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Interface Relays

Interface Relays: Precision Switching for Industrial Control Systems

Interface relays are the backbone of modern industrial control systems, providing galvanic isolation and signal conditioning between PLCs, sensors, and actuators. These electromechanical or solid-state devices typically feature coil voltages ranging from 12V DC to 230V AC, with ...

Interface Relays: Precision Switching for Industrial Control Systems

Interface relays are the backbone of modern industrial control systems, providing galvanic isolation and signal conditioning between PLCs, sensors, and actuators. These electromechanical or solid-state devices typically feature coil voltages ranging from 12V DC to 230V AC, with contact ratings up to 10A at 250V AC. Available in 1, 2, or 4 pole configurations (1P, 2P, 4P), they offer reliable switching for both AC and DC loads. Key technical parameters include coil power consumption (typically 0.5-2W), mechanical endurance exceeding 10 million operations, and dielectric strength of 4kV. Interface relays are often equipped with LED indication, freewheeling diodes, and plug-in bases for easy maintenance. They are known globally as interposing relays, coupling relays, or signal relays, and are essential for protecting sensitive control electronics from high-voltage transients.

Interface relays are deployed across diverse industrial sectors including manufacturing, process automation, energy management, and building control. They are commonly installed in control panels, motor control centers (MCCs), and distributed control systems (DCS). Typical applications include isolating PLC outputs from high-power circuits, converting voltage levels between different control systems, and driving contactors, solenoid valves, or indicator lamps. In harsh environments, relays with IP20 or IP54 protection are used. They are also critical in safety circuits, where redundant relay configurations ensure fail-safe operation. Industries such as automotive, chemical, food and beverage, and water treatment rely on interface relays for reliable signal transmission and equipment protection.

Our interface relay category includes a wide range of subcategories and products. Key subcategories include electromechanical interface relays, solid-state interface relays, and relay modules with integrated sockets. Main article codes often follow patterns like "IR-24VDC-1P" (interface relay, 24V DC coil, 1 pole) or "SSR-230VAC-2P" (solid-state relay, 230V AC, 2 poles). Specific products include the Finder 38 Series, Phoenix Contact PLC-INTERFACE, and Weidmüller TERMOPTO series. These relays are available with various coil voltages (12V, 24V, 48V, 110V, 230V) and contact materials (silver alloy, gold-plated for low-level switching). Accessories like plug-in bridges, marking tags, and surge suppressors are also available to customize installations.

Partnering with Electric Automation Network ensures you get premium interface relays with significant cost advantages. We offer up to 65% discount compared to traditional distributors, with real-time pricing and stock availability on our multilingual portal. Our express shipping guarantees delivery to any global destination within 24-48 hours. Each product includes detailed technical documentation, wiring diagrams, and datasheets. Our team of specialized electrical engineers provides personalized technical support for selection, application, and troubleshooting. Whether you need standard relays or custom configurations, we ensure seamless integration into your control systems.

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Manufacturer Code Reference Catalog Number Description Delivery Price

1SVR405501R4010

1SVR405501R4010

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CR-S048VDC1R Interface relay 1c/o, A1-A2=48VDC, Output=6A/250VAC

CR-S048VDC1R relay module

CR-S048VDC1R Pluggable interface relay 1c/o, A1-A2=48VDC, Output=6A/250VAC

3 View Availability View Price

1SNA645546R0100

RBR 121 AR-115VAC/

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RBR121AR-115VAC/DC Interface relay R600 1c/o,A1-A2=115VAC/DC,250V/10mA-6A,LED

3 View Availability View Price

1SNA645511R2600

1SNA645511R2600

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RBR121AR-230VAC/DC Interface relay R600 1c/o,A1-A2=230VAC/DC,250V/10mA-6A,LED

RBR 121 AR-230VAC/DC

RBR121R-230VUC Interface relay R600 1c/o,A1-A2=230VAC/DC,5-250VAC/10mA-6A, with integrated leakage current protection

3 View Availability View Price

1SVR405501R5010

1SVR405501R5010

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CR-S060VDC1R Interface relay 1c/o, A1-A2=60VDC, Output=6A/250VAC

CR-S060VDC1R relay module

CR-S060VDC1R Pluggable interface relay 1c/o, A1-A2=60VDC, Output=6A/250VAC

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1SVR405521R1100

1SVR405521R1100

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CR-S006/024VDC1SS Socket 1c/o, A1-A2=6-24VDC, 250VAC

