Manual Motor Starter Circuit Breaker PKZM 1-4 48A 50 60 Hz | Klockner Moeller
Need More Details?
If you’d like to check stock availability, request the latest price, or view more product images, simply click the "Request for Price" button and our team will assist you promptly.

The Klockner Moeller PKZM 1‑4 48 A Manual Motor Starter is an industrial‑grade protective device designed to safeguard and manually control three‑phase electric motors. Combining manual switching, adjustable overload protection, and short‑circuit protection, the PKZM 1‑4 ensures safe motor start/stop control while protecting against overcurrent, phase failure, and fault conditions. Ideal for motor control panels, pump systems, compressors, conveyors, and machinery in heavy‑duty industrial environments, this motor starter delivers dependable performance and easy manual operation.
Key Features
-
Manual on/off motor control combined with reliable overload and short‑circuit protection
-
Adjustable overload setting to match motor full‑load current for safe and accurate protection
-
Built-in short‑circuit protection to safeguard equipment and wiring under fault conditions
-
Compact 3‑pole design suitable for standard industrial motor control panels and contactor combinations
-
Easy manual operation and reset — convenient for maintenance, motor testing, or intermittent duty applications
Specifications
-
Product Model: PKZM 1‑4
-
Manufacturer: Klockner Moeller
-
Type: Manual motor starter / circuit breaker for 3‑phase motors
-
Current Rating: 48 A (adjustable overload as per motor requirements)
-
Frequency: 50 / 60 Hz
-
Poles: 3‑pole (3-phase)
-
Application: Motor protection and manual start/stop control for industrial motors, pumps, compressors, conveyors, HVAC systems, and general machinery
-
Use Case: New installations, control panel design, replacement, or retrofits requiring manual control with built-in protection
The Klockner Moeller PKZM 1‑4 48 A manual motor starter provides robust protection and manual control in one compact unit — a reliable choice for engineers, maintenance teams, and system integrators managing motor-driven equipment in industrial, manufacturing, or process-control settings.
Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.