Soft Starters

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SMC™-3 Smart Motor Controllers

Specifications

Standard Features
Selectable Start Times			2, 5, 10, 15, 20, 25, or 30 s
Selectable Initial Torque			0%, 25%, 35%, and 65% of locked rotor torque
Selectable Current Limit			150%, 250%, 350%, and 450% of full load current
Selectable Kick Start — 450% FLA			0, 0.5, 1.0, or 1.5 s
Selectable Soft Stop			Off, 100%, 200%, or 300% of the start time setting when wired
Electrical Ratings
			UL/CSA/NEMA			IEC
Power Circuit	Rated Operation Voltage		200…480V AC 200…600V AC			200…480V~ — 400V~ 500V~ — 500V~
	Rated Insulation Voltage		600V AC			500V~
	Dielectric Withstand		2200V AC			2500V~
	Repetitive Peak		200…480V AC: 1400V 200…600V AC: 1600V			200…480V~: 1400V 500V~: 1600V
	Operating Frequency		50/60 Hz			50/60 Hz
	Utilization Category	1…37 A	—			AC-53b: 3.5-15:3585
		43…60 A	—			AC-53b: 4.5-30:1770
		85 A	—			AC-53b: 4.5-30:3570
		108 A	—			AC-53b: 4.5-30:1770
		135 A	—			AC-53b: 3.5-30: 1770
		201…251 A	—			AC-53b: 3.5-30: 1770
		317…480 A	—			AC-53b: 3.5-30: 1770
	Number of Poles		Equipment designed for 3-phase only
	Rated Impulse Voltage		6 kV
	DV/DT Protection		1000V/ms
	Overvoltage Category		III
Short Circuit Protection	SCPD Performance		Type 1
			Non-Time Delay		Thermal Magnetic Circuit Breaker		High Capacity Time Delay Class CC/J/L
	SCPD List‡		Max. Standard Available Fault	Max. Standard Fuse (A)T	Max. Standard Available Fault	Max. Circuit Breaker (A)	Max. Standard Available Fault	Max. Fuse (A)
	Line Device Operational Current Rating (A)	3	5 kA	12	5 kA	15	70 kA	6
		9	5 kA	30	5 kA	30	70 kA	15
		16	5 kA	60	5 kA	60	70 kA	30
		19	5 kA	70	5 kA	70	70 kA	40
		25	5 kA	100	5 kA	100	70 kA	50
		30	10 kA	110	10 kA	110	70 kA	60
		37	10 kA	125	10 kA	125	70 kA	60
		43	10 kA	150	10 kA	150	70 kA	90
		60	10 kA	225	10 kA	225	70 kA	125
		85	10 kA	300	10 kA	300	70 kA	175
		108	10 kA	400	10 kA	300	70 kA	200
		135	10 kA	500	10 kA	400	70 kA	250
		201	18 kA	600	18 kA	600	70 kA	350
		251	18 kA	700	18 kA	700	70 kA	400
		317	30 kA	800	30 kA	800	69 kA	500
		361	30 kA	1000	30 kA	1000	69 kA	600
		480	42 kA	1200	42 kA	1200	69 kA	800
	Delta Device Operational Current Rating (A)	5.1	5 kA	15	5 kA	15	70 kA	10
		16	5 kA	60	5 kA	60	70 kA	30
		27.6	5 kA	70	5 kA	70	70 kA	60
		32.8	5 kA	125	5 kA	125	70 kA	70
		43	5 kA	150	5 kA	150	70 kA	90
		52	10 kA	200	10 kA	200	70 kA	100
		64	10 kA	250	10 kA	250	70 kA	100
		74	10 kA	250	10 kA	250	70 kA	150
		104	10 kA	400	10 kA	300	70 kA	225
		147	10 kA	400	10 kA	400	70 kA	300
		187	10 kA	600	10 kA	500	70 kA	400
		234	10 kA	700	10 kA	700	70 kA	400
		348	18 kA	1000	18 kA	1000	70 kA	600
		435	18 kA	1200	18 kA	1200	69 kA	800
		549	30 kA	1600	30 kA	1600	69 kA	1000
		625	30 kA	1600	30 kA	1600	69 kA	1200
		831	42 kA	1600	30 kA	1600	69 kA	1600
		831	42 kA	1600	42 kA	1200	69 kA	1600
T Non-time delay fuses (K5).
‡ Consult local codes for proper sizing of short-circuit protection.