Base CR-S006/024VDC1SS

CR-S006/024VDC1SS Socket 1c/o, A1-A2=6-24VDC, 250VAC

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1SVR405521R3100

1SVR405521R3100

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CR-S012/024VADC1SS Socket 1c/o, A1-A2=12-24VAC/DC, 250VAC

Base CR-S012/024VADC1SS

CR-S012/024VADC1SS Socket 1c/o, A1-A2=12-24VAC/DC, 250VAC

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1SVR405521R6100

1SVR405521R6100

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CR-S110/125VADC1SS Socket 1c/o, A1-A2=110-125VAC/DC, 250VAC

Base CR-S110/125VADC1SS

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1SVR405521R7100

1SVR405521R7100

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CR-S220/240VADC1SS Socket 1c/o, A1-A2=220-240VAC/DC, 250VAC

Base CR-S220/240VADC1SS

CR-S220/240VADC1SS BASE X REL? 6 MM

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1SVR405521R5100

1SVR405521R5100

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CR-S048/060VADC1SS Socket 1c/o, A1-A2=48-60VAC/DC, 250VAC

Base CR-S048/060VADC1SS

CR-S048/060VADC1SS Socket 1c/o, A1-A2=48-60VAC/DC, 250VAC

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1SVR405521R1200

1SVR405521R1200

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CR-S006/024VDC1SZ Socket 1c/o, A1-A2=6-24VDC, 250VAC

Base CR-S006/024VDC1SZ

CR-S006/024VDC1SZ Socket 1c/o, A1-A2=6-24VDC, 250VAC

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1SVR405521R3200

1SVR405521R3200

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CR-S012/024VADC1SZ Socket 1c/o, A1-A2=12-24VAC/DC, 250VAC

Base CR-S012/024VADC1SZ

CR-S012/024VADC1SZ Socket 1c/o, A1-A2=12-24VAC/DC, 250VAC

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1SVR405521R5200

1SVR405521R5200

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CR-S048/060VADC1SZ Socket 1c/o, A1-A2=48-60VAC/DC, 250VAC

Base CR-S048/060VADC1SZ

CR-S048/060VADC1SZ Socket 1c/o, A1-A2=48-60VAC/DC, 250VAC

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1SVR405521R6200

1SVR405521R6200

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CR-S110/125VADC1SZ Socket 1c/o, A1-A2=110-125VAC/DC, 250VAC

Base CR-S110/125VADC1SZ

CR-S110/125VADC1SZ Socket 1c/o, A1-A2=110-125VAC/DC, 250VAC

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1SVR405521R7200

1SVR405521R7200

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CR-S220/240VADC1SZ Socket 1c/o, A1-A2=220-240VAC/DC, 250VAC

Base CR-S220/240VADC1SZ

CR-S220/240VADC1SZ Socket 1c/o, A1-A2=220-240VAC/DC, 250VAC

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1SNB041391R0610

Etiqueta CR-SM

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Etiqueta CR-SM

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1SVR405541R3110

1SVR405541R3110

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CR-S024VADC1CRS Interface relay cpl. 1c/o, A1-A2=24VAC/DC, Output=6A/250VAC

Borna Relay CR-S024VADC1CRS

CR-S024VADC1CRS Interface relay cpl. 1c/o, A1-A2=24VAC/DC, Output=6A/250VAC

2 View Availability View Price

1SVR405541R3210

1SVR405541R3210

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CR-S024VADC1CRZ Interface relay cpl. 1c/o, A1-A2=24VAC/DC, Output=6A/250VAC

CR-S024VADC1CRZ relay terminal

CR-S024VADC1CRZ Interface relay cpl. 1c/o, A1-A2=24VAC/DC, Output=6A/250VAC

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1SVR405541R6110

1SVR405541R6110

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CR-S110VADC1CRS Interface relay cpl. 1c/o, A1-A2=110VAC/DC, Output=6A/250VAC

CR-S110VADC1CRS relay terminal

CR-S110VADC1CRS Interface relay cpl. 1c/o, A1-A2=110VAC/DC, Output=6A/250VAC

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1SNA645014R2700

1SNA645014R2700

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RB111A-24VAC/DC Interface relay R600 1n/o,A1-A2=24VAC/DC,250V/10mA-6A,LED

