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Explosion-protected Motors
Maximum Safety with High Efficiency
In hazardous environments,
such as in chemical plants,
the oil industry or in gas works,
motors have to comply with the strictest
safety standards for the protection of life,
machines and the environment.
With the explosion-protected motors
from MEZ you are going further than the
basic safety requirements: our rugged EEx motors
operate completely reliably even under
the most extreme conditions - and this has been
proven worldwide a hundred thousand times over.
And what is more, there are no gaps in our
EEx motor range, they meet all requirements
with maximum safety and high efficiency during operation
Explosion-protected Motors - Technical Overview
| Motors |
Type of protection
"e" |
Type of protection
"d" |
Type of protection
"n" |
Dust explosion-proof |
| Frame Size |
63M to 315L |
71M to 450 |
63M to 450 |
56M to 450 |
| Output range |
0.12 kW to 165 kW |
0.25 kW to 950 kW |
0.09 kW to 1000 kW |
0.06 kW to 1000 kW |
| Number of Poles |
2/4/6 |
2/4/6/8 |
2/4/6/8 |
2/4/6/8 |
| Temperature Class |
T1 - T3 |
T1 - T4 |
T3 |
- |
| Type of Protection |
II 2 G EEx e II acc. to IEC/EN 60079-0, IEC/EN 60079-7 |
II 2 G EEx e II acc. to IEC/EN 60079-0, IEC/EN 60079-7 |
Ex nA II 3G EEx nA acc. to IEC/EN 60079-15 |
Zone 21: II 2D IP 65 T 125 °C Zone 22: II 3D IP 55 T 125 °C acc. to EN 50281/ IEC 61241 |
| Guideline |
94/9/EG, ATEX 95 |
| Degree of Protection |
IP 55 |
IP 55 |
IP 55 |
Zone 21: IP 65 Zone 22: IP 55 |
| Voltages |
All commonly used voltages |
| Frequency |
50 Hz and 60 Hz |
| Construction Type |
All common construction types |
| Housing |
FS 63M ... 160L
aluminium
FS 100L ... 315L
cast iron |
Cast iron |
FS 63M ... 160L
aluminium
FS 100L ... 450
cast iron |
FS 56M ... 225M
aluminium
FS 100L ... 450
cast iron
(Zone 21 only up to FS 315L) |
| Cooling Type |
Surface air cooling |
| Temperature Class |
F used as B |
| Isolation Type |
DURIGNIT® IR 2000 |
DURIGNIT® IR 2000,
inverter-compatible
up to 500 V,
690 V on request |
| Type Spectrum |
Quality Tested |
- "Increased safety" degree of protection - "e" (EEx e II)
- Explosion-proof enclosure - "d" (EEx de IIC)
- Non sparking - "n" (EEx nA, Ex nA)
- Dust explosion-proof
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All explosion-protected motors
from MEZ have been tested by
the German Federal Institute of
Science and Technology (PTB) or
by the German Coal and Steel
Technology Co. (DMT).
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