Many procurement teams check PLC-RPT-120UC-21-21 against SMPS Phoenix, Phoenix 2966207 and Phoenixcontact Phoenix Contact Industrial Ethernet Switches before signing purchase orders, verifying quality, compliance, and after-sales support availability.
Phoenix PLC-RPT-120UC/21-21 Relay Module
The Phoenix PLC-RPT-120UC/21-21 Relay Module (Part No: 2900335 ) offers a 120 V AC nominal input voltage UN, 102 V AC ... 168 V AC (20 °C) input voltage range, polarized Drive, 7 ms typical response time. Manufactured by Phoenix under the Phoenix Relay Module category, this model belongs to the Phoenix PLC Series.
| Brand | Phoenix Contact |
| Product Type | Relay Module |
| Model Number | PLC-RPT-120UC/21-21 |
Phoenix PLC-RPT-120UC/21-21 Relay Module – Technical Specifications
| Specification | Value |
|---|---|
| Product type | Relay Module |
| Product family | PLC-INTERFACE |
| Application | Universal |
| Mechanical service life | 3x 107 cycles |
| Insulation | Safe isolation of input/output |
| Overvoltage category | III |
| Pollution degree | 3 |
| Maximum power dissipation for nominal condition | 0.5 W |
| Test voltage (Winding/contact) | - |
| Test voltage (Changeover contact/changeover contact) | - |
| Rated surge voltage | 6 kV |
| Nominal input voltage UN | 120 V AC |
| Input voltage range | 102 V AC ... 168 V AC (20 °C) |
| Drive and function | monostable |
| Drive (polarity) | polarized |
| Typical input current at UN | 4.2 mA (at 110 V DC) |
| Typical response time | 7 ms |
| Typical release time | 10 ms |
| Protective circuit | Bridge rectifier; Bridge rectifier |
| Operating voltage display | Yellow LED |
| Contact switching type | 2 changeover contacts |
| Type of switch contact | Single contact |
| Contact material | AgNi |
| Maximum switching voltage | 250 V AC/DC (The separating plate PLC-ATP should be installed for voltages larger than 250 V (L1, L2, L3) between identical terminal blocks in adjacent modules. Potential bridging is then carried out with FBST 8-PLC... or ...FBST 500...) |
| Limiting continuous current | 6 A |
| Maximum inrush current | 15 A (300 ms) |
| Min. switching current | 10 mA (5 V) |
| Interrupting rating (ohmic load) max. | 140 W (at 24 V DC) |
| Switching capacity | 2 A (at 24 V, DC13) |
| Connection method | Push-in connection |
| Stripping length | 10 mm |
| Conductor cross section rigid | 0.14 mm² ... 2.5 mm² |
| Conductor cross section flexible | 0.14 mm² ... 2.5 mm² |
| Conductor cross section AWG | 26 ... 14 |
| Tightening torque | - |
| Width | 14 mm |
| Height | 80 mm |
| depth | 94 mm |
| Color | gray (RAL 7042) |
| Flammability rating according to UL 94 | V0 (Housing) |
| Degree of protection (Relay) | RT III (Relay) |
| Degree of protection (Relay base) | IP20 (Relay base) |
| Ambient temperature (operation) | -40 °C ... 60 °C |
| Ambient temperature (storage/transport) | -40 °C ... 85 °C |
| Temperature | D |
| Humidity | A |
| Vibration | B/C |
| EMC | B |
| Enclosure | Required protection according to the Rules shall be provided upon installation on board |
| Low Voltage Directive | Conformance with Low Voltage Directive |
| Electromagnetic compatibility | Conformance with EMC directive |
| Standards/regulations | IEC 60947-5-1 |
| Mounting Type | DIN rail mounting |
| Mounting position | any |
| Contact Connection type | - |
| Output fuse | - |
| Degree of protection (Installation location) | - |
The Phoenix Contact Relay Module PLC-RPT-120UC/21-21 (Part No: 2900335) is engineered for precision switching and reliable signal control in demanding electrical systems. As part of the PLC-INTERFACE product family, it operates on a nominal input voltage of 120 V AC/DC with a typical input current of 4.2 mA and a low power dissipation of 0.5 W. Its push-in connection method allows faster and secure wiring, while the DIN rail mounting design ensures easy installation within control panels. This Phoenix 120 V AC/DC Relay Module includes two changeover contacts with AgNi contact material, offering stable electrical performance and long service life up to 3×10⁷ cycles. Built with safe input-output isolation and compliance with IEC 60947-5-1, it withstands surge voltages up to 6 kV, making it suitable for both light and heavy-duty control systems. Additionally, the yellow LED indicator enhances visibility of operating status, and the integrated bridge rectifier circuit ensures protection against reverse polarity and transient spikes. Together, these design strengths make the PLC-RPT-120UC/21-21 a trusted relay solution for consistent performance in automation environments.
The Phoenix Contact Relay Module PLC-RPT-120UC/21-21 is extensively used in process control panels, electrical machinery, and factory automation setups requiring reliable control isolation. It ensures precise operation in both AC and DC control circuits, maintaining consistent performance in harsh electrical conditions. This Phoenix 120 V AC/DC Relay Module is designed for universal use across industrial environments, providing stability in PLC interfaces, I/O control, and power distribution systems. Engineers and technicians rely on its quick 7 ms response time and dependable 6 A current capacity to ensure efficient relay switching without contact degradation. The durable construction, safe insulation, and compact 14 mm body allow efficient space utilization, making it a preferred relay solution for control cabinet applications. For automation professionals, the phoenix contact 2900335 model represents a benchmark in long-lasting, efficient electrical relay performance.
Engineers and distributors searching for PLC-RPT-120UC-21-21-2900335, PLC-RPT-120UC/21-21, or PHOENIX CONTACT 2900335 recognize its reliability, durability, and design quality. The Phoenix Contact Relay Module provides smooth switching and exceptional lifespan for control systems operating at 120 V AC/DC. Its precision engineering, compliance with international standards, and protective circuitry reflect the brand’s commitment to quality and safety. Trusted by wholesalers, maintenance engineers, and automation panel builders, the 2900335 Relay Module continues to set a high standard in industrial electrical control. Every detail of this PLC-RPT-120UC/21-21 emphasizes efficiency, performance, and trust—making it a reliable component in automation infrastructure.
