Overview
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | F3423 |
| Brand | HIMA |
| Product Type | Relay Amplifier PC Board |
| Channel Count | 8 channels in product description; 16 channels in technical parameters |
| LED Indication | Yes |
| Control Voltage | 24 VDC |
| Rated Switching Voltage | 250 VAC |
| Continuous Current | 4 A AC |
| Making Capacity | 10 A for 4 ms |
| Switching Power | 1000 VA (AC) |
| Operate Time | Less than 5 ms |
| Release Time | Less than 3 ms, plus bounce time less than 1 ms |
| Operating Temperature | 0 to +60 deg C (T3) |
| Storage Temperature | -40 to +85 deg C |
| Relative Humidity | 5-95% RH, non-condensing |
| Weight | 0.15 kg |
| Estimated Shipping Dimensions | 2 x 18.8 x 12.8 cm |
| Country of Origin | Germany |
| Tariff Code | 8537101190 |
Relay Switching Function
A relay amplifier uses a control signal to operate relay contacts, allowing a low-voltage control circuit to switch a separate electrical load. For the F3423, the listed 24 VDC control voltage and AC switching ratings describe different parts of this function. The control voltage should not be confused with the rated voltage of the switched circuit.
The specified operate and release times describe the relay’s response during switching. The additional contact bounce time is relevant when evaluating short switching intervals or applications that require precise timing.
Switching Capacity and Protection
The listed switching limits include a continuous current of 4 A AC, a making capacity of 10 A for 4 ms, and a switching power rating of 1000 VA AC. These values describe different operating conditions and should not be treated as interchangeable limits. The supplied data also specifies a 6.3 A quick-acting fuse; confirm the applicable circuit and protection requirements before commissioning.
Frequently Asked Questions
Q: Does the HIMA F3423 have 8 or 16 channels?
A: The supplied product description identifies 8 channels, while the technical parameter list specifies 16 channels. This conflict remains unresolved, so verify the board markings and applicable technical documentation before ordering or replacing an installed unit.
Q: What control voltage does the F3423 use?
A: The supplied specifications list a 24 VDC control voltage. This is separate from the listed maximum rated switching voltage of 250 VAC.
Q: What switching limits should be checked before using the F3423?
A: Check the AC load voltage, continuous current, switching power, making capacity, and specified fuse requirement. The listed ratings alone do not establish suitability for every resistive, inductive, or other load type.
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