TELEFRANK 013501-171-27 Replacement for Safety Interlock Series

Product Overview

TELEFRANK 013501-171-27 Replacement for Safety Interlock Series: Smooth Transition, Zero Compromise

When a legacy safety interlock module reaches end-of-life or fails unexpectedly on a production line, every minute of unplanned downtime carries real operational and financial risk. The TELEFRANK 013501-171-27 Safety Interlock Module is a proven, field-validated replacement solution for industrial guard door control applications across manufacturing, packaging, automotive assembly, and process industries. Engineered to deliver a smooth, low-disruption migration from older interlock configurations, this module preserves existing wiring topologies, control cabinet footprints, and safety logic without requiring a full system redesign.

TOPNLMS maintains verified stock of the TELEFRANK 013501-171-27, with each unit individually tested prior to dispatch. Whether you are replacing a failed unit on an emergency basis or proactively upgrading aging safety infrastructure, this module ships promptly from our Xiamen facility with full documentation and a 12-month warranty.

Compatibility Comparison Table

Seamless Upgrade Solutions

A successful safety interlock replacement rarely involves a single component in isolation. In practice, the TELEFRANK 013501-171-27 is most commonly deployed alongside a broader set of safety and control components that must be evaluated for compatibility during the migration process.

On the safety relay side, the 013501-171-27 is frequently paired with PILZ PNOZ X2.8P or PILZ PNOZ m B0 safety relay modules, which monitor the dual-channel output of the interlock and provide the safety-rated feedback loop required by machine safety standards. Where the existing installation uses a Siemens 3SK1111-1AB30 safety relay or a Siemens SIRIUS 3RK3 modular safety system, the 013501-171-27 integrates directly into the monitored safety circuit without modification to the relay’s input wiring.

For facilities running a Siemens S7-300 or S7-1500 safety PLC with a Siemens ET 200SP F-DI fail-safe digital input module, the interlock’s output contacts connect to the F-DI channel pairs in the standard dual-channel configuration. No changes to the PLC program structure are required when the replacement module maintains the same contact arrangement as the original. Similarly, installations using an Allen-Bradley GuardLogix 5580 controller with 1791DS safety I/O modules will find the 013501-171-27 compatible with existing safety task logic, provided the actuator key type and NC/NO contact configuration are verified prior to commissioning.

On the power supply side, the interlock module draws from the 24 VDC safety circuit rail, typically fed by a PHOENIX CONTACT QUINT-PS/1AC/24DC/10 or equivalent safety-rated power supply. If the existing power supply is being replaced concurrently, ensure the new unit provides sufficient current headroom for all safety devices on the rail. Terminal block connections are typically made via WAGO 2-conductor 221 Series or Phoenix Contact PTFIX distribution blocks, both of which are compatible with the 013501-171-27’s terminal pitch.

Where the guard door system is part of a larger safety network using AS-Interface Safety at Work (ASIsafe) or PROFIsafe over PROFINET, the hardwired 013501-171-27 can serve as the physical interlock element feeding into an ASIsafe monitor module or a Siemens DP/AS-i F-Link gateway, preserving the fieldbus architecture of the broader safety system.

Retrofit Guidance FAQ

Q1: Can I replace my existing TELEFRANK interlock module with the 013501-171-27 without rewiring?

In most cases, yes. The 013501-171-27 is designed as a direct replacement within the TELEFRANK Interlock Series. The terminal block layout and actuator key interface are consistent across the series. However, you should verify the actuator key type (tongue, T-handle, or coded key) and the contact configuration (NC/NO arrangement) against your existing installation before proceeding. If the original module used a different actuator variant, a compatible actuator key may need to be sourced separately.

Q2: Is the 013501-171-27 compatible with my existing safety PLC or safety relay?

Yes. The module outputs standard hardwired safety contacts that are compatible with any safety relay or fail-safe PLC input module that accepts dual-channel NC contact inputs. This includes Siemens SIRIUS safety relays, PILZ PNOZ series, Omron G9SX, and Allen-Bradley MSR series. No changes to PLC safety programs or relay configurations are required, provided the contact arrangement matches the original module.

Q3: What physical space and mounting requirements should I check before installation?

The 013501-171-27 is DIN-rail mountable and fits standard 35 mm DIN rails within a control cabinet. Verify the available rail space and cabinet depth against the module’s dimensional specifications. If the legacy module was panel-mounted rather than DIN-rail mounted, a DIN-rail adapter bracket may be required. Ensure adequate clearance for cable routing and actuator key access at the guard door.

Q4: How do I confirm the replacement is functioning correctly after installation?

After installation, perform a full functional safety test: open and close the guard door to verify the interlock actuates and releases correctly, confirm the safety relay or F-DI module registers the correct channel states, and validate the safety function by triggering the guard door open condition and confirming the machine enters the safe state as designed. Document the test results as part of your machine safety validation record. TOPNLMS can provide technical support during commissioning if required.

Warranty Assurance

Every TELEFRANK 013501-171-27 unit supplied by TOPNLMS is covered by a 12-month warranty from the date of shipment. Prior to dispatch, each module undergoes a functional verification test to confirm contact integrity, actuator engagement, and electrical continuity. Units that do not meet our quality standards are quarantined and not shipped.

In the event of a warranty claim, TOPNLMS provides a straightforward replacement process: contact our technical team with the order reference and a description of the fault, and we will arrange a replacement unit or issue a credit note within the agreed service window. Our average response time for warranty inquiries is within one business day.

For customers managing planned maintenance schedules or building safety spare parts inventories, TOPNLMS offers volume purchasing options and can reserve stock against future call-off orders. This is particularly valuable for facilities operating multiple guard door stations with the same interlock model, where a single failed unit can halt an entire production cell.

We ship globally from Xiamen, China, with express courier options available for urgent replacement requirements. Export documentation, including commercial invoices and packing lists, is prepared to support customs clearance in major industrial markets.