SINGLE PHASE WIRING FOR ASCO SERIES G386 NON-AUTOMATIC TRANSFER SWITCHES RATED 1600-3000 AMPERES WITH GROUP 1 CONTROLS
General Notes and Specifications
This document provides wiring diagrams and technical details for ASCO Series G386 non-automatic transfer switches, rated for 1600-3000 Amperes, equipped with Group 1 controls.
General Notes:
- Refer to "Explanation of Catalog Number Codes" in the catalog number chart on Sheet 1 for optional neutral types.
- Switching contacts are overlapping.
- Solid bus plate construction.
- Warning: TS shown closed on NORMAL source.
- Warning: Solenoid operation occurs after passing through top dead center position.
Optional Accessories:
- Refer to specific optional accessory descriptions and wiring details provided in the diagrams.
Main Power Poles
This section details the wiring for the main power poles connecting the Normal and Emergency sources to the Load.
Normal Source Connections:
- NL1, NL2, NLO (Normal Line 1, Line 2, Neutral)
Emergency Source Connections:
- EL1, EL2, ELO (Emergency Line 1, Line 2, Neutral)
Load Connections:
- LL1, LL2, LLO (Load Line 1, Line 2, Neutral)
Diagrams illustrate the physical layout and terminal connections for these power poles.
TS Operator Circuit
This section describes the electrical circuit for the transfer switch (TS) operator, which controls the movement between Normal and Emergency power sources.
Key components include:
- Solenoid Assembly: Controls the physical switching action.
- Coils: Energize the solenoids for operation.
- Control Relays (CR1, CR2): Used within the operator logic.
- TS Contacts: Indicate the position of the transfer switch (e.g., MUS - Manual/Unusual, AUX1 - Auxiliary).
- Terminals: Labeled for specific connections (e.g., TS-1, TS-2, TS-4, TS-5, TS-6, TS-7, TS-8, TS-9, TS-10, TS-11, TS-12, TS(MUS)-13, TS(MUS)-14, TS(MUS)-15, TS(MUS)-16, TS(MUS)-17, TS(MUS)-18, TS(MUS)-19, TS(MUS)-20, TS(AUX1)-21, TS(AUX1)-22, TS(AUX1)-23, TS(AUX1)-24, TS(AUX1)-25, TS(AUX1)-27, TS(AUX1)-28, TS(AUX1)-29, TS(AUX1)-30, TS(AUX1)-31, TS(AUX1)-32).
- Connectors: P1, P2, J1, J2, J3, J11, J12, J13, J14, PL1, PL2, PL3, PL4, SS, TGL.
The circuit shows how the operator is energized to move the switch to the Emergency position (EMER) or Normal position (NORM).
Control Panel (CP) Wiring
This section details the wiring connections to the Control Panel (CP), which houses the operator controls and indicators.
Control Signals & Indication:
- Signals: Connections for controlling the transfer switch operation (e.g., from sensing circuits).
- Indication: Connections for pilot lights and indicators showing the status of the transfer switch and power sources.
Operator Controls & Indicators (Inside Panel):
- PL1: TS Connected to Normal (Green)
- PL2: TS Connected to Emergency (Red)
- PL3: Normal Source Accepted (Green)
- PL4: Emergency Source Accepted (Red)
- SS: Transfer to Normal or Emergency (Selector Switch)
- TGL: ACC. 43M (Toggle Switch, possibly for manual operation or accessory control)
The diagrams show connections from the main transfer switch unit to the control panel via various harnesses and connectors (e.g., P11, P12, J11, J12, P13, J13).
Wiring Harness and Terminal Block Details
Detailed tables list wire connections for different harnesses and terminal blocks.
Wire Harness 605454 (Main TS to CP):
| Wire No. (P, P1, P2, J3) | MAIN TS Connection | CLR AWG | Wire No. | TS(AUX1) Connection | CLR AWG |
|---|---|---|---|---|---|
| 1 | P-2,TS-1 | 16 | 31 | TS(AUX1)-27,TB-4 | 16 |
| 2 | P-3,P1-14 | 16 | 32 | TS(AUX1)-28,TB-5 | 16 |
| 3 | P-4,TS-3 | 16 | 33 | TS(AUX1)-29,TB-6 | 16 |
| 4 | P-5,TS-5 | 16 | 34 | TS(AUX1)-30,TB-7 | 16 |
| 5 | P-6,TS-7 | 16 | 35 | TS(AUX1)-31,TB-8 | 16 |
| 6 | P-8,TS(AUX1)-24 | 16 | 36 | TS(AUX1)-32,TB-9 | 16 |
| 7 | P-9,TS(AUX1)-25 | 16 | 37 | TS(AUX1)-33,TB-10 | 16 |
| 8 | P-10,TS(AUX1)-21 | 16 | 38 | TS(AUX1)-34,TB-11 | 16 |
| 9 | P-11,TS-2 | 16 | 39 | TS(AUX1)-35,TB-12 | 16 |
| 10 | P-12,TS-1 | 16 | 40 | TS(AUX1)-36,TB-13 | 16 |
| 11 | P-13,TS(AUX1)-22 | 16 | 41 | TS(AUX1)-37,TB-14 | 16 |
