Motor Control, Solid-State

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Contactors

Specifications

General
		Single-Phase and Single-Phase with Current Monitoring		Dual- and Three-Phase		Single-Phase with Analog Control
Nominal Voltage Rating		230V AC	400/480/600V AC	230V AC	400/480/600V AC	230V AC	400/480V AC	600V AC
Operational Voltage Range		24…265V AC	42…660V AC	24…280V AC	48…660V AC	90…265V AC	200…550V AC	410…660V AC
Blocking Voltage		650Vp	1200Vp	650Vp	1200Vp	650Vp	1200Vp	1200Vp
Operational frequency		45…65 Hz
Power Factor Minimum		³ 0.5 @ 230V AC rms	³ 0.5 @ 600V AC rms	³ 0.5 @ 230V AC rms	³ 0.5 @ 600V AC rms	³ 0.9 @ 230V AC rms	³ 0.9 @ 480V AC rms	³ 0.9 @ 600V AC rms
Rated Insulation Voltage — Input to output, output to case		4000V AC rms
Relay ON Indication		Green LED, ON when control input is detected
Overtemp Alarm ON Indication⋆		Red LED, on when the solid-state contactor (SSC) temperature switching element (SCR) temperature is exceeded. SSC output (load) will switch OFF (Green LED: OFF). When overtemperature condition is removed, red LED will go OFF and normal operation will continue on the control input cycle.
Overtemp Alarm⋆	I max.	50 mA DC	50 mA DC	50 mA DC	50 mA DC	—	—	—
	U max.	50V DC	50V DC	50V DC	50V DC	—	—	—
Standards Compliance		cULus
Environmental
Operating Temperature		-30…+70 °C (-22…+158 °F)
Storage Temperature		-40…+100 °C (-40…+212 °F)
RoHS Compliance		Yes
Vibration		6 G (per EN50155)
Pollution Degree		2
Mechanical
Housing Material		PBT, Flame Retardent
Heat Sink Material		Black Anodized Aluminum
Din Rail Mount Base		Electroplated Steel
Mounting		Vertical
Approximate Weight	22.5 mm	0.225 kg (0.5 lb)
	45 mm	0.43 kg (0.95 lb)
	45 mm with Integrated Fan	0.46 kg (1.0 lb)
	90 mm	0.75 kg (1.65 lb)
	90 mm with Integrated Fan	0.78 kg (1.72 lb)
Contactor Type		Single Phase				Dual- and Three-phase
Package Size		22.5 mm		45 and 90 mm		45 and 90 mm
Control Terminals	Screw Type	M4		M3		M3
	min wire size	1 x 0.5 mm2 (1 x 20 AWG)		1 x 0.5 mm2 (1 x 20 AWG)		(one wire min. & max.) 1 x 0.5 mm2 (1 x 20 AWG)…1 x 4.0 mm2 (1 x 12 AWG)
	max wire size	2 x 2.5 mm2 (2 x 14 AWG)		1 x 4.0 mm2 (1 x 12 AWG) or 2 x 2.5 mm2 (2 x 1 4 AWG)		(two wire min. & max.) 2 x 0.5 mm2 (2 x 20 AWG)…2 x 2.5 mm2 (2 x 1 4 AWG)
	max torque	2 N•m		0.6 N•m		0.6 N•m
	bit type	posidrive 1 bit		posidrive 0 bit		posidrive 0 bit
Power Terminals	Screw Type	M4		M5		M3
	min wire size	1 x 0.5 mm2 (1 x 20 AWG)		1 x 4.0 mm2 (1 x 12 AWG)		(one wire min. & max.) 1 x 0.5 mm2 (1 x 20 AWG)…1 x 4.0 mm2 (1 x 12 AWG)
	max wire size	2 x 2.5 mm2 (2 x 14 AWG)		1 x 25 mm2 (1 x 3 AWG) or 2 x 10 mm2 (2 x 6 AWG)		(two wire min. & max.) 2 x 0.5 mm2 (2 x 20 AWG)…2 x 2.5 mm2 (2 x 14 AWG)
	max torque	2 N•m		2.5 N•m		0.6 N•m
	bit type	posidrive 1 bit		posidrive 2 bit		posidrive 0 bit
⋆ Alarm capability exists on 1-phase 75 and 90 A, 5…24V DC control and 3-phase 32 A, 5…24V DC control units.

