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3RB3026-1SB0 – Overload relay, 3…12 A Electronic For motor protection Size S0, Class 10E Contactor mounting Main circuit: Screw Auxiliary circuit: Screw Manual-Automatic Reset
Technial Specification
| product brand name | SIRIUS |
| product designation | solid-state overload relay |
| product type designation | 3RB3 |
| General technical data | |
| size of overload relay | S0 |
| size of contactor can be combined company-specific | S0 |
| power loss [W] for rated value of the current at AC in hot operating state | 0.6 W |
| ● per pole | 0.2 W |
| insulation voltage with degree of pollution 3 at AC rated value | 690 V |
| surge voltage resistance rated value | 6 kV |
| maximum permissible voltage for protective separation | |
| ● in networks with ungrounded star point between auxiliary and auxiliary circuit | 300 V |
| ● in networks with grounded star point between auxiliary and auxiliary circuit | 300 V |
| ● in networks with ungrounded star point between main and auxiliary circuit | 600 V |
| ● in networks with grounded star point between main and auxiliary circuit | 690 V |
| shock resistance | 15g / 11 ms |
| ● according to IEC 60068-2-27 | 15g / 11 ms; Signaling contact 97 / 98 in position “Tripped”: 9g / 11 ms |
| vibration resistance | 1-6 Hz, 15 mm; 6-500 Hz, 20 m/s²; 10 cycles |
| thermal current | 12 A |
| recovery time after overload trip | |
| ● with automatic reset typical | 3 min |
| ● with remote-reset | 0 min |
| ● with manual reset | 0 min |
| reference code according to IEC 81346-2 | F |
| Substance Prohibitance (Date) | 10/1/2009 |
| SVHC substance name | Lead monoxide (lead oxide) – 1317-36-8 |
| Weight | 0.235 Kg |
| Ambient Condition | |
| installation altitude at heigh above sea level maksimum | 2000 m |
| ambient temperature | |
| ● during operation | -25 … +60 °C |
| ● during storage | -40 … +80 °C |
| ● during transport | -40 … +80 °C |
| temperature compensation | -25 … +60 °C |
| realtive humidity during operation | 10 … 95 % |
| Main Circuit | |
| number of poles for main current circuit | 3 |
| adjustable current response value current of the current-dependent overload release | 3 … 12 A |
| operating voltage | |
| ● rated value | 690 V |
| ● at AC-3e rated value maximum | 690 V |
| operating frequency rated value | 50 … 60 Hz |
| operational current rated value | 12 A |
| operational current at AC-3e at 400 V rated value | 12 A |
| operating power | |
| ● for 3-phase motors at 400 V at 50 Hz | 1.5 … 5.5 kW |
| ● for AC motors at 500 V at 50 Hz | 1.5 … 5.5 kW |
| ● for AC motors at 690 V at 50 Hz | 2.2 … 7.5 kW |
| Auxiliary circuit | |
| design of the auxiliary switch | integrated |
| number of NC contacts for auxiliary contacts | 1 |
| ● note | for contactor disconnection |
| number of NO contacts for auxiliary contacts | 1 |
| ● note | for message “tripped” |
| number of CO contacts for auxiliary contacts | 0 |
| operational current of auxiliary contacts at AC-15 | |
| ● at 24 V | 4 A |
| ● at 110 V | 4 A |
| ● at 120 V | 4 A |
| ● at 125 V | 4 A |
| ● at 230 V | 3 A |
| operational current of auxiliary contacts at DC-13 | |
| ● at 24 V | 2 A |
| ● at 60 V | 0.55 A |
| ● at 110 V | 0.3 A |
| ● at 125 V | 0.3 A |
| ● at 220 V | 0.11 A |
| Protective and monitoring functions trip class | CLASS 10E |
| design of the overload release | electronic |
| UL/CSA ratings | full-load current (FLA) for 3-phase AC motor |
| ● at 480 V rated value | 12 A |
| ● at 600 V rated value | 12 A |
| contact rating of auxiliary contacts according to UL | B600 / R300 |
| Short-circuit protection | |
| design of the fuse link | |
| ● for short-circuit protection of the main circuit | |
| — with type of coordination 1 required | gG: 63 A, RK5: 45 A |
| — with type of assignment 2 required | gG: 50 A, J: 45 A |
| ● for short-circuit protection of the auxiliary switch required | fuse gG: 6 A |
| Installation/ mounting/ dimensions | |
| mounting position | any |
| fastening method | Contactor mounting |
| height | 87 mm |
| width | 45 mm |
| depth | 84 mm |
| Connections/ Terminals | |
| product component removable terminal for auxiliary and control circuit | Yes |
| type of electrical connection | |
| ● for main current circuit | screw-type terminals |
| ● for auxiliary and control circuit | screw-type terminals |
| arrangement of electrical connectors for main current circuit | Top and bottom |
| type of connectable conductor cross-sections for main contacts | |
| ● solid | 2x (1 … 2.5 mm²), 2x (2.5 … 10 mm²) |
| ● stranded | 2x 10 mm² |
| ● solid or stranded | 1x (1 … 10 mm²), 2x (1 … 10 mm²) |
| ● finely stranded with core end processing | 1x (1 … 6 mm²), 2 x (1 … 6 mm²), 1x 10 mm² |
| type of connectable conductor cross-sections | |
| ● for auxiliary contacts — solid | 1x (0.5 … 4 mm²), 2x (0.5 … 2.5 mm²) |
| — solid or stranded | 1x (0,5 … 4 mm²), 2x (0,5 … 2,5 mm²) |
| — finely stranded with core end processing | 1x (0.5 … 2.5 mm²), 2x (0.5 … 1.5 mm²) |
| ● for AWG cables for auxiliary contacts | 1x (20 … 14), 2x (20 … 14) |
| tightening torque | |
| ● for main contacts with screw-type terminals | 2 … 2.5 N·m |
| ● for auxiliary contacts with screw-type terminals | 0.8 … 1.2 N·m |
| design of screwdriver shaft Diameter | 5 to 6 mm |
| size of the screwdriver tip | Pozidriv PZ 2 |
| design of the thread of the connection screw | |
| ● for main contacts | M4 |
| ● of the auxiliary and control contacts | M3 |
| Electrical Safety | |
| protection class IP on the front according to IEC 60529 | IP20 |
| touch protection on the front according to IEC 60529 | finger-safe, for vertical contact from the front |
| Communication/ Protocol | |
| type of voltage supply via input/output link master | No |
| Electromagnetic compatibility | conducted interference |
| ● due to burst according to IEC 61000-4-4 | 2 kV (power ports), 1 kV (signal ports) corresponds to degree of severity 3 |
| ● due to conductor-earth surge according to IEC 61000-4-5 | 2 kV (line to earth) corresponds to degree of severity 3 |
| ● due to conductor-conductor surge according to IEC 61000-4-5 | 1 kV (line to line) corresponds to degree of severity 3 |
| ● due to high-frequency radiation according to IEC 61000- 4-6 | 10 V in frequency range 0.15 to 80 MHz, modulation 80 % AM with 1 kHz |
| field-based interference according to IEC 61000-4-3 | 10 V/m |
| electrostatic discharge according to IEC 61000-4-2 | 6 kV contact discharge / 8 kV air discharge |
| Display | |
| display version for switching status | Slide switch |
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