WEDGE-PLUG LOCK 1552266 - Caterpillar

Installation of TNS Upstream and TNS Downstream for Separate Normal AC and Bypass AC Lines from a Single Source
With Differential Circuit Breaker
The Normal and Bypass AC lines are galvanically isolated.Upstream differential protection rating must be at least 3A.
Illustration 1 g02174990
Without Differential Circuit Breaker
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TNC Upstream, TNS Downstream
The UPS internal PEN bar must be connected to the Q4S neutral upstream of Q4S.The UPS internal PEN bar must be connected to the Q5N neutral downstream of Q5N.The UPS internal PEN bar must be transformed into a PEN bar (cables supplied for TNC options).
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Installation With Upstream IT and Downstream TNS
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Single UPS with Common AC Normal and AC Bypass Inputs
The UPS installation may be equipped upstream with earth-leakage protection. This arrangement protects both the AC normal inputs and the AC bypass inputs.Upstream and Downstream for TT, TN, or IT Systems with Distributed Neutral
Illustration 5 g01945236
(14) Terminal block for the output of the load (15) Terminal block for AC bypass input (16) Terminal block for AC normal inputChange in SEA Between Upstream and Downstream or Galvanic Isolation Required
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Case 1 (14) Terminal block for the output of the load (15) Terminal block for AC bypass input (16) Terminal block for AC normal input
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Case 2 (14) Terminal block for the output of the load (15) Terminal block for AC bypass input (16) Terminal block for AC normal inputUpstream and Downstream with Undistributed Neutral
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(14) Terminal block for the output of the load (15) Terminal block for AC bypass input (16) Terminal block for AC normal inputSingle UPS System with Separate AC Normal and AC Bypass Inputs supplied by a Common Source
Upstream for TT, TN, or IT Systems with Distributed Neutral on Both Inputs and Downstream for TT, TN, or IT Systems with Distributed Neutral
Illustration 9 g01945239
(14) Terminal block for the output of the load (15) Terminal block for AC bypass input (16) Terminal block for AC normal inputChange in SEA Between Upstream and Downstream or Galvanic Isolation Required
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Case 1 (14) Terminal block for the output of the load (15) Terminal block for AC bypass input (16) Terminal block for AC normal input
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Case 2 (14) Terminal block for the output of the load (15) Terminal block for AC bypass input (16) Terminal block for AC normal inputUpstream and Downstream with Undistributed Neutral
Illustration 12 g01945243
(14) Terminal block for the output of the load (15) Terminal block for AC bypass input (16) Terminal block for AC normal inputSingle UPS with Separate AC Normal and AC Bypass Inputs that are Supplied by Separate Sources
Upstream with Distributed Neutral on one of the Inputs for TT, TN or IT systems: Downstream for TT, TN, or IT Systems with Distributed Neutral
Illustration 13 g01945244
Case 1 (14) Terminal block for the output of the load (15) Terminal block for AC bypass input (16) Terminal block for AC normal input
Illustration 14 g01945245
Case 2 (14) Terminal block for the output of the load (15) Terminal block for AC bypass input (16) Terminal block for AC normal inputChange in SEA Between Upstream and Downstream or Galvanic Isolation