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Honeywell FC-PSUNI2424 Power Supply Unit

Configured for 24 VDC power conversion and overvoltage protection execution in industrial control power networks, the Phoenix Contact FC-PSUNI2424 (PSUNI2424 Power Supply Unit) provides direct physical and electrical power regulation.

Hardware Specifications

Parameter	Specification
Model	FC-PSUNI2424
Brand	Honeywell
Origin	Not specified
Weight	2.9 kg
Dimensions	370 x 159 x 67.3 mm (W x H x D)
Operating Temp	-40 deg C to 70 deg C
Power Consumption	600 W output power; input power 712 W at 115 VAC, 691 W typical at 230 VAC
Input Voltage	100-120 VAC / 220-240 VAC nominal; operational range 85-265 VAC
Input Frequency Range	45-66 Hz
Input Current	6.2 A at 115 VAC; 3.1 A at 230 VAC at rated DC output load
Output Voltage	25.7 V no load; 25.1 V with 24 A static load
Output Power	600 W
Power Efficiency	80% at 100 VAC and 6 A; 84.5% at 100 VAC and 12-24 A; 82% at 230 VAC and 6 A; 87% at 230 VAC and 12-24 A
Power Factor	>0.99 at 100 VAC and 6-24 A; >0.88 at 230 VAC and 6 A; 0.98 at 230 VAC and 24 A
Inrush Current	<60 A; supports 10 A Type C circuit breaker
Internal Fuse	10 A fuse for each AC leg line
External Protection	10 A Class CC fuse or 10-13 A Type C MCB according to EN60898-1
EMC Standards	EN61131-2, EN50130-4, EN61000-6-7
Approvals	CE; cUL 60950
Safety Certification	DC output SELV certified; OVP SIL3 certified according to IEC 61508
Storage Temperature	-40 deg C to 85 deg C; keep below 40 deg C for long-term storage
Humidity	5% to 95% RH non-condensing; derating above 40 deg C
Pollution Degree	PD2 maximum according to IEC60664-1
Altitude	0-2000 m above sea level
Installation Category	Industrial installations only; OVC II up to 2000 m

DIN-Rail Power Conversion and Protection Characteristics

The FC-PSUNI2424 integrates regulated DC power conversion with output voltage supervision functions. The unit maintains a 24 VDC supply output while the integrated overvoltage protection circuit limits DC output voltage below 31 V according to IEC 61508 SIL3 requirements.

Additionally, the power supply includes input EMI filtering with a 2 uF capacitor network between input lines. The design supports industrial AC supply variations from 85 VAC to 265 VAC and maintains controlled inrush current characteristics for circuit breaker coordination.

The PSUNI2424 uses DIN-rail industrial installation principles and provides surge voltage protection limits suitable for control cabinet power distribution. Therefore, installers must maintain proper grounding, protective earth connection, and separation between AC input wiring and low-voltage DC output circuits.

Frequently Asked Questions

Q: Does the FC-PSUNI2424 provide SELV classified DC output?
A: Yes. The DC output is SELV certified, and the integrated overvoltage protection maintains output voltage below 31 V according to IEC 61508 SIL3 requirements.

Q: What external circuit protection is specified for the FC-PSUNI2424?
A: The input circuit supports a 10 A Class CC fuse or a 10-13 A Type C MCB according to EN60898-1.

Q: Can the power supply operate in high humidity environments?
A: Yes. The unit supports 5% to 95% RH non-condensing humidity, with output derating required above 40 deg C.

Field Installation Guidelines

Install the FC-PSUNI2424 inside an industrial control cabinet with adequate ventilation clearance around the enclosure. Connect the protective earth conductor according to applicable electrical installation standards before applying AC input power.

Route AC input conductors separately from 24 VDC output wiring and sensitive signal cables to reduce electromagnetic interference. Maintain correct polarity on the DC output terminals and verify the output voltage before connecting downstream automation equipment.

Use the specified external fuse or circuit breaker protection device to coordinate input protection. Check cabinet temperature conditions because output capability decreases when operating humidity and ambient temperature exceed specified limits.

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