User manual
Bulletin 156-B
Solid State Contactors
1-46
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Rockwell Automation
POWER
Current Rating
Control Voltage
Housing Size
Operational Voltage
@ 25 °C @ 40 °C
24…230V AC 42…600V AC
[A] [A] [mm]
Cat. No. Cat. No.
20 17
24…275V AC, 24…48V DC
22.5
156-B20AA1 156-B20CA1
5…24V DC
156-B20AB1 156-B20CB1
30 25
24…275V AC, 24…48V DC
156-B30AA1 156-B30CA1
5…24V DC
156-B30AB1 156-B30CB1
45 38
24…275V AC, 24…48V DC
45
156-B45AA1 156-B45CA1
5…24V DC
156-B45AB1 156-B45CB1
50 43
24…275V AC, 24…48V DC
156-B50AA1 156-B50CA1
5…24V DC
156-B50AB1 156-B50CB1
70 60
24…275V AC, 24…48V DC
90
156-B70AA1 156-B70CA1
5…24V DC
156-B70AB1 156-B70CB1
75 64
24…275V AC, 24…48V DC
45
156-B75AA1 156-B75CA1
5…24V DC
156-B75AB1 156-B75CB1
90 77
24…275V AC, 24…48V DC
90
156-B90AA1 156-B90CA1
5…24V DC
156-B90AB1 156-B90CB1
With fan. External fan supply 24V DC required.
Current Rating
Control Voltage
Housing Size
Operational Voltage
@ 25 °C @ 40 °C
24…230V AC 48…600V AC
[A] [A] [mm]
Cat. No. Cat. No.
25 20
24…275V AC, 24…190V DC
45
156-B25AA2 156-B25CA2
5…24V DC
156-B25AB2 156-B25CB2
32 25
24…275V AC, 24…190V DC
90
156-B32AA2 156-B32CA2
5…24V DC
156-B32AB2 156-B32CB2
Dual-Phase
Single-Phase
Solid-State Power Contactors
Product Selection
Solid-State Contactors
The Bulletin 156 Solid-State Contactors are ideal replacements for electro-mechanical contactors
where fast and demanding switching of loads such as heaters, solenoids, transformers, and motors,
is required.
Compact modular design complete with heatsink
DIN Rail mountable
Simple installation
Available in single-phase, dual-phase, or three-phase version
Operational current rating 20…90 A
LED status indication
AC, DC, and analog control options
Zero-cross switching










