SamplexPower STS-30 Owner'S Manual Download | Manualshive

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Transfer

Switch

30 Amps

STS-30

Please read this
manual BEFORE
operating your
transfer switch

Owner's

Manual

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Summary of Contents for STS-30

Page 1: ...Transfer Switch 30 Amps STS 30 Please read this manual BEFORE operating your transfer switch Owner s Manual ...

Page 2: ...DED IN ITS MANUALS OR OTHER DOCUMENTATION 2 ASSUMES NO RESPONSIBILITY OR LIABILITY FOR LOSSES DAMAGES COSTS OR EXPENSES WHETHER SPECIAL DIRECT INDIRECT CONSEQUENTIAL OR INCIDENTAL WHICH MIGHT ARISE OUT OF THE USE OF SUCH INFORMATION THE USE OF ANY SUCH INFORMATION WILL BE ENTIRELY AT THE USERS RISK Samlex America reserves the right to revise this document and to periodically make changes to the co...

Page 3: ...ing the unit to prevent personal injury or damage to the unit WARNING Connections for standby backup power to a building RV System using the Transfer Switch must be made by a qualified electrician and must comply with all applicable Electrical Codes Before starting installation disconnect all live sources of power Make sure that the Generator is off the external shore power cord is unplugged and t...

Page 4: ...erator Inverter will get damaged There is also a potential of fire 2 2 APPLICATION OF TRANSFER SWITCH IN HOMES By installing a Transfer Switch near your Main Breaker Panel and connecting a Gen erator Inverter to the Transfer Switch you can run selected circuits from your Main Breaker Panel for appliances such as a furnace well pump sump pump refrigerator television computer printer or lighting cir...

Page 5: ...nd a 30 A Transfer Switch can provide adequate power to circuits for the most common appli ances such as furnace lights refrigerator freezer microwave oven and TV If your home has a deep well pump with up to 1 HP motor a 5000 Watt Generator and 50 A Transfer Switch will be required to provide the starting capacity for the pump Larger wattage units can be selected for simultaneous starting and oper...

Page 6: ...d contact of Transfer Relay T6 Neutral N2 NC Normally closed contact of Transfer Relay T7 Input for relay coil T8 Input for relay coil SW1 DIP Switch for enabling disabling time delay for transfer to Generator OFF Enabled delay of 20 25 sec factory preset condition ON Disabled no delay LED1 Green LED On when Transfer Relay R1 is energized PCB1 Printed Circuit Board for transfer relay control Fig 3...

Page 7: ...nergized as soon as 110 VDC is fed from circuit board PCB1 to terminals T7 and T8 When the relay coil is de energized the common contact terminals T1 and T2 are connected to the Normally Closed NC contact terminals T5 and T6 respectively When the relay coil is energized the common contact terminals T1 and T2 switch over to the Normally Open NO contact terminals T3 and T4 respectively The relay coi...

Page 8: ...s overhead cabinets under floor storage compartments accessed from the vehicle exterior etc The chosen location must be accessible after installation is complete to facilitate future servicing 5 2 CABLE ENTRY AND EXITS A number of and 1 knockouts have been provided on all the sides 7 Fig 3 1 for ease of routing the input and output cables Choose a knockout that will facilitate installation and ser...

Page 9: ... the proper size nut Manually tighten nuts as tightly as possible Verify that all connections are tightened 5 5 INSTALLATION CONFIGURATIONS 5 5 1 Pre wired Configuration This Transfer Switch has been especially pre wired for ease of connections for setting up a backup power UPS Un interruptible Power Supply system with Grid Shore Power as the Primary Source and the Inverter as the Backup Source Th...

Page 10: ...OR RELAY COIL T8 INPUT FOR RELAY COIL PCB1 CIRCUIT BOARD FOR CONTROL OF RELAY R1 GROUND STUD AND NUT LED 1 GREN LED ON WHEN RELAY IS ENERGIZED SW1 TIME DELAY SWITCH ON DELAY DISABLED T5 T7 T8 T1 T2 T3 20A FUSE BLACK L FROM INVERTER BLACK L FROM GRID WHITE N FROM INVERTER GREEN GND FROM INVERTER BATTERY SIDE FUSE FOR INVERTER BATTERY SIDE FUSE FOR CHARGER AC INPUT FROM INVERTER TO NORMALLY CLOSED N...

