Panduit PSL-1A Group Lockout Hasp

The Panduit PSL-1A provides a robust solution for group lockout/tagout applications where multiple workers need simultaneous isolation from energized equipment. This zinc-plated steel hasp accommodates up to six padlocks, ensuring that no single worker can re-energize machinery until all team members have removed their personal locks. The 1" jaw opening fits most circuit breakers, valve handles, and disconnect switches, while the high-visibility red vinyl coating prevents corrosion and improves visibility during safety audits. Supplied in 12-unit packages, the PSL-1A is engineered for facilities managing multi-person maintenance, contractor coordination, and confined-space entry procedures where regulatory compliance and worker safety are non-negotiable.

Key Features

Six-lock capacity supports group lockout scenarios with multiple authorized workers

Zinc-plated steel construction with vinyl coating resists corrosion in industrial environments

1" (25.4 mm) jaw diameter fits standard circuit breakers, valve stems, and disconnect handles

4.52" × 1.62" overall dimensions provide secure engagement without interference

High-visibility red finish aids in quick identification during safety walk-throughs

12-unit packaging supports fleet deployment across multiple maintenance teams or facilities

The PSL-1A's zinc-plated steel body delivers the mechanical strength required for industrial lockout applications, with a vinyl overcoat that protects against moisture, chemical splash, and UV degradation. The 1" jaw opening is sized for compatibility with the most common lockout points—molded-case circuit breaker handles up to 600A frame, butterfly valve levers, and rotary disconnect operators—while the 4.52" length provides clearance for oversized padlock shackles and multi-lock stacking. The red vinyl coating is applied after zinc plating, creating a dual-layer barrier that extends service life in corrosive atmospheres (chemical processing, wastewater treatment, marine terminals) where bare steel or powder-coated hasps degrade rapidly. Each hasp includes recessed lock holes that prevent shackle binding when all six positions are occupied, a common failure mode in lower-cost designs where padlock interference can prevent full insertion.

Group lockout procedures are mandatory under OSHA 1910.147 whenever servicing or maintenance is performed by more than one employee, or when a single task requires multiple energy isolation points. The PSL-1A addresses the coordination challenge inherent in these scenarios: a single hasp installed on a disconnect switch or valve allows each team member to apply their personal lock, ensuring that re-energization cannot occur until the last worker completes their task and removes their lock. This is particularly critical in multi-contractor environments (data center cutovers, pharmaceutical cleanroom installations, petrochemical turnarounds) where subcontractors, facility staff, and equipment vendors must coordinate on shared energy sources. The high-visibility red finish supports the color-coding schemes required by NFPA 70E-2021 §120.5, which mandates that LOTO devices be "standardized within the facility in at least color, shape, or size"—the PSL-1A's consistent red vinyl allows safety managers to designate red hasps for electrical isolation, differentiating them from blue (compressed air), yellow (hydraulic), or green (process steam) locks used elsewhere in the facility.

The PSL-1A ships in 12-unit packages (48 per carton), a packaging strategy aligned with facility-wide LOTO program rollouts where maintenance supervisors stock hasps at each electrical room, mechanical equipment space, or process skid. Facilities implementing group lockout for the first time—often driven by insurance audits, OSHA citations, or post-incident corrective actions—typically deploy 20–40 hasps initially to cover primary isolation points (main switchgear, boiler feeds, HVAC air handlers, production line disconnects), then expand coverage as workers identify secondary lockout points during job-hazard analyses. The competitive cross-references (Brady 65375, Master Lock 420, Accuform 44-800) indicate direct substitutability in existing programs, though the Panduit hasp's recessed lock holes and dual-layer finish differentiate it in high-cycle applications where daily lockout/test/release sequences accelerate wear on stamped-steel alternatives.