| 12 | P-14,TS(AUX1)-23 | 16 | 42 | TS(AUX1)-38,TB-15 | 16 |
| 13 | P-16,P1-16 | 16 | 43 | TS(AUX1)-39,TB-16 | 16 |
| 14 | P-17,J3-3 | 16 | 44 | TS(AUX1)-40,TB-17 | 16 |
| 15 | P-18,TS-6 | 16 | 45 | TS(AUX1)-41,TB-18 | 16 |
| 16 | P-19,TS-9 | 16 | 46 | TS(AUX1)-42,TB-19 | 16 |
| 17 | P-20,TS-10 | 16 | 47 | TS(AUX1)-43,TB-20 | 16 |
| 18 | P-21,TS-11 | 16 | 48 | TS(AUX1)-44,TB-21 | 16 |
| 19 | P-22,TS-4 | 16 | 49 | TS(AUX1)-45,TB-22 | 16 |
| 20 | P-23,TS-8 | 16 | 50 | TS(AUX1)-46,TB-23 | 16 |
| 21 | P-24,TS-12 | 16 | 51 | TS(AUX1)-47,TB-24 | 16 |
| 22 | P1-5,TS(MUS)-17 | 16 | 52 | TS(MUS)-17,TS(MUS)-15 | 16 |
| 23 | P1-6,TS(MUS)-19 | 16 | 53 | TS(MUS)-19,TS (MUS)-13 | 16 |
| 24 | P1-9,P2-4 | 16 | 54 | TS(MUS)-21,TS(MUS)-16 | 16 |
| 25 | P1-10,P2-1 | 16 | 55 | TS(MUS)-23,TS(MUS)-14 | 16 |
| 26 | P1-11,P2-2 | 16 | 56 | TS(MUS)-25,TS(MUS)-18 | 16 |
| 27 | P1-12,P2-3 | 16 | 57 | TS(MUS)-27,TS(MUS)-20 | 16 |
| 28 | P1-13,TS(MUS)-16 | 16 | 58 | TS(MUS)-29,TS(MUS)-17 | 16 |
| 29 | P1-15,TS(MUS)-20 | 16 | 59 | TS(MUS)-31,TS(MUS)-19 | 16 |
Wire Harness 483763 (TS-CP Harness):
| Wire No. (J, P11, P12) | TS-CP HARNESS Connection | CLR AWG |
|---|---|---|
| 170 | J-1,P11-8 | 16 |
| 171 | J-2,P11-15 | 16 |
| 172 | J-3,P11-2 | 16 |
| 173 | J-4.P11-4 | 16 |
| 174 | J-5.P11-17 | 16 |
| 175 | J-6,P11-12 | 16 |
| 176 | J-7,P11-7 | 16 |
| 177 | J-8,P12-2 | 16 |
| 178 | J-9,P12-3 | 16 |
| 179 | J-10,P12-8 | 16 |
| 180 | J-11,P11-10 | 16 |
| 181 | J-12.P11-1 | 16 |
| 182 | J-13,P12-9 | 16 |
| 183 | J-14,P12-10 | 16 |
| 184 | J-15,P11-5 | 16 |
| 185 | J-16,P11-13 | 16 |
| 186 | J-17,P12-1 | 16 |
Wire Harness 619510-037 (Door Controls & Indicators):
| Wire No. (P3) | DOOR CONTROLS & INDICATORS Connection | CLR AWG |
|---|---|---|
| 140 | P13-5,PL1(-) | 22 |
| 141 | P13-8,PL1(+) | 22 |
| 142 | P13-6,PL2(-) | 22 |
| 143 | P13-7,PL2(+) | 22 |
| 144 | P13-9,PL3(-) | 22 |
| 145 | P13-10,PL4(-) | 22 |
| 146 | P13-11,PL3(+) | 22 |
| 147 | CP-6,SS-13 | 22 |
| 148 | CP-10,SS-23 | 22 |
| 149 | CP-7,SS-14 | 22 |
Terminal Block (TB) Connections:
Terminal blocks are used for various connections, including auxiliary contacts and optional accessories. Specific terminal numbers (e.g., TB-4 to TB-24) are referenced in the harness tables.
Auxiliary Contacts (TS AUX1):
These contacts provide status feedback from the transfer switch. Connections are detailed in the wiring harness tables.
Physical Diagram and Enclosure Layout
This section describes the physical arrangement of components within the transfer switch enclosure and the control panel.
Enclosure Components:
- TS (Transfer Switch) unit
- Solenoid Assembly
- Auxiliary Contacts
- Terminal Blocks (TB)
- Connectors (J1, J2, P1, P2)
- Bonding Strap (PN 098323-019)
Control Panel (Group 1 Control Panel):
- Operator Controls: Selector switches (SS), toggle switches (TGL), and indicator lights (PL1-PL4).
- Connectors: P11, J11, P12, J12, P13, J13, P14, J14.
- Serial Communication Device (Optional): For remote monitoring and control.
Detail A (Top View): Shows the arrangement of MUS and AUX1 contacts on the operator.
Wiring Diagram Summary
The diagrams illustrate the flow of electrical signals and power between the main transfer switch unit, the control panel, and external power sources (Normal and Emergency) and the load.
Key Connections:
- Power input from Normal and Emergency sources.
- Power output to the Load.
- Control signals from sensing circuits to the Control Panel.
- Indication signals from the Control Panel to pilot lights.
- Internal wiring between the Transfer Switch unit, solenoids, relays, and auxiliary contacts.
Optional Feature 9A: Load connected to Normal.
Optional Feature 9B: Load connected to Emergency.
Optional Feature 9C: Normal Source Available indication.
Optional Feature 9D: Emergency Source Available indication.
Optional Feature 6Q: Key operated controls.
Manufacturer Information
This document is property of ASCO Power Technologies, LP., Florham Park, New Jersey, USA.
Drawing Number: 212659
Revision History: Details of revisions and ECN (Engineering Change Notice) numbers are provided in the drawing border.
