Machine Safety Solution – Allen-Bradley 440C-CR30-22BBB | Guardmaster CR30 Series
Where This Product Is Used
The Allen-Bradley 440C-CR30-22BBB Guardmaster CR30 Safety Relay is deployed wherever functional safety is a regulatory or operational requirement. Typical installation environments include:
- Emergency Stop (E-Stop) Circuits — Provides monitored, dual-channel E-stop loop control on robotic cells, CNC machining centers, and press lines, ensuring SIL 2 / PLd compliance.
- Light Curtain & Safety Scanner Integration — Acts as the safety logic interface between OSSD-output safety sensors (SICK, Keyence, Omron) and the machine’s power contactors.
- Safety Gate & Interlocked Guard Monitoring — Monitors tongue-actuated or solenoid-locked safety switches on access doors of automated assembly lines and packaging machinery.
- Two-Hand Control Stations — Enforces simultaneous actuation logic for operator hand-protection on stamping presses and injection molding machines.
- Conveyor & Material Handling Systems — Provides zone-based safety shutdown for roller conveyors, palletizers, and AGV charging stations.
- Collaborative Robot (Cobot) Perimeter Guarding — Interfaces with area scanners to trigger protective stops on UR, FANUC CRX, and ABB GoFa cobots.
Technical Specifications
| Parameter | Value |
|---|---|
| Catalog Number | 440C-CR30-22BBB |
| Series / Family | Guardmaster CR30 |
| Manufacturer | Allen-Bradley (Rockwell Automation) |
| Supply Voltage | 24V DC |
| Safety Output Contacts | 2 NO (Normally Open) Safety Outputs |
| Auxiliary Output Contacts | 2 NC (Normally Closed) Auxiliary Outputs |
| Input Channels | Dual-channel (Category 4 / PLe capable) |
| Safety Integrity Level | SIL 2 (IEC 62061) |
| Performance Level | PLd (ISO 13849-1) |
| Response Time | ≤ 20 ms |
| Enclosure Rating | IP20 (DIN rail mount) |
| Operating Temperature | -10°C to +55°C |
| Certifications | UL, CE, TÜV |
| Mounting | 35 mm DIN Rail |
| Width | 22.5 mm |
Why Engineers Specify This Model
- Compact 22.5 mm footprint — Fits into space-constrained control panels without sacrificing channel count or output capacity.
- Dual-channel architecture — Detects single-fault conditions and prevents dangerous machine restart, meeting Category 3 & 4 requirements per ISO 13849.
- Manual vs. automatic reset flexibility — Configurable reset mode allows engineers to match the relay behavior to the specific risk assessment outcome.
- Cross-fault detection — Internal monitoring detects short circuits between input channels, a critical requirement for high-category safety loops.
- Broad sensor compatibility — Accepts dry-contact, OSSD, and voltage-free inputs, reducing the need for additional interface modules.
- Rockwell ecosystem integration — Pairs natively with Allen-Bradley GuardMaster safety switches, 440F light curtains, and Studio 5000 safety PLCs for unified diagnostics.
Complete System Bill of Materials
For a fully compliant E-stop or guard monitoring safety loop, engineers typically specify the following alongside the 440C-CR30-22BBB:
- Safety Switch / E-Stop Button — e.g., Allen-Bradley 800FM-MT44 (40 mm mushroom head, 2NC)
- Safety Contactors (x2) — e.g., Allen-Bradley 100S-C09EJ14C (safety-rated, mirror contact)
- 24V DC Power Supply — e.g., Allen-Bradley 1606-XLP30E (30W, DIN rail)
- DIN Rail & Terminal Blocks — Phoenix Contact or Weidmüller 4 mm² feed-through terminals
- Reset Pushbutton — e.g., Allen-Bradley 800FP-F3 (illuminated, 22 mm)
- Safety PLC (optional, for complex zones) — e.g., Allen-Bradley 1756-L71S GuardLogix
Compliance & Industry Standards
- ISO 13849-1:2015 — Performance Level d (PLd), Category 3 & 4
- IEC 62061:2021 — Safety Integrity Level 2 (SIL 2)
- IEC 60947-5-1 — Low-voltage switchgear and controlgear
- EN ISO 13850 — Emergency stop function design
- UL 508 — Industrial control equipment (North America)
- CE Marking — Machinery Directive 2006/42/EC compliant
- TÜV Rheinland Certified — Third-party functional safety validation
Quality Assurance & Sourcing
Konmask.com sources the 440C-CR30-22BBB exclusively through verified industrial distribution channels. Every unit offered on this platform:
- Carries original Allen-Bradley / Rockwell Automation factory labeling and holographic authenticity markings.
- Is inspected for physical integrity, correct catalog suffix, and firmware revision prior to dispatch.
- Ships with original manufacturer documentation where available (datasheet, declaration of conformity).
- Is traceable to authorized distributor invoices — available upon request for audit and compliance purposes.
Note: Safety-critical components must be installed and commissioned by qualified personnel in accordance with applicable local regulations and the manufacturer’s installation manual (Publication 440C-UM001).
How to Source This Part
- Add to Cart — Click the purchase button above to place an order directly on Konmask.com.
- Request a Quote — For volume orders (5+ units), OEM projects, or BOM-level procurement, email support@konmask.com with your project details for a competitive quote within 24 hours.
- Lead Time — In-stock units ship within 1–3 business days. Ex-stock or special-order items: 7–15 business days depending on origin warehouse.
- Export & Cross-Border — We support export documentation (commercial invoice, packing list, CO) for international shipments. Contact us for Incoterms options.
- Technical Pre-Sales Support — Our engineering team can verify compatibility with your existing safety architecture before you order. Reach us at +0086 19859288691.
Application-Specific FAQ
Q: Can the 440C-CR30-22BBB be used with a single-channel E-stop button?
A: Yes, but operating in single-channel mode reduces the achievable Performance Level to PLc / Category 2. For PLd / Category 3–4, a dual-channel (2NC contact) E-stop device is required.
Q: Is this relay compatible with OSSD outputs from safety light curtains?
A: Yes. The CR30 accepts OSSD (Output Signal Switching Device) inputs directly, making it compatible with most major safety sensor brands including SICK, Keyence, Banner, and Omron.
Q: What is the difference between automatic and manual reset modes?
A: In automatic reset mode, the relay re-energizes as soon as the safety input is restored. In manual reset mode, a separate reset signal (pushbutton) is required after the safety input is restored — this is the required mode for most guarding applications per ISO 13849.
Q: Can multiple 440C-CR30-22BBB relays be cascaded for zone control?
A: Yes. The auxiliary NC output of one relay can be wired into the input of a downstream relay to create sequential zone shutdown logic without a safety PLC.
Q: What is the maximum cable length for the safety input loop?
A: Rockwell recommends keeping safety input wiring under 50 m in standard industrial environments. For longer runs, use shielded cable and consult the installation manual for capacitance limits.
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