Explosion Proof Photocell | 1/2 in or 3/4 in NPT | Attaches to Fixture Knockout | Class 1 Div 2
Dwayne Kula | President, CTO and Founder
Out of stock
Product Specifications
UL Specs
- UL 844 Hazardous Locations
- Class I, Division 2, Groups A, B, C, D
- Class II, Division 1, Groups E, F, G
- Class II, Division 2, Groups F, G
- Class III
- UL 1598 Suitable for Wet Locations
- UL 1598A Marine Outside Type
- ABS
Key Features
| Brand | LED Lighting Supply |
| Voltage | 100V-277V |
Durable Construction
| IP Rating | IP65 |
| Operating Temperature | -22°F to 122°F |
| Certifications | ETL |
| Warranty | 5 years |
Measurements
| Dimensions (in) | 5.6 X 5.6 X 4.2 |
C1D2 Explosion Proof Photocell (on/off only). Attaches to the fixtures knockout. 3/8 inch knockout standard, 1/2 inch knockout available.
Product Lighting Layout Estimator
Use this estimator to calculate approximate fixture count, spacing, and average foot-candles for a simple rectangular space using the selected LED fixture. Enter your room dimensions, mounting height, target foot-candles, light loss factor, and room/layout condition to generate a preliminary lighting layout. When IES photometry is available, workplane height and room reflectance controls are shown.
Project Inputs
Estimated Results
Estimated average foot-candles are preliminary and should be verified with a lighting plan for project-critical applications.
Room / Layout Condition: This field is used only when usable IES photometry is not available. In fallback mode, it acts as a simplified room utilization factor for reflectance, fixture distribution, racking, obstructions, and how much fixture light reaches the work area. Open / light-colored spaces use 0.90, typical warehouses or shops use 0.75, racked or obstructed spaces use 0.60, and dark or complex spaces use 0.45. When IES photometry is active, this field is hidden and the estimator uses the selected workplane height, LLF, and simplified reflectance adjustment instead.
Photometry / Simulation Note: When usable IES photometry is available for the selected fixture, this estimator uses the fixture’s IES candela data, selected workplane height, light loss factor, and simplified reflectance adjustment to estimate fixture count, average foot-candles, and visual light distribution. The reflectance adjustment is a conservative approximation and is not a full zonal-cavity, radiosity, or professional photometric room calculation. When IES photometry is not available, the estimator uses a simulated beam model based on lumens, mounting height, room/layout condition, light loss factor, and beam angle.
Preliminary Estimate Only: This estimator is intended for simple square or rectangular spaces and should be used as a planning aid, not a final photometric lighting plan. Actual light levels may vary based on fixture optics, selected IES file, mounting conditions, workplane height, ceiling height, surface reflectance, obstructions, controls, voltage, installation conditions, and site-specific requirements. Project-critical applications should be verified with a formal lighting plan.
This estimate is a starting point. Warehouses, industrial facilities, hazardous locations, sports areas, schools, healthcare spaces, public areas, and code-sensitive projects may require a reviewed lighting layout before purchase or installation.
Product Overview
This explosion proof photocell provides on/off control for compatible hazardous location lighting fixtures. It attaches through a fixture knockout and operates on 100V-277V.
The photocell is intended for fixture-mounted daylight response where automatic on/off control is required. It is rated for Class I Division 2, Class II Division 1 and 2, and Class III locations.
Core Performance and Output
This is a control accessory and does not produce light output or beam distribution. It switches compatible fixture loads on and off based on ambient light conditions.
Input voltage is 100V-277V. The supplied data identifies on/off operation only; it does not establish dimming or programmable control functions.
Adjustability and Control Options
The photocell provides automatic on/off control only. It does not include adjustable output settings, scheduling, dimming, or occupancy sensing.
Control behavior depends on available ambient light at the fixture location. Mounting position should prevent the controlled fixture from directly affecting the photocell’s light sensing area.
Longevity and Reliability
The photocell is rated IP65 and operates from -22F to 122F. These ratings support use in wet and hazardous location lighting installations within the stated operating range.
A 5-year warranty is included. Long-term operation depends on correct fixture knockout attachment and maintaining the enclosure seal at the installation point.
Build Quality and Physical Characteristics
The photocell measures 5.6 x 5.6 x 4.2 inches. It mounts to the fixture through a knockout connection.
The supplied installation information identifies a 3/8 inch knockout as standard and a 1/2 inch knockout as available. The product title also identifies 1/2 inch or 3/4 inch NPT connections; verify the fixture knockout and connection requirement before installation.
Where This Product Fits Best
This photocell fits explosion proof lighting systems where fixture-mounted automatic on/off control is needed in classified or wet environments.
- hazardous location lighting
- paint booth lighting
- chemical processing facility lighting
- oil and gas facility lighting
- refinery lighting
- marine environment lighting
Its Class I Division 2, Class II Division 1 and 2, Class III, wet location, marine outside type, and IP65 ratings define the environmental conditions supported by the supplied product data.
Installation and Long-Term Use
The photocell attaches to a fixture knockout and requires a compatible knockout size and connection arrangement. Fixture wiring and installation must match the 100V-277V operating range.
Maintain the fixture enclosure integrity during installation. The photocell should be positioned where ambient light can reach the sensor without direct interference from the controlled fixture.
How This Fixture Is Commonly Used
In hazardous location lighting and paint booth lighting layouts, the photocell is mounted directly on the fixture rather than as a separate wall-mounted control. Mounting height follows the fixture location and project layout; the supplied data does not establish a photocell-specific mounting height range.
Fixture spacing and placement remain part of the lighting layout, while the photocell provides fixture-level on/off response. Control performance can vary when fixture placement exposes the sensor to reflected or direct fixture light.
Safety, Certifications, and Warranty
UL 844 Hazardous Locations. Class I, Division 2, Groups A, B, C, D. Class II, Division 1, Groups E, F, G. Class II, Division 2, Groups F, G. Class III.
UL 1598 Suitable for Wet Locations. UL 1598A Marine Outside Type. ABS. ETL. IP65. Warranty: 5 years.
Frequently Asked Questions
Q: What voltage does this explosion proof photocell operate on?
A: The photocell operates on 100V-277V.
Q: Does this photocell provide dimming control?
A: No. The supplied product data identifies on/off control only.
Q: How does the photocell attach to a fixture?
A: It attaches through a fixture knockout. The supplied installation information identifies a 3/8 inch knockout as standard and a 1/2 inch knockout as available.
Q: What environmental rating does the photocell have?
A: The photocell is rated IP65 and has an operating temperature range of -22F to 122F.
Application Questions and Clarification
Q: Can this photocell be used for hazardous location lighting?
A: The photocell is listed for UL 844 Hazardous Locations and Class I, Division 2, Groups A, B, C, and D.
Q: What should be reviewed before adding this photocell to paint booth lighting fixtures?
A: Confirm the fixture knockout size, connection requirement, available voltage, and sensor location. The supplied data identifies 100V-277V operation and fixture knockout attachment.
Q: Can this photocell be used in marine environment lighting?
A: The photocell is listed as UL 1598A Marine Outside Type and ABS. It is also rated IP65.
Web ID: 2054
