GE Industrial Solutions Power Break II Hidden on Button User Manual

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DEH–025A

Power Break® II Circuit Breaker
Accessories

Hidden On Button

Introduction

The Hidden On Button, catalog number SPPBNONR, can be
installed on 800–4000 ampere-frame Power Break® I I circuit
breakers. The kit consists of an unmarked replacement for the
normal On button and a plastic button that attaches to the
breaker mechanism.

Operation

Charge the breaker closing springs , then insert the end of an
approximately 0.1-inch-diameter steel rod through the hole in
the center of the Hidden On Button, as shown in Figure 1.
When the rod engages the button attached to the mechanism,
light pressure on the rod will close the breaker mechanism.

Use the following procedure to install the Hidden On Button:

1. If a trim plate is installed on the breaker, loosen the four

screws securing the trim-plate assembly and remove the
trim plate from the breaker.

2. Loosen the four screws at the corners of the breaker

cover. Pull the operating handle down and hold it
extended, then remove the cover.

3. Locate the tab on the breaker mechanism that is

normally engaged by the on button, shown in Figure 2.

ON Button

Tab

Figure 1. Activating the breaker closing mechanism through the hole in

the Hidden On Button.

Installation

WARNING: Before installing any accessories, turn the breaker
OFF, disconnect it from all voltage sources, and discharge the
closing springs.

AVERTISSEMENT: Avant d’installer tout accessoire, mettre le
disjoncteur en position OFF, le déconnecter de toute tension
d’alimentation, et décharger les ressorts d’armement.

Figure 2. Tab on the breaker mechanism engaged by the On button.

4. Slide the slot on the white plastic button, supplied in the

Hidden On Button kit, over the tab on the lever that
closes the breaker, as shown in Figure 3. Push the button
to the limit of the lever’s travel to ensure a tight fit.

CAUTION: If the white plastic button is not fully seated on the
tab on the breaker-closing lever, the breaker interlocks will not
function.

ATTENTION: Les mécanismes de verrouillage du disjoncteur
ne fonctionneront pas si le poussoir de plastique blanc n’est pas
complètement enfoncé sur l’attache du levier de fermeture de
l’interrupteur.

5. From the back side of the breaker cover, use two

screwdrivers to press in the locking tabs on the ends of
the normal On button, as shown in Figure 4, then push
the button out through the front of the cover.

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Plastic Button

Installed on
Mechanism

Figure 3. Plastic button installed on the breaker mechanism.

6. Slide the replacement On button into the slot on the front

of the breaker cover, as shown in Figure 5, then press it
in until the locking tabs click into place.

7. Reinstall the breaker top cover, ensuring that the Trip

Unit and aluminum accessory sleeve are properly aligned
with the cover. Tighten the four #10-32 screws to 15 in­lb.

8. Replace the trim plate, if installed, and tighten the four

#8-32 screws to 15 in-lb.

Figure 5. Installing the replacement On button into the breaker cover.

Figure 4. Removing the original On button from the breaker cover by

pressing the locking tabs with two screwdrivers.

These instructions do not cover all details or variations in equipment nor do they provide for every possible contingency that
may be met in connection with installation, operation, or maintenance. Should further information be desired or should

articular problems arise that are not covered sufficiently for the purchaser’s purposes, the matter should be referred to the

GE Company.

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GE Electrical Distribution & Control

General Electric Company
41 Woodford Ave., Plainville, CT 06062

DEH– 025A 0997 © 1997 General Electric Company