E7902S - Switch IFM - Free user manual and instructions
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| Brand | IFM |
| Model | E7902S |
| Product Type | Switch |
| Function | Switching controlled circuits on and off |
| Design | Compact device for panel or DIN rail mounting |
| Mounting Type | DIN rail (35 mm) or screw mounting |
| Rated Voltage | 24 V DC |
| Operating Voltage Range | 20 to 30 V DC |
| Contact Configuration | SPDT (1 form C) |
| Max. Current Rating | 4 A |
| Degree of Protection | IP67 |
| Housing Material | Polyamide (PA) with metal inserts |
| Status Indication | LED (green/red) |
| Connection Type | Screw terminals, max 1.5 mm² |
| Dimensions (W × H × D) | 34 × 78 × 55 mm |
| Weight | 85 g |
| Operating Temperature | -25 °C to +70 °C |
| Maintenance | Wipe with dry cloth; inspect terminals periodically |
| Safety Features | Short-circuit proof, reverse polarity protected, IEC/EN compliant |
| Spare Parts & Repairability | Replaceable terminals; replacement module available |
| General Information | CE and RoHS compliant; made for industrial environments |
Frequently Asked Questions - E7902S IFM
How do I install the IFM E7902S switch?
Mount the E7902S switch on a standard DIN rail, connect the supply voltage and signal wires to the labeled terminals, and torque the screws as indicated. Verify that the power is off during installation to avoid electric shock.
What is the recommended operating voltage range?
The device is designed for 24 V DC control circuits. Check the nameplate for exact limits, but do not exceed the rated voltage by more than 10% to prevent damage.
How can I determine if the switch is working correctly?
Use the integrated LED status indicator: when the output is active, the LED lights up. Test the switching function with an ohmmeter after disconnecting the unit.
Can this switch handle AC loads?
No, the E7902S is intended for DC switching only. Applying AC can damage the internal contacts. For AC loads, use an appropriate switching relay.
What cleaning methods are safe for this device?
Clean the housing with a soft, dry, lint-free cloth. Do not use solvents or water sprays, as these may impair the sealing and electrical safety.
What is the degree of protection and can I use it outdoors?
The switch has an IP67 enclosure, making it dust-tight and protected against temporary immersion. It can be used in outdoor or wet areas if the cable glands are correctly tightened.
What should I do if the switch does not switch despite input signal?
First check the supply voltage and wiring polarity. Then inspect the input signal level and confirm the output load is within the rated current. If needed, test with a replacement unit.
Are replacement parts available for the E7902S?
Yes, the terminal blocks and mounting accessories are individually replaceable. The contact module itself should be replaced as a whole to maintain safety and performance.
Is there a risk of electrical shock during maintenance?
Always disconnect the power supply before opening the wiring compartment or touching terminals. The product meets IEC/EN electrical safety standards when installed correctly.
What is the expected lifespan / switching cycles?
Under nominal load, the mechanical contacts are rated for several million switching operations. The exact lifetime depends on load current and switching frequency.
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USER MANUAL E7902S IFM
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Product information
Brand : IFM
Model : E7902S
Category : Switch