BES Model (for General High-Speed Control)

This compact, high-capacity over-excitation power supply was developed for general high-speed control and is compatible with all types of electromagnetic clutches and brakes rated at 24 V, 45 V, and 90 V DC.By momentarily applying an over-excitation voltage relative to the rated excitation voltage, it improves the armature engagement time, enabling high-frequency, high-precision operation of electromagnetic clutches and brakes.

[Specifications]

Model	BES-20-□-1	BES-40-□-1	BES-20-□	BES-40-□
Input Voltage	AC 100 V ±10% 50/60 Hz	AC 100 V ±10% 50/60 Hz	AC 200 V ±10% 50/60 Hz	AC 200 V ±10% 50/60 Hz
Output Current	2.0 A	4.0 A	2.0 A	4.0 A
Voltage control method	PWM control
Steady-state excitation voltage	Adjusted for each model and size at the factory
Over-excitation voltage	90 V DC full-wave (with 100 V AC input)		180 V DC full-wave (with 200 V AC input)
Overexcitation time	Adjusted for each model and size at the factory
Protection functions	Input side: Fast-acting fuse (5A)
Insulation resistance	100 MΩ at 500 V DC (between terminals and main unit)
Dielectric Withstand Voltage	AC 1000 V, 50 Hz, 1 minute (between terminals and main unit)
Operating Environment	–10 to +50°C / 10 to 90% RH (no condensation)
Weight	0.3 kg	0.7 kg	0.3 kg	0.7 kg

The output voltage is not isolated from the power supply, so touching it may result in electric shock.

[Dimensions]

三木プーリのクラッチ・ブレーキ用電源CB電源装置BES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]

Terminal Symbols	Terminal Name	Function Description
1-2	Power Input Terminal	Connect the commercial power supply
3-4	Output terminals	Connect the electromagnetic clutch and brake
5-6	Control terminal 1	Control the output by opening and closing the circuit between terminals using a relay, etc.
S1-S2	Control Terminal 2	Controls the output via a 24 VDC ON/OFF signal (30 mA regulated power supply)

5. Unordered List (Asterisk) - 2

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