Product Information

BEW Models Specifications

BEW Models

[Specifications]

ModelBEW-2GBEW-4GBEW-1RBEW-2RBEW-4R
Input voltageAC100V± 10% 50 Hz/60 Hz    
AC200V       
AC400V
Input voltage range AC 280 V max. AC 480 V max. AC90 ~ 140V AC180 ~ 280V AC360 ~ 480V
Rectification method Half-wave rectification For both half- and full-wave rectification
Half-waveFull-waveHalf-waveFull-waveHalf-waveFull-wave
Output voltageDC45VDC90VDC45VDC90VDC180VDC45VDC90VDC90VDC180VDC180VDC360V
Output current When the ambient temperature is 20℃ values in () are for an ambient temperature of 60℃ DC1.0A (DC0.7A) DC1.0A(DC0.7A) DC2.0A (DC1.5A) DC1.0A(DC0.7A) DC0.7A (DC0.5A)
Output Wattage When the ambient temperature is 20℃ values in () are for an ambient temperature of 60℃45 W
(25 W)
90 W
(50 W)
45 W
(25 W)
90 W
(50 W)
180 W
(100 W)
90 W
(50 W)
180 W
(100 W)
90 W
(50 W)
180 W
(100 W)
126 W
(90 W)
252 W
(180 W)
Size settings Voltage specifications Numbers in parentheses are input voltagesDC45V
(AC100V)
DC90V
(AC200V)
DC45V
(AC100V)
DC90V
(AC200V)
DC180V
(AC400V)
DC45V
(AC100V)
DC90V
(AC100V)
DC90V
(AC200V)
DC180V
(AC200V)
DC180V
(AC400V)
DC360V
(AC400V)
●: Applicable
△: Applicable depending on clutch/brake model
01
02 
03
04 
05
06 
08
10 
12  
14  
16  
18  
20  
25  
Applicable clutches/brakes Miki Pulley Clutches & Brakes, Rated voltage: DC 45/90/180 V Spring-actuated brake All
Insulating resistance Between terminal and body DC 500 V, 100 M Ω with Megger
Dielectric strength voltage Between terminal and body 1500 V AC, 50 Hz, 1 min. 2000 V AC, 50 Hz, 1 min. 1500 V AC, 50 Hz, 1 min. 2000 V AC, 50 Hz, 1 min.
Usage environment With no condensation -20℃ to +60℃
Mass Per product 0.04 kg

[Dimensions]

[Structure]

[Terminals and Functions]

ModelTerminal symbolTerminal nameFunction description
BEW-G1-2Power supply input terminalConnector for a commercial power supply
2-3Control terminalOutput is controlled by opening and closing between terminals with a relay or other contact
3-4Output terminalConnector for an electromagnetic clutch or brake
BEW-R1-2Power supply input terminalConnector for a commercial power supply
2-4Output terminal (half-wave)Connector for an electromagnetic clutch or brake (when half-wave rectified)
3-4Output terminal (full-wave)Connector for an electromagnetic clutch or brake (when full-wave rectified))

[Characteristics]

Output type

Two systems are available, half-wave rectified and full-wave rectified. Half-wave rectified takes a commercial power supply as the input and generates a halfwave rectified DC voltage on the output side. These power supply devices are known for their very simple construction and low cost, but their voltage pulse is large. They are therefore prone to generating variations in operating response in electromagnetic clutches and brakes, they produce a howling noise when conducting, and they tend to generate more heat from their electromagnetic coils than full-wave rectified supplies or smoothing supplies.
When the above are to be avoided, consider changing to a full-wave rectified supply, smoothing supply, or a DC 24 V specification.
Full-wave rectified power supply devices are known for having smaller voltage pulses than half-wave rectified supplies and tending to have little variation in electromagnetic clutch and brake operating response. They can thus be used not just for spring-actuated brakes but also for electromagnetic-actuated clutches and brakes.
Note that when the rated voltage of the electromagnetic coil does not match the voltage output from the power supply device, you will not be able to obtain the electromagnetic clutch/brake characteristics given in the specifications.

[Wiring Methods and Timing Charts]

BEW-G Secondary Control (Basic Wiring)

BEW-G Primary Control (Wire Saving)

BEW-G Secondary Control (Wire Saving)

BEW-R Primary Control

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