Allen-Bradley SK-H1-GDB1-F10E – Guard Door Interlock Assembly for Safe Machine Access

The Allen‑Bradley SK-H1-GDB1-F10E is positioned for machines where you need reliable, hardwired guard-door interlocking—think packaging cells, palletizers, CNC enclosures, or small robotic cells. From my experience, setups like this are chosen when maintenance teams want a compact lock body with positive-opening safety contacts and a straightforward wiring scheme into a safety relay or safety controller. It keeps operators out of hazardous zones while the machine coasts to a stop, and it does so without getting in the way of daily production.

“We swapped to this interlock on a tray-loader. Door vibration used to cause nuisance trips—since the changeover, it’s been stable and easier to align.” — Maintenance lead at a food packaging plant

Company’s Order Placement Process and Guarantees

• Warranty period: 365 days
• Delivery time: 1 week for in‑stock; no more than one month at the latest
• Payment: 50% advance payment; full payment prior to delivery
• Express delivery: FedEx, UPS, DHL

Key Features

• Hardwired safety contacts – Typically supplied with dual-channel, positive‑opening safety contacts for Category 3/4 architectures.
• Compact lock body – Fits tight frames and light‑to‑medium duty guard doors; you might notice alignment is simpler than with larger housings.
• Tamper‑resistant actuator – Designed to reduce defeat attempts in day‑to‑day use; ideal for hinged or sliding doors.
• 24 VDC safety circuit – Standard control voltage for integration with common safety relays and GuardLogix systems.
• Rugged, industrial IP rating – Typically sealed against dust and washdown splashes, helping it survive cleaning cycles.
• Status indication – In many cases, local indicator(s) make commissioning and troubleshooting faster on the line.
• Flexible mounting – Frame‑mounted body with door‑mounted actuator; works well with aluminum profiles or steel guards.

Technical Specifications

Related or Supporting Products

• 440G-LZ Guard Locking Switch – RFID‑coded option with high coding level; variants available for CIP Safety over EtherNet/IP.
• 440K Tongue Interlock – Mechanical alternative for lighter doors; simpler actuation, no guard locking.
• 440R-D22R2 Safety Relay – Dual‑channel monitoring relay to achieve up to PL e/Cat. 4 with hardwired contacts.
• 1734-IB8S POINT Guard I/O – Distributed safety inputs for modular machines; pairs well when moving to safety over CIP.
• 440E Lifeline Rope Pull Switch – Complement on long conveyors; provides emergency stop along the guard run.

Installation & Maintenance

• Mounting environment – Rigid guard frame with minimal flex; allow clearance so the actuator enters straight without using the lock as a door stop.
• Ventilation & enclosure – For washdown or dusty lines, shield the device from direct high‑pressure spray; keep cable glands downward where possible.
• Wiring – 24 VDC safety loop, dual channels to a safety relay or safety controller; segregate from high‑noise motor cables and bond shields at one end.
• Safety checks – Always lockout/tagout before adjustments; validate stop category and interlock function during commissioning and after changeovers.
• Routine maintenance – Inspect alignment and latch wear quarterly; clean debris from the entry slot; verify contact operation during scheduled safety tests.

Quality & Certifications

• Typically compliant with CE and cULus; models are commonly assessed by TÜV for use up to PL e / Cat. 4 when paired with suitable safety logic.
• RoHS‑aligned construction in most cases; materials selected for industrial durability.
• Manufacturer warranty: usually 12 months from shipment for Allen‑Bradley components.

If you’re matching an existing line, a quick photo of your current device/actuator and the wiring notes speeds up cross‑check. One thing I appreciate is how predictable these wire into standard 440R safety relays—keeps commissioning time down.