Electrical Ratings
			UL/CSA/NEMA		IEC
Control Circuit	Rated Operational Voltage (+10%, –15%)		100…240V AC, 24V AC/DC		100…240V~, 24V AC/DC
	Rated Insulation Voltage		250V		250V~
	Rated Impulse Voltage		2.5 kV		4 kV
	Dielectric Withstand		1500V AC		2000V~
	Overvoltage Category		II		III¬
	Operating Frequency		50/60 Hz		50/60 Hz
	Input onstate voltage minimum, during start (IN1, IN2)		85V AC, 19.2V DC / 19.2V AC
	Input onstate current (IN1, IN2)		9.8 mA @120V AC/19.6 mA @ 240V AC, 7.3 mA @ 24V AC/DC
	Input offstate voltage maximum (IN1, IN2)		40V AC, 17V DC / 12V AC
	Input offstate current @ input offstate voltage (IN1, IN2)		<10 mA, <12 mA
	Control Power with Fan, during start	3…37 A	215 mA @ 120V AC / 180 mA @ 240V AC, 800 mA @ 24V DC / 660 mA @ 24V AC
		43…85 A	200 mA @ 120V AC / 100 mA @ 240V AC, 700 mA @ 24V AC/DC
			Fan Power	Control Power
		108…135 A	20VA	200 mA @ 120V AC / 120 mA @ 240V AC, 600 mA @ 24V AC/DC
		201…251 A	40VA
		317…480 A	60VA
	Control Power without Fan, during start	3…37 A	205 mA @ 120V AC / 145 mA @ 240V AC, 705 mA @ 24V DC / 580 mA @ 24V AC
Steady State Heat Dissipation and Overload Current Range		Controller Rating (A)	Steady State Heat Dissipation (W)		Overload Current Range (A)
		3	11		1…3
		9	12		3…9
		16	14		5.3…16
		19	15		6.3…19
		25	17		9.2…27.7
		30	19		10…30
		37	24		12.3…37
		43	34		14.3…43
		60	50		20…60
		85	82		28.3…85
		108	62		27…108
		135	75		34…135
		201	129		67…201
		251	147		84…251
		317	174		106…317
		361	194		120…361
		480	239		160…480

Auxiliary Contacts
		UL/CSA/NEMA	IEC
Rated Operational Voltage		250V AC/30V DC	250V~/30V DC
Rated Insulation Voltage		250V	250V~
Rated Impulse Voltage		2.5 kV	4 kV
Dielectric Withstand		1500V AC	2000V~
Overvoltage Category		II	III¬
Operating Frequency		50/60 Hz	50/60 Hz
Utilization Category		D300/D300	AC-15/DC
TB-97, -98 (OVLD/Fault)	Type of Control Circuit	Electromagnetic relay
	Number of Contacts	1
	Type of Contacts	Normally Open (N.O.)
	Type of Current	AC/DC
	Rated Operational Current (max.)	0.6 A @ 120V~ and 0.3 A @ 240V~
	Conventional Thermal Current Ith	1 A
	Make/Break VA	432/72
TB-13, -14 (Normal/Up-to-Speed)	Type of Control Circuit	Electromagnetic relay
	Number of Contacts	1
	Type of Contacts	Normally Open (N.O.)
	Type of Current	AC/DC
	Rated Operational Current (max.)	0.6 A @ 120V~ and 0.3 A @ 240V~
	Conventional Thermal Current Ith	1 A
	Make/Break VA	432/72
¬ Overvoltage category II, when either control or auxiliary circuit is wired to a SELV or PELV circuit.

