Keyence ES-21AC

Amplifier Unit, AC Type. . Series: Separate Amplifier Proximity Sensor. Series code: ES series

MPN: ES-21AC
Category: Separate Amplifier Proximity Sensor

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12-month warranty (new) · 3-month (used/refurbished)
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What is the Keyence ES-21AC?

Amplifier Unit, AC Type. ES-21AC. Series: Separate Amplifier Proximity Sensor. Series code: ES series

Specifications

Model Name	Amplifier Unit, AC Type
Model Code	ES-21AC
Series Title	Separate Amplifier Proximity Sensor
Series Code	ES series
Data Sheet URL	https://www.keyence.com/download/download/confirmation/?dlSeriesId=WS_SR_es&dlModelId=PM_01521AC&dlSiteId=1&dlLanguageId=en-US&dlLangType=en-US
CAD URL	https://www.keyence.com/products/sensor/proximity/es/downloads/?mode=cd&modelId=PM_01521AC
Manuals URL	https://www.keyence.com/products/sensor/proximity/es/downloads/?mode=ma&modelId=PM_01521AC
Model	ES-21AC*1
Type	AC
Operation mode	N.C.
Indicator	Output: Red LED
Output	Thyristor 240 VAC, 5 to 300 mA
Disconnection alarm output	―
Leakage current (OFF time)	0.2 mA max.
Response time	10 ms max.
Temperature characteristics	±8% of detecting distance at 23°C 73.4°F, within 0 to 50°C 32 to 122°F
Sensitivity adjustment	15-turn trimmer
Rating - Power voltage	85 to 240 VAC 50/60 Hz
Rating - Current/power consumption	1 VA max.
Environmental resistance - Ambient temperature	0 to +50 °C 32 to 122 °F
Environmental resistance - Relative humidity	35 to 85 % RH (No condensation)
Weight	Approx. 125 g

ES-21AC: frequently asked questions

When can ES-21AC be shipped?

ES-21AC is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.

Can I pick up ES-21AC in person?

Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.

Is express delivery available?

Yes — mention it when you request a quote for ES-21AC and we'll include express shipping options in our reply.

My factory is down and I need this urgently — can you help?

For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for ES-21AC, subject to availability and destination.