This page covers two Phoenix Contact components of different types: P/N 2961105 is a miniature plug-in power relay for general control, and P/N 2981033 (PSR-URM4) is a contact extension module for safety relays, used to add output contacts to a safety circuit. Both mount on DIN rail, and the 5 mm ultra-slim 2961105 can be lined up densely in a control cabinet.
Model specifications
| Specification | P/N 2961105 (power relay) | P/N 2981033 (PSR-URM4 safety extension) |
|---|---|---|
| Product type | Miniature plug-in power relay | Safety relay contact extension module |
| Input voltage | 24 V DC (coil resistance 3.39 kΩ) | 24 V AC/DC (20.4–28.8 V) |
| Contact arrangement | 1 Form C (1 NO + 1 NC) | 5 NO + 1 NC + 1 feedback circuit |
| NO contact rating | 6 A @ 250 V AC/DC | 6 A @ 250 V AC/DC |
| NC contact rating | 6 A | 3 A @ 250 V AC/DC |
| Contact material | AgSnO₂ (silver tin oxide) | AgSnO₂ (partly Au-plated) |
| Width | 5 mm (ultra-slim) | 22.5 mm |
| Mounting | DIN rail | DIN rail |
What the 5 mm width of the 2961105 means in practice
A 5 mm width lets you fit 20 relays on every 100 mm of DIN rail, making very efficient use of cabinet space. It suits applications with many signal switching points, such as PLC I/O expansion boards and multi-channel solenoid valve control. The plug-in design lets the relay be pulled out and replaced without removing the wiring.
2981033 PSR-URM4: extending safety circuit contacts
The PSR-URM4 is not a standalone safety relay; it is a contact extension module used with a Phoenix Contact PSR series safety relay base module. When a safety circuit must drive several loads (for example, de-energizing multiple contactors or indicator lights at once) and the base module does not have enough contacts, the PSR-URM4 adds 5 NO + 1 NC contact outputs while meeting the contact isolation requirements of the safety function.
Trademarks: Phoenix Contact and the model names on this page are trademarks or model names of their owner, used here only to identify the products. JIAHON is not the authorized distributor of Phoenix Contact in Taiwan.
Request a quote
Send the full model numbers and quantities, or ask us to confirm specifications. Request a quote →