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Manufacturer Resources
Product Specs
- Contact Configuration:
- 1MK-1BK
- Frame Size:
- K-frame
- Series:
- Series C
- Special Features:
- Pigtail leads
- Used With:
- For type K-frame breakers
- Department:
- Electrical
- Product Group:
- Sensors & Switches
- Product Subgroup:
- Switches
- Product Type:
- HMCP Alarm switch factory installation kit
- Product Length:
- 5.5 IN
- Product Details:
- HMCP Alarm switch factory installation kit
- Mounting Method:
- Right
- Product Height:
- 3 IN
- Product Weight:
- .35 LB
- Product Width:
- 3.3 IN
B-LINE A1L3RPK – Frequently Asked Questions
1) Which Eaton breakers does the A1L3RPK alarm switch fit?
The A1L3RPK is built for Eaton Series C molded case circuit breakers in the K-frame size. It will not fit other frame sizes, so confirm the breaker on the panel schedule is a K-frame before ordering.
2) What contacts do I get with the Eaton K-frame alarm switch kit, and how do I wire it?
Contact configuration is 1MK-1BK, so you get one make contact and one break contact off the single switch. It comes with pigtail leads, so you land the leads in your wireway or control terminal block rather than terminating at screw terminals on the switch itself.
3) Which side of the breaker does the A1L3RPK mount on?
It is a right-side mount kit. If the accessory pocket you need to fill on the K-frame breaker is the left pocket, or that pocket is already occupied by an auxiliary or shunt trip, this one won't go where you need it.
4) What does an alarm switch on a molded case breaker actually do?
An alarm switch signals that the breaker has tripped on an overcurrent or fault condition, as opposed to being switched off by hand. That is what separates it from an auxiliary switch, which just follows contact position. On the Eaton Series C K-frame, the A1L3RPK gives you that trip signal through a 1MK-1BK contact set you can run back to a BMS, annunciator, or PLC input.
5) Can I add this alarm switch to a K-frame breaker that is already installed, or does it have to be ordered with the breaker?
It ships as a factory installation kit for the HMCP style K-frame breaker, meaning the parts and instructions for fitting the switch into the breaker's accessory pocket come in the box. Plan on de-energizing and pulling the breaker to install it, since the cover has to come off to seat the switch and route the pigtails.
6) I need remote trip indication on a motor circuit protector. Is A1L3RPK the right part?
Yes, if the protector is an Eaton HMCP on a Series C K-frame. That is exactly what this kit is for, and the 1MK-1BK contacts give you both a normally open and a normally closed path for the indication circuit. For any other frame size or a left-hand pocket, you need a different accessory.
How fast can I get the B-LINE A1L3RPK 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 A1L3RPK come with a warranty?
Absolutely. The B-LINE A1L3RPK 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 A1L3RPK?
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product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the B-LINE A1L3RPK from ZenSupply?
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every order.
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