TeSys K - differential thermal overload relays - 3.7...5.5 A - class 10A - LR2K0312
TeSys LRK thermal overload relay, 5.5A/690V, thermal setting range 3.7-5.5A, tripping class 10A, for protection of 3-phase motors 2.2kW@400V.
Differential device with phase failure and load unbalance detection.
It provides a thermal adjustement dial, a manual-automatic reset selector, a test slide switch for simulation of a tripping, reset/stop button, a flag indicator and 2 auxiliary contacts 1NO+1NC for fault signalling.
Settings are protected by a transparent cover lockable by sealing.
Connection by screw clamp terminals, it connects directly to the bottom terminals of 3-pole contactors LC1K06-K16.
Mounting on DIN rail, separated from the contactor, with use of a terminal block LA7K0064 (to be ordered separately).
Multi standards certified (IEC, UL, CSA, CCC, EAC), Green Premium compliant (RoHs/Reach).
| Attribute | Value |
|---|---|
| SKU | LR2K0312 |
| product certifications | CSA, UL |
| ambient air temperature for storage | -40-70 °C |
| ambient air temperature for operation | -20-55 °C without derating conforming to IEC 60947, -30-60 °C with derating conforming to IEC 60947 |
| range of product | TeSys K thermal overload relays |
| product or component type | Relay Beban Lebih Termal |
| net weight | 0.145 kg |
| standards | IEC 60947, VDE 0660, NF C 63-650, BS 4941 |
| device short name | LR2K |
| range | TeSys K |
| product compatibility | LP4K, LC1K, LP1K, LC7K |
| product name | TeSys LRK |
| mechanical robustness | shocks NO contact: 10 Gn for 11 ms conforming to IEC 60068-2-27, shocks NC contact: 10 Gn for 11 ms conforming to IEC 60068-2-27, vibrations NO contact: 2 Gn, 5...300 Hz conforming to IEC 60068-2-6, vibrations NC contact: 2 Gn, 5...300 Hz conforming to IEC 60068-2-6 |
| power dissipation per pole | 2 W |
| [Ith] conventional free air thermal current | 6 A for signalling circuit |
| relay application | motor protection |
| network frequency | <= 400 Hz |
| connections - terminals | screw clamp terminals 1 cable(s) 1.5-4 mm²solid, screw clamp terminals 2 cable(s) 1.5-4 mm²solid, screw clamp terminals 2 cable(s) 0.75-4 mm²flexible without cable end, screw clamp terminals 1 cable(s) 0.75-4 mm²flexible without cable end, screw clamp terminals 1 cable(s) 0.34-2.5 mm²flexible with cable end, screw clamp terminals 2 cable(s) 0.34-1.5 mm²flexible with cable end |
| height | 58 mm |
| mounting support | plate, with specific accessories, rail, with specific accessories, under contactor |
| compatibility code | LR2K |
| width | 45 mm |
| depth | 65 mm |
| operating altitude | 2000 m without derating |
| IP degree of protection | IP2x conforming to IEC 60529 |
| network type | AC, DC |
| tightening torque | 1.3 N.m - on screw clamp terminals - with screwdriver flat Ø 6 mm, 1.3 N.m - on screw clamp terminals - with screwdriver Philips No 2 |
| control type | red push-button: trip test function, blue push-button: stop and manual reset, selector switch: manual or automatic reset |
| [Ue] rated operational voltage | <= 690 V for power circuit, 690 V AC AC-15 for signalling circuit, 250 V DC DC-13 for signalling circuit |
| local signalling | trip indicator (yellow) |
| [Ui] rated insulation voltage | power circuit: 600 V conforming to CSA C22.2 No 14, power circuit: 690 V conforming to BS 4941, power circuit: 690 V conforming to IEC 60947, power circuit: 750 V conforming to VDE 0110 group C |
| auxiliary contact composition | 1 NO + 1 NC |
| associated fuse rating | 6 A gG for signalling circuit conforming to VDE 0660, 6 A gG for signalling circuit conforming to IEC 60947 |
| flame retardance | V1 conforming to UL 94, requirement 2 conforming to NF F 16-101, requirement 2 conforming to NF F 16-102 |
| protective treatment | TC conforming to IEC 60068, TC conforming to DIN 50016 |
| fire resistance | 850 °C conforming to IEC 60695-2-1 |
| thermal protection adjustment range | 3.7-5.5 A |
| phase failure sensitivity | yes conforming to IEC 60947-4-1 |
| thermal overload class | class 10A conforming to IEC 60947-4-1 |