RB 111 A-24VAC/DC

RB111-24VUC Interface relay R600 1n/o,A1-A2=24VAC/DC,5-250VAC/10mA-6A

2 View Availability View Price

1SNA645001R0300

1SNA645001R0300

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RB121A-24VAC/DC Interface relay R600 1c/o,A1-A2=24VAC/DC,250V/10mA-6A,LED

RB 121 A-24VAC/DC

RB121-24VUC Interface relay R600 1c/o,A1-A2=24VAC/DC,5-250VAC/10mA-6A

2 View Availability View Price

1SNA645514R2100

1SNA645514R2100

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RBR111A-24VAC/DC Interface relay R600 1n/o,A1-A2=24VAC/DC,250V/10mA-6A,LED

RBR 111 A-24VAC/DC

RBR111-24VUC Interface relay R600 1n/o,A1-A2=24VAC/DC,5-250VAC/10mA-6A

3 View Availability View Price

1SVR405541R6210

1SVR405541R6210

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CR-S110VADC1CRZ Interface relay cpl. 1c/o, A1-A2=110VAC/DC, Output=6A/250VAC

CR-S110VADC1CRZ relay terminal

CR-S110VADC1CRZ Interface relay cpl. 1c/o, A1-A2=110VAC/DC, Output=6A/250VAC

3 View Availability View Price

1SNA645005R0700

1SNA645005R0700

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RB121A-24VAC/DC Interface relay R600 1c/o,A1-A2=24VAC/DC,250V/1mA-6A,LED

RB121A 24VAC/DC Relay

RB121G-24VUC Interface relay R600 1c/o,A1-A2=24VAC/DC,5-250VAC/10mA-6A

2 View Availability View Price

1SNA645501R0500

1SNA645501R0500

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RBR121A-24VAC/DC Interface relay R600 1c/o,A1-A2=24VAC/DC,250V/10mA-6A,LED

RBR 121 A-24VAC/DC

RBR121-24VUC Interface relay R600 1c/o,A1-A2=24VAC/DC,5-250VAC/10mA-6A

2 View Availability View Price

1SVR405541R7110

1SVR405541R7110

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CR-S230VADC1CRS Interface relay cpl. 1c/o, A1-A2=230VAC/DC, Output=6A/250VAC

CR-S230VADC1CRS relay terminal

CR-S230VADC1CRS Interface relay cpl. 1c/o, A1-A2=230VAC/DC, Output=6A/250VAC

2 View Availability View Price

1SNA645002R0400

1SNA645002R0400

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RB121A-48-60VAC/DC Interface relay R600 1c/o,A1-A2=48-60VAC/DC,250V/10mA-6A,LED

RB 121 A-48-60VAC/DC

RB121-48-60VUC Interface relay R600 1c/o,A1-A2=48-60VAC/DC,5-250VAC/10mA-6A

2 View Availability View Price

1SNA645505R0100

1SNA645505R0100

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RBR121A-24VAC/DC Interface relay R600 1c/o,A1-A2=24VAC/DC,250V/1mA-6A,LED

RBR 121 A-24VAC/DC

RBR121G-24VUC Interface relay R600 1c/o,A1-A2=24VAC/DC,5-250VAC/3mA-6A

2 View Availability View Price

1SNA645006R0000

1SNA645006R0000

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RB121A-48-60VAC/DC Interface relay R600 1c/o,A1-A2=48-60VAC/DC,250V/1mA-6A,LED

RB 121 A-48-60VAC/DC

3 View Availability View Price

1SVR405541R7210

1SVR405541R7210

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CR-S230VADC1CRZ Interface relay cpl. 1c/o, A1-A2=230VAC/DC, Output=6A/250VAC

CR-S230VADC1CRZ relay terminal

CR-S230VADC1CRZ Interface relay cpl. 1c/o, A1-A2=230VAC/DC, Output=6A/250VAC

3 View Availability View Price

1SNA645502R0600

1SNA645502R0600

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RBR121A-48-60VAC/DC Interface relay R600 1c/o,A1-A2=48-60VAC/DC,250V/10mA-6A,LED

RBR 121 A-48-60VAC/DC

RBR121-48-60VUC Interface relay R600 1c/o,A1-A2=48-60VAC/DC,5-250VAC/10mA-6A

3 View Availability View Price

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