Nvent Hoffman Sites Operator Adapter Instruction Manual (+ PDF)

The I-T-E MAX-FLEXTM Operator Adapter is designed for use with
disconnect switches and circuit breakers mounted in Hoffman
enclosures. It allows for the installation of an I-T-E operating
handle on the right flange of the enclosure. The adapter comes with
all the necessary parts for installation, including an adapter
plate, plate gasket, screws, washers, and other components.

Compatibility:

The I-T-E MAX-FLEXTM Operator Adapter is compatible with Hoffman
two-door, floor-mounted, and one through six-door, free-standing
enclosures.

Manufacturer:

Hoffman

Manufacturer Contact Information:

Hoffman Customer Service 2100 Hoffman Way Anoka, MN 55303 Phone:
763.422.2211 Website: http://hoffman.nvent.com/contact-us

Product Usage Instructions:

Step 1: Install Adapter Plate
Attach the adapter plate (item 1) and plate gasket (item 2) on
the inside of the enclosure, behind the rectangular opening
provided. Make sure the gasket side with PSA (Pressure Sensitive
Adhesive) is attached to the adapter plate. Secure the plate and
gasket in place using four screws (item 3) and four nylon washers
(item 14).
Step 2: Assemble I-T-E Operating Handle
Attach the I-T-E operating handle to the mounting plate
installed in step 1. Omit the cap screw and lockwasher that fits
into the bottom hole of the I-T-E operating handle.
Step 3: Attach Slide Arm
Attach the bottom of the slide arm (item 4) to the offset arm of
the lock release mechanism. Use two flat washers (item 8), two
lockwashers (item 9), and two hex nuts (item 10). Do not tighten
until parts are adjusted (see step 5B).
Step 4: Adjust Handle Safety Lock Release Mechanism
The handle safety lock release mechanism is adjustable in two
places.
- (A) Check the adjustment of the factory-installed roller
  bracket. The door latch should hit against the latch stop portion
  of the roller bracket when the door is closed and latched. Adjust
  up or down if necessary.
- (B) The attached mechanism will then provide the necessary
  up-down motion required to operate the release mechanism in the
  I-T-E operating handle.

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OPERATOR ADAPTER SITES
Installation Instructions for I-T-E MAX-FLEXTM (For parts list, see Page 2)
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Rev. B

PH 763 422 2211 · nVent.com/HOFFMAN

P/N 89114665

89115504

The functions, fits and clearances of the installation described hereon are calculated from information supplied by the manufacturers of the equipment to be installed. Be certain to check the function, fits and clearances of all equipment both before and after installation to assure that it operates properly and safely and meets all applicable codes, standards and regulations.
In the event the completed installation does not function properly or fails to meet any such codes, standards or regulations, do not attempt to make alterations or operate the equipment. Report such facts immediately to:
Hoffman Customer Service 2100 Hoffman Way Anoka, MN 55303 763.422.2211
http://hoffman.nvent.com/contact-us

Parts List
Operator Adapter, Catalog Number SITES, for I-T-E MAX-FLEXTM Disconnects

Item No. Description

Part No.

Qty.

ADAPTER PLATE FOR FHOH AND FHOHS 27206002

PLATE GASKET

89109613

SCREW, 1/4-20X1/2 PAN HEAD

99401031

SLIDE ARM

26250001

SHOULDER COLLAR

26149001

SCREW, 1/4-20X7/8 HEX HEAD

99401030

LOCKWASHER, 1/4 SPRING

99401318

WASHER, FLAT

22101003

LOCKWASHER, 1/4 INTERNAL TEETH

99401300

NUT, 1/4-20 HEX

99401406

DOOR CATCH

23101002

SCREW, 10-32X3/8 PAN HEAD

99401007

LOCKWASHER, #10 INTERNAL TEETH

99401307

NYLON WASHER

26132003

INSTALLATION INSTRUCTIONS

89114652

These parts are for the smaller I-T-E flange handle. (FHOHS for disconnect switches, FHOH for circuit breakers)

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PH 763 422 2211 · nVent.com/HOFFMAN

