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2.0 Scope
This section guides the User through installation requirements, circuit wiring diagrams, hardwired connections, and
factory input/output configurations for the Topaz 100.
WARNING: High voltage, only qualified electricians should install or
perform maintenance.
2.1 Installation Notes
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The Topaz 100 requires ventilation and should not be mounted in a non-ventilated control cabinet.
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After installation is complete, verify the output voltage is within its rated specifications.
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If the Topaz 100 Ultra-Isolator is overloaded, the output voltage will drop below its rated specifications and
the input fusing will clear.
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For installation of conduit, reference NEC Article 348 and 350 and any applicable local electrical codes.
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Topaz 100 transformer outputs should not be paralleled.
Refer to Figures 2-1, 2-2, page 2-3, and Figure 2-3, 2-4 page 2-4, for typical wiring diagrams of electrical hookup.
2.2 Installation of Hardwired Models
The Topaz 100 Ultra-Isolator is shipped from the factory configured for an input and output of 120VAC, except for
5kVA and 7.5kVA models provided with an input of 240/480VAC, which will be configured for an input of 480VAC
and an output of 120VAC.
2.2.1 Changing the Input or Output Voltage
Changing from an input of 120VAC to an input of 240VAC, on models rated at 1000VA and below, requires that the
input fuse be changed as indicated. A fuse rated at 240VAC and the correct amperage has been provided with the
Topaz 100.
Table 2-1: Terminal Block Wire Range and Torque Specifications.
Rating Wire Range Tightening Torque
125VA - 1000VA #20 - #10 AWG 7.0 LB-IN.
1800VA - 7500VA #18 - #6 AWG 17.7 LB-IN.
1. Reconfiguring the Topaz 100 for a different input or output voltage must take place prior to connecting (wiring)
the input power source and output (load) conductors. Voltage must not be present at the Topaz 100 unit.
2. Verify that the input source voltage is compatible with the input jumper configuration. If not, change input jumper
configuration accordingly.
3. Note – Changing from an input of 120VAC to an input of 240VAC, on hardwired models rated at 1000VA and
below, requires that the input fuse be changed as indicated. A fuse rated at 240VAC and the correct amperage
has been provided with the Topaz 100 and is located inside the enclosure, labeled “240VAC fuse”.
Installation and User Manual
Installation
Installation
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