Overview
The Hubbell HBLDS10 Circuit-Lock Disconnect Switch is a professional-grade, unfused disconnect designed for safe circuit isolation in industrial and commercial motor control applications. This 3-pole, 100 amp, 600 VAC non-fused disconnect switch features a lockable 2-position lever handle, screw terminal connections, and external fully adjustable mounting feet. The HBLDS10 is UL listed as a manual motor controller and also “suitable as a motor disconnect” and meets NEC section 430.102(B) requirements. The composite non-metallic enclosure provides superior durability for harsh and wet environments.
Key Features
- Constructed from corrosion and impact resistant UV stabilized non-metallic material with IP69k and Type 4X, 12K water ingress protection
- Highly visible red handle which meets OSHA Lockout/Tagout capabilities with reversible interior that accommodates top or bottom conduit opening
- Laser marked covers ensure ratings are permanently marked
- Certified by NSF for hygiene in food processing applications
- Certified for current interrupting at full rated current and voltage
- Compact footprint with external adjustable feet for floor or wall mounting
Technical Specifications
- Amperage: 100A
- Voltage Rating: 600VAC
- Poles: 3
- Switch Type: Non-Fused Unfused
- Operating Temperature Range: -40°C to 75°C
- Dielectric Voltage: Withstands 3000V AC minimum
- Flammability Rating: UL94-5VA and V0
- Enclosure: NEMA 4X, IP69K, non-metallic composite
- Rated for 60,000 W load with 6,000 operating cycles
- Handle: Lockable 2-position lever
- Terminals: Screw connections
- Mounting: External fully adjustable feet
Typical Applications
The HBLDS10 is ideal for motor control disconnect requirements in manufacturing, food processing, water treatment, chemical processing, and other industrial environments where:
- Frequent washdown, high-pressure spray, and caustic cleaning agents are present
- UV exposure and corrosive atmospheres demand robust isolation
- NSF hygiene certification is required (food and beverage)
- OSHA lockout/tagout compliance and worker safety are critical
- Reliable 50 HP motor circuits require safe disconnect capability
Compatibility & Replacements
Compatible With
- Motor control circuits rated 600VAC, 3-phase
- Standard conduit and terminal box installations
- Industrial motor loads up to 50 HP
- Standard electrical enclosure systems with NEMA 4X requirements
Replaces / Drop-In Replacement For
- Verify compatibility with your system integrator before ordering for specific legacy model replacements.
Works With
- Motor control centers (MCCs)
- Variable frequency drives (VFDs)
- Standard 600VAC 3-phase power distribution systems
- OSHA lockout/tagout (LOTO) procedures and safety protocols










