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  1. Health - Safety - Environment
  2. Building Security and Machine Safety
  3. LED stack light
  4. Qlight Co., Ltd.

LED stack light QTC50ML
flashingsteady2-color

LED stack light - QTC50ML - Qlight Co., Ltd. - flashing / steady / 2-color
LED stack light - QTC50ML - Qlight Co., Ltd. - flashing / steady / 2-color
LED stack light - QTC50ML - Qlight Co., Ltd. - flashing / steady / 2-color - image - 2
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Go to the Qlight Co., Ltd. website for more information

Characteristics

Technology
LED
Type
flashing, steady
Number of colors
3-color, 4-color, 2-color, 5-color
Protection level
IP65, IP54
Mounting
surface-mount
Options and accessories
with buzzer
Other characteristics
modular

Description

Overview
  • Ø50 mm direct-mount LED signal tower for industrial signalling
  • Modular design with steady and steady/flashing LED modules
  • Optional built-in buzzer up to 85 dB (higher-volume and two-tone options available)


Key features
  • Clear outer lens with separate internal color filter for distinct signal colours
  • Lock-type structure enables tool-free addition/removal of modules and colour reconfiguration
  • QTCA variants integrate lens and cover for a simplified external appearance
  • Translucent filter ensures comfortable close-up viewing when lights are off
  • Built-in buzzer: standard Max. 85 dB at 1 m; optional high-volume (100 dB) and 2-sound configurations
  • Compatible with NPN open-collector input; PNP types available
  • Flashing rate: 60–80 flashes/min
  • Operating temperature: -30°C to +50°C
  • Protection: standard IP65; built-in buzzer type IP54
  • Pre-wired standard; M12 connector available on request
  • 24 VDC UL-listed model available as option
  • Certifications: CE compliant, UL listed; RoHS compliant


Product brief
  • Product family: QTC / QTCA Series
  • Model variants: steady, steady with built-in buzzer (-BZ), steady/flashing (-F), steady/flashing with buzzer (-F-BZ), and QTCA integrated-cover variants


Available colours (by number of layers)
  • 1 layer: R (Red)
  • 2 layers: R (Red) / G (Green)
  • 3 layers: R (Red) / A (Amber) / G (Green)
  • 4 layers: R (Red) / A (Amber) / G (Green) / B (Blue)
  • 5 layers: R (Red) / A (Amber) / G (Green) / B (Blue) / W (White)


Technical tables
Model / Layer / Voltage / Certificates / Weight / Colour
  • Models: QTC50ML, QTC50ML-BZ, QTC50MLF, QTC50MLF-BZ, QTCA50ML, QTCA50ML-BZ, QTCA50MLF, QTCA50MLF-BZ
  • 1 layer: DC12V / DC24V / AC110–220V — CE, UL — ≈0.20 kg (DC12/24V) / 0.30 kg (AC) — R
  • 2 layers: DC12V / DC24V / AC110–220V — CE, UL — ≈0.28 kg / 0.38 kg — R; G
  • 3 layers: DC12V / DC24V / AC110–220V — CE, UL — ≈0.37 kg / 0.47 kg — R; A; G
  • 4 layers: DC12V / DC24V / AC110–220V — CE, UL — ≈0.45 kg / 0.55 kg — R; A; G; B
  • 5 layers: DC12V / DC24V / AC110–220V — CE, UL — ≈0.54 kg / 0.64 kg — R; A; G; B; W


Light source / buzzer current (based on 1 layer)
  • Voltage: DC12V | DC24V | AC110–220V
  • Light source current (1 layer): 90 mA | 70 mA | Max. 55 mA
  • Buzzer current (1 layer): 40 mA | 75 mA | Max. 55 mA


Sound tone combinations (standard)
  • 1 buzzer sound: Pi-- Pi-- (slow)
  • 2 buzzer sounds (custom): Pi--- Pi--- (moderate); Pi pi pi (short)
  • Continuous buzzer (custom): Pi--- continuous


Materials
  • Lens: PC
  • Inner lens: PC
  • Housing: ABS


Technical specifications
  • Model name: QTC50ML / QTCA50ML (variants: -BZ = built-in buzzer, -F = steady/flashing)
  • Nominal diameter: Ø50 mm
  • Height range (depending on layers/accessories): 116–364 mm
  • Supported voltages: DC12V, DC24V, AC 100–240V (AC type free-voltage range 100–240V)
  • Flashing rate: 60–80 flashes/min
  • Operating temperature: -30°C to +50°C
  • Protection rating: Standard IP65; built-in buzzer type IP54
  • Maximum buzzer volume: up to 85 dB at 1 m (options for 100 dB and 2-sound available)
  • Interface: compatible with NPN open-collector input; PNP available; pre-wired standard; M12 connector optional
  • Weights vary by layers and voltage (see table above)
  • Certifications: CE compliant; UL listed (24VDC UL-listed model optionally available)
  • RoHS compliant

Catalogs

Go to the Qlight Co., Ltd. website for more information

Other Qlight Co., Ltd. products

Tower Lights QTC/QTCA Series

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.
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