Page 11: ...rounding studs marked Use an appropriate ring or spade lug for making this connection d Plug the NEMA5 15 plug 2 Fig 3 1 of the Inverter power cord 1 Fig 3 1 to the output of the Inverter Fig 5 3 As pointed out earlier in case the Inverter capacity is 1800 VA up to 3600 VA appropriate connection arrangement using AWG 10 3 wiring will have to be used Please ensure that the Inverter is switched OFF ...

Page 12: ...ll have to be changed as explained below ON LED1 T5 T7 T8 T1 T2 T3 20A FUSE BATTERY SIDE FUSE FOR INVERTER BATTERY SIDE FUSE FOR CHARGER INPUT FROM INVERTER TO NORMALLY OPEN NO CONTACT TERMINALS T3 T4 OUTPUT TO AC BREAKER PANEL DISCONNECT AC INPUT OF THE ON BOARD CONVERTER IN THE RV FROM THE MAIN BREAKER PANEL AND CONNECT IT TO THE NEMA5 20R AC OUTLET ON THE TRANSFER RELAY EXISITING ON BOARD CONVE...

Page 13: ...id Shore Power Cord RV A 3 4 cable clamp 4 Fig 3 1 has been provided for cable entry More 3 4 1 knock outs have also be provided for cable entry from other sides and may be used Connect the cable as follows The Black wire to the black pigtail connected to the NC Line L1 contact terminal T5 Use the twist on type of Wire Nut provided for splicing the ends The White wire to the white pigtail connecte...

Page 14: ...should be disconnected from the AC Breaker Panel Fig 5 4 This is necessary because when the panel is fed by the Inverter and if the Converter is not disconnected from the panel it will result in a battery to Inverter to Converter to battery loop that will quickly drain the batteries In case the external Battery Charger is not being used the Converter may be re wired to the NEMA5 20R Duplex recepta...

Page 15: ... to the Normally Open NO contacts T3 and T4 of the Transfer Relay If convenient use the knockout and the cable clamp provided marked Shore 4 Fig 3 1 Otherwise use any other convenient knockout with corresponding cable clamp d Use AWG 10 3 cable to connect the Load Breaker Panel to the Common Con tacts T1 and T2 of the Transfer Relay Use knockout marked Load or any other convenient knockout with ap...

Page 16: ... N TO PANEL WHITE N FROM GENERATOR RELAY R1 INPUT FROM GENERATOR TO NORMALLY OPEN NO CONTACT TERMINALS T3 T4 BLACK L WHITE N GREEN OR BARE GND SECTION 6 Troubleshooting LOW VOLTAGE Low voltage is harmful to most appliances Relay based transfer switches are also af fected by low voltage if the voltage level drops lower than the holding voltage of the coil the relay contacts will chatter Sustained c...

Page 17: ... will allow instantaneous switching Another time for disabling the delay is during diagnostic and troubleshooting efforts if disabling the delay causes the switch to work when it otherwise won t then the time delay circuit has malfunctioned and the control board PCB1 Fig 3 1 will be required to be replaced To disable the time delay the DIP Switch SW1 Fig 3 1 should be set to ON position When time ...

Page 18: ... OUTPUT CURRENT 30A BATTERY CHARGER RECEPTACLE NEMA5 20R Duplex Receptacle 20A maximum 16A continous Fused at 20A KNOCKOUTS For 1 and 3 4 MAXIMUM OPERATING TIME OF THE RELAY 25 msec DELAY TIME FOR GENERATOR WARM UP 20 sec 5 sec ENABLING DISABLING OF DELAY TIME Yes With Dip Switch SW1 Delay enabled OFF 1 This is the default factory setting Delay disabled ON OPERATING TEMPERATURE 0 40oC 32oF 104oF D...

Page 19: ...having a reasonable number of opportunities to do so Warranty service shall be performed only by the Warrantor Any attempt to remedy the defect by anyone other than the Warrantor shall render this warranty void There shall be no warranty for defects or damages caused by faulty installation or hook up abuse or misuse of the equipment including exposure to excessive heat salt or fresh water spray or...

Page 20: ...umbers Ph 1 800 561 5885 Fax 1 888 814 5210 Local Numbers Ph 604 525 3836 Fax 604 525 5221 Website www samlexamerica com USA Shipping Warehouses Kent WA Plymouth MI Canadian Shipping Warehouse Delta BC Email purchase orders to orders samlexamerica com ...

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