ASCO H150, H300, H386 Series 600-1000 Amp Transfer Switches Composite Outline

Diagram Description: Composite Outline

This document provides a composite outline and dimensional information for ASCO H150, H300, and H386 Series automatic transfer switches, rated for 600-1000 Amperes, Type 3R/4/12 enclosures.

The outline illustrates various views of the transfer switch enclosure, including:

• Left Side View (With Door): Shows the overall dimensions and external features. Key dimensions include a height of 72.00 inches (Box O.D.), a depth of 19.09 inches, and a width of 34.00 inches (Enclosure). A ground buss for 600 Amps is noted as "Top Only", while a ground buss for 800-1000 Amps is located at "Both Top and Bottom".
• Front View (Without Door): Displays the internal layout of the switchgear. It shows the main load lugs, neutral connections, and terminal blocks (TB) for field connections, specifically for H150/H300 models. Dimensions include a height of 72.00 inches (Box O.D.) and a depth of 19.09 inches.
• Right Side View: Shows the enclosure from the right. Key dimensions include a height of 75.00 inches (Total O.D.) and a depth of 19.09 inches. This view highlights the location of user controls and indicators, and field connections terminal block (TB) for H386 models.
• Front View (With Door): Similar to the front view without the door, showing the internal components.
• Bottom View: Details the bottom of the enclosure, indicating a conduit area with dimensions 29.0 x 14.0 inches. It also shows mounting hole locations (4 PLC's with diameter 0.56 inches) and leg height (3.00 inches). Minimum door clearance is 34.00 inches.

The enclosure is described as free-standing, floor-mounted, constructed from 12-gauge formed frame. The door is hinged on the right side with clamps and a lockable handle on the left. The standard finish is ASA 61 Gray polyester powder, with other ANSI colors available upon consultation.

General Notes

1. Type 3R/4/12 enclosure. Free standing. Floor mounted. 12 gauge formed frame construction.
2. Door hinged on right side. Door clamps and lockable handle on left.
3. Finish: ASA 61 Gray, polyester powder standard. Other ANSI colors available, consult factory.
4. UL Recognized.
5. Recommended Clearances: Front: 34 inches.
6. The standard switch configuration is for top lugs (Emergency and Load) and bottom lugs (Normal).
7. Neutral Configurations:
   • H300-A: Full rated solid (copper bus) neutral connection for each source and the load is provided standard. Optionally, a switched neutral pole may be provided as specified by the catalog number. (B) indicates a switched neutral pole.
   • H386: An optional full rated neutral connection for each source and the load may be provided when equipped. It is in one of the following formats as specified by the catalog number: Neutral Type: A. Solid (copper bus) neutral, B. Switched neutral pole.
8. Remove bottom knockouts for Type 3R.

Cabling Notes

1. All sizes supplied standard with mechanical (screw type) lugs. (See Amp Size below)
   • Lug Material: Aluminum Alloy 6061-T6 with electro tin plated finish.
   • Screw Material: Aluminum Alloy 6262-19 with electro tin plated finish.
   • UL Listed, CSA Certified.
   • Lug screw tightening torque per UL 486B: 19 ft-lbs.
   • Suitable wire bending space is provided. (See Amp Size below)
2. Optional copper crimp lugs may be supplied. (See Amp Size below)
   • Lug Material: High conductivity wrought copper finish, electro tin plated.
   • UL Listed, CSA Certified.
   • Lug mounting hardware tightening torque: Refer to withstand current rating label provided on each transfer switch.
   • Suitable wire bending space is provided. (See Amp Size below)
3. Consult factory for other termination requirements.

Notes 600 Amp Switches

1. Supplied with standard mechanical (screw type) lugs on the Normal, Emergency & Load bus stabs. One (1) lug per phase and neutral each suitable for connection of two (2) #2 -600MCM CU/AL cable (see note "E" below).
2. Suitable wire bending space is provided for up to two (2) 600MCM cables per terminal per Table 373-6(b) of NFPA 70 of the NEC.
3. Optional copper crimp lugs may be supplied. Up to two (2) two-hole, long barrel CU crimp lugs rated for up to 600MCM (Refer to crimp lug installation data provided with unit for full installation details).
4. Suitable wire bending space is provided for up to two (2) 600MCM cables per terminal per Table 373-6(b) of NFPA 70 of the NEC.

Notes 800-1000 Amp Switches

1. Supplied with standard mechanical (screw type) lugs on the Normal, Emergency & Load bus stabs. One (1) lug per phase and neutral each suitable for connection of four (4) 1/0 -750MCM CU/AL cable (see note "E" below).
2. Suitable wire bending space is provided for up to four (4) 600MCM cables per terminal per Table 373-6(b) of NFPA 70 of the NEC.
3. Optional copper crimp lugs may be supplied. Up to four (4) two-hole, long barrel CU crimp lugs rated for up to 600MCM (Refer to crimp lug installation data provided with unit for full installation details).
4. Suitable wire bending space is provided for up to four (4) 600MCM cables per terminal per Table 373-6(b) of NFPA 70 of the NEC.