Product Specifications

Nominal Input Voltage UN	24 V DC
Input Voltage Range	19.2 V DC … 46.8 V DC (20 °C)
Drive & Function	Monostable
Drive Polarity	Polarized
Typical Input Current at UN	32 mA
Typical Response Time	15 ms
Typical Release Time	10 ms
Coil Voltage	24 V DC
Rated Insulation Voltage	250 V AC
Rated Surge Voltage	5 kV
Contact Switching Type	4 changeover contacts
Type of Switch Contact	Single contact
Contact Material	AgNi
Maximum Switching Voltage	250 V AC/DC
Minimum Switching Voltage	12 V (10 mA)
Limiting Continuous Current	6 A
Maximum Inrush Current	12 A (20 ms, N/O contacts)
Minimum Switching Current	10 mA (12 V)
Operating Ambient Temperature	-40 °C … 70 °C
Storage / Transport Ambient Temperature	-40 °C … 70 °C

The PHOENIX CONTACT REL-IR-BL/L-24DC/4×21 is a plug-in industrial interface relay module designed for signal isolation, switching, and amplification in control systems. It belongs to the PLC-INTERFACE / REL series, widely used in panels to safely connect control signals with field devices.
Equipped with a 24 V DC coil and 4 changeover (4PDT) contacts, this relay allows flexible switching of multiple circuits simultaneously. Its design ensures electrical isolation between control and load circuits, protecting sensitive PLC or DCS outputs from voltage spikes and electrical noise.

Frequently asked questions：

Q1: What is the Phoenix Contact REL-IR-BL/L-24DC/4×21 1032527?
A1: It is an industrial interface relay used for signal switching and control applications in and electrical systems.

Q2: What type of contact switching does it use?
A2: It features 4 changeover contacts, allowing flexible switching configurations for multiple circuits.

Q3: What is the REL-IR-BL/L-24DC/4×21 1032527 maximum switching voltage?
A3: The REL-IR-BL/L-24DC/4×21 1032527 maximum switching voltage is 250 V AC/DC, suitable for a wide range of industrial applications.

Q4: What is the REL-IR-BL/L-24DC/4×21 1032527 minimum switching voltage?
A4: The minimum switching voltage is 12 V with a minimum current of 10 mA, ensuring reliable low-load operation.

Q5: What is the REL-IR-BL/L-24DC/4×21 1032527 maximum continuous current rating?
A5: The REL-IR-BL/L-24DC/4×21 1032527 relay supports a limiting continuous current of 6 A.

Product Applications

Electricity and Energy Industry
Process Industry
Mechanical Manufacturing

Grab an Extra Discount - Contact Sales Manager Lisa Lin Today :
:sales7@amikon.cn :+86-18965423501 :AMKPLC

We provide a 12-month warranty and worldwide stock availability to guarantee smooth integration and prompt delivery for your daily operations.

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