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The performance of all brakes, in terms of Watt, Nm and time in Sec are shown in table given below

  ATDC AT24 ATDC AT24
EC Type Static max braking torque [Nm] Braking time no-load [Sec] Input voltage on rectifier [Vac] Input voltage to brake [Vdc] Brake power W Static max braking torque [Nm] Static min braking torque [Nm] Braking time no-load [Sec] Brake power W Extra Kg on Std
AT..63 4,5 0,15 240 104 22 7,0 4,5 0,06 20 +4
AT..71 8,0 0,15 240 104 28 7,0 4,5 0,06 20 +5
AT..80 12,5 0,20 240 104 30 14,0 9,5 0,09 25 +5,5
AT..90 25,0 0,25 240 104 45 24,0 12,0 0,11 30 +6
AT..100 38,0 0,30 240 104 60 60,0 28,0 0,14 45 +7
AT..112 70,0 0,35 415 180 65 80,0 60,0 0,15 65 +10
AT..132 140,0 0,40 415 180 88 120,0 110,0 0,16 85 +12
AT..160 210,0 0,50 415 180 110 160,0 130,0 0,21 105 +22


Delhi AT24 series motors use DC electromagnetic brakes with 24V DC input type which can be operated through an inverter (usually having 24Vdc port.)

Brake coil insulation class H & brake lining is asbestos – free.

The rectifier is MOSFET type, with protection varistors at the entry and exit. All brake assemblies are protected against corrosion by painting or hot galvanizing and resin impregnated winding. The parts most subject to wear are treated in special atmospheres that provided considerable wear resistance to the parts.

Delphi ATAC series self-braking motors use brake similar in working with DC electromagnetic type but operated on AC power supply. As these brakes are operated on AC supply, no need rectifier.

The torque value offered for ATAC series motors are as under.

Type Static Braking Torque Nm Input Power W Input Voltage to brake Vac Extra Kg on std.
ATAC63 4,5 40 415 4,2
ATAC71 8 70 415 5,2
ATAC80 12 85 415 5,8
ATAC90 16 120 415 6,3
ATAC100 45 160 415 7,4
ATAC112 70 300 415 10,6
ATAC132 140 500 415 13

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DELPHI AT

home | motors – DELPHI AT self braking motors

Rotomotive offers Delphi ATDC (DC Brakes), AT24 ( 24V DC Brakes) and ATAC (AC Brakes). These are of electromagnetic type and normally OFF i.e. the braking action occurs in the absence of power supply. The brake insulation class is F. The brake lining is asbestos free as per most recent EEC Directives pertaining to Workplace Hygiene and Safety.

All brake assemblies are protected against corrosion by painting or heat galvanizing and resined winding. The parts most subjected to war are specially treated to ensure they become wear resistance.

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