DIN rail socket and other accessories are optional
Available
The TE Connectivity RT114024, from the SCHRACK RT1 series, is a general-purpose electromechanical power relay with a 24 V DC coil and one changeover contact (1 CO, SPDT / 1 Form C). Its magnetic system is monostable: when de-energised, common terminal 11 is connected to normally closed contact 12 (NC); energising the coil switches it to normally open contact 14 (NO), and it returns to its rest position when the coil is de-energised.
The contacts are AgNi 90/10, with a rated current of 12 A and a rated contact voltage of 250 V AC. Maximum switching voltage is 400 V AC and maximum breaking capacity is 3,000 VA. For making current, the manufacturer specifies up to 25 A for a maximum of 4 s at a 10 % duty factor.
Part number 1-1393239-3 is the standard 12 A version with a 3.5 mm terminal pinning and an RTII (flux-proof) environmental protection category. It uses PCB-THT terminals, is suitable for wave soldering and provides reinforced insulation between the coil and contacts. Applications identified by TE for the RT1 series include timers, boiler control, garage door control and interface modules.
The standard version also supports plug-in mounting. When the relay is socket-mounted, TE states that derating of the specified contact ratings may apply compared with direct wiring, so the limits applicable to the complete mounting arrangement must be observed.
| Brand | TE Connectivity |
| Model | RT114024 |
| Manufacturer part number | 1-1393239-3 |
| Series | SCHRACK RT1 |
| Type | General-purpose electromechanical power relay |
| Magnetic system | Monostable |
| Rated coil voltage | 24 V DC |
| Coil resistance at 23 °C | 1,440 Ω ± 10 % |
| Rated coil power | 400 mW |
| Coil operate voltage at 23 °C | 16.8 V DC, without pre-energisation |
| Coil release voltage at 23 °C | 2.4 V DC, without pre-energisation |
| Coil insulation system | UL Class F |
| Contact configuration | 1 changeover contact (SPDT / 1 Form C) |
| Contact material | AgNi 90/10 |
| Rated contact current | 12 A |
| Rated contact voltage | 250 V AC |
| Maximum switching voltage | 400 V AC |
| Maximum breaking capacity | 3,000 VA |
| Limiting making current | 25 A; max. 4 s, 10 % duty factor |
| Initial dielectric strength, coil-to-contacts | 5,000 V RMS |
| Initial dielectric strength between open contacts | 1,000 V RMS |
| Clearance / creepage distance between coil and contacts | ≥ 10 mm / ≥ 10 mm |
| Operate / release time | 8 ms / 6 ms, maximum values |
| Mechanical endurance | > 30,000,000 operations |
| Mounting | PCB-THT or plug-in |
| Coil terminals | A1 and A2 |
| Contact terminals | 12 (NC), 11 (common) and 14 (NO) |
| Total number of terminals | 5 |
| Terminal pinning | 3.5 mm |
| Soldering process | Wave soldering |
| Environmental protection category | RTII, flux proof |
| Operating temperature | -40 °C to +85 °C |
| Dimensions | 29 × 12.7 × 15.7 mm |
| Weight | 14 g |