89115504

INTRODUCTION
This installation instruction is for I-T-E MAX-FLEXTM mechanisms. These mechanisms are for disconnect switches and circuit breakers mounted in Hoffman two door, floor-mounted and one through six door, free-standing enclosures with the disconnect on the right flange.
INSTALLATION STEPS
Step 1 Install adapter plate (item 1) and plate gasket (item 2) on the inside of the enclosure, behind the rectangular opening provided. Gasket side with PSA should be attached to the adapter plate. Secure in place with four screws (item 3) and four nylon washers (item14).
Step 2 Assemble the I-T-E operating handle to the mounting plate which was installed in the enclosure in step 1. Omit cap screw and lockwasher which fits into bottom hole of I-T-E operating handle.
Step 3 Install the slide arm (item 4) over the interlock lever part of the I-T-E operating handle, as shown. Note that the notch in the slide arm is positioned toward the door opening. Place the smaller diameter end of the shoulder collar (item 5) through the oval slot in the slide arm. Install long cap screw (item 6) with lockwasher (item 7) through shoulder collar into the bottom mounting hole of the I-T-E operating handle and tighten. The slide arm should move up and down smoothly. Install interlock lever extension per I-T-E instructions.
Step 4 Attach the bottom of the slide arm to the offset arm of the lock release mechanism. Use two flat washers (item 8), two lockwashers (item 9), and two hex nuts (item 10). Do not tighten until parts are adjusted. (see step 5B)
Step 5 The handle safety lock release mechanism is adjustable in two places.
(A) Check the adjustment of the factory installed roller bracket. The door latch should hit against the latch stop portion of the roller bracket when the door is closed and latched. Adjust up or down if necessary. The attached mechanism will then provide the necessary up-down motion required to operate the release mechanism in the I-T-E operating handle.
(B) Adjust the length of the slide arm assembly. With proper adjustment of the slide arm, the safety lock (in I-T-E operating handle) should release just before the master door is fully latched. Lengthen slide arm if safety lock releases too soon. Shorten slide arm if safety lock releases too late.
Step 6 Attach the door catch (item 11), provided by Hoffman, to the tapped spacer on the door using the bottom set of mounting holes. Use two screws (item 12) and lockwashers (item 13). The door catch prevents the door from being opened when the I-T-E operating handle is in the “ON” position.
Step 7 Drill and tap holes in panel per I-T-E instructions. Disconnect can be located anywhere within reach of cable length being used. See I-T-E instructions.
Step 8 Install panel on collar studs in enclosure.
Step 9 Mount disconnect switch or circuit breaker and operating mechanism on panel using I-T-E instructions and parts.

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For Two-Door, Floor-Mounted and One- Through Six-Door, Free-Standing Enclosures with Disconnect on Right Flange

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PH 763 422 2211 · nVent.com/HOFFMAN

89115504

INTRODUCTION
This installation instruction is for I-T-E MAX-FLEXTM mechanisms. These mechanisms are for disconnect switches and circuit breakers mounted in Hoffman two door, floor-mounted enclosures with the disconnect on the centerpost.
INSTALLATION STEPS
Step 1 Install adapter plate (item 1) and plate gasket (item 2) on the inside of the enclosure, behind the rectangular opening provided in the centerpost. Gasket side with PSA should be attached to the adapter plate. Secure in place with four screws (item 3) and four nylon washers (item14).
Step 2 Assemble the I-T-E operating handle to the mounting plate which was installed in the enclosure in step 1. Omit cap screw and lockwasher which fits into bottom hole of I-T-E operating handle.
Step 3 Cut 2 1/2 inches off bottom end of slide arm (item 4) (bottom end has rectangular holes only).
Step 4 Install the slide arm (item 4) over the interlock lever part of the I-T-E operating handle, as shown. Place the smaller diameter end of the shoulder collar (item 5) through the oval slot in the slide arm. Note that the notch in the slide arm is positioned toward the door opening. Place the smaller diameter end of the shoulder collar (item 5) through the oval slot in the slide arm. Install long cap screw (item 6) with lockwasher (item 7) through shoulder collar into the bottom mounting hole of the I-T-E operating handle and tighten. The slide arm should move up and down smoothly. Install interlock lever extension per I-T-E instructions.
Step 5 Attach the bottom of the slide arm to the offset arm of the lock release mechanism. Use two flat washers (item 8), two lockwashers (item 9), and two hex nuts (item 10). Do not tighten until parts are adjusted.
Step 6 Adjust the length of the slide arm assembly. With proper adjustment of the slide arm, the safety lock (in I-T-E operating handle) should release just before the master door is fully latched. Lengthen slide arm if safety lock releases too soon. Shorten slide arm if safety lock releases too late.
Step 7 Attach the door catch (item 11), provided by Hoffman, to the tapped spacer on the door using the bottom set of mounting holes. Use two screws (item 12) and lockwashers (item 13). The door catch prevents the door from being opened when the I-T-E operating handle is in the “ON” position.
Step 8 Drill and tap holes in panel per I-T-E instructions. Disconnect can be located anywhere within reach of cable length being used. See I-T-E instructions.
Step 9 Install panel on collar studs in enclosure.
Step 10 Mount disconnect switch or circuit breaker and operating mechanism on panel using I-T-E instructions and parts.

89115504

PH 763 422 2211 · nVent.com/HOFFMAN

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For Two-Door, Floor-Mounted Enclosures with Disconnect on Centerpost

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PH 763 422 2211 · nVent.com/HOFFMAN

89115504