Phoenix Contact PLC-BSC 24V DC Relay Base Terminal Block

Technical Overview

DIN rail mountable relay base for 24V DC input, featuring screw connections, LED status, damping diode protection, and -40 to 60°C operation.

Key Features

6.2 mm slim design for space-saving installations.
Screw connection method ensures secure and reliable wiring.
Designed for easy mounting on a DIN rail (NS 35/7,5).
Accepts plug-in miniature relays or solid-state relays (not included).
LED status display provides clear indication of input voltage.
Wide operating temperature range of -40°C to +60°C for demanding industrial conditions.
Features one changeover contact (1 PDT / SPDT).
Compatible with plug-in bus bridges for convenient grouping of terminal blocks.

Technical Specification Matrix

Parameter	Value
Nominal Input Voltage	24 V DC
Connection Method	Screw connection
Conductor Cross Section (solid)	0.14 mm² ... 2.5 mm²
Conductor Cross Section (flexible)	0.14 mm² ... 2.5 mm²
Conductor Cross Section (AWG)	26 ... 14 AWG
Stripping Length	8 mm
Screw Thread	M3
Contact Type	1 changeover contact (1 PDT / SPDT)
Protective Circuit	Damping diode, polarity protection diode
Status Display	LED
Mounting Type	DIN Rail NS 35/7,5
Operating Temperature	-40 °C ... 60 °C
Storage/Transport Temperature	-40 °C ... 85 °C
Color	gray (RAL 7042)
Flammability Rating UL 94 (Housing)	V0
Physical Weight (kg)	0.03
Dimensions L x W x H (cm)	9.4 x 0.62 x 8

Industrial Applications

1. Industrial Control Panel Interfacing

This relay base provides a compact and robust interface for connecting 24V DC control signals from PLCs or other control devices to miniature relays, enabling the switching of higher power loads or isolating circuits within industrial control panels.

Problem Solved

Effectively isolates sensitive PLC outputs from noisy or higher-power load circuits while providing visual status indication and protection against voltage spikes.

24 V DCDIN Rail MountScrew ConnectionDamping DiodeLED StatusControl Panel

2. Building Automation Systems

Utilizing its 24V DC input and compact 6.2mm width, this relay base is ideal for integrating into dense building automation cabinets to manage lighting, HVAC, or access control systems, where space is a premium and reliable signal transfer is critical.

Problem Solved

Provides a space-efficient and reliable means to interface low-voltage control signals with various building system actuators and sensors, protecting control electronics from electrical transients.

24 V DC6.2 mm WidthDIN Rail MountBuilding ManagementSignal Isolation

3. Machine Safety Circuit Integration

The Phoenix Contact 2966016 can be used as a base for safety relays in machine applications operating in harsh environments, given its -40°C to 60°C operating temperature range and robust screw connections, ensuring secure and consistent performance even under varying conditions.

Problem Solved

Offers a dependable and protected mounting solution for safety-rated plug-in relays, allowing for safe electrical disconnection and maintaining operational integrity in environments with temperature fluctuations.

-40 °C to 60 °CScrew ConnectionDamping DiodeMachine SafetyReliable Interface