Product data sheet RE8RA31FUTQ Characteristics industrial timing relay - 0.3..30 s - type C - 110..240 V AC - 1 C/O Price* : 95.00 USD Discontinued Main Range of product Zelio Time Product or component type Optimum industrial timing relay Component name RE8 Time delay type C Time delay range 0.3...30 s Sale per indivisible quantity 10 Complementary Discrete output type Relay Contacts material 90/10 silver nickel contacts Width pitch dimension 0.89 in (22.5 mm) [Us] rated supply voltage 110...240 V ACat 50/60 Hz Voltage range 0.9...1.1 Us Connections - terminals Screw terminals 2 x 1.5 mm², flexible cable with cable end Screw terminals 2 x 2.5 mm², flexible cable without cable end Tightening torque 5.31...9.73 lbf.in (0.6...1.1 N.m) Setting accuracy of time delay +/- 20 % of full scale Repeat accuracy < 1 % Voltage drift < 2.5 %/V Temperature drift < 0.2 %/°C Minimum pulse duration 26 ms Reset time 50 ms Maximum switching voltage 250 V Mechanical durability 20000000 cycles [Ith] conventional free air thermal 8 A current [Ie] rated operational current <= 2 A at 24 V, DC-13 158 °F (70 °C) conforming to IEC 60947-5-1/1991 <= 2 A at 24 V, DC-13 158 °F (70 °C) conforming to VDE 0660 <= 3 A at 24 V, AC-15 158 °F (70 °C) conforming to IEC 60947-5-1/1991 <= 3 A at 24 V, AC-15 158 °F (70 °C) conforming to VDE 0660 <= 0.1 A at 250 V, DC-13 158 °F (70 °C) conforming to IEC 60947-5-1/1991 <= 0.1 A at 250 V, DC-13 158 °F (70 °C) conforming to VDE 0660 <= 0.2 A at 115 V, DC-13 158 °F (70 °C) conforming to IEC 60947-5-1/1991 <= 0.2 A at 115 V, DC-13 158 °F (70 °C) conforming to VDE 0660 Jun 24, 2018 1 Disclaimer: This documentation is not intended as a substitute for and is not to be used for determining suitability or reliability of these products for specific user applications Minimum switching capacity 10 mAat 12 V Input voltage 110...240 V (Y1) Maximum switching current 10 mA (Y1) Input compatibility 2-wire sensors DC with leakage current < 1 mA <= 50 m (Y1) Marking CE Overvoltage category III conforming to IEC 60664-1 [Ui] rated insulation voltage 250 V conforming to IEC 300 V conforming to CSA Supply disconnection value > 0.1 Uc Operating position Any position without derating factor Surge withstand 2 kV conforming to IEC 61000-4-5 level 3 Power consumption in VA 1.8 VAat 110 V 8.5 VAat 240 V Terminal description (A1-A2)CO (15-16-18)OC_ON (Y1)UNUSED Height 3.07 in (78 mm) Width 0.89 in (22.5 mm) Depth 3.15 in (80 mm) Product weight 0.24 lb(US) (0.11 kg) Environment Immunity to microbreaks 3 ms Standards EN/IEC 61812-1 Product certifications CSA GL UL Ambient air temperature for storage -40...185 °F (-40...85 °C) Ambient air temperature for operation -4...140 °F (-20...60 °C) Relative humidity 15...85 % 3K3 conforming to IEC 60721-3-3 Vibration resistance 0.35 mm 10...55 Hz conforming to IEC 60068-2-6 IP degree of protection IP20 (terminals) IP50 (casing) Pollution degree 3 conforming to IEC 60664-1 Dielectric test voltage 2.5 kV Non-dissipating shock wave 4.8 kV Resistance to electromagnetic fields 9.14 V/yd (10 V/m) conforming to IEC 61000-4-3 level 3 Resistance to fast transients 2 kV conforming to IEC 61000-4-4 level 3 Disturbance radiated/conducted CISPR 11 group 1 - class A CISPR 22 - class A Ordering and shipping details Category 22376 - RELAYS-MEASUREMENT(RM4) Discount Schedule CP2 GTIN 00785901466550 Nbr. of units in pkg. 10 Package weight(Lbs) 0.23999999999999999 Returnability N Country of origin ID Contractual warranty Warranty period 18 months 2 Product data sheet RE8RA31FUTQ Dimensions Drawings Width 22.5 mm Rail Mounting Screw Fixing 3 Product data sheet RE8RA31FUTQ Connections and Schema Internal Wiring Diagram 4 Product data sheet RE8RA31FUTQ Connections and Schema Recommended Application Wiring Diagram 5 Product data sheet RE8RA31FUTQ Connections and Schema Control of Several Relays Control of several relays with a single external control contact The external control contact C may be an electronic control device, for example a true-wire sensor. In this case A1-A2= 24 Vdc and the control device can only control-up to a maximum of 4 relays. 6 Product data sheet RE8RA31FUTQ Connections and Schema Connection of a 2-Wire Sensor Leakage current (open state) if < 1 mA. 7 Product data sheet RE8RA31FUTQ Performance Curves Performance Curves A.C. Load Curve 1 Electrical durability of contacts on resistive loading millions of operating cycles X Current broken in A Y Millions of operating cycles A.C. Load Curve 2 Reduction factor k for inductive loads (applies to values taken from durability curve 1). X Power factor on breaking (cos ϕ) Y Reduction factor k Example: An LC1-F185 contactor supplied with 115 V/50 Hz for a consumption of 55 VA or a current consumption equal to 0.1 A and cos ϕ = 0.3. For 0.1 A, curve 1 indicates a durability of approximately 1.5 million operating cycles. As the load is inductive, it is necessary to apply a 6 reduction coefficient k to this number of cycles as indicated by curve 2. For cos ϕ = 0.3: k = 0.6 The electrical durability therefore becomes:1.5 10 operating cycles x 0.6 = 900 000 operating cycles. 8 D. C. Load Limit Curve X Current in A Y Voltage in V 1 L/R = 20 ms 2 L/R with load protection diode 3 Resistive load 9 Product data sheet RE8RA31FUTQ Technical Description Function C : Off-Delay Relay with Control Signal Description After power-up and closing of the control contact C, the output R closes. When control contact C re-opens, timing T starts. At the end of the timing period, the output(s) R revert(s) to its/their initial state. The second output can be either timed or instantaneous. Function: 1 Output Function: 2 Outputs 2 timed outputs (R1/R2) or 1 timed output (R1) and 1 instantaneous output (R2 inst.) 10 Product data sheet RE8RA31FUTQ Technical Description Legend Relay de-energised Relay energised Output open Output closed C Control contact G Gate R Relay or solid state output R1/R2 2 timed outputs R2 inst.The second output is instantaneous if the right position is selected T Timing period Ta - Adjustable On-delay Tr - Adjustable Off-delay U Supply RE8RA31FUTQ is replaced by: Relay Output RE17RCMU off-delay timing relay - 1 s..100 h - 24..240 V AC - 1 OC Qty 1 Reason for Substitution: End of life | Substitution date: 01 January 2017 11