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PHOENIX CONTACT REL-IR-BL/L-24DC/4×21 1032527 Single relay
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.
Product Applications
Energy and Substations:
Control and Monitoring: Suitable for substations with high safety requirements, used as auxiliary relays for system
control and monitoring.
Electrical Isolation: Used for electrical isolation between control circuits and auxiliary circuits to ensure safe operation
of the system.
Industrial and Process Control:
Lines: Used in control cabinets for control and driving of actuators (such as solenoid valves, contactors).
Signal Conversion: Utilizing its 4 conversion contacts to handle multiple complex switching tasks.
Mechanical Manufacturing:
Equipment Control: Integrated as a standard industrial component in various mechanical equipment, used for power
switching or status feedback.
Infrastructure and Transportation:
Rail Transit and Building : Used in protection circuits and automatic control units of power distribution systems.
Claim Your Extra Discount: Contact Sales Manager Lisa Lin for Details
:+86 18965423501 
:sales7@amikon.cn 
:AMKPLC
Payment & Delivery
Payment Term: T/T
Lead Time: Usually 2-3 days
Delivery Ways: DHL,UPS,TNT,CHIRLINE,FEDEX
Major Business
ABB: Industrial robot parts of DSQC series,Bailey INFI90, DCS
Honeywell: 51/MU/MC/TC/CC ...
Triconex: 3008/3511/3625/3664/3721/3700A..
Bently Nevada: 3500/3300/330180-Cable..
Foxboro: FBM203/204/217/231, FCP240/270
Woodward: SPC valve position controller, PEAK15 digital controller
Siemens: 6DD/6DP/6ES5/6DR/6GK Series
Westinghouse Series: 1C/5X ...
General electric: IC693/IC697/IC695/DS200..
Schneider: 140 Series
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or recognized by any of the listed manufacturers or trademarks. industryparts not an authorized distributor, dealer, or representative of the products displayed on this website. All product names, trademarks, brands, and logos used on this website are the property of their respective owners. The description, explanation, or sale of products with these names, trademarks, brands, and logos is for identification purposes only and is not intended to indicate any association with or authorization from any rights holder.
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