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
Safety: EN 60 950
IP Rating: 30
Isolation: 4 kV
