| Brand | DOLD |
|---|---|
| Housing width | 45 mm |
| Output contacts | 1 C/O contact, 2 C/O contacts |
| Enclosure design | Switch cabinet |
| Phases | 1 |
| Order number | 0034323 |
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DOLD BA 9837 – Frequency Relay
- Brand
- DOLD
- Part number
- BA 9837
- Order number
- 0034323
Frequency Relay
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Price and lead time on request — add this part to your quote list and we will reply with pricing and availability.
The frequency relay can be used especially in applications where the rotor frequency of a slip-ring motor must be measured. The rotor frequency is reciprocal proportional to the speed (see diagram rotor frequency at contercurrent braking). This behaviour allows to find speed depending switching values and can be used for start up and contercurrent braking of motors on cranes.
Features
- According IEC/EN 60255-1
- Detection of under- or overfrequency
- Adjustable response value
- Optionally 1 or 2 changeover contacts
- Width 45 mm
Technical specifications
| 1- / 3-phase | 1 |
|---|---|
| Auxiliary voltage required | Yes |
| Enclosure design | Switch cabinet |
| Measuring range max. | 600 Hz |
| Operate delay | Yes |
| Output contacts | 1 C/O contact, 2 C/O contacts |
| Standard measuring range | 30 – 90 Hz |
| Width | 45 mm |
| Type | BA 9837 |
Available variants
| Auxiliary voltage | AC 24 V · AC 42 V 50/60 Hz · AC 110 V 50/60 Hz · AC 120 V 50/60 Hz · AC 127 V 50/60 Hz · AC 230 V 50/60 Hz · AC 240 V 50/60 Hz |
|---|---|
| Contact equipping | 1 changeover contact · 2 changeover contacts |
| Measuring range | 5 – 15 Hz · 10 – 30 Hz · 20 – 60 Hz · 30 – 90 Hz · 40 – 120 Hz · 100 – 300 Hz · 200 – 600 Hz |
| Variant | – · With internal bridge X1 – X2 · With internal bridge X2 – X3 |
Tell us the variant you need in your quote request.
