Micromod RetroPAK: SLC Installation Manual - Manual (Page 48)

SLC RetroPAK Controller
POWER, GROUNDING, AND BUILT-IN I/O CONNECTIONS
24
3.3 POWER CONNECTIONS
∆ WARNING
Avoid electrical shock. AC power wiring must not be connected at the
distribution panel (ac source) until all wiring procedures are completed.
All power wiring must be in compliance with the requirements of the National Electrical Code
or Canadian Electrical Code. In any installation where the power source does not have one
side of the line connected as a neutral conductor, both sides of the line must be overcurrent
protected.
The controller does not contain a power disconnect switch. Install a disconnect switch or
circuit breaker between the controller and its power source. Choose an accessible location
as near to the controller as practical, and identify the switch or breaker as the disconnecting
device for the controller.
The ac power connections are made to the power terminals shown in Figure 3-1 Route
power cable from the bottom right hand side of the housing.
Power specifications for the controller are:
Power Supply Input:
Instrument Power Code 1: 85 to 250 V rms, 50 to 400 Hz
Instrument Power Code 0: 20 to 50 Vdc
Power Consumption (120V rms, 60 Hz): 50 VA maximum
Transient Overvoltages: Classified as Installation (Overvoltage) Category II
per IEC 664 ( Specfies a maxiumum impulse withstand voltage of 1500 V for phase to
earth voltage of 150 Vrms)
Interruption: No effect from 2 cycle dropout at 120V rms, 60 Hz.
Interference: No permanent effect from exposure to IEC 801-4 fast transients
level 3, or IEC 801-5 surges level 3.
Internal Fuse:
DC Version: 4 amps, 250 V Slow Blow, soldered in
AC Version: 2.5 amps, 250 V Slow Blow, soldered in
External switch or circuit breaker rating:
DC Version: 3 amps, 28 VDC
AC Version: 1 amps, 250 VAC