Main range of productZelio Time product or component typeIndustrial timing relay component nameRE7 time delay typeLLtLi time delay range0.05 s...300 h Complementary discrete output typeRelay contacts material90/10 silver nickel contacts width pitch dimension22.5 mm [Us] rated supply voltage110...240 V AC 50/60 Hz24 V AC/DC 50/60 Hz42...48 V AC/DC 50/60 Hz voltage range0.85...1.1 Us connections - terminalsScrew terminals, 2 x 1.5 mm² flexible with cable endScrew terminals, 2 x 2.5 mm² flexible without cable end tightening torque0.6…1.1 N.m setting accuracy of time delay+/- 10 % of full scale repeat accuracy+/- 0.2 % temperature drift< 0.07 %/°C voltage drift< 0.2 %/V minimum pulse duration20 ms reset time50 ms maximum switching voltage250 V AC/DC mechanical durability20000000 cycles [Ith] conventional free air thermal current8 A maximum [Ie] rated operational current2 A DC-13 24 V at 70 °C conforming to IEC 60947-5-1/1991/VDE 06600.1 A DC-13 250 V at 70 °C conforming to IEC 60947-5-1/1991/VDE 06600.2 A DC-13 115 V at 70 °C conforming to IEC 60947-5-1/1991/VDE 06603 A AC-15 at 70 °C conforming to IEC 60947-5-1/1991/VDE 0660 minimum switching capacityat 12 V 10 mA input voltage< 60 V X1Z2 terminal(s)< 60 V X2Z2 terminal(s) maximum switching current1 mA (X1Z2)1 mA (X2Z2) input compatibility3/4 wires sensors PNP/NPN without internal load <50 m X1Z2 terminal(s)3/4 wires sensors PNP/NPN without internal load <50 m X2Z2 terminal(s) potentiometer characteristicLinear 47 kOhm (+/- 20 %), 0.2 W, cable length <25 m Z1Z2 terminal(s) markingCE overvoltage categoryIII conforming to IEC 60664-1 [Ui] rated insulation voltage250 V between contact circuit and control inputs IEC certified250 V between contact circuit and power supply IEC certified300 V between contact circuit and control inputs CSA certified300 V between contact circuit and power supply CSA certified supply disconnection value> 0.1 Uc operating positionAny position without derating surge withstand2 kV conforming to IEC 61000-4-5 level 3 power consumption in VA0.7 VA at 24 V1.6 VA at 48 V1.8 VA at 110 V8.5 VA at 240 V maximum power consumption in W0.5 W at 24 V1.2 W at 48 V terminal description(B1-A2)COALT(15-16-18)OC_OFF height78 mm width22.5 mm depth80 mm net weight0.15 kg Environment immunity to microbreaks3 ms standardsEN/IEC 61812-1 product certificationsULCSAGL ambient air temperature for storage-40…85 °C ambient air temperature for operation-20…60 °C relative humidity15…85 % 3K3 conforming to IEC 60721-3-3 vibration resistance0.35 mm (f= 10…55 Hz) conforming to IEC 60068-2-6 shock resistance15 gn for 11 ms conforming to IEC 60068-2-27 IP degree of protectionIP20 (terminals)IP50 (housing) pollution degree3 conforming to IEC 60664-1 dielectric strength2.5 kV non-dissipating shock wave4.8 kV resistance to electrostatic discharge6 kV in contact conforming to IEC 61000-4-2 level 38 kV in air conforming to IEC 61000-4-2 level 3 resistance to electromagnetic fields10 V/m conforming to IEC 61000-4-3 level 3 resistance to fast transients2 kV conforming to IEC 61000-4-4 level 3 disturbance radiated/conductedCISPR 22 - class ACISPR 11 group 1 - class A Contractual warranty Warranty18 months
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Dimensions DrawingsWidth 22.5 mmRail MountingScrew Fixing
Connections and SchemaInternal Wiring DiagramRecommended Application Wiring DiagramSelection of Starting Phase1Supply212…48 V324 V6Start during the On-delay period: X2, Z2 linked.Start during the Off-delay period: X2, Z2 not linked.Control of Several Relays
Control of several relays with a single external control contactConnection of an External Control Contact Without Using Terminal Z2
Direct current supply only.
It is advisable to follow the recommended wiring schemes detailed above if the restrictions given are taken into account.
Direct current supply only.
It is advisable to follow the recommended wiring schemes detailed above if the restrictions given are taken into account.Connection 3-Wire NPN or PNP SensorConnection 3-Wire NPN or PNP Sensor Without Using Terminal Z2Connection NPN
It is advisable to follow the recommended wiring schemes detailed above if the restrictions given are taken into account.Connection PNPConnection of Potentiometer7Off-delay adjustment (tr) (contact 15/16 closed).8On-delay adjustment (ta) (contact 15/18 closed).Connection Precautions
UNEXPECTED EQUIPMENT OPERATION
No galvanic isolation between supply terminals and control inputs.
Failure to follow these instructions can result in death, serious injury, or equipment damage.
Performance CurvesPerformance CurvesA.C. Load Curve 1
Electrical durability of contacts on resistive loading millions of operating cyclesXCurrent broken in AYMillions of operating cyclesA.C. Load Curve 2
Reduction factor k for inductive loads (applies to values taken from durability curve 1).XPower factor on breaking (cos ϕ)YReduction 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 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:1.5 106 operating cycles x 0.6 = 900 000 operating cycles.D. C. Load Limit CurveXCurrent in AYVoltage in V1L/R = 20 ms2L/R with load protection diode3Resistive load
Technical DescriptionFunction L : Asymmetrical Flasher Relay (Starting Pulse Off)Description
Repetitive cycle comprises of two, independently adjustable timing periods Ta and Tr. Each timing period corresponds to a different state of the output R.Function: 1 OutputFunction Li : Asymmetrical Flasher Relay (Starting Pulse On)Description
Repetitive cycle comprises of two, independently adjustable timing periods Ta and Tr. Each timing period corresponds to a different state of the output R.Function: 1 OutputFunction Lt: Asymmetrical Flashing with Partial Stop of TimingDescription
Repetitive cycle comprises of two, independently adjustable timing periods Ta and Tr. Each timing period corresponds to a different state of the output R.
Gate control contact G can be operated to partially stop timing periods Ta and Tr.Function: 1 Output
Tr = t1 + t2 + ...
Ta = t’1 + t’2 +...Legend
Relay or solid state outputR1/R2
2 timed outputsR2 inst.
The second output is instantaneous if the right position is selectedT
Timing periodTa -
Adjustable On-delayTr -