NEMA Size 2 LTG Combination Cntcr Ckt

Catalog #: 503L-CCB-3-6P-36T

Lifecycle status: Active

Lifecycle status: Active

Voltage type for actuating	AC
With transformer	True
Rated control supply voltage at AC 50 Hz	480 V
Rated control supply voltage at AC 60 Hz	480 V
Service limit current rating	52 A
Continuous current	45 A
Circuit closing inrush current peak including offset, max	483 A
Heat dissipation	5.9 W (4...5 poles)
Available short circuit amperes RMS symmetrical	65000A @ 480V
Coil operating limits	85...110% (4...5 poles)
Circuit breaker type	Inverse time, standard interrupting capacity
Operating volt amperes burden	Sealed: 38VA, 60 Hz coils (4...5 poles)
Continuous current/horsepower	1.5 Hp (motor protection), 60 A (ftder protection)
Continuous ampere rating, max	60 A @ non-motor & lighting loads
Transformer primary switching kVA rating	8.9 kVA @ 575V load voltage, 3-phase (inrush current = 20...40 times continuous current)
Capacitor switching kVAR	31 kVAR @ 575V, 3-phase (If maximum available current (at capacitor terminals) is greater than 3000 A, contact your local Rockwell Automation sales office, Allen-Bradley distributor, or NEMA ICS-2 standard)
Factory installed models	Transformer with 2 primary & 1 sary fuse
Features	Combination Lighting Contactors with Circuit Breaker

Number of auxiliary contacts, max	8
Weight, approx	40 lb
Mechanical life operations	1.0E7 None
Operating time, drop-out	13 ms
Operating time, pick-up	27 ms
Enclosure type	NEMA 4/4X stainless steel

Required torque on power terminal wire clamps and pressure connectors or lugs	45 in-lb
Depth, approx	8.25 mm
Auxiliary contact material	Silver
Type of power terminal	Pressure terminals
Width, approx	10.5 in
Height, approx	27.5 in
Wire size	For power terminals: 14...4 AWG
Power contact material	Silver alloy
Requirements for sizing of wire	All wire rated 167 °F (75 °C) or higher must be sized per the local electrical code for 167 °F (75 °C) wire

Operating position	Vertical
Altitude	10000 ft before derating
Operating temperature	Starters with eutectic alloy overload relay (provided condensation is prevented): -13...149 °F (-25...65 °C)
Corrosion-resistance	All metal parts are treated for corrosion-resistance

Sales Info

Tipo	Medio	Publicación
General	Product Cutsheet	--

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Technical Specifications

Voltage type for actuating	AC
With transformer	True
Rated control supply voltage at AC 50 Hz	480 V
Rated control supply voltage at AC 60 Hz	480 V
Service limit current rating	52 A
Continuous current	45 A
Circuit closing inrush current peak including offset, max	483 A
Heat dissipation	5.9 W (4...5 poles)
Available short circuit amperes RMS symmetrical	65000A @ 480V
Coil operating limits	85...110% (4...5 poles)
Circuit breaker type	Inverse time, standard interrupting capacity
Operating volt amperes burden	Sealed: 38VA, 60 Hz coils (4...5 poles)
Continuous current/horsepower	1.5 Hp (motor protection), 60 A (ftder protection)
Continuous ampere rating, max	60 A @ non-motor & lighting loads
Transformer primary switching kVA rating	8.9 kVA @ 575V load voltage, 3-phase (inrush current = 20...40 times continuous current)
Capacitor switching kVAR	31 kVAR @ 575V, 3-phase (If maximum available current (at capacitor terminals) is greater than 3000 A, contact your local Rockwell Automation sales office, Allen-Bradley distributor, or NEMA ICS-2 standard)
Factory installed models	Transformer with 2 primary & 1 sary fuse
Features	Combination Lighting Contactors with Circuit Breaker

Number of auxiliary contacts, max	8
Weight, approx	40 lb
Mechanical life operations	1.0E7 None
Operating time, drop-out	13 ms
Operating time, pick-up	27 ms
Enclosure type	NEMA 4/4X stainless steel

Required torque on power terminal wire clamps and pressure connectors or lugs	45 in-lb
Depth, approx	8.25 mm
Auxiliary contact material	Silver
Type of power terminal	Pressure terminals
Width, approx	10.5 in
Height, approx	27.5 in
Wire size	For power terminals: 14...4 AWG
Power contact material	Silver alloy
Requirements for sizing of wire	All wire rated 167 °F (75 °C) or higher must be sized per the local electrical code for 167 °F (75 °C) wire

Operating position	Vertical
Altitude	10000 ft before derating
Operating temperature	Starters with eutectic alloy overload relay (provided condensation is prevented): -13...149 °F (-25...65 °C)
Corrosion-resistance	All metal parts are treated for corrosion-resistance

Sales Info

Documentos

Product Cutsheet General
--

Tipo	Medio	Publicación
General	Product Cutsheet	--

Looking for more documentation?

Find curated technical documentation for this product in the Technical Documentation Center, or search our full Literature Library.

Technotes

Looking for more Technotes?

Find questions and answers from Rockwell Automation technical experts for this product in our Knowledgebase.