- Part number
- RUMC21B7
- UL
- CSA
- EAC
Harmony Electromechanical RelaysSchneider Electric RUMC21B7 Harmony RUM 10A 2CO 24V AC Universal Plug-In Relay
Harmony RUM 10A 2CO universal plug-in relay, 24V AC coil, lockable test button, IP40, AgNi contacts.
Description
About the RUMC21B7
About the RUMC21B7
The Schneider Electric RUMC21B7 is a Harmony RUM series universal plug-in relay with 2 C/O contacts rated 10 A and a 24 V AC 50/60 Hz control coil. A lockable test button allows manual actuation during commissioning, and cylindrical pin contacts made of AgNi carry up to 250 V AC or 28 V DC.
Certifications & Standards
- CSA
- EAC
- UL
- IEC 61810-1
- UL 508
- CSA C22.2 No 14
Selection Notes
The RUMC21B7's cylindrical pins, rather than flat faston-type blades, are what qualify it as a universal-footprint relay: it drops into sockets built around the round-pin standard as well as octal bases. At 10 A/250 V AC on both C/O contacts, it switches contactor coils and small motor loads directly from the 24 V AC control loop. The lockable test button covers manual trip/reset during panel checkout without pulling the relay from its socket. B10d = 100,000 at up to 1200 cycles/hour under load sizes it for control-duty switching rather than continuous high-frequency cycling.
Specification
Full specification
Main 9
| Range of Product | Harmony Electromechanical Relays |
|---|---|
| Series name | RUM series |
| Product or Component Type | Plug-in relay |
| Relay Type | Universal relay |
| Contacts type and composition | 2 C/O |
| Status LED | Without |
| Control Type | Lockable test button |
| [Uc] control circuit voltage | 24 V AC 50/60 Hz |
| [Ithe] conventional enclosed thermal current | 10 A -40…131 °F (-40…55 °C) |
Complementary 27
| [Uimp] rated impulse withstand voltage | 4 kV 1.2/50 µs) |
|---|---|
| Minimum switching capacity | 170 mW 10 mA, 17 V |
| Electrical durability | 100000 cycles resistive |
| Average coil consumption in VA | 3 60 Hz |
| Operating time | 20 ms at nominal voltage |
| Rated operational voltage limits | 19.2...26.4 V AC |
| [Ui] rated insulation voltage | 250 V IEC, 300 V CSA, 300 V UL |
| Reset time | 20 ms at nominal voltage |
| Maximum switching voltage | 250 V IEC |
| Drop-out voltage threshold | >= 0.15 Uc AC |
| [Ie] rated operational current | 10 A at 277 V AC conforming to UL, 10 A at 30 V DC conforming to UL, 10 A at 30 V DC conforming to CSA, 5 A at 250 V AC (NC) conforming to IEC, 5 A at 28 V DC (NC) conforming to IEC, 10 A at 250 V AC (NO) conforming to IEC, 10 A at 28 V DC (NO) conforming to IEC, 10 A at 277 V AC conforming to CSA |
| Average resistance | 72 Ohm 20 °C +/- 15 % |
| Maximum switching capacity | 2500 VA/280 W |
| Mechanical durability | 5000000 cycles |
| Safety reliability data | B10d = 100000 |
| Operating rate | <= 18000 cycles/hour no-load, <= 1200 cycles/hour under load |
| Utilisation coefficient | 20 % |
| Compatibility code | RUM |
| Dielectric strength | 1500 V AC between contacts with micro disconnection, 2500 V AC between coil and contact with reinforced, 2000 V AC between poles with basic |
| Protection category | RT I |
| Pollution degree | 3 |
| Operating position | Any position |
| Device presentation | Complete product |
| Contacts material | AgNi |
| Shape of pin | Cylindrical |
| Net Weight | 0.190 lb(US) (0.086 kg) |
| Load current | 10 A 250 V AC, 10 A 28 V DC |
Environment 7
| Ambient air temperature for operation | -40…131 °F (-40…55 °C) |
|---|---|
| IP degree of protection | IP40 |
| Standards | CSA C22.2 No 14, UL 508, IEC 61810-1 |
| Product Certifications | CSA, EAC, UL |
| Ambient Air Temperature for Storage | -40…185 °F (-40…85 °C) |
| Vibration resistance | 3 gn +/- 1 mm 10…150 Hz)5 cycles in operation, 4 gn +/- 1 mm 10…150 Hz)5 cycles not operating |
| Shock resistance | 10 gn 11 ms) in operation IEC 60068-2-27, 10 gn 11 ms) not operating IEC 60068-2-27 |
Show all 56 specifications ↓ Show less ↑13 more values in Identification, Contractual warranty, Logistics.
Identification 7
| Part number | RUMC21B7 |
|---|---|
| Brand | Schneider Electric |
| Condition | New, factory sealed |
| Source | Schneider Electric and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 3606480626579 |
Contractual warranty 1
| Warranty (in months) | 18 |
|---|
Logistics 5
| Country of origin | CN |
|---|---|
| Shipping weight | 0.086 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 30 Oct 2026
Documents
Documents for RUMC21B7
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Certifications
Certifications and standards
- UL
- CSA
- EAC
- CSA C22.2 No 14
- UL 508
- IEC 61810-1
Quick answers
Questions about the RUMC21B7
What is the rated current of RUMC21B7?
The rated current of RUMC21B7 is 10 A.
Which supply voltage is RUMC21B7 rated for?
The rated operational voltage of RUMC21B7 is 24 V AC.
What is the HS code of RUMC21B7 for customs?
The tariff (HS) code on file for RUMC21B7 is 85364900.
What is the EAN of RUMC21B7?
The EAN (GTIN) of RUMC21B7 is 3606480626579.
Where does RUMC21B7 ship from, and how fast?
RUMC21B7 ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
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Series
Schneider Electric Harmony Electromechanical Relays
- Brand
- Schneider Electric
- Series
- Harmony Electromechanical Relays
