EMR relays feature interface, miniature, and power types with 1 CO to 4 CO contacts, rated to 30 A.
Harmony Relays
Boost operational efficiency and maximize equipment availability
Harmony relays are engineered, produced, and rigorously tested to satisfy the demands of wired logic and PLC interface applications.
- Flexible solutions for industrial control panels across packaging, HVAC, pumping, and automation systems
- Integrated onboard diagnostics for simplified and efficient maintenance
- Dependable performance with compliance to global safety and environmental standards
Discover our products below to discover our comprehensive range of innovative relays
SSR relays provide slim interfaces, modular DIN rail, and panel mount types for compact industrial use.
EMR relays provide interface, miniature, and power versions with 1 CO to 4 CO contacts up to 30 A.
A full range of high-performance timing relays for industry, offered with standard dials or NFC control.
Electromechanical Relays
General-purpose relays from 1CO to 4COs (SPDT, DPST, DPDT, 3PDT, 4PDT), up to 30A
Electromechanical relays (EMRs) are traditional relays using electromagnetic coils to switch contacts, offering strong isolation and high current capacity. Valued for their durability and versatility, EMRs are common in industrial automation, power systems, HVAC, and general switching applications.
Note — This range was formerly known as Zelio Electromechanical Relays
Key Benefits and Features:
- Flexibility with a broad range of EMR relays with varied contacts, currents, control circuits, and voltages to suit diverse industrial applications.
- Diagnostics enabled with one-touch-touch test button and LED indicator for fast troubleshooting.
- Efficiency achieved with pre-assembled relays that simplify selection and installation and push-in sockets that save up to 64% wiring time and speed up maintenance.
Popular Electromechanical Relays
Harmony Electromechanical Plug-in Relay 230V AC
- Plug-in miniature relay for mounting on RXZE socket
- Control circuit voltage: 230V AC, 50/60 Hz
- Contacts: 2 C/O
- Current rating: 12A
- Lockable test button
Harmony Electromechanical Plug-in Relay 24V AC
- Plug-in miniature relay for mounting on RXZE socket
- Control circuit voltage: 24V AC, 50/60 Hz
- Contacts: 2 C/O
- Current rating: 6A
- LED and lockable test button
Harmony Electromechanical Socket for plug-in relay (DPDT)
- Mixed contact socket for plug-in miniature relays
- Screw clamp terminals
- Rated operational voltage: 250V (IEC compliant)
- Contacts: 2 C/O (DPDT)
- Current rating: 10A
Harmony Electromechanical Socket for plug-in relay (4PDT)
- Mixed contact socket for plug-in miniature relays
- Screw clamp terminals
- Rated operational voltage: 250V (IEC compliant)
- Contacts: 4 C/O (4PDT)
- Current rating: 10A
Optimize you workflow with these accessories
Solid State Relays
DIN-rail and panel-mount single-phase and three-phase relays, available from 0.1 A to 125 A.
Solid state relays (SSRs) are electronic switching devices with no mechanical moving parts, making them ideal for high-speed applications such as heating and lighting systems. They provide accurate switching, extended service life, and quiet performance.
Note – This product range was previously known as Zelio Solid State Relays.
Key Benefits and Features:
- Effortless setup and testing with built-in indicators and test buttons in the SSP1.S range.
- Streamlined installation with pre-assembled relays, integrated heatsinks with DIN rails mount options, and easy wiring terminals in select models.
- Efficient Pre-assembled Relays that simplify selection and installation. Push-in Sockets to save up to 64% wiring time and speed up maintenance.
