3.0 Installation of stand-alone RELIANCE IL Masters
3.1 Installation in the Control Cabinet
Note
The RELIANCE IL Master is designed for protection class IP 20 (NEMA 1) according to IEC 529 and is approved for
contamination grade 1 according to IEC 60 664-1 (operation in dry air-conditioned spaces).
The environmental conditions are defined in
The airflow is from front to back through the RELIANCE IL Master units to ensure enough ample room behind the units for
proper cooling and air flow.
The devices should be mounted on rails, brackets or tilting racks. They are to be fixed with the 4 clamp bolts positioned on
the front.
The ground cables of the RELIANCE IL Masters must be connected to the bus bar in the electrical cabinet.
The control cabinet bus bar must be connected by a wire with a minimum cross-sectional area of AWG 0 (50mm2) to the
central earth ground in the control room.
3.1.1 Power Supply
The power cable (18 AWG (0.75mm2) recommended) is to be provided by the user. The plug supplied is to be attached to the
cable. The cable is used to connect the mains socket POWER at the rear of the RELIANCE IL Master to the cabinet power
supply.
Each RELIANCE IL Master must be individually fused with a 10 A circuit breaker.
For the location of the power socket: refer to
3.1.2 Connection to the Series Circuit
The high-voltage connections “FIELD” and “CCR” (Constant Current Regulator) on the RELIANCE IL Master are each pre-
prepared with cables with a length of 19-in (0.5m), in accordance with the FAA L-824 specification.
The plugs on the built-in cables “CCR” are connected to the sockets on the extension cables going to the CCR. The latter have
to be separated in the middle beforehand. The extension cables must be shortened to the appropriate length and mounted
on the cabinet terminal strip. From there the connection to the CCR is made.
The connections from the control cabinet to the CCR are to be established on site.
The sockets on the built-in cables “FIELD” are connected with the plugs on the extension cables. The free ends of these
extension cables are to be shortened to the appropriate length and mounted on the cabinet terminal strip. From there the
connection is established to the series circuit cables, which lead to the airfield.
For the location of the series circuit connectors: refer to
.
3.1.3 Over-voltage Protection
When installed on a CCR of 30kW CCR, the CCR contactor wiring shall be run through the RELIANCE IL over-voltage contactor.
.
96A0480, Rev. B, 2019/12/06
19
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