Individual Ground Fault Protection; Control Power Transformer; Customer Connection Terminal Block - Spectrum RRSHA3 Series User Manual

ENM-3600-00
The heating circuit(s) and rod/crib circuit are
each protected by its own circuit breaker. If
the components on a circuit are drawing too
much current, only the breaker on that circuit
trips, allowing the other circuit to continue
operation.
By default, the circuit breaker for the optional
rod/crib circuit is set to the tripped position.
If no optional equipment requiring power is
installed with the RRSHA Hot Air Blower, the
rod/crib circuit can remain in the tripped
position without affecting the unit's blower
circuit. If optional equipment requiring power
is later added, the circuit breaker on the
rod/crib circuit must be reset.
1.2.3.2

Individual Ground Fault Protection

(Model RRSHA5 with Suffix "R" only)
Fig. 9
Ground Fault Sensor
A ground fault sensor protects the rod/crib
circuit on the Circuit Panel. If a ground fault is
detected on this circuit, the sensing relay trips
and illuminates its associated fault indication
light. The fault relay can be monitored
remotely or connected to an optional external
indication light.
The sensitivity (number of milliamps required
to trip the sensor) of either ground fault
sensor can be adjusted. See
Sensitivity on page 27 for more information.
3.3 Adjusting GFI
RRSHA Series Hot Air Blower User Manual
1.2.3.3

Control Power Transformer

Fig. 10
Control Power Transformer
A transformer connected to the main power
distribution block provides 120VAC power to
the Circuit Panel's electrical components. The
transformer is protected with fuses on the
high and low voltage sides.
1.2.3.4

Customer Connection Terminal Block

Fig. 11
Customer Connection Terminal Block
The terminal block TB2- has six poles and
provides connection points for optional
equipment and accessories, as well as remote
control and monitoring capabilities for the
RRSHA Hot Air Blower
TB2- (pole 1 to pole 2):
Continuity indicates Heater On.
TB2- (pole 3 to pole 4):
For a Remote Heater On Switch
TB2- (pole 5 to pole 6):
Continuity indicates a Fault if Heater is On.
9