Popular Solid State Relays
Din Rail Solid State Relay
- Modular DIN rail solid state relay for single-phase power supply
- Control circuit voltage: 4...32V DC
- Output voltage: 48...600V AC
- Current rating: 20A
Slim Interface Solid State Relay
- Slim interface relay for single-phase applications, designed for mounting with SSLZ socket
- Control circuit voltage: 1...24V DC
- Current rating: 3.5A
- Variant available: Pre-assembled with socket
Modular 3-Phase Solid State Relay
- Modular DIN rail solid state relay for three-phase power supply
- Control circuit voltage: 4...32V DC
- Output voltage: 48V to 600V AC
- Current rating: 25A
Panel Mount Solid State Relay
- Panel-mount solid state relay for single-phase power supply on thermal pad
- Control circuit voltage: 3...32V DC
- Output voltage: 24...300V AC
- Current rating: 25A
Optimize you workflow with these accessories
Control Relays
DIN-rail and panel-mount single-phase and three-phase relays, available from 0.1 A to 125 A.
Solid state relays (SSRs) are electronic switching devices with no mechanical moving parts, making them ideal for high-speed applications such as heating and lighting systems. They provide accurate switching, extended service life, and quiet performance.
Note – This product range was previously known as Zelio Solid State Relays.
Key Benefits and Features:
- Versatile monitoring parameters such as phase, current, voltage, liquid level, frequency, speed, temperature, and pump control tailored to your application.
- Efficient maintenance cutting troubleshooting time with diagnostic button for instant monitoring.
- Streamlined selection with NFC 3-Phase control relay delivering unmatched accuracy, predictive maintenance, and robust security.
Popular Control Relays
Multi Function 3-Phase Control Relay 1 C/O
- Multi-function control relay for monitoring 3-phase power supply circuits
- Measuring range: 220...480V AC
- Output current: 5A
- Output contacts: 1 C/O
Monitoring Control Relay for 3-Phase networks
- Control relay for monitoring 3-phase power supply circuits without timer
- Measuring range: 220...480V AC
- Output current: 5A
- Output contacts: 2 C/O
Multi Function 3-Phase Control Relay 2 C/O
- Multi-function control relay for monitoring 3-phase power supply circuits
- Measuring range: 220...480V AC
- Output current: 5A
- Output contacts: 2 C/O
NFC 3-Phase Monitoring Control Relay
- 3-phase control relay integrated with NFC technology
- Supply voltage: 166.4…576V AC line-to-line, 96…332.4V AC line-to-neutral
- Contacts: 2 C/O
Timer Relays
A comprehensive range of high-performance timer relays for industrial applications, available with traditional dial settings or NFC functionality.
Timer relays create controlled time delays for circuit activation and deactivation, supporting accurate sequencing and timed operations in automation systems.
Note – This product range was previously known as Zelio Timer Relays.
Key Benefits and Features:
- Extensive range of single or multi-timing functions relays, with delays from 0.02 s to 999 hrs and screw or spring terminals for flexible wiring.
- Ease of use enabled by the LED dial pointer that aids setup in dusty or poorly lit environments.
- Simplified selection with the NFC timer relay that delivers unmatched accuracy, effective predictive maintenance, and enhanced security.
Popular Timer Relays
Modular Timer Relay, on delay 24 V DC, 24 - 240V AC
- Time delay: 0.1 sec to 100 hrs
- Supply voltage: 24V DC, 24–240V AC
- Contacts: 1 C/O
- Output current: 8A
Modular Dual Function Timer Relay
- Time delay: 0.05 s to 300 h
- Supply voltage: 24...240V AC/DC, 50/60 Hz
- Contacts: 1 C/O
- Output current: 8A
Modular Timer Relay, on delay 230 V AC
- Time delay: 0.1 sec to 100 hrs
- Supply voltage: 230V AC, 50/60 Hz
- Contacts: 2 C/O
- Output current: 5A
NFC Modular Timer Relay, multi-function
- Time delay: 0.1 sec to 100 hrs
- Supply voltage: 24–240V AC/DC
- Contacts: 2 C/O (timed contact), 1 C/O (timed and instantaneous contact)
Explore the range guide for Harmony Relays Series here
Find the right relay faster with complete technical catalogs and selection references.