STI Stopper® Station Series

Product Overview

These ADA Compliant, multipurpose push button switches cover a wide range of applications both indoors and outdoors. They are known as Stopper Stations. They incorporate a unique, patented design that helps to dramatically prevent accidental activation. A variety of standard models are available, or custom units can be created to meet specific needs. Customers have a choice of six universal shell colors, several button styles, and standard or custom wording and language.

How They Work

Due to their superior, patented design combined with quality construction throughout, these units are expected to provide outstanding performance for years. Many STI customers are surprised to find that this quality is available at no increase in price. Additionally, customers appreciate the option to protect the switches with STI protective covers, which carry a three-year guarantee against breakage in normal use, and a one-year guarantee on electro-mechanical and electronic components. For indoor applications, the Stopper Station can be ordered with a pre-alarm cover to help prevent malicious and accidental activation.

Key Features

General Information

• Multipurpose push button switches cover a wide range of applications both indoors and outdoors.
• Three-year guarantee against breakage of polycarbonate in normal use (one year on electro-mechanical and electronic components).

Design

• Unique, curved design helps protect against accidental activation.

Construction

• Station housing molded of tough polycarbonate.
• UL Listed to U.S. and Canadian safety standards (excludes pneumatic SS2xy8).
• Momentary models used with LT-1UL Latching Timer Module are Listed for access control.
• Stainless steel backplate.
• Push buttons are ADA Compliant (excludes SS2xy3).

Installation

• 5VA flammability rating on backplate and spacer.
• Typical working properties of polycarbonate are -40°F to 250°F (-40°C to 121°C).

Options

• Choice of colors: red, green, yellow, white, blue, or orange.
• Standard or custom text or hi-res logo.
• Custom text in any language.
• Protection with STI indoor/outdoor protective covers.

Unique Button Features

Visual examples of Stopper Stations include units labeled 'EMERGENCY POWER OFF', 'PUSH', 'EMERGENCY', 'ABORT', and 'EXIT', showcasing different button types and applications.

Model Series

Models SS2xy0, SS2xy1, SS2xy3, SS2xy4

• Interchangeable or replaceable N.O. or N.C., SPST gold-plated contact blocks rated for 3 amps @ 600 VAC or 1 amp @ 250 VDC.
• Standard switch includes one N.O. and one N.C. contact. Holds up to three individual isolated contacts.
• Rated for 6000 operations (excludes SS2xy3).
• Note: some standard single gang boxes need additional depth. To add 5/8" depth, order KIT-102722-color (B=blue, G=green, R=red, Y=yellow, W=white, E=orange).

Models SS2xy2, SS2xy5, SS2xy9

• Two (2) Form "C" contacts, DPDT, rated 10 amps @ 125/250 VAC, 6 amps @ 30 VDC.
• Multicolor illumination bar 12-24VAC/VDC LED (LED color options: red, green, and white).
• 100,000 operations.

Model SS2xy6

• Two (2) Form "C" contacts, DPDT, rated 10 amps @ 125/250 VAC, 6 amps @ 30 VDC.
• 12-24VAC/VDC LED.
• 100,000 operations.

Model SS2xy7

• Two (2) Form "C" contacts, DPDT, rated 10 amps @ 125/250 VAC, 6 amps @ 30 VDC.
• Operating range -31°F to 150°F (-35°C to 66°C).
• 12-24VAC/VDC LED.
• Weather resistant, suitable for indoor or outdoor use without a cover.
• 100,000 operations.

Model SS2xy8 - Not UL Listed

• Switch rating 10 amps resistive at 120-240 VAC and has a timer range: 4 - 60 seconds (± 15%) with repeat accuracy ± 10%.
• Indoor use only. Not recommended for outdoor/water applications, temperature range of button 15°F to 120°F (-9°C to +49°C).
• Timer life of over 1,000,000 operations.
• Pneumatic adjustable timer opens or closes a circuit and has a timed delay before reset. No electricity to operate.
• Multicolor illumination bar 12-24VAC/VDC LED (LED color options: red, green, and white).
• Ideal for security applications.
• 1 Form Z, 1 N.O. and 1 N.C. contact.

Detailed diagrams illustrate the internal components of various Stopper Station models, including contact blocks (e.g., N.O., N.C., Form C), illumination bars, and pneumatic timers. Exploded views show assembly and key parts. Accessories like depth spacers (e.g., KIT-102722) and key kits are also depicted.

Approvals & Warranty

Approvals

• UL/cUL File No. S7255, excludes SS2xy8 models.
• SS2xy7 models: UL/cUL Type NM suitable for indoor or outdoor use without a cover.
• UL 294 (models used with LT-1UL).
• CSA C22.2 No. 205, excludes SS2xy8 models.
• ADA Compliant, excludes SS2xy3 models.
• SS2xy8 models: UL Recognized Component UL508, indoor use only.

Warranty

Three-year guarantee against breakage of polycarbonate in normal use (one year on electro mechanical and electronic components).

Accessories

• LT-1UL: UL Latching/Timer Module.
• KIT-71100A-*: Back box for switch configuration 2, 5, 6, 7, 8 and 9.
• KIT-71101A-*: Back box & Spacer Kit for switch configuration 1, 3 or 4.
• KIT-71102A-*: Back box & spacer kit for switch configuration 0.
• KIT-E10196: N.O. contact for switch configuration 0, 1, 3 or 4.
• KIT-M10197H: Replacement contact holder for switch configuration 0, 1, 3 & 4.
• KIT-E10198: N.C. contact for switch configuration 0, 1, 3 or 4.
• KIT-102720-*: Stackable 10mm Spacer, European and US Mounting.
• KIT-102722-*: Plastic Spacer - adds 5/8" depth.
• KIT-H19030: Two Extra Keys for switch configuration 0.
• KIT-H18061: Two Extra Keys for switch configuration 2.
• KIT-H18062: Two Extra Keys for switch configuration 3.
• KIT-E10197H: Pack of two contact switch holders, one N.O. and one N.C. for switch configuration 0, 1, 3 or 4.
• (* = R=red, B=blue, G=green, Y=yellow, W=white, E=orange)

Product dimension diagrams provide measurements for height, width, and depth. Illustrations of the 'Stopper Station Shield' (Cover 2, A) and 'Universal Stopper' (Covers 3, 4, 7, 8) show protective covers designed to prevent accidental activation and damage. The Universal Stopper can optionally include a warning horn.

Model Coding and Customization

The model number is constructed using a series of codes:

Customization Options

Text Customization: Text option ZA allows for custom text. White text is used on blue, red, and green shells; black text is used on yellow, white, and orange shells.

• Custom Text for Top of Shell: 2 lines, 20 characters each (includes spaces).
• Custom Text for Bottom of Shell: 1 line, 20 characters (includes spaces).
• Custom Text for Cover 3, 4, 7, 8: 2 lines, 40 characters each (includes spaces).

Language Options: Available languages include English (EN), Spanish (ES), French (FR), and Other Languages (ZL).

A model coding diagram explains the structure for specifying a Stopper Station, combining codes for Color, Cover, Switch Configuration, and Text. Lists of available options for each category are provided, along with text and language customization details.