855 Control Tower Stack Lights

Bulletin 855 Control Tower™ Stack Lights provide multi-status indication of your application. They are available in three sizes with UL Type 4/4X/13, IP65 ratings, to meet the most challenging panel and on-machine applications. We have a wide variety of light and sound functions, colors, voltages, and mounting options. We offer stack lights as separate light and sound modules or pre-assembled for greater flexibility.

Bulletin 855 Control Tower Stack Lights, 30 mm, 50 mm, 70 mm
  • Overview
  • Product Selection
  • Specifications
  • Documentation
  • Resources

Features

  • Available in 30 mm, 50 mm, and 70 mm sizes
  • Steady and flashing status indicator light modules
  • Continuous or pulsing piezo sound modules
  • Stacking configurations 1…5 modules high
  • Multiple mounting options
  • Top-mounted terminal blocks on all bases
  • DeviceNet bases available 

855T Transducer-style Sound Modules
Our sound modules are availabe in up to 15 tones, with adjustable volume, frequency, and speed. To hear an option, select any tone from the table below.

Transducer-style Sound Modules [.WAV]
Gong 1  Gong 2 Gong 3 Changing (500 Hz) Continuous (500 Hz)
Continuous (1500 Hz) Emergency Interrupted (500 Hz) Interrupted (1500 Hz) Ascending
Descending Signal (100 Hz) Sine Wave Siren Triangle

Product Comparison


Compact Control Tower™ Lights

 Control Tower™ Lights

Bulletin

855D

855F

855E

855T

Size

30 mm

70 mm

50 mm

70 mm

Environmental Ratings

UL Type 4/4X/13, IP65
Indoor and outdoor use

UL Type 4/4X/13, IP65
Indoor and outdoor use

UL Type 4/4X/13, IP65 on all bases, lights and caps sound modules
Indoor and outdoor use

UL Type 4/4X/13, IP65 on all bases, lights piezo style sound and caps (sound and light with sound combo modules are IP54)
Indoor and outdoor use

Ease of Assembly, Base Wiring and Lamp Changes

No assembly required - all towers are assembled, wired, and tested at the factory

No assembly required - all towers are assembled, wired, and tested at the factory

No-tools assembly and maintenance, “Twist-off” lenses for easy lamp changes, topmounted terminal block for easy base wiring

No-tools assembly and maintenance, “Twist-off” lenses for easy lamp changes, topmounted terminal block for easy base wiring

Illumination Types

LED

LED

Incandescent, socket-mount LED, or strobe

Incandescent, socket-mount LED, or strobe

Lens Colors

Green, red, amber, blue, yellow, clear

Green, red, amber, blue, yellow, clear

Green, red, amber, blue, yellow, clear

Green, red, amber, blue, yellow, clear

Pole-Mount Base Options

Surface, 10 cm metric tube, and 25 cm metric tube

Surface, 10 cm metric tube, and 25 cm metric tube

10, 25, 40, 60, and 80 cm bases

10, 25, 40, 60, and 80 cm – aluminium or stainless steel bases

Other Base Mounting Options

Vertical bracket, conduit adapter, and quick-release base

Vertical bracket, conduit adapter, and quick-release base

Surface-mount bases (surface-mount bases also feature 1/2 NPT, PG16, and M20 threading options), vertical-mount bases, and quickrelease bases

Surface-mount bases (surface-mount bases also feature 1/2 NPT, PG16, and M20 threading options) vertical-mount bases, and quick-release bases

Housing Colors

Black or grey base housing

Black base housing

Black or grey base housing

Black or grey base housing

Sound Options

Piezo-style sound modules in single and two tone

Piezo-style sound modules in single and two tone

Piezo-style sound modules in single and two tone

Transducer-style or Piezo-style sound modules available in single or two tone (sound modules are UL Type 12, IP54), Piezo styles and modules also available in 4/4X

Connectivity

Standard connectivity

Standard connectivity

Standard connectivity

Standard or DeviceNet connectivity

Voltage Options

Bases available in: 24V AC/DC, 120V AC, 240V AC as standard offerings

Bases available in: 24V AC/DC, 120V AC, 240V AC as standard offerings

All modules available in: 12V AC/DC, 24V AC/DC, 120V AC, 240V AC as standard offerings

All modules available in: 12V AC/DC, 24V AC/DC, 120V AC, 240V AC as standard offerings

Pole Connection Box

Surface, vertical, and magnetic mount

Surface, vertical, and magnetic mount

Standards

cULus Listed, CE

cULus Listed, CE

cULus Listed and CE on all components

cULus Listed and CE on all components

Operating Temperature

-25…+50 °C
(-13…+122 °F)

-25…+60 °C
(-13…+140 °F)

-25…+50 °C
(-13…+122 °F)

-25…+70 °C
(-13…+158 °F)

Material

Polycarbonate - bases, cap, lens cover, sound module housing, lens, & lamp socket

Polycarbonate - bases, cap, lens cover, sound module housing, lens, & lamp socket

Polycarbonate (no sound module) - bases, cap, lens cover, lens, & lamp socket

Polycarbonate - bases, cap, lens cover, sound module housing, lens, & lamp socket

To view commonly ordered and quickly available products, use the Product Configuration Assistant for our complete product offerings.

Specifications

TitleNumberDownload
Signaling Specifications Technical Data855-TD001

Certifications

  • CE Marked (855T, 855E, and 855F only)
  • cULus Listed — File No. E14840; Guide Nos. NKCR, NKCR7

Certifications apply when product is marked. See our Product Certification site for Declarations of Conformity, certificates and other certification details.

Standards Compliance

  • CSA C22.2 No. 14
  • EN/IEC 60947-1
  • EN/IEC 60947-5-1
  • UL 508

Product Certifications

See our Product Certification site for Declarations of Conformity, certificates and other certification details.

Documentation

TitleNumberDownload
Signaling Solutions Brochure855-BR001
Signaling Solutions Overview855-BR002
Signaling Specifications Technical Data855-TD001
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Product Certifications

See our Product Certification site for Declarations of Conformity, certificates and other certification details.

Configuration & Selection Tools

  • CrossWorks — Convert competitive catalog numbers to similar Allen-Bradley® products.
  • ProposalWorks — Build complete quotes and proposals.

Other Resources

  • Knowledgebase — Visit our online resource for technical information, support chat and forums, software updates, and product safety advisories/notices.