BEM Model, Small Lead-Wire Type

Compact power supply for DC45, 90, and 180V spring-actuated brakes. AC100, 200, or 400V input provides the required DC output. Its fully resin-molded case enables use in dusty environments while remaining compact and lightweight.

[Specifications]

BEM-H/F Specifications

Model			BEM-2H		BEM-4H			BEM-2F
Input Voltage	AC 100 V	±10% 50/60 Hz	●		●			●
	AC 200 V	±10% 50/60 Hz		●		●			●
	AC 400 V	±10% 50/60 Hz					●
Maximum input voltage			AC 250 V		AC 510 V			AC 250 V
Rectification method			Half-wave rectification					Full-wave rectification
Output Voltage			DC 45 V	90 V DC	DC 45V	90 V DC	180 V DC	DC 90V	DC 180 V
Output current	At an ambient temperature of 20°C (values in parentheses are for 60°C)		DC 1.0 A (DC 0.6 A)		DC 1.0 A (DC 0.6 A)			DC 1.0 A (DC 0.6 A)
Output capacity	At an ambient temperature of 20°C (values in parentheses apply at 60°C)		45W (25W)	90W (50W)	45W (25W)	90W (50W)	180W (100W)	90W (50W)	180W (100W)
Size Settings	Voltage Specifications (Input voltage in parentheses)		DC 45V (AC 100V)	DC 90V (AC 200V)	DC 45V (AC 100V)	DC 90 V (AC 200 V)	DC 180 V (AC 400 V)	DC 90 V (AC 100 V)	DC 180 V (AC 200 V)
	●: Applicable △: Applicable depending on clutch/brake model	01	●	●	●	●	●	●	●
		03	●	●	●	●	●	●	●
		04	●	●	●	●	●	●	●
		05	●	●	●	●	●	●	●
		06	●	●	●	●	●	●	●
		08	●	●	●	●	●	●	●
		10	●	●	●	●	●	●	●
		12		●		●	●	●	●
		14		●		●	●	●	●
		16		●		●	●	●	●
		18		△		△	●	△	●
		20		△		△	△	△	●
		25		△		△	△	△	●
Applicable Clutches and Brakes	Our Electromagnetic Clutches and Brakes Rated Voltage: DC 45/90/180 V		Non-energized brake
Insulation Resistance	Between terminals and main body		100 MΩ measured with a DC 500 V megohmmeter
Dielectric Withstand Voltage	Between terminals and main body		AC 1500 V, 50 Hz, 1 minute		AC 2200 V, 50 Hz, 1 minute			AC 1500 V, 50 Hz, 1 minute
Lead wire	UL Style/Size		UL3398, AWG22		UL 3271, AWG 22			UL 3398, AWG 22
Operating Environment	No condensation		-15 to +60°C
Weight	Per unit		0.020 kg		0.021 kg			0.023 kg

三木プーリのBEMモデルクラッチ・ブレーキ用電源（CB 整流電源）ご注文時の型式構成説明図

[Dimensions]

三木プーリのクラッチ・ブレーキ用電源CB整流電源BEMモデル寸法図外形寸法および端子部寸法を示す寸法図

[Pins and Functions]

Lead Wire Color	Function Name	Function Description
Yellow (2 wires)	Input side	Connect to commercial power
Red and White	Output side	Connect the electromagnetic clutch and brake

[Characteristics]

Supports both half-wave and full-wave rectification

BEM-2H/4H converts AC power to half-wave DC. Its simple, low-cost design may cause response variation, hum noise, and slightly higher coil heating than full-wave or smoothed supplies due to voltage ripple.

For applications sensitive to these effects, use a BEM-2F full-wave power supply, a smoothed supply, or a DC24V specification. Compared with half-wave supplies, the BEM-2F has lower ripple and provides more consistent clutch/brake response.

Output Voltage = Input Voltage × a (a=0.45: half-wave, 0.9: full-wave). Example: BEM-2H/4H: AC200V×0.45=DC90V; BEM-2F: AC100V×0.9=DC90V. Coil rated voltage must match the calculated output voltage to ensure specified clutch/brake performance.

【Wiring Method and Timing Chart】

〉 Primary-Side Control

〉 Secondary-Side Control