Product Model
CT-ERS.21S
Selling Points
- 1Offers 10 time ranges from 0.05 s to 300 h.
- 2Operates with 24 - 240 V AC / DC.
- 3Features 2 c/o (SPDT) contacts rated at 250 V / 4 A.
- 4Includes a sealable transparent cover for protection against unauthorized changes.
- 5Built with screw connection technology and double-chamber cage connection terminals.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
| Parameter | Value | Parameter | Value |
|---|---|---|---|
Product Net Width | 22.5 mm | Product Net Height | 85.6 mm |
Product Net Depth / Length | 103.7 mm | Product Net Weight | 0.13 kg |
Timer Relay Type | ON-Delay | Time Range | 0.05 s ... 300 h |
Rated Control Supply Voltage (Us) | 24 ... 240 V AC/DC | Rated Operational Voltage | Auxiliary Circuit 250 V |
Rated Frequency (f) | 50 / 60 Hz DC | Output | 2 c/o (SPDT) contacts |
Terminal Type | Screw Terminals | Rated Operational Current AC-12 (Ie) | (230 V) 4 A |
Rated Operational Current AC-15 (Ie) | (230 V) 3 A | Rated Operational Current DC-12 (Ie) | (24 V) 4 A |
Rated Operational Current DC-13 (Ie) | (24 V) 2 A | Minimum Switching Capacity | 12 V 100 mA |
Rated Impulse Withstand Voltage (Uimp) | Input Circuit 4 kV Output Circuit 1 / Output Circuit 2 4 kV | Rated Insulation Voltage (Ui) | Input Circuit / Output Circuit 500 V Output Circuit 1 / Output Circuit 2 300 V |
Degree of Protection | Housing IP50 Terminals IP20 | Overvoltage Category | III |
Pollution Degree | 3 | Short-Circuit Protective Devices | Output Circuit NC - F Type Fuses 6 A Output Circuit NO - F Type Fuses 10 A |
Electrical Durability | AC-12 100000 cycle | Mechanical Durability | 30000000 cycle |
Connecting Capacity | Flexible with Ferrule 1x 0.5 ... 2.5 mm² Flexible with Ferrule 2x 0.5 ... 1.5 mm² Flexible with Insulated Ferrule 1x 0.5 ... 2.5 mm² Flexible with Insulated Ferrule 2x 0.5 ... 1.5 mm² Flexible 1x 0.5 ... 2.5 mm² Flexible 2x 0.5 ... 1.5 mm² Rigid 1x 0.5 ... 4 mm² Rigid 2x 0.5 ... 2.5 mm² | Tightening Torque | 0.6 ... 0.8 N·m |
Wire Stripping Length | 8 mm | Recommended Screw Driver | 0.8 x 4 4.5 Pozidriv 1 |
Mounting Position | 1 ... 6 | Mounting on DIN Rail | TH35-15 (35 x 15 mm Mounting Rail) acc. to IEC 60715 TH35-7.5 (35 x 7.5 mm Mounting Rail) acc. to IEC 60715 |
Standards | CAN/CSA C22.2 No.14 IEC/EN 63000 IEC/EN 61812-1 UL 508 | Maximum Operating Voltage UL/CSA | Output Circuit 300 V AC |
Contact Rating UL/CSA | B300 | Connecting Capacity UL/CSA | Flexible 1x 18-14 AWG Flexible 2x 18-16 AWG Rigid 1x 20-12 AWG Rigid 2x 20-14 AWG |
Tightening Torque UL/CSA | 7.08 in·lb | Pilot Duty UL/CSA | B300 |
Flammability According to UL94 | V-0 | Ambient Air Temperature | Operation -40 ... +60 °C Storage -40 ... +85 °C |
Maximum Operating Altitude Permissible | Without Derating 2000 m | Object Classification Code | K |
ETIM 7 | EC001439 - Timer relay | ETIM 8 | EC001439 - Timer relay |
ETIM 9 | EC001439 - Timer relay | eClass | V11.0 : 27371605 |
UNSPSC | 39122329 | E-Number (Finland) | 2712202 |
E-Number (Norway) | 4187946 | E-Number (Sweden) | 4033114 |
Manufacturer ID | 1SVR730100R0300 |
Specifications may be subject to change without notice