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Dayton Supplementary Protector: 50 A Amps, 440V DC, 10kA at 440V DC, Screw Clamp - DC-Only Rated, 2-Pole UL1077 DIN Rail-Mount Supplementary Protectors
DaytonDC-Only Rated, 2-Pole UL1077 DIN Rail-Mount Supplementary Protectors

Dayton Supplementary Protector: 50 A Amps, 440V DC, 10kA at 440V DC, Screw Clamp

The DAYTON NDB2Z-63 C50/2 is a 50 A, DC-only rated, 2-pole UL1077 DIN rail-mount supplementary protector with a C curve type. It is rated for 440V DC with a maximum interrupting rating of 10kA at 440V DC and features…

SKU 3G-OTH-22362

Brand
Dayton
Item
Supplementary Protector: 50 A Amps, 440V DC, 10kA at 440V DC, Screw Clamp
Category
DC-Only Rated, 2-Pole UL1077 DIN Rail-Mount Supplementary Protectors
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Technical Specifications

Dayton
Manufacturer Part Number
5MLE2
Series
NDB2Z-63 C50/2
Type
10kA at 440V DC, Screw Clamp, NDB2Z-63 C50/2
DC
440V
Curve Type
C
Max. AIR Rating
10kA at 440V DC
AC Voltage Rating
Not Rated
DC Voltage Rating
440V DC
Terminal Connection
Screw Clamp
View Full Spec Sheet

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Dayton Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The DAYTON NDB2Z-63 C50/2 is a 50 A, DC-only rated, 2-pole UL1077 DIN rail-mount supplementary protector with a C curve type. It is rated for 440V DC with a maximum interrupting rating of 10kA at 440V DC and features screw clamp terminals. This device is not rated for AC voltage.

Frequently Asked Questions

What is the DAYTON NDB2Z-63 C50/2 supplementary protector used for?

The DAYTON NDB2Z-63 C50/2 is a DC-only rated supplementary protector used to protect industrial DC circuits from overcurrent and short circuits. It is commonly applied in control panels, DC power distribution, and automation systems where a 50 A, 440V DC rating is required.

What are the specifications of the DAYTON 5MLE2 supplementary protector?

The DAYTON 5MLE2 (NDB2Z-63 C50/2) is a 50 A, 2-pole DC-only supplementary protector with a C curve type. It is rated for 440V DC with a maximum interrupting rating of 10kA at 440V DC. It features screw clamp terminals and is UL1077 listed for DIN rail mounting. It is not rated for AC voltage.

Where to buy the DAYTON 5MLE2 supplementary protector worldwide?

The DAYTON 5MLE2 supplementary protector is available to order through 3G Electric, a global industrial equipment distributor. 3G Electric handles full logistics, customs clearance, and delivery to worldwide destinations, ensuring reliable sourcing for this DC-rated protector.

How to install the DAYTON NDB2Z-63 C50/2 on a DIN rail?

To install the DAYTON NDB2Z-63 C50/2, snap the device onto a standard 35 mm DIN rail until it locks. Connect the DC supply and load wires using the screw clamp terminals, tightening to the manufacturer's recommended torque. Ensure the circuit is de-energized before installation and follow local electrical codes.

Used in

Common applications for Dayton
HVAC ventilation — DAYTON centrifugal upblast roof exhaust fans (SKU 7M7U3) for kitchen exhaust systems
Mechanical power transmission — DAYTON HTD timing pulleys (SKU 404GV0) for conveyor belt drives
Process water handling — DAYTON self-priming centrifugal pumps (SKU 2ZXT4) for dewatering or transfer
Roofing and building services — DAYTON fixed ventilated roof curbs (SKU 4HX59) for filtered supply fan installations
Material handling — DAYTON latch assemblies (SKU 2KEN4) for electric chain hoist hook safety
Industrial air movement — DAYTON downblast roof exhaust fans (SKU 3HFL9) for clean air exhaust in manufacturing plants

Dayton Products

3G Electric supplies Dayton dc-only rated, 2-pole ul1077 din rail-mount supplementary protectors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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