Omron G2RV-1-S DC21 General Purpose Relay - Equivalent & Substitute Parts

Part Overview

The Omron G2RV-1-S DC21 is a general purpose relay with SPDT (1 Form C) contact configuration, rated for 6A at 24VDC coil voltage. This socketable relay is designed for industrial control applications requiring reliable switching of AC and DC loads. The product is currently obsolete, making equivalent substitute parts necessary for system maintenance and new designs requiring compatible functionality.

Key Parameters

Parameter	Value
Coil Voltage	24VDC
Contact Form	SPDT (1 Form C)
Contact Rating (Current)	6 A
Switching Voltage	440VAC, 125VDC - Max
Coil Current	13.3 mA
Coil Type	Non Latching
Termination Style	Plug In
Must Operate Voltage	19.2 VDC
Must Release Voltage	2.4 VDC
Operate Time	20 ms
Release Time	40 ms
Operating Temperature	-40°C ~ 55°C
Contact Material	Silver Tin Indium (AgSnIn)
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitute parts for the G2RV-1-S DC21 are identified based on strict electrical and mechanical compatibility criteria. The following parameters must match or be compatible:

Coil voltage: 24VDC (exact match required)
Contact form: SPDT (1 Form C) (exact match required)
Contact rating: 6A minimum (equal or higher acceptable)
Coil type: Non Latching (exact match required)
Switching voltage capability: Must support 440VAC and 125VDC minimum
Operating temperature range: Must encompass or exceed -40°C ~ 55°C
Termination compatibility: Socketable or through-hole mounting with equivalent electrical interface

Two substitute parts meet these criteria with documented electrical equivalence.

Parameter Comparison

Parameter	G2RV-1-S DC21 (Main)	G2RV-1SG-DC21 (Omron)	RV1H-G-D24 (IDEC)
Manufacturer	Omron Automation and Safety	Omron Automation and Safety	IDEC
Coil Voltage	24VDC	24VDC	24VDC
Contact Form	SPDT (1 Form C)	SPDT (1 Form C)	SPDT (1 Form C)
Contact Rating (Current)	6 A	6 A	6 A
Switching Voltage	440VAC, 125VDC - Max	440VAC, 125VDC - Max	400VAC, 125VDC - Max
Coil Current	13.3 mA	14.6 mA	10.6 mA
Coil Type	Non Latching	Non Latching	Non Latching
Termination Style	Plug In	Plug In	PC Pin
Must Operate Voltage	19.2 VDC	19.2 VDC	21.6 VDC
Must Release Voltage	2.4 VDC	2.4 VDC	1.68 VDC
Operate Time	20 ms	20 ms	15 ms
Release Time	40 ms	20 ms	20 ms
Operating Temperature	-40°C ~ 55°C	-40°C ~ 55°C	-40°C ~ 70°C
Contact Material	Silver Tin Indium (AgSnIn)	Silver Alloy	Silver Nickel (AgNi), Gold (Au)
Product Status	Obsolete	Active	Active
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

G2RV-1SG-DC21 (Omron Automation and Safety) is the primary substitute for the obsolete G2RV-1-S DC21. Both parts are from the same manufacturer family with identical electrical specifications for coil voltage, contact form, contact rating, switching voltage, and operating voltage thresholds. The G2RV-1SG-DC21 maintains socketable plug-in termination compatibility and is currently in active production status with ROHS3 compliance. Release time is improved at 20 ms versus 40 ms on the original part.

RV1H-G-D24 (IDEC) provides electrical equivalence with identical 24VDC coil voltage, SPDT contact form, and 6A contact rating. This part operates across an extended temperature range (-40°C ~ 70°C) and features faster operate time (15 ms). The primary consideration is termination style: RV1H-G-D24 uses PC pin through-hole mounting rather than socketable plug-in, requiring circuit board layout modification. Switching voltage capability is 400VAC maximum versus 440VAC on the original part. This substitute is suitable for applications where through-hole mounting is acceptable and AC switching does not exceed 400VAC.

Both substitutes carry active product status and current compliance certifications, ensuring long-term availability and regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can G2RV-1SG-DC21 directly replace G2RV-1-S DC21 in existing sockets?

A: Yes. Both parts use identical socketable plug-in termination and are electrically equivalent across all critical parameters including coil voltage, contact configuration, and switching ratings. No circuit modifications are required.

Q: What is the key difference between G2RV-1SG-DC21 and the original G2RV-1-S DC21?

A: The G2RV-1SG-DC21 is the active production equivalent with improved release time (20 ms versus 40 ms) and updated contact material (Silver Alloy versus Silver Tin Indium). Electrical performance for switching applications remains equivalent.

Q: Can RV1H-G-D24 be used as a substitute?

A: RV1H-G-D24 provides electrical equivalence for coil voltage, contact form, and current rating. However, it uses PC pin through-hole termination instead of socketable plug-in mounting. Circuit board redesign is required for this substitution. Additionally, maximum AC switching voltage is 400VAC versus 440VAC on the original part.

Q: Are there packaging differences between these substitutes?

A: G2RV-1-S DC21 and G2RV-1SG-DC21 are both socketable relays with equivalent physical mounting. RV1H-G-D24 is a through-hole mounted relay with different physical dimensions and board footprint.

Q: Which substitute should be selected for new designs?

A: G2RV-1SG-DC21 is recommended for new designs requiring direct socket compatibility with existing infrastructure. RV1H-G-D24 is suitable for new designs where through-hole mounting is specified and AC switching requirements do not exceed 400VAC.

Q: Do all substitutes meet current compliance standards?

A: Yes. G2RV-1SG-DC21 and RV1H-G-D24 both carry ROHS3 compliance certification. RV1H-G-D24 additionally carries CE, cULus, and VDE approvals.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message