Overview
The Omron MY4 24VDC relay is a miniature power relay designed for general-purpose industrial control and automation applications. This 4-pole, double-throw (4PDT) relay operates on a 24VDC coil and is rated to break 3A loads at 24VDC and 220VAC. The MY4 series offers compact design with socket-mount terminals and quick-connect blade connectors, making it a standard choice for control panel integration across manufacturing, process control, and machinery automation environments.
Key Features
- 4-pole, double-throw (4PDT) contact configuration for flexible switching control
- 24VDC coil voltage with 636Ω coil resistance
- Rated contact current: 3A at 24VDC and 3A at 220VAC
- Maximum switching capacity: 250VAC, 30VDC
- Socket-mount design with quick-connect blade terminals for easy panel installation
- Compact package: 28 × 21.5 × 36 mm (approx. 35g)
- Non-latching coil type for standard momentary switching applications
- RoHS compliant for environmental standards compliance
Technical Specifications
- Coil Voltage: 24VDC
- Coil Resistance: 636Ω
- Contact Configuration: 4PDT (4 poles, changeover contacts)
- Rated Contact Current: 3A at 24VDC; 3A at 220VAC
- Max Contact Voltage: 250VAC / 30VDC
- Coil Power: 0.9W nominal
- Mounting: Socket-mount with blade terminals
- Dimensions: 28 × 21.5 × 36 mm
- Weight: Approximately 35g
- Operating Life: AC: 50,000,000 minimum operations; DC: 100,000,000 minimum operations
- Certifications: UL, CSA, VDE, SEV listed
- Series: MY (Miniature Power Relays)
Typical Applications
- Control panel switching and logic circuits
- Machinery and equipment automation controls
- Interlocking and safety circuits
- HVAC and industrial process control
- PLC input/output switching and signal distribution
- Motor starter auxiliary circuits
Compatibility & Replacements
Compatible With
- Standard control panel wiring systems (24VDC control circuits)
- Relay sockets: PYF14S (4-pole socket)
- Industrial automation and PLC input/output modules
- Safety-rated control systems (UL, CSA certified applications)
- Machinery control and interlocking circuits
Replaces / Drop-In Replacement For
- Omron MY4 DC24 (standard variant)
- Omron MY4N DC24 (with operation indicator variant)
- Other general-purpose 4PDT, 24VDC relays in the same contact/coil rating class
Works With
- 24VDC control circuits and power supplies
- Standard relay socket terminals and DIN-rail mounted relay bases
- Manual and automatic control panel configurations
- Industrial PLC output modules requiring external relay switching
- Legacy and modern control panel designs
