Description
HLSW-PB20 Non-Metallic Explosion-Proof Switch C1D2/C2D2
The HLSW-PB20-PB.SG-3PSW-ESTP is a heavy-duty, non-metallic explosion-proof switch engineered for reliable motor and equipment control in hazardous Class I, Division 2 and Class II, Division 2 environments. Designed to withstand volatile industrial atmospheres, this compact station integrates high-performance switching components into a durable, corrosion-resistant housing ideal for petroleum refineries, chemical plants, and outdoor processing sites.
Built for extreme field dependability, the unit features a high-strength PA6 glass-reinforced anti-static housing with f1 UV protection and V-0 flame resistance. It operates efficiently across extreme ambient temperatures ranging from -50°C to +60°C. Equipped with silver alloy contacts, a 20A switching capacity up to 690V AC, and full silicone gasketing (NEMA 4X / IP66), it ensures long-term electrical conductivity and environmental protection during high-duty cycles.
Key Features:
✅ C1D2, C2D2, C3D1/D2, and ATEX Zone 1/21 rated for explosive hazardous locations
✅ 690V AC, 20A capacity, 2 HP rating with (2) NO & (2) NC contacts
✅ NEMA 3, 4, 4X, 12, 13 and IP66 ingress protection against water and dust
✅ High-strength PA6 glass-reinforced anti-static polycarbonate enclosure
✅ Green Start / Red Stop double push button + Red Mushroom-Head Emergency Stop
✅ 3-Position maintained contact selector switch for multi-mode control
✅ Extreme operating temperature range from -50°C to +60°C
✅ f1 UV-resistant and V-0 flame-retardant housing construction
✅ Standard DIN rail mount layout with (1) 1/2″ NPT threaded wiring hub
📦 Package Options:
🔹 Standard Configuration: Fully assembled HLSW-PB20 switch unit with internal contact blocks and DIN rail mounting
🔹 Custom Hub/Enclosure Options: Specific wiring hub configurations, CAD files, or wiring schematics available upon request
HLSW-PB20 Non-Metallic Explosion Proof Switch C1D2/C2D2 Technical Specifications:
| Feature | Details |
|---|---|
| Product ID | 320701 |
| Model / SKU | HLSW-PB20-PB.SG-3PSW-ESTP |
| Switch Type | Non-metallic Explosion-Proof Control Station |
| Class & Division Ratings | Class I, Division 2, Groups A, B, C, D; Class II Division 2, Groups E, F, G; Class III, Divisions 1 & 2 |
| Zone & ATEX Ratings | Class I Zone 1 AEx de IIC T4/T5/T6 Gb Class II Zone 2 AEx tb IIIC T4/T5/T6 Db IP66 ATEX II 2 G Ex de IIC / II 2 D Ex tb IIIC |
| NEMA / IP Ratings | NEMA 3, 4, 4X, 12, 13; IP66 Ingress Protection |
| Dimensions | 3.95" W x 5.47" H x 4.16" D |
| Electrical Rating | 690V AC, 20A, 50-60Hz |
| Horsepower Rating | 2 HP |
| Push Buttons | Start/Stop Double Push Button (Green/Red) Red Mushroom Head Emergency Stop |
| Selector Switch | 3-Position Maintained Contact |
| Contact Configuration | (2) Normally Open & (2) Normally Closed |
| Operating Temperature | -50°C to +60°C |
| Housing Material | Glass Reinforced Anti-static Polycarbonate (PA6) |
| Housing / Legend Plate | Black Housing / Silver Legend Plate |
| Flame & UV Ratings | UV Protection: f1; Flame Retardancy: V-0 |
| Gasket Material | Silicone |
| Mounting Type | DIN Rail Mount |
| Wiring Hub | (1) 1/2" NPT Hub |
| Export Classification | EAR99 |
Certifications & Compliance:
🔗 Class I, Division 2, Groups A, B, C, D – Explosion-proof rating for flammable gas/vapor environments
🔗 Class II, Division 2, Groups E, F, G & Class III – Dust-ignition proof protection for combustible dusts and fibers
🔗 ATEX II 2 G Ex de IIC T4/T5/T6 Gb / II 2 D Ex tb IIIC T4/T5/T6 Db IP66 – International explosive atmosphere safety standards
🔗 NEMA 3, 4, 4X, 12, 13 & IP66 – Complete protection against corrosion, rain, hose-directed water, and dust
🔗 Download Datasheet
Applications of HLSW-PB20 Non-Metallic Explosion Proof Switch C1D2/C2D2:
🔹 Oil & Gas Refineries
🔹 Chemical Processing Plants
🔹 Petrochemical Facilities
🔹 Industrial Manufacturing & Grain Handling
🔹 Outdoor Hazardous Field Stations
What’s in the Box?
📦 1x HLSW-PB20 Explosion-Proof Control Switch Enclosure Assembly
📦 1x Integrated 3-Position Selector Switch
📦 1x Start/Stop Push Button Unit
📦 1x Mushroom Head Emergency Stop Switch
📦 1x Documentation & Specification Sheet Kit
Ordering & Shipping Details
📦 Lead Time: 3 – 4 weeks
📍 Shipping Terms: Worldwide / Expedited Options
💳 Payment Options: Credit Card, PayPal, Net 30 Terms
Related Products:
🔗 Class 1 Division 2 Explosion-Proof Push Button Stations
🔗 ATEX / IECEx Zone 1 Control Stations & Switches
🔗 Hazardous Location Emergency Stop Control Boxes
FAQs:
What hazardous locations is the HLSW-PB20 certified for?
It is certified for Class I, Div 2 (Groups A-D), Class II, Div 2 (Groups E-G), Class III, as well as ATEX Zone 1/21 (II 2 G Ex de IIC T4/T5/T6 Gb and II 2 D Ex tb IIIC T4/T5/T6 Db).
What is the operating temperature range for this enclosure?
The switch is built for extreme climates and operates reliably in temperatures ranging from -50°C to +60°C.
What are the electrical ratings for this switch?
The unit supports voltages up to 690V AC with a 20A current rating and is rated for 2 HP motors.
Is the unit weather and corrosion-proof?
Yes, it is constructed from high-strength anti-static PA6 polycarbonate, features full silicone gasketing, and meets NEMA 4X and IP66 water/dust resistance standards.
