Super Merchant Motor Circuit Breaker - Z-MS - 2P - 0.37kW - 2.5-4A
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Product Information
Full details
The Super Merchant Motor Circuit Breaker Z-MS is a precision-engineered protection device designed for industrial professionals managing small-scale motor applications. Its key benefit lies in its reliable thermomagnetic protection, which prevents damage from overloads and short circuits in systems requiring 2.5-4A current levels. While it offers robust performance for 0.37kW motors, users should note that the unit features an IP20 protection rating, meaning it is intended for use in enclosed panels and is not suitable for harsh, dust-prone, or wet environments without an additional protective housing.
All features
| Series | Z-MS |
|---|---|
| Model Part Number | 1115-237YB-FG002 |
| Brand | Super Merchant |
Extended Product Information
FAQs
What is the primary application for the Z-MS breaker?
It is designed specifically for protecting industrial motor circuits up to 0.37kW.
What does the IP20 rating mean for installation?
IP20 indicates the unit is protected against solid objects larger than 12.5mm but has no protection against liquids. It must be installed in a closed electrical enclosure.
Can I use this for a 3-phase motor?
No, this is a 2-pole device intended for 2-phase or single-phase motor configurations.
What is the maximum short-circuit release current?
The instantaneous short-circuit release is calibrated to reach 52A.
How do I adjust the current setting?
Use the adjustment dial on the face of the unit to set the current between 2.5A and 4A according to your motor's requirements.
Troubleshooting
Breaker trips immediately upon starting the motor
Verify that the current setting dial is not set too low for the motor's inrush current or check for an existing short circuit in the wiring.
Breaker fails to stay in the ON position
Check for sustained overload conditions or a persistent fault on the load side; ensure the supply voltage is stable.
Overheating detected at terminal connections
Power down the system and ensure the terminal screws are tightened to the manufacturer's specified torque.
Pros and Cons
Pros
- Reliable thermomagnetic sensing for motor longevity
- Compact form factor saves valuable panel space
- Easy-to-use screw terminals for secure wiring
- Precise 2.5-4A adjustment range for motor tuning
Cons
- IP20 rating requires a protective enclosure in dusty environments
- Limited to 2-pole applications
- Not suitable for outdoor use without specialized shielding
Setup, Compatibility & Care
Installation should be performed by qualified electrical personnel. The Z-MS mounts easily onto standard DIN rails within industrial control cabinets.
- Verify Ratings: Ensure the motor application is rated for 0.37kW and that the supply voltage matches the device specifications.
- Wiring: Use appropriately sized copper conductors for the terminals. Tighten the screws to the recommended torque to avoid loose connections, which can lead to localized heating.
- Calibration: Use a precision screwdriver to set the current adjustment dial to the rated full-load amperage of your motor.
- Maintenance: Periodically inspect terminal connections for oxidation or looseness. Since the unit is IP20 rated, ensure the cabinet interior remains clean and dry. Do not attempt to open the sealed casing, as this will void protection integrity.