Elevator Traction Machine Room is Enclosure in which the machinery and electrical controls used for an elevator are contained. The room must be fully enclosed or otherwise secured against non-authorized access.

Usually located above the hoistway in a penthouse or two floors above the highest floor it serves, but may be in the basement if overhead space is unavailable.

Within a typical machine room one will likely find the following:

Electrical Disconnects.

Machine (geared or gearless or drum type).

Machine brake.

Drive motor.

Encoder.

Motor Generator Set.

Selector.

Car Controller Cabinet.

Group Dispatcher or Common Relay Panel Cabinet.

Car Governor.

Counterweight Governor.

Rope Gripper.

Light fixtures and light control switch.

Fire alarm devices.

Hoist beam.

Power receptacles.

HVAC equipment (used to service the elevator equipment room or space).

Deflector Sheaves.

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