Allen-Bradley 440R-W23218 Guardmaster Safety Relay Input Module
$123.00
$320.00
Description
Allen-Bradley 440R-W23218 Guardmaster Safety Relay Input Module
Configured for safety input processing in modular Guardmaster safety relay systems, the Allen-Bradley 440R-W23218 (440R-W23218 input module) provides direct 24 VDC electrical interfacing.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 440R-W23218 |
| Brand | Allen-Bradley |
| Product Line | Guardmaster Safety Relays |
| Product Type | Input Module |
| Weight | 0.75 lb |
| Power Consumption | 3 W rated |
| Rated Voltage | 24 VDC |
| Auxiliary Outputs | 2 PNP solid-state outputs |
| Input Functions | 1 NC / 2 NC / 3 NC / safety mat / light curtain input |
| Terminal Type | Removable terminal block |
| Mounting Type | DIN-rail |
| Minimum Wire Size | 0.20 mm2 |
| Maximum Wire Size | 2.5 mm2 |
| Terminal IP Protection | IP20 |
| Housing IP Protection | IP40 |
| Safety Rating | Category 4 rated |
Guardmaster Safety Relay Interface Characteristics
The 440R-W23218 provides input interfacing for modular safety relay configurations using 24 VDC supply power.
Input configurations include NC contact arrangements, safety mats, and light curtain devices for safety circuit monitoring.
Two PNP solid-state auxiliary outputs provide discrete status signaling to associated control equipment.
The removable terminal block supports field wiring within the specified 0.20 mm2 to 2.5 mm2 conductor range.
DIN-rail mounting provides mechanical installation on standard control cabinet rail assemblies.
The supplied material identifies MSR320P and Category 4 operation within the associated safety relay configuration.
Frequently Asked Questions
Q: What supply voltage does the 440R-W23218 require?
A: The specified rated supply voltage is 24 VDC, with a rated power requirement of 3 W.
Q: What auxiliary output configuration is provided?
A: The module provides two PNP solid-state auxiliary outputs for discrete auxiliary signaling.
Q: What wiring and mounting provisions are specified?
A: The module uses removable terminals, DIN-rail mounting, and supports 0.20 mm2 to 2.5 mm2 conductors.
Field Installation Guidelines
Install the module on the specified DIN rail with adequate mechanical retention before connecting field conductors.
Verify the 24 VDC supply polarity and protective bonding arrangement before applying operating power.
Use conductors within the specified 0.20 mm2 to 2.5 mm2 range for removable terminal connections.
Route safety input wiring separately from high-current switching circuits, motor conductors, and high-noise power cables.
Maintain consistent terminal identification throughout the safety circuit to prevent cross-wiring during commissioning.
Connect shielded signal cables according to the applicable system wiring specification where shielding is required.
Terminate cable shields using the established cabinet grounding method without creating unintended signal return paths.
Confirm the required NC contact, safety mat, or light curtain circuit before energizing the safety relay system.
Verify auxiliary PNP output wiring against the receiving input circuit before commissioning connected control equipment.
Inspect terminal seating and mechanical retention after completing all field wiring operations.
Perform functional safety testing after installation and verify each configured safety input response independently.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
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