Phoenix Contact DEK-OE- 24DC_48DC_100_T Solid-State Relay

Technical Overview

Solid-state relay terminal block with 24V DC input, 3-48V DC/100mA output, 2.5 kV AC isolation, and a slim 6.2mm width for DIN rail mounting.

Key Features

Input solid-state relay module with 24 V DC nominal input voltage
Output voltage range of 3 V DC to 48 V DC
Limiting continuous current of 100 mA
High dielectric strength with 2.5 kV AC input/output test voltage
Integrated reverse polarity protection and surge protection for enhanced reliability
Slim 6.2 mm terminal block width for space-saving DIN rail mounting
Yellow LED status display for operational feedback
Screw connection method for secure wiring (0.2 mm² to 2.5 mm² conductor cross-section)
Operating temperature range of -20 °C to 60 °C

Technical Specification Matrix

Parameter	Value
Product Type	Solid-state relay module
Product Family	DEK
Application	Input function
Operating mode	100% operating factor
Overvoltage category	III
Pollution degree	2
Test voltage (Input/output)	2.5 kV AC
Nominal input voltage U_N	24 V DC
Input voltage range	21.6 V DC ... 26.4 V DC
Switching threshold "0" signal in reference to U_N	≤ 0.4
Switching threshold "1" signal in reference to U_N	≥ 0.8
Typical input current at U_N	6.5 mA
Typical response time	40 µs (delay)
Typical turn-off time	40 µs (delay)
Status display	LED (yellow)
Protective circuit (Input)	Reverse polarity protection; Bridge rectifier
Transmission frequency	30 Hz
Contact switching type	1 N/O contact
Design of digital output	electronic
Output voltage range	3 V DC ... 48 V DC
Limiting continuous current	100 mA
Voltage drop at max. limiting continuous current	≤ 0.9 V
Output circuit	2-conductor, floating
Protective circuit (Output)	Reverse polarity protection; Polarity protection diode; Surge protection
Connection method	Screw connection
Stripping length	8 mm
Screw thread	M3
Conductor cross-section rigid	0.2 mm² ... 2.5 mm²
Conductor cross-section flexible	0.2 mm² ... 2.5 mm²
Conductor cross-section AWG	24 ... 14
Tightening torque	0.4 Nm ... 0.5 Nm
Width	6.2 mm
Height	80 mm
Depth	56 mm
Color	green (RAL 6021)
Ambient temperature (operation)	-20 °C ... 60 °C
Ambient temperature (storage/transport)	-20 °C ... 70 °C
Standards/regulations	IEC 60664, IEC 60664A, DIN VDE 0110
Mounting type	DIN rail mounting
Assembly note	in rows with zero spacing
Mounting position	any
Physical Weight (kg)	0.02
Dimensions L x W x H (cm)	5.6 x 0.62 x 8

Industrial Applications

1. Low-Voltage DC Load Switching in Automation Panels

This solid-state relay terminal block is ideal for switching low-voltage DC loads, such as small motors, indicator lamps, or solenoid valves, within compact industrial automation panels. Its 24V DC input is standard for control signals, while the 3-48V DC / 100mA output flexibility allows it to interface with various load voltages.

Problem Solved

Efficiently switches DC loads from a 24V control system while providing electrical isolation, preventing signal interference and protecting the control circuitry from load-side disturbances, especially in space-constrained panels due to its 6.2 mm width.

DC load switchingindustrial automation24V DC controlelectrical isolationcompact design

2. Signal Interfacing and Level Shifting in PLC Systems

The module can serve as an interface between a 24V DC Programmable Logic Controller (PLC) output and a peripheral device requiring a different DC voltage (3-48V DC) or needing isolation. The 40 µs response time is suitable for many high-speed control applications, and the robust protective circuits ensure system integrity.

Problem Solved

Provides reliable voltage level shifting and galvanic isolation for PLC outputs, enabling safe and compatible control of diverse DC-powered field devices, thereby extending the flexibility and protection of the PLC system.

PLC interfacingvoltage level shiftinggalvanic isolationhigh-speed responsesystem protection

3. Distributed I/O Systems in Harsh Environments

With an operating temperature range of -20 °C to 60 °C and high overvoltage category III, this terminal block is suitable for distributed I/O applications in challenging industrial environments. Its DIN rail mounting and screw connection simplify installation and maintenance, offering a durable solution for remote signal conditioning.

Problem Solved

Offers a durable and reliable solution for distributing and conditioning input/output signals in harsh industrial environments, ensuring consistent performance and signal integrity under varying temperature and electrical conditions.

distributed I/Oharsh environmentDIN rail mountingsignal conditioningtemperature tolerance