APC 10-40KW 400V UPS manual System Specifications, Warranty, Appendix, How to Contact APC

6.1.3	Operating The External Service Bypass Switch	57
6.2	Service Bypass Panel for Parallel Redundant Operation	59
6.2.1	Two Parallel Systems with Service Bypass Panel	60

6.2.2Parallel/Redundant Operation with Service Bypass Panel and External Battery

	via MCCB	61
6.2.3	Operating External Service Bypass Switch for Parallel Systems	62
6.2.4	Isolating One UPS for Service/Maintenance	66
6.2.5	Switching Back to Normal Parallel/Redundant Operation	67
6.3	Intersystem Synchronization Unit	68
6.4	Relay Board	69
6.4.1	Relay Board/Relay Functions	70
6.5	Weight Equalizer	72
6.6	Remote Display	74
6.6.1	Extension of Remote Display Communication Distance	74
6.6.2	Remote Display Installation	76
6.6.3	Remote Display Use	77
6.7	Isolation Transformer	78
6.7.1	Connecting Isolation Transformer	79
6.7.2	Wiring up UPS with External Yyn0 Isolation Transformer at Output	81
6.7.3	Wiring up UPS with External Yyn0 Isolation Transformer at Input	82
6.7.4	Wiring up UPS with External Optional Dzn0 Isolation Transformer at Input	83
6.7.5	Wiring up UPS with External Optional Dzn0 Isolation Transformer at Output	84
6.7.6	Wiring up UPS with External Optional Dyn11 Isolation Transformer at Input	85

7.0	System Specifications	86
7.1	Technical Data	86
7.2	Back-up Time / Dimensions / Weigh	86
8.0	Warranty	87
8.1	APC Silcon Series Limited Factory Warranty	87
9.0	Appendix	88
9.1	Table 1. Installation Planning Data	88
10.0	How to Contact APC	90

990-4050

4 Installation Guide APC Silcon 10-40kW 400V UPS