The Keyence SJ-E252H is part of the SJ-E series of bar-type static eliminators. This high-end model targets static electricity problems across very wide manufacturing areas. Its 2480 mm total length and 81 electrode probes suit large-scale equipment. Specifically, the device uses a pulse AC corona discharge method with ±8000 V applied voltage. This approach produces abundant ions for fast static decay.
The SJ-E252H uses a shockless resistive coupling structure. This design keeps operators safe during normal operation. Meanwhile, the Hi-Power I.C.C. method continuously monitors and adjusts ion output. As a result, ion balance stays within ±30 V under standard measurement conditions. Furthermore, the effective static elimination range reaches 2580 mm at a 50 mm installation distance. The unit supports installation distances from 50 mm to 2000 mm, so it fits many machine layouts.
Power requirements for the Keyence SJ-E252H are flexible. The unit accepts 24 to 36 VDC ±10% input. Current consumption is 700 mA at 24 V or 500 mA at 36 V. For integration, the device provides NPN open collector outputs for ion level warning, condition warning, and alarm signals. Additionally, a static elimination stop input allows external control via NPN open collector or dry contact. The unit also supports remote control communication for parameter adjustments. An Rc 1/8 air connection port enables compressed air supply at 0.1 to 0.5 MPa, with 0.2 MPa recommended.
The electrode probes use tungsten material for durability and stable ion emission. The main body consists of ABS, PBT, PP, LCP, PPS, SPS, and SUS. This combination balances structural rigidity with chemical resistance. Operating temperature ranges from 0 to +40 °C, while relative humidity must stay between 35 and 85 % RH without condensation. The unit weighs 2.60 kg. No specific IP protection rating is assigned to this model.
First, mount the SJ-E252H at the planned location using appropriate brackets. Maintain an installation distance between 50 mm and 2000 mm from the target surface. Next, connect the 24–36 VDC power supply according to the wiring diagram. Then, wire the control input and output signals to the host controller. For air-assisted operation, attach the Rc 1/8 fitting and set the supply pressure to 0.2 MPa. Finally, verify the ion balance using a charged plate monitor before starting production.
Keyence SJ-E252H Bar-Type Ionizer × 1
Installation Bracket Set × 1
Operation Manual × 1
Q1: What is the effective length of the SJ-E252H?
The effective static elimination range is 2580 mm when measured at a 50 mm installation distance.
Q2: Does this ionizer require compressed air to operate?
No, the SJ-E252H can eliminate static without air supply. However, air assistance at 0.1–0.5 MPa improves ion delivery to distant targets.
Q3: What electrode material does the SJ-E252H use?
This model uses tungsten electrode probes. Tungsten offers excellent durability and stable ion emission over extended use.
Q4: Can I control the SJ-E252H remotely?
Yes, the unit supports remote control communication. It also provides NPN open collector outputs for alarms and a stop input for external control.
Q5: What is the recommended air pressure for the SJ-E252H?
Keyence recommends 0.2 MPa air pressure. The acceptable range is 0.1 MPa to 0.5 MPa.
| Brand Name | |
| Model No. | SJ-E252H |
| Product Type | Bar-Type Static Eliminator |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
