Bộ DIMMER Helvar - HES92220 2 × 10 A Transistor Dimmer

HES92220 Transistor Dimmer


The Imagine HES92220 rack mounted dimmer contains two identical trailing edge transistor dimmers within a moulded case and is designed as an exchangeable module for fitting into ESR dimmer cabinets. The dimmer is for use with incandescent lamps and low voltage lamps via electronic transformers, if the transformer manufacturer approves use. With convection

cooling the maximum load is 6 A per channel and increases to 20 A per channel when fan cooled. The dimmer is provided with a three-digit LED display, normally indicating the current output level as a percentage and four push buttons for manual operation and address setting.


Key Features

Full dimmer status feedback via SDIM control bus permitting full system monitoring. Current and temperature monitoring with automatic load reduction in critical states and shut-off under extreme conditions. Override input for a switching contact to allow the channels to be set to

a pre-programmed level inconjunction with lighting router only.


Installation Notes

The dimmer module is specifically designed to be fitted into the ESR dimmer rack stacker unit.

Analogue control output connection (if used) are via a connector on the right hand side of the module. Power connections are made using terminal screws under the terminal cover on the left-hand side of the front of the dimmer. All other connections are made at the rear of the dimmer unit via a plug-in connector.


Technical Data

Electrical Input

Mains: 180 - 260 V AC, 45 - 65 Hz

(90 - 130 V AC to order)

Power Consumption: 6 W at zero output

40 W both dimmers loaded to 6 A

130 W both dimmers loaded to 20 A

Electrical Output

Maximum Output: Input voltage less 3 V at input frequency

Maximum Current: 6 A Each dimmer, convection cooled

12 A Paired dimmers, convection cooled

20 A Each dimmer, forced ventilation

40 A Paired dimmers, forced ventilation



Control Inputs/Outputs

Digital: RS485 S-DIM protocol (Level and fade time)

Analogue: 0…+10 V (Level)

Operating Conditions

Ambient Temperature: 0…+40º C

Auto Cutback: 70º C internal temperature

Auto Shutdown: 90º C internal temperature

Relative Humidity: 90% max, non-condensing

Storage Temperature: -10°C…+70°C

Mechanical Data

Case: ABS polycarbonate blend two-part moulding,

130°C Vicat UL94-V0 (Halogen Free)

Conformity & Standards

Emission: EN 50 081

Immunity: EN 50 082

RFI: EN 55 014


Safety: EN 60 950

IP Rating: 30

Isolation: 4 kV


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