Fusing Requirements; Equipment Connections - GE Reason RT430 Technical Manual

The equipment shall have all their rear connectors attached even if they are not being used, in
order to keep their levels of ingress protection as high as possible
Never manipulate liquid containers near the equipment even when it is powered off.
Avoid modification to the wiring of panel when the system is running.

4.3 Fusing Requirements

A high rupture capacity (HRC) fuse type with a maximum current rating of 10 Amps and a
minimum dc rating of 250 V dc may be used for the auxiliary supply (for example Red Spot
type NIT or TIA). Alternatively a miniature circuit breaker (MCB) of type C, 10A rating,
compliant with IEC 60947-2 may be used.
Reason devices contain an internal fuse for the power supply which is only accessed by
opening the product. This does not remove the requirement for external fusing or use of an
MCB as previously mentioned. The ratings of the internal fuses are:
RT430 unit: 2 Amp, type T, 250V rating

4.4 Equipment Connections

Terminals exposed during installation, commissioning and maintenance
may present a hazardous voltage unless the equipment is electrically
isolated.
Tighten M3 clamping screws of heavy duty terminal block connectors to a nominal torque of
1.0 Nm.
Tighten captive screws of header-type (Euro) terminal blocks to 0.5 Nm minimum and 0.6 Nm
maximum.
Always use insulated crimp terminations for voltage and current connections.
Always use the correct crimp terminal and tool according to the wire size.
In order to maintain the equipment's requirements for protection against electric shock, other
devices connected to the RT430 shall have protective class equal or superior to Class I.
RT430-TM-EN-5
RT430
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