You may also like
Manufacturer Resources
Spec Sheet
Product Specs
- Accuracy:
- < 0.3%
- Cable Type:
- SOOW-A
- Connection:
- 8 Ft. ( 2.5m ) Cable
- Contact Configuration:
- L1 Switched
- Amperage Rating:
- 1.0A Solid State Output
- Cord Length:
- 8 FT
- Enclosure Material:
- Receptacle and Housing: Die Cast Zinc, Head: Plastic
- Environmental Rating:
- NEMA 4, 4X and 13
- Input Voltage:
- 120Vac
- Led Indicators:
- Lights when output is ON. One LED for each output
- Maximum Ac Current:
- 1.0A
- Notes:
- Sensor head features a programmable output selector switch for NO or NC operation
- Operating Mode:
- Shielded
- Operating Temperature:
- -13° to 158°F (-25° to 70°C)
- Sensor Type:
- Inductive Proximity
- Department:
- Electrical
- Product Length:
- 1.54 IN
- Product Height:
- 4.53 IN
- Product Weight:
- 2.15 LB
- Product Width:
- 1.78 IN
B-LINE E51CNS1S – Frequently Asked Questions
1) Do I have to order a separate normally open and normally closed version of the E51 limit switch style sensor?
No. The sensor head on the E51CNS1S has a programmable output selector switch, so you set NO or NC operation in the field on the same part. That means one item on the shelf covers both logic requirements across a plant.
2) Will this inductive proximity sensor hold up in a washdown area?
It carries NEMA 4, 4X and 13 environmental ratings, which covers hosedown, corrosion resistant and oil-laden environments. The receptacle and housing are die cast zinc with a plastic sensing head, and the cable is SOOW-A, a rubber jacketed type suited to wet and oily machine areas.
3) Does the E51CNS1S come with a cable or do I need to buy a cordset?
The cable is attached. It ships with an 8 ft (2.5 m) SOOW-A cable already terminated to the receptacle, so no separate cordset or connector is required. If your panel is further than 8 feet from the sensing point, plan on a junction box within that run.
4) Is this sensor rated for a cold warehouse or an unheated outdoor conveyor?
Operating range on the E51 sensor is -13 to 158 F (-25 to 70 C), so unheated docks, cold storage vestibules and outdoor conveyor lines in most climates are within range. Below -13 F it is outside its rating.
5) Shielded or unshielded, and can I mount this sensor flush in a steel bracket?
The E51CNS1S is a shielded inductive proximity sensor, so it can be mounted flush in surrounding metal without the metal triggering it. Unshielded sensors give longer sensing range but need a clear zone around the face.
6) Why replace a mechanical limit switch with an E51 limit switch style sensor?
It is built in the limit switch form factor so it fits the same style of mounting and conduit position as a mechanical switch, but there is no plunger or roller lever to wear out. Sensing is inductive and contactless, output is solid state at 1.0A rather than mechanical contacts, and the die cast zinc receptacle and housing take machine-side abuse. Note it senses metal targets only, so anything that relied on a lever being pushed by a non-metallic part needs a different technology.
7) Does the E51CNS1S have built-in short circuit protection on the output?
No. Protection is listed as none on this model, so the 1.0A solid state output should be fused or otherwise protected in the control circuit. Keep the load at or under 1.0A max AC current.
8) How do maintenance techs tell if the E51 sensor is actually seeing the target?
There is an LED that lights when the output is on, one LED per output, so a tech can jog the machine and confirm sensing at the head without meters in the panel. Contact configuration is L1 switched.
9) What are the physical dimensions of the E51CNS1S for laying out a mounting bracket?
Published dimensions are 4.53 in height, 1.78 in width and 1.54 in length, with a unit weight of 2.15 lb. That weight is worth noting on light sheet metal brackets, since it is heavier than a typical barrel-style prox.
10) Is the E51 accurate enough for repeatable position sensing on an indexing machine?
Repeatability is specified at better than 0.3 percent, which is tight enough for indexing, part-present and end-of-travel duty where a mechanical limit switch was previously used.
How fast can I get the B-LINE E51CNS1S delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the B-LINE E51CNS1S come with a warranty?
Absolutely. The B-LINE E51CNS1S is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the B-LINE E51CNS1S?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the B-LINE E51CNS1S from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.