Made in Japan
Manufacturer : Satuma
Model : BDS5

Since the DC electromagnetic brake is of the DC instantaneous strong-excitation type, it must be strongly excited when the electromagnet is pulled, and weakly excited thereafter. Refer to Fig. 20 and Table 9 when planning an operational circuit.

Types and Ratings of Drum Type Brakes

BDS5 type DC electromagnetic brakes			Brake Type
Operating power source：AC	Operating power source : DC		Electricity supply
——	JEM 1120 (DC electromagnetic brakes for DC motors of auxiliary rolling mill and cranes)		Applicable standard
Off brake (Instantaneous strong-excitation type)			Actuation
For crane hoisting and industrial machinery			Application
– 10°c ~ + 40°c			Ambient temperature
Dustproof type (Main unit: Unprotected type)			Protective structure of operation unit
Class B insulation			Insulation class of operation unit
200V 50Hz、220V 60Hz、400V 50Hz、440V 60Hz	DC220V（110V)		Rated voltage and frequency
60%	Time rating	Continuous	Usage rate of operation unit
400 (cycle/hour)	600 (cycle/hour)		Actuating cycle
Munsell 585/0.5			Coating color

Application of Drum Type Brakes to motors

Features

1. A brake lining with a contact angle of 60° is adopted.

・Excellent initial braking torque characteristics and easy replacement

2. Automatic vertical gap adjustment of brake lining

・Simple maintenance and inspection

3. Can be manually opened

・This no-voltage actuation bake can be manually opened using a special auxiliary nut (bolt.)

4. Large electromagnetic brakes come with an air damper (which can be optionally mounted to other electromagnetic brakes. Please refer to the note column of each specification/external dimension table for the standard equipment scope.)

・Mounting the air damper helps ensure shockless and low-noise operation.

Specifications and external dimensions of the BDS5 Type DC electromagnetic brakes

Note 1: Inform us of the brake type and DC voltage shown in Table 9 when ordering a resistor box. (The one for DC 110 V is also available.)

Note 2. AC operation of the BDS5 type DC electromagnetic brake is permissible using a control box. Use the control box BRD-SC (Fig. 5 on P. 4) for BDS5-1720 to BDS5-3040, and use control box BRD-LC (Fig. 6 on P. 4) for BDS-3348L to BDS5-4058L.

Note 3. Brakes BDS5-3348L or larger come with an air damper, which is also optionally available for brakes BDS5-3040 or smaller. (The sub-symbol L is attached to the symbol of electromagnetic brakes with an air damper.)

Description of symbols

SR ：Series resistor to be added at the time of weak excitation
DR ：Discharging resistor for brake
M1 ：Electromagnetic contactor for excitation
M2 ：Electromagnetic contactor for SR short circuit
T ：Time-limit operation timer 0.5 or 1.0 sec.
MX1 ：Auxiliary relay
MX2 ：Auxiliary relay

External dimensions of the resistor box (mm)

Specifications of brakes for DC power supply

Note 4: BB’ is the dimension of the brake equipped with an air damper (option.)

Note 5: The brake drums (Fig. 19) for BDS5-1720 to 2125 are made of gray cast iron (FC250), and those for BDS5-2533 to 5276L are made of ductile cast iron (FCD400.)