Phoenix Contact UM-2KS50/32R/SI/J/DO24V/YCS (2908399) – 32-Channel Active Relay Module

Product Overview

The Phoenix Contact UM-2KS50/32R/SI/J/DO24V/YCS (2908399) is a 32-channel active relay module designed for industrial automation and process control systems. It provides reliable signal switching and isolation, making it suitable for applications in power distribution, safety systems, and Yokogawa-based control environments. This module is fully compatible with Yokogawa ADV551 and ADV561 digital output modules, ensuring seamless integration with CS3000, Centum VP, and STARDOM control systems1.

Key Features

✔ 32-channel relay module with 100% duty cycle operation
✔ Screw-type terminal connections for secure and vibration-resistant wiring
✔ LED status indicators for real-time monitoring of each channel
✔ High switching capacity: Up to 250 V AC/DC, 4 A per channel
✔ Redundant power and system connections for enhanced reliability
✔ DIN rail mounting for easy installation in control cabinets
✔ Reinforced insulation (300 V, 6 kV surge protection) for safety compliance

Technical Specifications

General Data
Product Type: Active relay module

Channels: 32

Operation Mode: Continuous duty (100% load factor)

Mechanical Lifespan: 20 million switching cycles1

Insulation:

Input/Output: Reinforced insulation (300 V, 6 kV surge)

Output/Output: Basic insulation (300 V, 4 kV surge)

Electrical Characteristics
Rated Input Voltage (UN): 24 V DC (19.2 V – 28.8 V range)

Input Current: 9 mA per relay

Response Time: 5 ms (activation), 7 ms (deactivation)

Protection Circuitry:

Polarity protection diode

Freewheeling diode

Fuse protection (1 A per channel)

Switching Performance
Contact Type: 1 changeover (SPDT), silver-nickel (AgNi) contacts

Max. Switching Voltage: 250 V AC/DC

Min. Switching Voltage: 12 V AC/DC

Max. Continuous Current: 4 A (resistive load)

Power Rating:

96 W (24 V DC)

1000 VA (250 V AC)

Connection & Installation

Field-Side Connection: Screw terminals (0.2 – 4 mm² rigid / 0.2 – 2.5 mm² flexible)

Control-Side Connection: Yokogawa KS-compatible (50-pin)

Recommended Cables:

Phoenix Contact YUC50

Yokogawa AKB331

Mounting: DIN rail (EN 60715)

Dimensions: 505.5 mm (W) × 125.5 mm (H) × 60 mm (D)

Environmental & Safety Ratings
Operating Temperature: -20°C to +50°C

Storage Temperature: -20°C to +70°C

Protection Class: IP00 (module), IP54 (when installed)

Standards Compliance: EN 61010-2-201, RoHS, REACH

Applications

This relay module is widely used in:

Process automation (Yokogawa CS3000, Centum VP, STARDOM systems)

Industrial control and safety systems

Power distribution and switching tasks

Redundancy and fail-safe applications

Ordering Information
Phoenix Contact P/N: 2908399

Packaging: 1 unit per package

Weight: Approx. 1.24 kg (with packaging)