Product Model
ELR W3- 24DC/500AC- 2I

Selling Points
- 1Reversing 3~ AC Motors: Suitable for reversing 3-phase AC motors up to 500V AC and 2A output current.
- 224V DC Control Voltage: Operates with a 24V DC control voltage for efficient and reliable control.
- 3Adjustable Overload Shutdown: Ensures safe operation with an adjustable overload shutdown feature.
- 4SIL 3/PL e Safety Level: Meets high safety standards with SIL 3 and PL e ratings.
- 5Space-Saving Design: Compact design with a width of 22.5 mm, ideal for space-constrained applications.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Parameter | Value | Parameter | Value |
---|---|---|---|
Product type | Hybrid motor starters | Product family | CONTACTRON |
Operating mode | 100% operating factor | Article revision | 14 |
Number of phases | 3 | Motor starter type | Reversing starter |
Switching frequency | ≤ 2 Hz (Load-dependent) | Maximum power dissipation for nominal condition | 2.2 W |
Switching frequency | ≤ 2 Hz (Load-dependent) | Maximum power dissipation | 3.3 W |
Minimum power dissipation | 1.1 W | Rated control circuit supply voltage U | 24 V DC |
Control supply voltage range | 19.2 V DC ... 30 V DC | Rated control supply current I | 40 mA |
Protective circuit | Surge protection
Reverse polarity protection | Rated insulation voltage | 500 V |
Rated surge voltage | 6 kV | Overvoltage category | III |
Degree of pollution | 2 | Insulation characteristics between the control input and control supply voltage, and auxiliary circuit to the main circuit | Safe isolation (IEC 60947-1) at operating voltage ≤ 300 V AC
Basic insulation (IEC 60947-1) at operating voltage 300 V AC ... 500 V AC |
Isolation characteristics between the control input and control supply voltage to auxiliary circuit | Safe isolation (IEC 60947-1) in the auxiliary circuit ≤ 300 V AC | Input name | Control input right/left |
Rated actuating voltage U | 24 V DC | Triggering voltage range | 19.2 V DC ... 30 V DC |
Rated actuating current I | 5 mA | Switching threshold | 9.6 V (“0” signal)
19.2 V (“1” signal) |
Switching level | < 5 V DC (For EMERGENCY STOP) | Typical response time | < 35 ms |
Typical turn-off time | < 40 ms | Rated operating voltage U | 500 V AC |
Operating voltage range | 42 V AC ... 550 V AC | Rated operating current I | 2.4 A (AC-51)
2.4 A (AC-53a) |
Mains frequency | 50/60 Hz | Load current range | 180 mA ... 2.4 A (see to derating) |
Trigger characteristic in acc. with IEC 60947-4-2 | Class 10A | Cooling time | 20 min (for auto reset) |
Leakage current | 0 mA | Residual voltage | < 0.3 V |
Surge current | 100 A (t = 10 ms) | Protective circuit | Surge protection |
Note | Confirmation: floating change-over contact, signal contact | Contact switching type | 1 changeover contact |
Switching capacity in accordance with IEC 60947-5-1 | 3 A (230 V, AC15)
2 A (24 V, DC13) | Residual voltage | < 0.5 V |
Connection method | Screw connection | Stripping length | 8 mm |
Screw thread | M3 | Conductor cross section rigid | 0.2 mm² ... 2.5 mm² |
Conductor cross section flexible | 0.2 mm² ... 2.5 mm² | Conductor cross section AWG | 24 ... 14 |
Tightening torque | 0.5 Nm ... 0.6 Nm
5 lb | Connection method | Screw connection |
Stripping length | 8 mm | Screw thread | M3 |
Conductor cross section rigid | 0.2 mm² ... 2.5 mm² | Conductor cross section flexible | 0.2 mm² ... 2.5 mm² |
Conductor cross section AWG | 24 ... 14 | Tightening torque | 0.5 Nm ... 0.6 Nm
5 lb |
Status display | LED (yellow) | Operating voltage display | Green LED |
Error indication | Red LED | Width | 22.5 mm |
Height | 107 mm | Depth | 114 mm |
Flammability rating according to UL 94 | V0 (Housing) | Degree of protection | IP20 |
Ambient temperature (operation) | -25 °C ... 70 °C (observe derating) | Ambient temperature (storage/transport) | -40 °C ... 80 °C |
Altitude | ≤ 2000 m | Certificate | UKCA-compliant |
Identification | II (2) G [Ex e] [Ex d] [Ex px]
II (2) D [Ex t] [Ex p] | Certificate | PTB 07 ATEX 3145 |
Certificate | NLDX.E228652 | Identification | ≤ 3 |
Note | Safe shutdown | Identification | 2 |
Note | Motor protection | Identification | ≤ e |
Note | Safe shutdown | Identification | ≤ 3 |
Note | Safe shutdown | SCCR | 100 kA (500 V AC (fuse: 30 A class CC/30 A class J (high fault)))
5 kA (500 V AC (fuse: 20 A RK5 (standard fault))) |
FLA | 2.4 A (500 V AC) | Group installation | 20 A (class RK5, SCCR 5kA, #24 - 14 AWG max. solid and stranded)
30 A (class CC or J, SCCR 100kA, #24 - 14 AWG max, solid and stranded) |
Category code | NLDX | Standards/regulations | EN 60947
IEC 61508
ISO 13849 |
Mounting type | DIN rail mounting | Assembly note | Can be aligned with spacing = 20 mm |
Mounting position | Vertical (horizontal DIN rail) |
Specifications may be subject to change without notice