RUMC21F7 Schneider Electric – Harmony (Zelio) RUM Universal Plug-In Relay, 2 C/O, 10 A, 120 V AC Coil, Octal Pins
The Schneider Electric RUMC21F7 is a universal plug-in relay from the Harmony RUM range, formerly sold as Zelio Relay RUM. It has two changeover (DPDT) contacts rated 10 A, a 120 V AC 50/60 Hz coil and cylindrical octal pins. It also has a lockable test button and a transparent cover, so the contact status can be checked at a glance. It is widely used for hard-wired control logic, interfacing PLC outputs to higher loads and replacing worn “ice cube” relays in existing panels.
Reading the RUMC21F7 Reference
| Code | Meaning |
|---|---|
| RUM | Harmony universal relay |
| C | Cylindrical (octal) pins |
| 2 | 2 changeover (C/O) contacts |
| 1 | Lockable test button, without LED |
| F7 | 120 V AC 50/60 Hz coil |
Contact Ratings
| Standard | Rating |
|---|---|
| IEC, NO contact | 10 A at 250 V AC / 10 A at 28 V DC |
| IEC, NC contact | 5 A at 250 V AC / 5 A at 28 V DC |
| UL / CSA | 10 A at 277 V AC / 10 A at 30 V DC |
- Conventional enclosed thermal current [Ithe]: 10 A at −40 to 55 °C
- Maximum switching capacity: 2,500 VA / 280 W
- Minimum switching capacity: 170 mW (10 mA, 17 V)
- Maximum switching voltage: 250 V (IEC)
- Contact material: AgNi
Insulation and Durability
- Rated insulation voltage [Ui]: 250 V (IEC); 300 V (UL, CSA)
- Rated impulse withstand voltage [Uimp]: 4 kV (1.2/50 µs)
- Mechanical durability: 5,000,000 cycles
- Electrical durability: 100,000 cycles (resistive load)
- Operating rate: ≤ 18,000 cycles/h no load; ≤ 1,200 cycles/h on load
Built-In Operator Features
- Lockable test button for manual testing of the contacts during commissioning
- Mechanical status indicator
- Transparent cover for visual inspection
- IP40 protection
Sockets and Related References
The relay plugs into the Harmony RUM octal sockets for 2 C/O relays, such as the RUZC2M and RUZSC2M. Other versions of the same relay include:
- RUMC22F7: with LED
- RUMC31F7: 3 C/O version
- RUMC21BD: 24 V DC coil
- RUMC21P7: 230 V AC coil
Buy the RUMC21F7 Schneider Electric from Atlantech Drives
Atlantech Drives supplies genuine Schneider Electric RUMC21F7 Harmony RUM relays and the matching sockets, with fast worldwide shipping. Schneider supplies this relay in lots of 10, ideal for maintenance stock and panel production. Our senior commercial team will confirm the right coil voltage, contacts and socket for your application and give you a competitive quote quickly.
