Applicable U.S. Standards

Applicable International Standards

ANSI B11 Standards for Machine Tools Safety

Contact: Safety Director, AMT – The Association for Manufacturing

Technology, 7901 Westpark Drive, McLean, VA 22102, Tel.:

703-893-2900

ANSI NFPA 79 Electrical Standard for Industrial Machinery

Contact: National Fire Protection Association, 1 Batterymarch Park,

P.O. Box 9101, Quincy, MA 02269-9101, Tel.: 800-344-3555

ANSI/RIA R15.06 Safety Requirements for Industrial Robots and Robot

Systems

Contact: Robotic Industries Association, 900 Victors Way, P.O. Box

3724, Ann Arbor, MI 48106, Tel.: 734-994-6088

EN ISO 12100 Safety of Machinery – Basic Concepts, General

Principles for Design

EN 60204-1 Electrical Equipment of Machines Part 1: General

Requirements

EN ISO 13849-1 Safety-Related Parts of Control Systems

ISO 13856-1 (EN1760-1), Safety of Machinery – Pressure-Sensitive

Protective Devices

Contact: Global Engineering Documents, 15 Inverness Way East,

Englewood, CO 80112-5704, Tel.: 800-854- 7179

Overview

Models SSA-EB series are metal “mushroom-style” mechanical emergency stop buttons, available with or without a compact

enclosure housing, to provide emergency stop actuation.

When the button is armed, the switch’s normally closed contacts are closed and its normally open contacts, if present, are open.

When the button is pushed, the switch’s normally closed contacts open and its normally open contacts close. The contacts remain

in this condition until the push button is manually rearmed. To manually rearm, twist the push button.

These emergency stop buttons are not safeguarding devices. They do not automatically protect personnel from injury.

Installation

Mechanical Installation

1. Latch the push button onto the mounting adapter by rotating it.

2. Attach the mounting adapter to the mounting surface using the

incorporated screws. (Tmax = 7.14 in-lb/0.8 Nm). Snap the auxiliary

contacts onto the mounting adapter. Use the disc label with legend at

every switch per appropriate standards

3. Mount the E-Stop button on a rigid surface that is easily accessible

and visible to operators and other personnel. Refer to appropriate

standards for recommendations on number and placement.

Electrical Installation

To access the wiring chamber, remove four screws and the cover. Conduit

mounting via removable rubber plug or knockout.

Figure 1. Assembly

Maintenance

The Designated Person should check the emergency stop buttons for proper operation, physical damage, button looseness, and

excessive environmental contamination. This should take place on a periodic schedule determined by the user, based on the

severity of the operating environment and the frequency of switch actuations

Adjust, repair, or replace components as needed. If inspection reveals contamination on the switch, thoroughly clean the switch

and eliminate the cause of the contamination. Replace the switch and/or appropriate components when any parts or assemblies

are damaged, broken, deformed, or badly worn; or if the electrical/mechanical specifications (for the environment and operating

conditions) have been exceeded.

Always test the control system for proper functioning under machine control conditions after performing maintenance, replacing

the emergency stop device, or replacing any component of the device.

possesses a recognized degree or certificate or has extensive knowledge, training, and experience to solve problems relating to the emergency stop

installation (reference ANSI B30.2).

SSA-EB Series Emergency Stop Buttons

2

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P/N 111880 Rev. B