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ETR4 Timing Relay | 3 to 60 Seconds Adjustable | IP20 Protection | DIN Rail Mount by Eaton
ETR4 timing relay with adjustable time range from 3 to 60 seconds and IP20 protection—ideal for motor control and automation systems. Built for industrial applications, it features a fixed timing function with star-delta switching and a high mechanical lifespan of 30 million operations.
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Product Name/Title: ETR4 Timing Relay | 3 to 60 Seconds Adjustable | IP20 Protection | DIN Rail Mount by Eaton
Brand: Eaton
SKU: Y7-31884
Alternatively Known As: ETR4 Timing Relay, Star-Delta Timer Relay, Eaton Star-Delta Timer, ETR4-51-A Timer, Motor Control Timer Relay
Technical Specifications
- Time range: 3 to 60 seconds
- Power consumption: 1.8 W at DC, 2 VA at AC
- Rated operational current: 3 A at AC-15 and AC-14
- Rated operational voltage: up to 440 V AC
- Rated impulse withstand voltage: 6000 V AC
- Contact changeover time: 50 ms
- Command time: 30 ms DC, 50 ms AC
- Operating temperature range: -25 °C to 60 °C
- Mounting: DIN rail (top hat rail)
- Degree of protection: IP20
- Shock resistance: 4 g mechanical
- Pollution degree: 2
- Overvoltage category: III
- Terminal capacity: supports solid and stranded wires from 0.5 to 2.5 mm²
- Dimensions (H x L x W): 83mm x 103mm x 23mm
- Weight: 0.115 kg
Key Features
- Fixed timing function with star-delta switching
- Time range adjustable from 3 to 60 seconds
- Rated control supply voltage from 24 to 240 V AC/DC
- Single change-over contact with 3 A nominal current
- Screw connection type for secure wiring
- High mechanical lifespan of 30 million operations
- IP20 degree of protection for terminals
- Suitable for DIN rail (top hat rail) mounting
- Shock resistance of 4 g according to IEC/EN 60068-2-27
- Complies with multiple international certifications including UL, CE, CSA, IEC
Professional Installation Requirements
- Installation by a qualified electrician is required to ensure compliance with electrical standards and safe operation.
Applications
- Industrial control panels
- Motor star-delta starting circuits
- Automation systems requiring timing relay functions
- DIN rail mounting in electrical switchgear
Standards & Compliance
- AS/NZS 3000 – Wiring Rules (Electrical Installation)
- AS/NZS 3112 – Plugs and Socket-Outlets (Type I Plug)
Environmental Benefits
- High durability reduces replacement frequency and waste
- Low power consumption at 1.8 W improves energy efficiency
- Complies with international standards ensuring safe and environmentally responsible operation
Warranty Information
Standard Eaton warranty applies; typically 1-3 years depending on region and application. Refer to Eaton warranty policy for details.
Available Now
The Eaton Moeller ETR4-51-A Timing Relay is available for immediate purchase, ideal for industrial motor control and automation applications.
