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Specification & Description
| Specification | Description |
|---|---|
| Part Number | PLC-RSC- 24UC/21-21 |
| Alternative Part Number | PLCRSC24UC2121 |
| Manufacturer | Phoenix Contact |
| Connection Data | Conductor cross-section flexible: 0.14 mm² - 2.5 mm²; AWG 26 - 14 |
| Connection Method | Screw connection |
| Stripping Length | 8 mm |
| Screw Thread | M3 |
| Nominal Input Voltage | 24 V AC/DC |
| Typical Input Current | 18 mA at 24 V AC/DC |
| Typical Response Time | 3 ms - 15 ms |
| Typical Release Time | 3 ms - 15 ms |
| Contact Type | 2 PDT (Double Pole, Double Throw) |
| Maximum Switching Voltage | 250 V AC/DC |
| Minimum Switching Voltage | 12 V AC/DC |
| Limiting Continuous Current | 6 A |
| Mechanical Service Life | 3 x 10^7 cycles |
| Operating Mode | 100% operating factor |
| Degree of Protection | RT III (Relay), IP20 (Relay base) |
| Ambient Operating Temperature | -40 °C to 60 °C |
| Ambient Storage Temperature | -40 °C to 85 °C |
| Mounting Position | Any |
| Assembly Instructions | In rows with zero spacing |
| Rated Surge Voltage | 6 kV |
| Insulation | Safe isolation between control side and contact side, Pollution degree 2, Overvoltage category III |
| Flammability Rating | UL 94 V0 |
| Environmental Product Compliance | REACh SVHC, China RoHS, Environmentally Friendly Use Period = 50 years |
The Phoenix Contact PLC-RSC- 24UC/21-21 is a versatile and reliable relay module designed for a wide range of industrial applications. This compact and efficient component is engineered to facilitate seamless integration into various control systems, offering a practical solution for switching operations in automation tasks.
Constructed with a robust design, the relay module features a nominal input voltage of 24 V AC/DC, making it suitable for standardised control voltages. It boasts a quick response and release time, ensuring swift and precise control of connected devices. The module is equipped with a bridge rectifier protective circuit and an operating voltage display via a yellow LED, enhancing its functionality and ease of use.
The contact side of the module includes 2 PDT (double pole, double throw) contacts with a single contact switch type, made from durable AgNi material. It can handle a maximum switching voltage of 250 V AC/DC, with a minimum switching voltage of 5 V AC/DC at 10 mA. The module is capable of a limiting continuous current of 6 A and offers a substantial interrupting rating for ohmic loads.
Designed for flexibility, the PLC-RSC- 24UC/21-21 can be mounted in any position and allows for zero spacing between modules when installed in rows. The screw connection method for the coil side ensures secure and reliable wiring, with a conductor cross-section range that accommodates various wire sizes.
This relay module is not only functional but also adheres to high safety and quality standards, including a flammability rating according to UL 94 V0 for the housing and an operating temperature range suitable for challenging industrial environments.
Ideal for electrical engineers and maintenance professionals, the Phoenix Contact PLC-RSC- 24UC/21-21 relay module is a dependable choice for enhancing control system performance and reliability in industrial settings.
Commonly Asked Questions
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Frequently Asked Questions
What is the input voltage range for the PLC-RSC- 24UC/21-21 relay module?
The input voltage range for the relay module is 24 V AC/DC, which allows for flexible integration into various control voltage systems.
Can this relay module be used in a wide range of ambient temperatures?
Yes, the relay module is designed to operate within an ambient temperature range of -20 °C to 60 °C, making it suitable for a variety of industrial environments.
What type of contact does the relay module have?
The relay module features 2 PDT (double pole, double throw) contacts, which provides versatility in switching applications.
What is the typical response time for this relay module?
The typical response time for the relay module is between 3 ms and 15 ms, ensuring quick operation for time-sensitive applications.
Is there a visual indication of the operating voltage on the relay module?
Yes, the relay module includes an integrated yellow LED that provides a clear visual indication of the operating voltage status.
What is the maximum switching voltage for the relay module?
The maximum switching voltage for the relay module is 250 V AC/DC, which should be considered when designing circuits to ensure safe operation.
What is the degree of protection provided by the relay module?
The relay module offers a degree of protection of RT II for the relay and IP20 for the relay base, which helps protect against certain environmental factors.
What is the mechanical service life of the relay module?
The mechanical service life of the relay module is rated at 5 million cycles, indicating its durability and longevity in mechanical operations.
What type of connection method is used for the relay module?
The relay module utilises a screw connection method, which provides a secure and reliable connection for both solid and flexible conductors.
Are there any accessories available for the relay module?
Yes, there are various accessories available for the relay module, including marker strips, partition plates, and plug-in bridges to facilitate installation and organisation.