Control Input
Control voltage range (±10%)	Single-Phase, Single-Phase with Current Monitoring, and Single-Phase with Analog Control		Dual- and Three-Phase
	DC	AC/DC	DC	AC/DC
Control Voltage Range	4…32V	24…275V AC/24…48V DC	5…32V DC	24…275V AC/24…190V DC
Pick Up Voltage	3.8V DC	22V AC/DC	4.7V DC	22V AC/DC
Reverse Voltage	32V DC	—	32V DC	—
Drop Out Voltage	1.2V DC	6V AC/DC	1.2V DC	6V AC/DC
Maximum Input Current	12 mA	17 mA	24 mA	15 mA
Maximum Response Time Pick Up and Drop Out	1/2 Cycle	1 Cycle	1 Cycle	1 Cycle

Power Output

Housing Size [mm]

Rated Operational Current‡ ♦

Min. Oper. Current

Max. Repetitive Overload Current (ACrms) t = 1 s

Non-Repetitive Surge Current (ACrms) Tj = 25 °C t = 10 ms

Max. Off-State Leakage Current @ Rated Voltage and Frequency Tj = 25 °C t = 10 ms

I2t for Fusing t = 10 ms♣

Max. SCCR (65 kA) Fuse Current§

On-State Voltage Drop @ Rated Current Tj = 25 °C t = 10 ms

Critical dV/dT Off-State

AC51 @ 25 °C

AC53a @ 25 °C

Single-Phase

156-B20…1

22.5

20 A

5 A

350 mA

35 A

300 A

3 mA

450 A2s

20 A

1.6 Vrms

500 V/uS

156-B30…1

22.5

30 A

15 A

250 mA

125 A

600 A

3 mA

1800 A2s

40 A

1.6 Vrms

500 V/uS

156-B45…1

45

45 A

20 A

400 mA

150 A

1150 A

3 mA

6600 A2s

60 A

1.6 Vrms

500 V/uS

156-B50…1

45

50 A

30 A

500 mA

200 A

1900 A

3 mA

18000 A2s

90 A

1.6 Vrms

500 V/uS

156-B70…1

90

70 A

30 A

500 mA

200 A

1900 A

3 mA

18000 A2s

90 A

1.6 Vrms

500 V/uS

156-B75…1

45 with fan∆

75 A

30 A

500 mA

200 A

1900 A

3 mA

18000 A2s

90 A

1.6 Vrms

500 V/uS

156-B90…1

90 with fan∆

90 A

30 A

500 mA

200 A

1900 A

3 mA

18000 A2s

90 A

1.6 Vrms

500 V/uS

Dual-Phase

156-B25…2

45

25 A

15 A

250 mA

125 A

600 A

3 mA

1800 A2s

40 A

1.6 Vrms

500 V/uS

156-B32…2

90

32 A

15 A

250 mA

125 A

600 A

3 mA

1800 A2s

40 A

1.6 Vrms

500 V/uS

Three-Phase

156-B20…3

45

20 A

15 A

250 mA

125 A

600 A

3 mA

1800 A2s

40 A

1.6 Vrms

500 V/uS

156-B25…3

90

25 A

15 A

250 mA

125 A

600 A

3 mA

1800 A2s

40 A

1.6 Vrms

500 V/uS

156-B32…3

45 with fan∆

32 A

15 A

250 mA

125 A

600 A

3 mA

1800 A2s

40 A

1.6 Vrms

500 V/uS

Single-Phase with Current Monitoring

156-B30…

45

30 A

15 A

150 mA

125 A

600 A

5 mA

1800 A2s

40 A

1.6 Vrms

1000 V/uS

156-B50…

45

50 A

30 A

500 mA

200 A

1900 A

5 mA

18000 A2s

90 A

1.6 Vrms

1000 V/uS

Single-Phase with Analog Control

156-B30…

45

30 A

—

150 mA

55 A

325 A

3 mA

525 A2s

30 A

1.6 Vrms

1000 V/uS

156-B50…

45

50 A

—

500 mA

200 A

1900 A

3 mA

18000 A2s

90 A

1.6 Vrms

1000 V/uS

‡ AC51 indicates a resistive load. For details, refer to IEC 60947-4-3. AC53a indicates an inductive (motor) load. For details, refer to IEC 60947-4-2.

♣ To potentially protect the solid-state contactor from a short-circuit condition, select a semiconductor fuse with an I2T value less than the one indicated below for the SSC.

§ Provides Type 1 protection using a Class J or CC fuse.

∆ Includes an integrated fan in the heat sink assembly. Fan will automatically switch on when necessary (approximately 125 °C internal temp.). DC control Includes overtemperature alarm cutout.

♦ Current per each phase.

