BEW(W) Models

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Features of BEW(W) Models

These are compact, high-capacity, widely compatible power supplies that can be used in the full range of electromagnetic clutches and brakes of rated voltage of 45 V DC/90 V DC/180 V DC.The direct current required to operate electromagnetic clutches and brakes can be obtained simply by connecting/inputting using 100 V AC, 200 V AC, or 400 V AC specifications. Since they can handle half-wave/full-wave rectified output by switching the connection method, electromagnetic clutches and brakes of various specifications can be handled by these power supplies alone.

BEW(W) Models Specifications

BEW (W) Types

[Specifications]

Model	BEW-4W
Input voltage	AC100V	± 10％ 50 Hz/60 Hz	●	●
AC200V			●	●
AC400V					●	●
Maximum input voltage	AC510V
Rectification method	For both half- and full-wave rectification
Half-wave	Full-wave	Half-wave	Full-wave	Half-wave	Full-wave
Output voltage	DC45V	DC90V	DC90V	DC180V	DC180V	DC360V
Output current	When the ambient temperature is 20℃ values in () are for an ambient temperature of 60℃	DC3.0A (DC2.5A)
Output Wattage	When the ambient temperature is 20℃ values in () are for an ambient temperature of 60℃	135W (112W)	270W (225W)	270W (225W)	540W (540W)	540W (540W)	1080W (900W)
Size settings	Voltage specifications numbers in parentheses are input voltages	DC45V (AC100V, half-wave)	DC90V (AC100V, full-wave)	DC90V (AC200V, half-wave)	DC180V (AC200V, full-wave)	DC180V (AC400V, half-wave)	DC360V (AC400V, full-wave)
●: Applicable △: Applicable depending on model of clutch or brake	01	●	●	●	●	●
02	●	●	●	●	●
03	●	●	●	●	●
04	●	●	●	●	●
05	●	●	●	●	●
06	●	●	●	●	●
08	●	●	●	●	●
10	△	●	●	●	●
12	△	●	●	●	●
14	△	●	●	●	●
16	△	●	●	●	●
18	△	●	●	●	●
20	△	●	●	●	●
25	△	●	●	●	●
Applied clutches/brakes	MIKI PULLEY electromagnetic -actuated clutches and brakes Rated voltage DC 45/90/180 V	Spring-actuated brake
Insulating resistance	Between terminal and body	DC 500 V, 100 M Ω with Megger
2200 V AC, 50 Hz, 1 min.
Usage environment	With no condensation	-20 ～ +60℃ / 10 ～ 90%RH
Mass	Per product	0.045 kg

Model

BEW-4W

Input voltage

AC100V

± 10％ 50 Hz/60 Hz

●

AC200V

●

AC400V

●

Maximum input voltage

AC510V

Rectification method

For both half- and full-wave rectification

Half-wave

Full-wave

Half-wave

Full-wave

Half-wave

Full-wave

Output voltage

DC45V

DC90V

DC180V

DC360V

Output current

When the ambient temperature is 20℃ values in () are for an ambient temperature of 60℃

DC3.0A (DC2.5A)

Output Wattage

When the ambient temperature is 20℃ values in () are for an ambient temperature of 60℃

135W (112W)

270W (225W)

540W (540W)

1080W (900W)

Size settings

Voltage specifications numbers in parentheses are input voltages

DC45V
(AC100V, half-wave)

DC90V
(AC100V, full-wave)

DC90V
(AC200V, half-wave)

DC180V
(AC200V, full-wave)

DC180V
(AC400V, half-wave)

DC360V
(AC400V, full-wave)

●: Applicable △: Applicable depending on model of clutch or brake

●

△

●

△

●

△

●

△

●

△

●

△

●

△

●

Applied clutches/brakes

MIKI PULLEY electromagnetic
-actuated clutches and brakes
Rated voltage DC 45/90/180 V

Spring-actuated brake

Insulating resistance

Between terminal and body

DC 500 V, 100 M Ω with Megger

2200 V AC, 50 Hz, 1 min.

Usage environment

With no condensation

-20 ～ +60℃ / 10 ～ 90%RH

Mass

Per product

0.045 kg

[Dimensions]

[Structure]

[Terminals and Functions]

Terminal symbol	Terminal name	Function description
1－2	Power supply input terminal	Connector for a commercial power supply
3－4	Output terminal	Connector for an electromagnetic clutch or brake

Terminal symbol

Terminal name

Function description

1－2

Power supply input terminal

Connector for a commercial power supply

3－4

Output terminal

Connector for an electromagnetic clutch or brake

[Characteristics]

For Both Half-wave Rectified and Full-wave Rectified

For BEW-4W types, you can select between half-wave rectified and fullwave rectified by changing the connections of the wiring as shown in the figure at right.
These power supply devices are high Wattage and allow a wide range of voltage inputs, from low voltage to high. As a result, a wide variety of electromagnetic clutches and brakes can be handled by a single BEW-4W power supply alone.
You can either focus on the type of brake, assuming you will rewire, or conversely, handle a variety of types of brakes with a BEW-4W power supply alone.
[How to Calculate Output Voltage]
Output voltage = Input voltage × a (a set coefficient)
* a (set coefficient) = 0.45: half-wave rectified/0.9: full-wave rectified
(Ex.)
Half-wave: AC200V × 0.45 = DC90V
Full-wave: AC100V × 0.9 = DC90V
Note that when the rated voltage of the electromagnetic coil does not match the output voltage calculated above, you will not be able to obtain the electromagnetic clutch/brake characteristics given in the specifications.

[Wiring Methods and Timing Charts]

Primary Control

Secondary Control

BEW(W) Models

Features of BEW(W) Models

BEW(W) Models Specifications

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