Hoyer

Hoyer Three-phase explosion proof e-motors for chemical applications

Hoyer EX e-motors are designed to equipment installed in rooms and areas (zone 1 or 2), in which explosive mixtures of combustible gas and vapour with air, classified as group II, temperature class T5 or lower (maximum surface temperature below 100°C), may appear. Motors fulfill below mentioned standard requirements:
 PN-EN 60034-1 and PN-EN 60079-0, PN-EN 60079-1, PN-EN 60079-7.

Catalogue version

• Operating duty S1
• Rated voltage 400V
• Frequency 50Hz
• Insulation class F
• Degree of protection IP55
• Ambient temperature -20°C to +40°C
• Mounting arrangement IM1001 /IMB3/ (on feet)
• Terminal box on with one cable inlet
• 6 supply terminals

Optional versions

• Rated voltage up to 1000V
• Frequency 60Hz
• Insulation class H
• Ambient temperature -20°C to +40°C
• Degree of protection IP66
• Other mounting arrangements
• Thermal protection of winding Pt100, bimetallic
• Thermal protection of bearings PTC, Pt100,bimetallic
• Adapted for frequency converter supply ('-f' execution)
• With external cooling ('-v' execution)
• For extra low temperatures up to -35°C ('-ELT' execution)Other non
• catalogue executions according to the customer’s requirements

Correct cooperation of explosion proof motors (in execution '-f') with frequency converters has been found during the laboratory tests, in which following types of frequency converters were used:

• DANFOSS series Automation Drive FC300, Aqua Drive FC200, HVAC Drive FC100, VLT 5000 & 6000
• SIEMENS series Simovert Masterdrives and Sinamics G120, G150
• VACON series NX

With the above mentioned frequency converters can be found in the e-motors documentation (manual instruction).
In case of ordering e-motors for the variable frequency drives, please always provide detailed information regarding frequency converter (manufacturer, type, etc.) in order to select the e-motor correctly. 

Hoyer Three-phase explosion-proof e-motors size 315 (group IIC) for chemical applications

The e-motors are designed for use in equipment installed in rooms and areas (zone 1 or 2), where explosive mixtures of combustible gas and vapour with air, classified as group II, temperature cat. T5 or lower, may appear. They ensure high safety standards and are classified to cat. 2G acc. to 94/9/WE Directive (ATEX).

Catalogue version

• Operating duty S1
• Rated voltage 380V-50Hz or 400V-50H
• Ambient temperature -20° to +40°C
• Insulation class F (315...A,B) lub H (315...C,D)
• Starting method: D/Y, softstart, DOL
• Thermal protection PTC of windings and bearings
• With Pt100 sensors built into the winding
• Degree of protection IP55
• With lubricated bearings
• With two terminal boxes (main and additional) - both mounted on the top;
• Main terminal box equipped with 6 main terminals and two cable inlets
• Additional terminal box equipped with 6 additional terminals and one cable inlet

Optional versions

• Rated voltage up to 800V, 50Hz or 60Hz
• Insulation class H (315...A,B)
• Ambient temperature from -20° to +60°C
• Degree of protection IP66
• With winding heaters
• Thermal protection of winding and bearings - bimetallic sensors
• Thermal protection of bearings - Pt100
• With encoder
• With other rubber seal diameter /in cable inlets/
• With special cable inlets (for screened cables)
• Adapted for frequency converter supply
• Other non catalogue versions according to the customer’s requirements

Hoyer Three-phase explosion-proof e-motors for mining industry

Our general purpose flameproof motors are designed for operation in mines endangered by the explosion of the methane and coal dust in the spaces (zones one and two) where explosive mixtures of combustible gases and steams of liquid with air can occur. E-motors comply with the requirements of the EN 60034-1, EN 60079-0 i EN 60079-1 standards for group I i IIA and PN-G-38010:1997 (at 1000V). These e-motors belong to the category M2, 2G according to the Directive 94/9/WE (ATEX).

Catalogue version

• Operating duty S1
• Rated voltage 500V or 1000V
• Frequency 50Hz
• Insulation class F
• Degree of protection IP55
• Ambient temperature -20°C to +40°C
• Thermal protection of windings and bearings
• Mounting arrangement IM1001 /IMB3/ (on feet)
• Terminal box on the top with 1 cable inlet
• 3 supply terminals

Optional Versions

• Rated voltage up to 1140V
• Frequency 60Hz
• Switchable voltage 500/1000V
• Insulation class H
• Degree of protection IP56
• Other mounting arrangements
• Thermal protection of winding Pt100
• Thermal protection of bearings PTC, Pt100
• Adapted for frequenct converter supply ('-f'execution)
• With GOST certificate
• Other non catalogue versions according to the customer’s requirements

Hoyer Three-phase squirrel cage e-motors with flameproof enclosure for belt-drives - 3SGf a.k.a. flameproof motors (EXD motors)

3SGf e-motors are designed for operation in the mines endangered by the explosion of methane and coal dust for driving of mining devices (e.g. impactors, conveyors). They comply with requirements of the EN 60034-1, EN 60079-0 i EN 60079-1 standards for group I and PN-G-38010:1997 standard (for 1000V). These e-motors belong to the category M2, 2G according to the Directive 94/9/WE (ATEX).

Catalogue version

• Operating duty S1
• Rated voltage 500V or 1000V
• Frequency 50Hz
• Insulation class F or H
• Degree of protection IP55
• Ambient temperature -20°C to +40°C
• Thermal protection of windings and bearings
• Mounting arrangement IM2001 /IMB35/ (on feet with flange)
• Terminal box on the top with one cable inlet
• 3 supply terminals

Optional versions

• Rated voltage up to 1140V
• Frequency 60Hz
• Switchable voltage 500/1000V
• Insulation class H
• Degree of protection IP56
• Thermal protection of winding Pt100
• Thermal protection of bearings PTC, Pt100
• With GOST certificate
• Other non catalogue versions according to the customer’s requirements

Hoyer Three-phase squirrel cage e-motors with flameproof enclosure for belt-drives – STG a.k.a. flameproof motors (EXD motors)

ST(K,L)G e-motors are designed for driving of mining devices (e.g. impactors, conveyors).
They comply with requirements of the EN 60034-1, EN 60079-0 and EN 60079-1 standards for
group I and PN-G-38010:1997 (standard for 1000V). E-motors are designed for operation in the mines endangered by the explosion of methane and coal dust. They belong to the category M2 according to the Directive 94/9/CE (ATEX).

Catalogue version

• Operating duty S1 and S4 60% 40c/h Jm/Jext=1
• Rated voltage 1000V
• Frequency 50Hz
• Insulation class H
• Degree of protection IP66
• Ambient temperature -20°C to +40°C
• Thermal protection of windings and bearings - bimetalic sensors
• With Pt100 sensors built into windings and end shields
• Mounting arrangement IM1001, IM2001, IM3001
• Terminal box on the top with 3 terminals and with 2 cable inlets

Optional versions

• Rated voltage up to 1140V
• Frequency 60Hz
• Thermal protection PTC
• With other rubber seal diameter /in cable inlets/
• Terminal box equipped with CK2
• Other non catalogue versions according to the customer’s requirements

For more information please download the Hoyer Explosion Proof Motors.