3RB20 Solid State Overload Relays - Siemens Sirius
SIEMENS SIRIUS 3RB20 Overload Relays
Siemens SIRIUS 3RB20 solid-state overload relays have an internal power supply that has been designed to provide current-dependent protection for loads with normal starting and heavy starting against impermissibly high temperature rises due to overload, phase asymmetry or phase failure.
SIEMENS SIRIUS 3RB20 Solid State Overload Relays
| 3RB20 Overload Relay Selection Chart: Manual / Automatic Reset |
| Photo | Frame Size | For Contactor | Setting Range Amps | Class 10 Catalog No | Price | Class 20 Catalog No | Price |
|---|---|---|---|---|---|---|---|
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S00 | 3RT1015 3RT1016 3RT1017 |
0.1 - 0.4 | 3RB2016-1RB0 | $88.00 | 3RB2016-2RB0 | $88.00 |
| 0.32 - 1.25 | 3RB2016-1NB0 | 3RB2016-2NB0 | |||||
| 1 - 4 | 3RB2016-1PB0 | 3RB2016-2PB0 | |||||
| 3 - 12 | 3RB2016-1SB0 | 3RB2016-2SB0 | |||||
| S0 | 3RT1023 3RT1024 3RT1025 3RT1026 |
0.1 - 0.4 | 3RB2026-1RB0 | $109.00 | 3RB2026-2RB0 | $109.00 | |
| 0.32 - 1.25 | 3RB2026-1NB0 | 3RB2026-2NB0 | |||||
| 1 - 4 | 3RB2026-1PB0 | 3RB2026-2PB0 | |||||
| 3 - 12 | 3RB2026-1SB0 | 3RB2026-2SB0 | |||||
| 6 - 25 | 3RB2026-1QB0 | 3RB2026-2QB0 | |||||
| S2 | 3RT1033 3RT1034 3RT1035 3RT1036 |
6 - 25 | 3RB2036-1QB0 | $109.00 | 3RB2036-2QB0 | $136.00 | |
| 6 - 25 | 3RB2036-1QW1 | 3RB2036-2QW1 | |||||
| 12.5 - 50 | 3RB2036-1UB0 | $192.00 | 3RB2036-2UB0 | $192.00 | |||
| 12.5 - 50 | 3RB2036-1UW1 | 3RB2036-2UW1 | |||||
| S3 | 3RT1044 3RT1045 3RT1046 |
12.5 - 50 | 3RB2046-1UB0 | $204.00 | 3RB2046-2UB0 | $192.00 | |
| 25 - 100 | 3RB2046-1EB0 | $295.00 | 3RB2046-2EB0 | $232.00 | |||
| 25 - 100 | 3RB2046-1EW1 | $202.00 | 3RB2046-2EW1 | $232.00 | |||
| S6 | 3RT1054 3RT1055 3RT1056 |
50 - 200 | 3RB2056-1FC2 | $316.00 | 3RB2056-2FC2 | $344.00 | |
| 50 - 200 | 3RB2056-1FW2 | 3RB2056-2FW2 | |||||
| S10/S12 | 3RT1064 3RT1065 3RT1066 3RT1075 3RT1076 |
50 - 250 | 3RB2066-1GC2 | $374.00 | 3RB2066-2GC2 | $374.00 | |
| 200 - 540 | 3RB2066-1KG0 | 3RB2066-2KG0 | |||||
| 300 - 360 | 3RB2066-1LG0 | 3RB2066-2LG0 | |||||
| 160 - 630 | 3RB2066-1MC2 | $534.00 | 3RB2066-2MC2 | $579.00 |
| 3RB20 Overload Relay Selection Chart: Manual Reset Only |
| Photo | Frame Size | For Contactor | Setting Range Amps | Class 10 Catalog No | Price | Class 20 Catalog No | Price |
|---|---|---|---|---|---|---|---|
![]() |
S00 | 3RT1015 3RT1016 3RT1017 |
0.1 - 0.4 | 3RB2015-1RB0 | $88.00 | 3RB2015-2RB0 | $88.00 |
| 0.32 - 1.25 | 3RB2015-1NB0 | 3RB2015-2NB0 | |||||
| 1 - 4 | 3RB2015-1PB0 | 3RB2015-2PB0 | |||||
| 3 - 12 | 3RB2015-1SB0 | 3RB2015-2SB0 | |||||
| S0 | 3RT1023 3RT1024 3RT1025 3RT1026 |
0.1 - 0.4 | 3RB2025-1RB0 | $109.00 | 3RB2025-2RB0 | $109.00 | |
| 0.32 - 1.25 | 3RB2025-1NB0 | 3RB2025-2NB0 | |||||
| 1 - 4 | 3RB2025-1PB0 | 3RB2025-2PB0 | |||||
| 3 - 12 | 3RB2025-1SB0 | 3RB2025-2SB0 | |||||
| 6 - 25 | 3RB2025-1QB0 | 3RB2025-2QB0 | |||||
| S2 | 3RT1033 3RT1034 3RT1035 3RT1036 |
6 - 25 | 3RB2035-1QB0 | 3RB2035-2QB0 | |||
| 6 - 25 | 3RB2035-1QW1 | 3RB2035-2QW1 | |||||
| 12.5 - 50 | 3RB2035-1UB0 | 3RB2035-2UB0 | |||||
| 12.5 - 50 | 3RB2035-1UW1 | 3RB2035-2UW1 | |||||
| S3 | 3RT1044 3RT1045 3RT1046 |
12.5 - 50 | 3RB2046-1UB0 | 3RB2046-2UB0 | |||
| 25 - 100 | 3RB2045-1EB0 | 3RB2045-2EB0 | |||||
| 25 - 100 | 3RB2045-1EW1 | 3RB2045-2EW1 | |||||
| S6 | 3RT1054 3RT1055 3RT1056 |
50 - 200 | 3RB2055-1FC2 | 3RB2055-2FC2 | |||
| 50 - 200 | 3RB2055-1FW2 | 3RB2055-2FW2 | |||||
| S10/S12 | 3RT1064 3RT1065 3RT1066 3RT1075 3RT1076 |
50 - 250 | 3RB2065-1GC2 | 3RB2065-2GC2 | |||
| 200 - 540 | 3RB2065-1KG0 | 3RB2065-2KG0 | |||||
| 300 - 360 | 3RB2065-1LG0 | 3RB2065-2LG0 |
Siemens 3RB20 Solid State Overload Relays- Features, Benefits and Description
Features
- 1NO and 1NC auxiliary contacts
- Manual/automatic RESET
- Trip indicator
- STOP button
- Test function
- Sealable cover
Benefits
- Allows use of the relays at
high temperatures without derating. - Provides safe protection for the
loads even after years of use in
severe operating conditions. - Enables solutions for very fast
starting motors requiring special
protection.
Description
- Class 10 or 20, solid state overload relays for
direct mounting to 3RT10 contactors or for
separate mounting when used in conjunction
with 3RU19 separate mount kits

