Explosion -proof asynchronous electric motors of the AIMM type are designed to drive stationary machines and mechanisms in explosive industries. Electric motors can be operated both in rooms and external installations, where explosive mixtures can be formed, classified as I, IIA, IIC, IIC and groups, depending on the temperature of the self-flaming T4 and T5 according to GOST 12.1.011-78.
marking of explosion protection
1EXDIIBT4, 1EXDEIIBT4, 1EXDEIIVT4/2EXDEIIICT4, 1EXDIIBT5/2EXDIICT5 according to GOST 12.2.020-76.
The main technical characteristics:
- Nominal mode of operation-S1 according to GOST 183-74.
- Electric motors allow operation in the S2, S3, S4, S6 modes according to GOST 183-74.
- Types of climatic performance: U1.5; U2.5; UHL1.5; UHL2.5; T1.5; T2.5; OM2.5.
- Electric motors work in any direction of rotation.
- The design of explosion -proof AIMM electric motors.
- The bed and bearing shields of AIMM electric motors are made of gray cast iron or steel.
marking of the explosion protection of AIMM electric motors-1EXDEIIBT4 in accordance with GOST 12.2.020-76.
- 1 - level of explosion protection;
- EX - explosion -proof;
- E, D - type of explosion protection;
- IIB - explosion protection group;
- T4-group depending on the temperature of self-flaming according to GOST 12.1.011-78.
- In explosion -proof electric motors AIMM 160
- Active parts have explosion protection D - “Explosive Personal Shell”
- Introductory devices have explosion protection E - “increased reliability against the explosion.”
degree of protection:
- Corps and boxes of conclusions - IP54;
- The casing of the external fan - IP20.
Cooling method:
- ICA 0141.
the heating resistance of the insulation of windings:
- F.
constructive performance by the method of installation according to GOST 2479-79:
- IM1081 - on paws, with two bearing shields;
- IM2081 - on paws, with two bearing shields and with a flange on a bearing shield (located on the same side with a shaft and accessible from the back, i.e. from the engine);
- IM3081 - without paws, with two bearing shields and with a flange on a bearing shield (located on the same side with a shaft and accessible from the back, i.e. from the engine);
the structure of the symbol
AIMM 160 m2 U2.5
- Aimm - designation of the series;
- 160 - the height of the axis of rotation (dimensions), mm;
- s, m, l - installation size along the length of the bed;
- a, in - the length of the stator core (the absence of the letter denotes only one core length);
- 2, 4, 6 - the number of poles;
- y, UHL, t, ohm -climatic execution according to GOST 15150-69;
- 2.5 -Placement category according to GOST 15150-69.
The price is indicated for the installation performance IM1081 (on the paws), for executions: IM2081 (paw/flange) +5%; IM3081 (flange) +5%
| Motor | |
| Power kW | 90 |
| Frequency rpm | 750 |
