621-9934 | Honeywell I/O Rack Power Supply Module, 115/230 VAC, 8 A +5 VDC

Honeywell · Power Supplies & Transformers

Description  The Honeywell 621-9934 I/O Rack Power Supply Module delivers regulated DC power for I/O and analog control modules. It supports selectable 115/230 VAC operation and provides 8 A at +5 VDC and 600 mA at ±15 VDC, ensuring stable and reliable operation in industrial automation systems.     Technical Specifications  Condition New/Never Used Surplus Brand Honeywell Category Industrial Power Supplies Part Number 621-9934 Subcategory I/O Power Supply Modules Function Power supply for I/O and analog modules Input Voltage Selectable 115/230 VAC Input Frequency 47–63 Hz Output Voltage +5 VDC and ±15 VDC Output Current +5 VDC @ 8 A, ±15 VDC @ 600 mA Input Terminals A (L1/Line), B (L2/Common), and Ground symbol Power Output Type Regulated DC output Power Capacity Total combined power for standard I/O operation Operating Frequency Range 46–63 Hz Configuration Selectable input via internal switch or jumper Protection Overload and thermal protection Mounting Rack-mounted installation Electrical Isolation Integrated between input and output Housing Metal front coverplate with terminal block Cooling Convection cooled Operating Temperature 0…55°C Storage Temperature -25…+85°C Relative Humidity 95%, non-condensing Applications I/O racks, analog modules, and control system power distribution Weight 3.20 lbs (approx. 1.45 kg)   Information About 621-9934 The Honeywell 621-9934 belongs to the I/O power supply family used in Honeywell industrial control systems, designed to provide regulated DC power for I/O and analog signal modules. It operates on either 115 VAC or 230 VAC input, selectable through internal configuration, and converts it into +5 VDC and ±15 VDC outputs. The +5 VDC supply delivers up to 8 A for digital logic and I/O modules, while the ±15 VDC supply provides 600 mA for analog and special-function modules. A top-mounted terminal block clearly labels the AC input connections for line, common, and ground, simplifying installation. Built with overload and thermal protection, the 621-9934 ensures stable and safe power delivery within demanding automation environments. Key Features: Selectable Input Voltage: Operates on either 115 VAC or 230 VAC, suitable for global installations. High Output Capacity: Supplies 8 A at +5 VDC and 600 mA at ±15 VDC to power I/O and analog modules. Stable Regulated Output: Provides consistent voltage regulation for sensitive control electronics. Integrated Protection: Includes overload and thermal protection to ensure operational safety. Durable Construction: Metal front coverplate and robust design for industrial reliability. Convenient Connection: Top-mounted terminal block simplifies AC wiring and installation. Rack-Mount Design: Fits Honeywell I/O racks, supporting centralized power distribution. Wide Frequency Range: Compatible with 47–63 Hz AC input for flexible operation. The 621-9934 delivers the reliability and precision required for powering control modules and maintaining stable operation in Honeywell process automation systems.

Brand: Honeywell · Category: Power Supplies & Transformers

Key features

• Selectable Input Voltage: Operates on either 115 VAC or 230 VAC, suitable for global installations.
• High Output Capacity: Supplies 8 A at +5 VDC and 600 mA at ±15 VDC to power I/O and analog modules.
• Stable Regulated Output: Provides consistent voltage regulation for sensitive control electronics.
• Integrated Protection: Includes overload and thermal protection to ensure operational safety.
• Durable Construction: Metal front coverplate and robust design for industrial reliability.
• Convenient Connection: Top-mounted terminal block simplifies AC wiring and installation.
• Rack-Mount Design: Fits Honeywell I/O racks, supporting centralized power distribution.
• Wide Frequency Range: Compatible with 47–63 Hz AC input for flexible operation.

Specifications

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