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Eaton 93PM UPS 480V Three-Wire – 100 kW Frame Installation and Operation Manual 164000227—Rev 07
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Use twisted-pair wires for each input and return or common.
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All interface wiring and conduit is to be supplied by the customer.
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When installing external interface wiring between a building alarm, relay output, battery breaker trip, or
Minislot and the UPS interface terminals, conduit must be installed between each device and the UPS
cabinet.
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If using conduit, install the interface wiring in separate conduit from the power wiring.
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All building alarm inputs require an isolated normally-open contact or switch (rated at 24 Vdc, 20 mA
minimum) connected between the alarm input and common terminal. All control wiring and switch
contacts are customer-supplied.
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LAN and telephone drops for use with Minislot connectivity cards must be supplied by the customer.
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The UPS battery detect signal wiring from a UPS building alarm must be connected to the battery
disconnect device.
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Program the battery detect building alarm to read battery open and for normally open contacts.
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A supplemental 48 Vdc shunt trip signal for the battery disconnect device is provided, but is not required
for normal operation.
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Battery detect and 48 Vdc shunt trip wiring should be a minimum of 18 AWG.
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The REPO feature opens all switchgear in the UPS cabinet and isolates power from your critical load. Local
electrical codes may also require tripping upstream protective devices to the UPS.
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The REPO switch must be a latching-type switch not tied to any other circuits.
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A jumper wire must be connected between pins 3 and 4 on the REPO terminal block if using a normally-
closed REPO switch.
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REPO wiring should be a minimum of 18 AWG and a maximum of 16 AWG.
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The REPO switch wiring must be in accordance with NEC Article 725 Class 2 requirements.
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The maximum distance between the REPO and the UPS cannot exceed 150m (500 ft).
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Alarm relay contacts have a maximum current rating of 5A and a switched voltage rating of 30 Vac or 28
Vdc.
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Alarm relay wiring should be a minimum of 18 AWG (recommended 18 AWG).
Summary of Contents for 93PM Series
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