HES 10305LA 2-Pin Transfer Part

HES 10305LA 2-Pin Transfer Part

The HES 10305LA is a precision 2-pin transfer component designed for direct integration with HES electric strike and access control platforms. This replacement part bridges control signals between strike energization circuits and field devices, making it essential for new installations, system maintenance, and retrofits in commercial access control deployments. The 6VDC operating spec positions it as a drop-in solution for door-control circuits where low-voltage switching reliability and long-term durability are non-negotiable.

Key Features

• 2-Pin Transfer Configuration: Direct pin interface simplifies wiring integration with HES strike platforms. No adapter harness or secondary breakout needed.
• 6VDC Operating Voltage: Standard control voltage across HES access control architectures. Compatible with 6V DC power supplies and system buses.
• Professional-Grade Construction: US-manufactured, rated for high-cycle door-strike duty in commercial and institutional environments.
• HES Platform Compatibility: Works with existing HES electric strike systems without firmware or control-logic modifications.
• Maintenance and Retrofit Ready: Drop-in replacement for worn or failed transfer components; no system reconfiguration required.
• Lightweight Design: 2 lb form factor fits tight door frame and strike enclosure spaces without rework of mounting hardware.

The HES 10305LA is the replacement transfer component for buildings running legacy or current-generation HES electric strike control systems. In field conditions, we see these parts deployed across door-access circuits where the transfer relay must maintain state through repeated energization cycles—parking-garage gates, secure entry doors, mantrap vestibules, and controlled egress on commercial floors. The 2-pin interface means installation is a straightforward terminal swap; no cross-platform hunting or pinout mapping.

This component operates within the broader HES ecosystem, which typically pairs electric strike controllers with networked access panels, motion sensors, and magnetic locks on the same 6VDC buss. The transfer part itself is the field-replaceable element—when a strike begins to chatter or fails to release cleanly, swapping the transfer relay solves the problem in under five minutes. Total cost of ownership stays low because the strike frame, solenoid coil, and latching mechanism are often still serviceable; only the electromechanical transfer relay requires replacement.

Installation context matters: the 10305LA is a wired component, so it must be mounted inside a strike enclosure or control box near the strike itself. Long cable runs between the access-control panel and the door should use twisted-pair or shielded cable to avoid induced noise on the 6VDC signal line. In retrofit scenarios, verify that the existing cable terminations (lugs, connectors) are compatible with the 2-pin interface before ordering; some older HES installations use slightly different terminal blocks. The datasheet provides wiring diagrams and pinout details—cross-reference your system documentation to confirm the transfer part part number before purchase.

The HES 10305LA carries no specific certifications called out in the technical literature, but as a US-manufactured electromechanical relay, it meets standard UL durability and fire-safety classifications for use in commercial access-control circuits. Integrators should verify that the transfer part is listed on the compatible-equipment schedule for the specific HES control panel in use—model numbers like the 10305LA and its variants are field-replaceable across the entire HES product line, reducing inventory complexity. For full-system support and cross-compatibility confirmation, consult the HES technical library or contact a system integrator familiar with your site's HES installation. Learn more about HES strike systems and accessories in the HES catalog.

Marty Allison

Perspective based on aggregated IP Security Depot and affiliated engineering team experience.

We've installed and serviced HES electric strike systems across office buildings, data centers, and secure-access facilities for over a decade, and the 10305LA transfer part is one of those components that doesn't often make a product-selection conversation—until it fails. Once you've had to dispatch a technician because a strike won't release or chatters on energization, you understand why having spare 10305LA units in inventory matters. This is a straightforward electromechanical relay designed for one job: transferring control signals from the access panel to the strike solenoid under repeated cycling. The 2-pin interface is the key differentiator—it's a legacy standard in the HES ecosystem, meaning you can swap it into any compatible HES strike frame without software changes or custom wiring harnesses. On a retrofit in an existing building, that translates to minimal downtime and no need to reprogram access profiles or reset system configurations.

Technical Highlights:

• 2-Pin Connector Standard: Direct integration with HES strike platforms eliminates adapter complexity. We've seen integrators spend hours hunting for pinout compatibility on alternate relay types; the 10305LA removes that friction entirely.
• 6VDC Voltage Class: Matches the standard control-signal voltage across HES access-control bussing. No step-down transformers or voltage regulators needed; power the relay directly from the access panel's 6V output.
• Electromechanical Design: No solid-state electronics to fail or degrade in the presence of door-frame vibration or electromagnetic noise. Mechanical relays are inherently robust in high-cycle duty.
• US Manufacturing: Sourced from domestic production ensures consistent lead times and quality control, particularly important if you need emergency stock for service calls.
• Drop-In Replacement: Terminal block and mounting footprint match existing HES strike enclosures; installation requires only a screwdriver and wire strippers.

Deployment Considerations:

• Verify the specific HES control-panel model number before ordering. While the 10305LA is widely compatible, some legacy systems use slightly different transfer relays. Confirm the part number on your system documentation or datasheet.
• The transfer part must be mounted inside the strike enclosure or access-control box, not in a remote location. Signal degradation occurs over long cable runs on low-voltage 6VDC circuits, so keep the relay physically close to the strike solenoid coil.
• If you're retrofitting an older installation, inspect the existing cable terminations and connector blocks before ordering. Some systems use compression lugs; others use solder-and-shrink. Ensure your termination method matches the 10305LA pinout to avoid field rewiring.
• Stock one spare 10305LA for every 20-30 HES strike-controlled doors in your facility. Transfer relays are low-cost field replacements and easy to install, but supply-chain delays hurt if you don't have a backup on hand during a strike failure.
• In harsh environments (loading docks, outdoor enclosures), consider protective relay covers or surge suppressors on the 6VDC signal lines. Door-frame vibration and electrical noise can shorten electromechanical relay life if not properly suppressed.

The HES 10305LA is the right choice if you're maintaining or expanding an existing HES electric strike infrastructure and need a proven, field-replaceable transfer relay with minimal installation overhead. If you're evaluating HES for a new installation, understanding the role of the transfer part helps justify total cost of ownership across the lifecycle—it's a consumable component with a predictable replacement interval, and stocking spares keeps downtime near zero. For system architects and integrators standardizing on HES platforms, the HES catalog offers the full range of compatible strike frames, controllers, and accessories.