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The Omron G2R-1 AC100/(110) is a general-purpose monostable electromechanical power relay with one changeover contact in an SPDT (1 CO) arrangement. It has five straight PCB pins and can be mounted directly on a printed circuit board or inserted into a compatible socket.
For control-panel installations it can, for example, be used with a compatible DIN-rail socket for 1-contact relays, allowing the wiring to remain on the socket and the relay to be replaced without desoldering.
The 100/(110) V AC coil designation represents three rated operating conditions: 100 V AC at 50 Hz, 100 V AC at 60 Hz and 110 V AC at 60 Hz. The 110 V AC condition is not specified at 50 Hz. Rated coil current is 11 mA at 100 V AC/50 Hz, 9 mA at 100 V AC/60 Hz and 10.6 mA at 110 V AC/60 Hz. The manufacturer specifies a reference coil resistance of 4 600 Ω.
The must-operate voltage is no more than 80 % of the corresponding rated voltage and the must-release voltage is at least 30 %. At 23 °C, maximum coil voltage is 140 % of rated voltage; this is the maximum within a varying operating voltage range and is not a continuous voltage rating.
Switching capacity depends on load type. With a resistive load, the contact is rated at 10 A at 250 V AC or 10 A at 30 V DC. With an inductive load, the ratings are 7.5 A at 250 V AC with cos φ = 0.4 and 5 A at 30 V DC with L/R = 7 ms. The 10 A figure must therefore not be interpreted as a rating that applies indiscriminately to every type of load.
The contacts use a cadmium-free silver alloy. The relay provides 5 kV AC dielectric strength between the coil and contacts and a minimum insulation resistance of 1 000 MΩ. The insulation distance between coil and contacts is 8 mm clearance and 8 mm creepage. It can operate from −40 °C to 70 °C and the AC-coil version has a minimum mechanical endurance of 10 000 000 operations.
| Brand | Omron |
| Model | G2R-1 AC100/(110) |
| Electrónica Embajadores code | RL3A817 |
| Series | G2R |
| Type | General-purpose electromechanical power relay |
| Relay function | Monostable |
| Contact configuration | SPDT, 1 CO (1 changeover contact) |
| Number of poles | 1 |
| Number of pins | 5 |
| Terminal type | Straight PCB pins |
| Mounting | Direct PCB mounting or compatible socket, including DIN-rail sockets |
| Enclosure protection | Flux protected |
| Contact material | Cadmium-free silver alloy |
| Coil polarity | Non-polarised |
| Rated coil designation | 100/(110) V AC |
| Rated voltage and frequency conditions | 100 V AC at 50 Hz; 100 V AC at 60 Hz; 110 V AC at 60 Hz |
| Rated coil current | 11 mA at 100 V AC/50 Hz; 9 mA at 100 V AC/60 Hz; 10.6 mA at 110 V AC/60 Hz |
| AC rated coil current tolerance | +15 %/−20 % at 23 °C |
| Coil resistance | 4 600 Ω, reference value |
| Must-operate voltage | ≤ 80 % of the corresponding rated voltage |
| Must-release voltage | ≥ 30 % of the corresponding rated voltage |
| Maximum coil voltage | 140 % of rated voltage at 23 °C; maximum within a varying operating voltage range, not a continuous rating |
| Rated resistive load | 10 A at 250 V AC; 10 A at 30 V DC |
| Rated inductive load | 7.5 A at 250 V AC (cos φ = 0.4); 5 A at 30 V DC (L/R = 7 ms) |
| Rated carry current | 10 A |
| Maximum switching current | 10 A |
| Maximum switching voltage | 380 V AC; 125 V DC |
| Maximum switching power, resistive load | 2 500 VA; 300 W |
| Maximum switching power, inductive load | 1 875 VA; 150 W |
| Contact resistance | ≤ 30 mΩ, initial value |
| Operate time | ≤ 15 ms |
| Release time | ≤ 10 ms, AC coil |
| Maximum mechanical operating frequency | 18 000 operations/h |
| Maximum electrical operating frequency | 1 800 operations/h |
| Insulation resistance | ≥ 1 000 MΩ at 500 V DC, initial value |
| Dielectric strength, coil to contacts | 5 kV AC, 50/60 Hz, for 1 min |
| Dielectric strength between contacts | 1 kV AC, 50/60 Hz, for 1 min |
| Insulation distance, coil to contacts | 8 mm clearance; 8 mm creepage |
| Mechanical endurance | ≥ 10 000 000 operations, AC coil, at 18 000 operations/h |
| Electrical endurance | ≥ 100 000 operations, at 1 800 operations/h under rated load |
| Operating temperature | −40–70 °C, with no icing |
| Operating humidity | 5 %–85 % |
| Maximum dimensions | 29 × 13 × 25.5 mm |
| Weight | Approximately 17 g |
