker must trip within time limits which depend on the rating

 

from three minutes for 30 A rated circuit breakers to 30 minutes for over 2000 A rated circuit breakers.

135% calibration at 25° C—the circuit breaker must trip within two hours for circuit breakers rated more than 50 A.

© 1995–2003 Schneider Electric All Rights Reserved

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Contents Compact NSF and NSJ Page Table of Contents Interrupting Rating at 480 Compact Circuit Breaker LineRated Current a CompactCompliance with Standards General CharacteristicsInstallation Class Switchboards Life of Electrical Installations Longer ServiceIEC 947-2 and EN 60947-2 Ratings Circuit BreakersRatings and Interrupting Ratings UL 489 Listed RatingsUltimate Breaking Capacity Icu Compact Circuit Breakers NSJ400 NSJ600 Rated VoltageKA rms Against overload 1 with a fixed thermal protection Trip UnitsTrip Units for Compact NSF150 and NSF250 Circuit Breakers ProtectionTrip Units Trip Units for Compact NSJ400 and NSJ600 Circuit BreakersSTR53UP Protection Indications Unit or other accessoriesSetting Example With trip unit STR23SP where Io = 0.5 and Ir = 0.8?Self-monitoring Overload Indications %Ir Fault IndicationsElectronic Trip Unit STR53UP ProtectionElectronic Trip Options forMini Test Kit and Hand-held Test Kit Electronic Trip Unit Test KitsPortable Test Kit Full-function NSF150A NSF250A SwitchesUL 1087 Listed Ratings IEC 947-3 RatingsNSJ400A NSJ600A Short-circuit Withstand CurrentUL 489 Recognized Component Motor Circuit ProtectorsNSF150HC NSF250HC NSJ400HC NSJ600HC PLUG-IN Mounting Mounting ConfigurationsFixed Mounting ConnectionsHorizontally or vertically Parts of a Plug-in ConfigurationDrawout Mounting MountingConnection of Auxiliaries AccessoriesCopper or Aluminum Cable ConnectionsFront Connection Connection to CablesCompact Circuit Breake r NSF150/250 NSJ400/600 Rear ConnectionConnection to Bars Plug-in Mounting DrawoutLocation AccessoriesPlug-in and Drawout Mounting Automatic Secondary Disconnecting Blocks Auxiliary and Alarm Switches UL 489 and CSA C22.2 No .1 Ratings Electrical RatingsIEC 947 Ratings Operation Shunt Trip and Undervoltage TripUndervoltage trip Shunt trip MXManual Operation Motor OperatorApplications AutomaticKeylock for locking in OFF position Accessories forCharacteristics NSJ400/600Directly Mounted Rotary Operating HandlesDoor Mounted Operating Cable Operating HandleFlange-mounted Handle CableLocking In the Off Position Locking SystemsWith Rotary Handles Interlocking AccessoriesInterlocking of Circuit Breakers with Toggle Control Interlocking of Circuit BreakersUse Front-panel Escutcheons for Toggle Toggle BootFRONT-PANEL Escutcheons For Fixed or Plug- in MountingToggle Collars Sealing AccessoryFor Drawout Mounting IdentificationMounting on Backplate DimensionsDimensions Fixed MountedR12 R13 Front-panel Cutouts With Toggle Boot With EscutcheonC20 C21 H53 H54PLUG-IN and Drawout Mounting Dimensions Plug-in On BaseDrawout On Chassis Front-panel Cutouts Plug-in Mounting See Fixed-mounted InstallationMounting Through a Backplate Plug-in Base On Rails Plug-in Base or ChassisK11 K12 K13 K20 K21 C11 C17 G10 G11 G12 G13 G20 G21 H16 H17 H18 H19L10 P12 P44 C22 C23 H20 H21 H22 H23 L11 L12 P32 P33 P45 R14 Dimension TableMotor Operators Front-panel CutoutsCompact NSF CABLE-OPERATING HandlesCompact NSJ ROTARY-OPERATING Handles DimensionsFront-panel Cutout Drawout Mounting ØT6 ØT7 C11 C17 C22 C23 G36 G37 G38 G39 H10 H20 H23 H24 H25H26 K14 K15 L11 L12 L13 L14 L15 P34 P35 P36 P37 P38 P40 P42 P43 P44 R14 R15Extended Escutcheons For Toggle Front AccessoriesFront-panel Escutcheons L16 L17 R19 Interlocking SystemsConnection Dimensions G33 G35 P22 P23 Plug-in or Drawout MountingManually-operated Circuit Breaker Wiring DiagramsMotor-operated Circuit Breaker OFF Trip Units for Compact NSF150-NSF250 Circuit Breakers Supplementary Technical InformationTM50DP TM90DP Example Effect of High Temperatures45 C 50 C 55 C 60 C 65 C 70 C STR53UP Trip Units for Compact NSJ400-NSJ600 Circuit BreakersKA RMS Reflex TrippingMaximum Peak Let-through Current Amperes LET-THROUGH Curves AT 480Maximum Let- through I2t Amperes2 Seconds Seconds LET-THROUGH Curves AT 600Maximum * Let CURRENT-LIMITING Curves AT 380/415CURRENT-LIMITING Curves AT 690 Calibration UL 489 Test ProcedureStandard Specifications TemperatureEndurance OverloadTests On AccessoriesDielectric Optional TestsTwo Categories of Devices Breaking Capacity IEC 947-2 Test ProcedureFunction IsolationSequence Category of Devices Tests Test SequencesRoutine and Maintenance Guidelines Insulation Resistance Tests Page Replaces 0615CT9901 dated 03/1999
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