Power Dissipation
	Size [A]	Power Dissipation [W/A]
Single-Phase	20	1.10
	30	0.95
	45	0.90
	50	0.85
	75	0.90
	70	0.90
	90	0.93
Dual-Phase	25/32	2.80
Three-Phase	20/25/32	1.92
Single-Phase with Current Monitoring	30	1.00
	50	0.85
Single-Phase with Multi-Function Analog Control	30	0.95
	50	0.85

Additional Specifications that only apply to the Single-Phase with Current Monitoring Contactor
Supply Status Indication		Green LED, Half Intensity
Control Status Indication		Green LED
Overtemp Alarm Trip Indication		Red LED, Intermittent
Alarm Indication (except for overtemp alarm)		Red LED
Power Supply Voltage, Vcc		24V DC +/- 15%
Maximum Supply Currrent		22 mA (per device)
Maximum Control Input Current		1.5 mA
Maximum PLC Current @ 24 VDC		275 uA (per device)
Alarm Output Current, Maximum		50 mA DC
Alarm Output Voltage	NPN (N.O.)	1 + 0.15 Io
	PNP (N.O.)	VCC - 1 - 0.15 Io
Maximum number of Parallel Outputs		£ 50
Current Monitoring Measurement Range	30 A	0.3 … 30 A AC rms
	50 A	0.5 … 50 A AC rms
Minimum Teach Current	30 A	0.3 A AC rms
	50 A	0.5 A AC rms
Minimum Partial Load Current	30 A	50 mA AC rms
	50 A	83 mA AC rms

Additional Specifications that only apply to the Single-Phase with Multi-Function Analog Control Contactor
Load Status Indication		Red LED
Control Status Indication		Green LED
Current Controlled Input Specifications	Control Current Range	4…20 mA
	Max. Allowable Current	50 mA
	Pick Up Current	4.2 mA
	Drop Out Current	3.9 mA
	Reverse Polarity Protected	Yes
	Voltage Drop	10V DC @ 20 mA
Voltage Controlled Input Specifications	Supply Voltage Range, Vss♣	20…28V AC/DC
	Supply Current♣	18 mA @ 24V DC 23 mA @ 24V AC
	Control Voltage Range, Vcc	0…10V DC
	Control Input Current	0.1 mA @ 10V DC
	Reverse Polarity Protected	Yes
	Pick up Voltage	0.5V DC
	Drop out Voltage	0.05V DC
Output Power Range		0…99%
Transfer Characteristics - Output Power %		Current Control Level	Voltage Control Level
	0%	4 mA	0V DC
	25%	8 mA	2.5V DC
	50%	12 mA	5V DC
	75%	16 mA	7.5V DC
	99%	20 mA	10V DC
Output Power Resolution	Mode 1 - Phase Angle	1/300 @ 50 Hz , 1/300 @ 60 Hz
	Mode 2 - Full Cycle	1/64 @ 50 Hz , 1/64 @ 60 Hz
	Mode 3 - 1 Sec Burst	1/50 @ 50 Hz , 1/60 @ 60 Hz
	Mode 4 - 3 Sec Burst	1/150 @ 50 Hz , 1/180 @ 60 Hz
	Mode 5 - 10 Sec Burst	1/500 @ 50 Hz , 1/600 @ 60 Hz
♣ The 0…10V DC type contactor requires a 24V AC/DC supply to power the control circuitry of the solid-state contactor.

Applications for Non-Motor Loads





Applications for Non-Motor Loads, Continued





Typical Wiring Diagrams

Single-Phase





Typical Wiring Diagrams, Continued

Dual-Phase



Typical Wiring Diagrams, Continued

Three-Phase



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Single-Phase with Current Monitoring (PNP)



Single-Phase with Current Monitoring (NPN)





Typical Wiring Diagrams, Continued

Multi-function Analog




Load Versus Ambient Temperature Derating Curves

Single-Phase (Standard)


Single-Phase (Current Monitoring and Multifunction Analog)



Dual- and Three-Phase



Panel Mounting Recommended Contactor Spacings



Panel Mounting Load Derating vs. Spacing Curves

Single-Phase







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Single-Phase





Panel Mounting Load Derating vs. Spacing Curves, Continued

Single-Phase





Panel Mounting Load Derating vs. Spacing Curves, Continued

Dual-Phase





Panel Mounting Load Derating vs. Spacing Curves, Continued

Three-Phase





Panel Mounting Load Derating vs. Spacing Curves, Continued

Three-Phase



Panel Mounting Load Derating vs. Spacing Curves, Continued

Single-Phase with Current Monitoring





Panel Mounting Load Derating vs. Spacing Curves, Continued

Multi-function Analog