Electrical Ratings
Side-Mount Auxiliary Contacts
		UL/CSA/NEMA	IEC
Rated Operational Voltage		250V AC/30V DC	250V AC/30V DC
Rated Insulation Voltage		250V	250V AC
Rated Impulse Voltage		2.5 kV	4 kV
Dielectric Withstand		1500V AC	2000V AC
Overvoltage Category		II	III¬
Operating Frequency		50/60 Hz	50/60 Hz
TB-23, -24 (Normal/Up-to-Speed) TB-33, -34 (Normal/Up-to-Speed)	Utilization Category	C300/R150	AC-15/DC-13
	Type of Control Circuit	Electromagnetic relay
	Number of Contacts	1
	Type of Contacts	Normally Open (N.O.)
	Type of Current	AC/DC
	Rated Operational Current (max.)	1.5 A @ 120V AC, 0.75A @ 240V AC, 1.17 A @ 24V DC
	Conventional Thermal Current Ith	2.5 A
	Make/Break VA	1800/180V AC, 28V DC (resistive)
TB-11, -12 (Normal/Up-to-Speed)	Type of Control Circuit	B300/R300	AC-15/DC-13
	Type of Control Circuit	Electromagnetic relay
	Number of Contacts	1
	Type of Contacts	Normally Open (N.O.)
	Type of Current	AC/DC
	Rated Operational Current (max.)	3 A @ 120V AC, 1.5A @ 240V AC, 1.17 A @ 24V DC
	Conventional Thermal Current Ith	5 A
	Make/Break VA	3600/360V AC, 28V DC (resistive)
¬ Overvoltage category II, when either control or auxiliary circuit is wired to a SELV or PELV circuit.

Environmental
Operating Temperature Range	-5…+50 °C (23…122 °F) (open) -5…+40 °C (23…104 °F) (enclosed)
Storage and Transportation Temperature Range	-25…+85 °C (-13…+185 °F)
Altitude	2000 m (6560 ft)
Humidity	5…95% (non-condensing)
Pollution Degree	2
Type of Protection	IP2X

Mechanical Ratings
Resistance to Vibration	Operational		1.0 G Peak, 0.15 mm (0.006 in.) displacement
	Non-Operational		2.5 G Peak, 0.38 mm (0.015 in.) displacement
Resistance to Shock	Operational		15 G
	Non-Operational		30 G
Line Power Terminals	Cable Size Tightening Torque	3…37 A	2.5…25 mm2 (14…4 AWG) 2.3…2.8 N•m (20…25 in-lbs)
		43…85 A	2.5…95 mm2 (14…3/0 AWG) 11.3…12.4 N•m (100…110 in-lbs)
		108…135 A	23 N•m (200 in-lbs)
		201…251 A	Two M10 x 1.5 diameter holes per power pole
		317…480 A	Two M12 x 1.75 diameter holes per power pole
Load Power Terminals	Cable Size Tightening Torque	3…37 A	2.5…16 mm2 (14…6 AWG) 2.3…2.5 N•m (20…22.5 in-lbs)
		43…85 A	2.5…50 mm2 (14…1 AWG) 11.3…12.4 N•m (100…110 in-lbs)
		108…135 A	23 N•m (200 in-lbs)
		201…251 A	Two M10 x 1.5 diameter holes per power pole
		317…480 A	Two M12 x 1.75 diameter holes per power pole
Control Terminals	Cable Size Tightening Torque	All	0.2…2.5 mm2 (24…14 AWG) 0.5…0.9 N•m (4.4…8.0 in-lbs)
Other
			UL/CSA/NEMA	IEC
EMC Emission Levels	Conducted Radio Frequency Emissions		—	Class A
	Radiated Emissions		—	Class A
EMC Immunity Levels	Electrostatic Discharge		4 kV Contact and 8 kV Air Discharge	8 kV Air Discharge
	Radio Frequency Electromagnetic Field		—	Per EN/IEC 60947-4-2
	Fast Transient		—	Per EN/IEC 60947-4-2
	Surge Transient		—	Per EN/IEC 60947-4-2

SMC-3 Overload Trip Curves

Trip Class 10



Trip Class 15



Trip Class 20



Starts per Hour Curves