When engineers and technicians talk about general-purpose relays, one name that consistently comes up is Omron. Among their extensive lineup, the Omron General Purpose Relay G2RV-SL701 21V DC stands out as a highly efficient, slim, and durable relay designed for demanding industrial environments. With its compact 6 mm width and robust performance ratings, this relay saves space without compromising reliability.
In this article, we’ll dive deep into its detailed specifications, compare it with similar products, and highlight certifications that matter for compliance and purchasing decisions.
Why the Omron G2RV-SL701 Matters in Modern Control Panels
Today’s control panels demand space-saving, energy-efficient, and reliable switching devices. The Omron G2RV-SL701 ticks all these boxes. Designed specifically for DIN-rail mounting, its transparent housing allows technicians to visually inspect contacts, while its protective cover ensures the manual test switch is tamper-resistant. This balance of visibility and safety makes it ideal for factory automation, process control, and building management systems.
If you’re building or upgrading your electrical systems, you might also want to explore our control relays collection for related components.
Omron G2RV-SL701 Relay Specifications
Coil and Input Characteristics
· Nominal Coil Voltage: 21 VDC (operates within ±10%)
· Coil Current: ~13.3 mA at 21 V (approx. 300 mW)
· Operate Voltage: 80% of rated (~16.8 V)
· Release Voltage: 10% of rated (~2.1 V)
· Type: Non-latching, plug-in type
Contact Ratings
· Contact Form: 1 Form C (SPDT)
· Contact Material: AgSnIn alloy
· Resistive Load: 6 A at 250 VAC / 6 A at 30 VDC
· Inductive Load: 2.5 A at 250 VAC (PF 0.4), 2 A at 30 VDC (L/R=7ms)
· Max Switching Voltage: 400 VAC / 125 VDC
· Max Switching Current: 6 A
· Contact Resistance: ≤100 mΩ
Switching Performance
· Operate Time: ≤20 ms
· Release Time: ≤40 ms
· Electrical Life: ≥100,000 ops (resistive load)
· Mechanical Life: ≥5,000,000 ops
Environmental Ratings
· Operating Temp Range: –40 °C to +55 °C
· Vibration Resistance: 10–55 Hz, 0.5 mm amplitude
· Shock Resistance: 200 m/s² (energized)
· Pollution Degree: 2
· Weight: ~35 g
Comparison with Similar Relays
When evaluating relays, engineers often compare across brands to balance cost, reliability, and certifications. Below is a simplified comparison:
|
Relay |
Coil Voltage |
Contact Rating |
Width |
Special Features |
|
Omron G2RV-SL701 |
21 VDC |
6 A @ 250 VAC |
6 mm |
Transparent housing, test switch cover |
|
Omron G2RV-SL500 |
24 VDC |
6 A |
6 mm |
Spring-clamp terminals |
|
IDEC RV8H Series |
24 VDC |
6 A |
6 mm |
Hazardous location ratings, locking lever |
|
Finder 38 Series |
24 VDC |
6 A |
6 mm |
LED indicator, surge suppression |
|
Panasonic SF-A |
24 VDC |
4–6 A |
12 mm |
Compact but wider footprint |
This comparison shows that while competitors like Finder and IDEC offer similar slim relays, Omron’s transparent housing and robust approvals give it an edge for critical inspection and safety-focused applications.
For those also working with safety and automation devices, you can explore sensor and automation components in our catalog.
Certifications and Compliance
Certifications are critical for buyers, especially in regulated industries like automotive, energy, and manufacturing. The Omron G2RV-SL701 meets multiple global standards:
· UL 508 (Industrial Control Equipment)
· IEC/EN 61810-1 (VDE) for electromechanical relays
· cULus & TÜV Certification for North American and European markets
· Lloyd’s Register approval for maritime use
· CE Marking for EU directives
· RoHS Compliance ensuring eco-friendly materials
Applications in Industrial Environments
Because of its slim size and reliability, the G2RV-SL701 relay is widely used in:
· Factory Automation: Switching motors, solenoids, and conveyor systems.
· Process Control: Controlling pumps, valves, and heating systems.
· Building Management: Lighting control, HVAC, and safety systems.
· Energy Systems: Solar inverter protection, battery management, and distributed energy control.
Industrial facilities also benefit from pairing relays with protective devices. Explore our circuit protection range to enhance system reliability.
Final Thoughts
The Omron G2RV-SL701 21V DC general-purpose relay is more than just a space-saving device—it is a reliable, compliant, and cost-effective solution that meets the demands of modern industrial control. Whether you’re designing compact panels or upgrading existing systems, this relay ensures you won’t have to compromise on performance.
Explore Other Omron General-Purpose Relay
-
Omron General Purpose Relay 3PDT 220Vac MK3P5-I
-
Omron General Purpose Relay 21VDC G2RV-SL500
-
Omron General Purpose Relay 11V DC G2RV-SL500
