Ideal for use as a circuit breaker trip command relay in protective relay equipment.
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PCB Mounting Relays
Single-pole relay RI-□15T□C (Medium-Capacity Type) RI-D25T1C (Large-Capacity Type)
▼Features
◼ These relays are reliable in a wide range of applications, from micro-current circuits at signal level to power circuits for switching inductive loads.
◼ The large closed circuit capacity and fast operating time make them ideal for tripping circuit breakers.
◼ Plug-in type Bestact relays allow easy rewiring in the control cabinet.
◼ The low power consumption of the coil reduces the temperature rise in the switchboard.
◼ Flow soldering is supported.
◼ These relays are reliable in a wide range of applications, from micro-current circuits at signal level to power circuits for switching inductive loads.
◼ The large closed circuit capacity and fast operating time make them ideal for tripping circuit breakers.
◼ Plug-in type Bestact relays allow easy rewiring in the control cabinet.
◼ The low power consumption of the coil reduces the temperature rise in the switchboard.
◼ Flow soldering is supported.
Ratings and Specifications
Type | RI-B15T1C | RI-B15T2C | RI-C15T1C | RI-D25T1C | ||
Contact Arrangement | 1NO | 1NC | 1NO | |||
Incorporated reed switch: Bestact type | R15 | R25 | ||||
Contact Performance | Rated Insulation Voltage | 250VAC (50/60Hz) | ||||
Making Capacity | 115VDC 20A (L/R≧5ms) Current-Carrying time: 0.5s 240VAC 30A (PF=0.7) | ー | ||||
Breaking Capacity | 115VDC 0.5A (L/R=100ms) 240VAC 1A (PF=0.4) | ー | ||||
Other Contact Performance | Refer to the Bestact Type R25 & R15 specification table | |||||
Characteristics | Operating Time | 5ms or less (+20℃) | 3ms (-20 to +60℃) | 5ms or less (+20℃) | 5ms or less (+20℃) | |
Releasing Time | 3ms or less | 7ms or less | 3ms or less | |||
Vibration Resistance | 98m/s²｛10G｝（20 to 1000Hz） | 98m/s²｛10G｝ （20 to 1000Hz） | ||||
Shock Resistance | Erroneous Operation | 147m/s²｛15G｝ | 147m/s²｛15G｝ | |||
Breakdown | 980m/s²｛100G｝ | 980m/s²｛100G｝ | ||||
Withstand Voltage (50/60Hz) | 2200VAC for 1 minute, (Across Open Contacts: 1000VAC) | 2200VAC for 1 minute, (Across Open Contacts: 500VAC) | ||||
Insulation Resistance | 100MΩ or greater (with 500VDC Megger) | 100MΩ or greater (with 500VDC Megger) | ||||
Ambient Temperature (With no freezing or condensation) | Operating | 20 to +60℃ | -20 to +60℃ | -40 to +60℃ | -40 to +60℃ | |
Storage | -40 to +80℃ | -60 to +80℃ | ||||
Approx. Weight | 35g | 40g | 15g | |||
Note: 1. Values tabulated above are the ones at ambient temperature of +20℃ unless especially described.
Coil Specifications
Type | Contact Arrangement | Rated Voltage ( E ) | Coil Resistance | Rated Power Consumption | Operation Characteristics | |||
Operating Voltage 75%E or less (+20℃ Cold Start) | Releasing Voltage 8.5%E or greater (+20℃ Cold Start) | Continuous Allowable Voltage | ||||||
Medium- Capacity | RI-D25T1C/D5 | 1NO | DC5V | 70Ω | Approx. 0.5W | DC3.5V or less *4 | DC0.425V or greater | DC8.5V |
RI-D25T1C/D12 | DC12V | 400Ω | DC9.0V or less | DC1.02V or greater | DC20.4V | |||
RI-D25T1C/D24 | DC24V | 1500Ω | DC18.0V or less | DC2.04V or greater | DC40.8V | |||
RI-D25T1C/D48 | DC48V | 5500Ω | DC36.0V or less | DC4.08V or greater | DC81.6V | |||
Large- Capacity | RI-B15T1C/D12 | DC12V | 250Ω | Approx. 0.6W | DC9.0V or less | DC1.02V or greater | DC19.2V | |
RI-B15T1C/D24 | DC24V | 1020Ω | DC18.0V or less | DC2.04V or greater | DC38.4V | |||
RI-B15T1C/D48 | DC48V | 4030Ω | DC36.0V or less | DC4.08V or greater | DC76.8V | |||
RI-B15T2C/D12 | DC12V | 130Ω | Approx. 1.1W | DC9.0V or less | DC1.02V or greater | DC14.04V | ||
RI-B15T2C/D24 | DC24V | 465Ω | DC18.0V or less | DC2.04V or greater | DC28.08V | |||
RI-C15T1C/D12 | 1NC | DC12V | 290Ω | Approx. 0.6W | DC9.0V or less | DC1.02V or greater | DC18.0V | |
RI-C15T1C/D24 | DC24V | 1080Ω | DC18.0V or less | DC2.04V or greater | DC36.0V | |||
RI-C15T1C/D48 | DC48V | 3700Ω | DC36.0V or less | DC4.08V or greater | DC72.0V | |||
Note: 1. Coil specifications tabulated above are the ones at ambient temperature of +20℃ unless especially described.
2. Coil resistance can vary ±10％.
3. Continuous allowable voltage is the value that can be applied infrequently within 3 hours.
＊4. This is the specified value to enable hot start at the operating ambient temperature of 60℃ (no contact energized) with the voltage applied to the coil as 4.7±0.25V.
Therefore, the minimum operating voltage only for RI-D25T1C/D5 is 70%E or less.
2. Coil resistance can vary ±10％.
3. Continuous allowable voltage is the value that can be applied infrequently within 3 hours.
＊4. This is the specified value to enable hot start at the operating ambient temperature of 60℃ (no contact energized) with the voltage applied to the coil as 4.7±0.25V.
Therefore, the minimum operating voltage only for RI-D25T1C/D5 is 70%E or less.
Dimensions (㎜)
