24516 Page 109 Friday, October 26, 2001 12:37 PM Characteristics TeSys protection components 3-pole thermal overload relays, model d Electrical characteristics of power circuit Relay type LRD- LR2- LRD- LR2- LRD- LR2- LRD- 01 to 16 D15pp 21 to 35 D25pp 3322 to D35pp 4365 to 33696 4369 LR3- LR3- LR3- D01 to D16 D21 to D35 D3322 to D33696 Tripping class To UL 508, EN 60947-4-1 10 A 20 10 A 20 10 A 20 10 A 2 Rated insulation voltage (Ui) Conforming to EN 60947-4-1 V 690 690 1000 1000 Conforming to UL, CSA V 600 600 600 600 except LRD-4369 Rated impulse withstand voltage (Uimp) kV 6 6 6 6 Frequency limits Of the operational current Hz 0400 0400 0400 0400 Setting range Depending on model A 0.113 1238 1710 80140 4 Connection to screw clamp terminals Min/max c.s.a. 2 2.3 Flexible cable without cable end 1 conductor mm 1.5/10 1.5/10 4/35 4/50 2 Flexible cable with cable end 1 conductor mm 1/4 1/6 except 4/35 4/35 LRD-21: 1/4 2 Solid cable without cable end 1 conductor mm 1/6 1.5/10 except 4/35 4/50 LRD-21: 1/6 Tightening torque N.m 1.7 1.85 2.5 9 9 Connection to spring terminals Min/max c.s.a. 2 Flexible cable without cable end 1 conductor mm 1.5/4 1.5/4 2 Solid cable without cable end 1 conductor mm 1.5/4 1.5/4 Operating characteristics Temperature compensation C - 20+ 60 - 30+ 60- - 30+ 60 - 20+ 60 Tripping threshold Conforming to EN 60947-4-1 A 1.14 0.06 In Sensitivity to phase failure Conforming to EN 60947-4-1 Tripping current 30 % of In on one phase, the others at In Tripping curves class 20 Time class 10 A Time Average operating time related to multiples of the 2 2 current setting 1 1 40 40 20 20 10 10 4 4 2 2 1 1 40 40 20 20 10 10 1 2 4 4 1 3 2 2 2 3 1 1 0,8 0,8 0,8 1 2 4 6 10 1720 0,8 1 2 4 6 10 1720 x current setting (Ir) x current setting (Ir) 1 Balanced operation, 3-phase, from cold state. 2 Balanced operation, 2-phase, from cold state. 3 Balanced operation, 3-phase, after a long period at the set current (hot state). References: Dimensions: Schemes: pages 2/112 and 2/113 pages 2/116 to 2/118 page 2/119 Schneider Electric 2/109 Seconds Minutes Hours Minutes Hours Seconds