NFPW444-50

The Yokogawa NFPW444-50 is a DC power supply module designed to accept a 24 V DC input and provide a regulated +5.1 V DC output. It supports an input voltage range of 21.6 to 31.2 V DC and delivers an output current of up to 7.8 A. Its electrical ratings and compact dimensions make it suitable for applications requiring a dedicated 5.1 V DC power supply.

Electrical Specifications

The NFPW444-50 accepts a nominal 24 V DC supply, with an allowable input range of 21.6 to 31.2 V DC. This input tolerance defines the operating voltage window for the upstream DC supply.

The module provides a rated output of +5.1 V DC with an output current range of 0 to 7.8 A. The output rating corresponds to a maximum rated power of approximately 39.78 W, calculated from the specified voltage and current. Actual loading must remain within the module's rated output capacity.

Model Configuration

The supplied model description identifies the NFPW444-50 as a standard, non-explosion-protected, basic-type power supply module. The configuration information also lists the following designations:

• 1S: Single-phase version for a single-phase load connected between two phases or between one phase and neutral.
• 5: Standard type without explosion protection.
• 0: Basic type.

The 1S designation describes an AC phase configuration and should not be interpreted as the input configuration of this 24 V DC power supply without confirmation from the applicable Yokogawa ordering documentation.

Physical Specifications

The module has approximate dimensions of 146.5 x 49.7 x 130 mm and a weight of 0.6 kg. These values are useful for checking panel space, mounting arrangements and replacement-part handling.

Technical Specifications

Parameter	Specification
Model	NFPW444-50
Brand	Yokogawa
Product Type	Power Supply Module
Input Type	DC
Rated Input Voltage	24 V DC
Input Voltage Range	21.6 to 31.2 V DC
Rated Output Voltage	+5.1 V DC
Rated Output Current	0 to 7.8 A
Calculated Maximum Output Power	Approximately 39.78 W
Explosion Protection	No
Module Type	Basic Type
Dimensions (L x W x H)	Approx. 146.5 x 49.7 x 130 mm
Weight	0.6 kg

Frequently Asked Questions

Q: What input voltage does the Yokogawa NFPW444-50 require?

A: The rated input voltage is 24 V DC, with an allowable operating range of 21.6 to 31.2 V DC. The upstream DC supply should remain within this range.

Q: What is the maximum output current of the NFPW444-50?

A: The rated output current is 0 to 7.8 A at +5.1 V DC, corresponding to approximately 39.78 W at the maximum rated output.

Q: Is the NFPW444-50 explosion-protected?

A: No. The supplied configuration information identifies designation 5 as the standard type without explosion protection.

---