1730DD - Dimmer JUNG - Free user manual and instructions

Product Type	Standard rotary dimmer LED
Model	1730DD (Art. no.: 1730DD)
Brand	JUNG
Rated Voltage	AC 230 V~
Mains Frequency	50/60 Hz
Standby Power	Approx. 0.35 W
Power Loss	Approx. 2 W
Ambient Temperature	-5 ... +45 °C
Connected Load (LED/CFL at 25°C)	20 ... 210 W (ohmic-capacitive), 20 ... 210 VA (ohmic-inductive); HV-LED & CFL: typ. 3 ... 60 W each
Dimming Principles	Leading edge or trailing edge phase control (automatic detection)
Special Functions	Soft start, last brightness memory, switch-on brightness save, minimum brightness setting, electronic short-circuit and overheat protection
Mounting	In appliance box according to DIN 49073
Operation without Neutral	Possible (min. load 50 W, excludes HV-LED/CFL)
Power Extension	Possible via power boosters
Clampable Conductor Cross-section	1x 0.5-4 mm², 2x 0.5-2.5 mm² or 2x 0.5-1.5 mm²
Total Power Cable Length	Max. 100 m
Power Reduction per 5°C above 25°C	-10%
Power Reduction in Wood/Drywall	-15%
Power Reduction in Multiple Combinations	-20%
Accessories	Compensation module LED (Art. no.: KMLED230U)
Safety	Danger of electric shock; device not suitable for disconnection; fuse inductive transformers per manufacturer
Warranty	According to legal framework, via specialty store

Frequently Asked Questions - 1730DD JUNG

Can this dimmer be used with LED lamps?

Yes, the JUNG 1730DD is designed for LED lamps, including HV-LED and compact fluorescent lamps (CFLi). It supports both leading edge and trailing edge phase control and automatically selects the appropriate dimming principle. Maximum connected load for HV-LED is typ. 3-60 W (or 3-120 W in trailing edge mode).

Does the dimmer require a neutral conductor?

No, operation without neutral conductor is possible. However, the minimum load must be at least 50 W, and this does not apply to loads with HV-LED and compact fluorescent lamps.

How do I save a specific switch-on brightness?

Adjust the brightness to the desired level, then press the setting knob for longer than 4 seconds. The light will briefly switch off and on again as confirmation. To delete the saved value, press the knob again for longer than 4 seconds.

What should I do if the LED lamps flicker at the lowest dimming level?

The minimum brightness setting may be too low. Increase the minimum brightness by following the commissioning procedure: press the setting knob for 10-15 seconds until the light turns off and on, then press and hold again within 5 seconds. Release when the desired minimum brightness (where the lamp is still visible) is reached.

How can I reset the overheat or short-circuit protection?

If the electronic overheat or short-circuit protection has activated, the dimmer switches off. To reset, disconnect the dimmer from the mains by switching off the circuit breaker. After eliminating the cause (e.g., reduce load, let cool down), switch the circuit breaker back on.

Can I connect multiple dimmers in parallel?

Power extension is possible using power boosters (see their instructions). For multiple dimmer combinations, derating of -20% applies to the connected load.

What types of transformers are allowed?

Only safety transformers according to EN 61558-2-6 may be used. For inductive transformers, each must be fused on the primary side per manufacturer instructions. Operate inductive transformers with at least 85% nominal load.

Why does my LED lamp glow dimly when switched off?

The LED lamp may not be compatible with this dimmer. Use a compensation module (Art. no. KMLED230U) or try a different LED lamp or manufacturer.

What is the maximum connected load for this dimmer?

At 25°C, the maximum connected load depends on load type: ohmic-capacitive 20-210 W, ohmic-inductive 20-210 VA, ohmic and HV-LED typ. 3-60 W, ohmic and CFL typ. 3-60 W. For trailing edge mode, HV-LED can go up to 120 W and electronic transformers with LV-LED up to 120 VA.

How do I set the minimum brightness?

Ensure the load is off. Press the setting knob for approx. 10-15 seconds until the light switches on and off again. Within 5 seconds, press and hold the knob again. The light will turn on at the lowest brightness and slowly increase. Release the knob when the desired minimum brightness is reached. The setting is saved and the light turns off.

USER MANUAL 1730DD JUNG

Standard rotary dimmer LED

Art. no.: 1730DD

Operating instructions

1 Safety instructions

Electrical devices may only be mounted and connected by electrically skilled persons.

Serious injuries, fire or property damage possible. Please read and follow manual fully.

Danger of electric shock. Always disconnect before carrying out work on the devise or load.

Danger of electric shock. Device is not suitable for disconnection from supply voltage. The load is not electrically isolated from the mains even when the device is switched off.

Risk of destruction if the set operating mode and load type do not match. Set correct operating mode when connecting or exchanging the load.

Fire hazard. For operation with inductive transformers, each transformer must be fused on the primary side in accordance with the manufacturer's instructions. Only safety transformers according to EN 61558-2-6 may be used.

These instructions are an integral part of the product, and must remain with the end customer.

2 Intended use

– Switching and dimming of lighting

– Mounting in appliance box according to DIN 49073

– Operation with suitable cover

3 Product characteristics

Product characteristics

– Device works according to the leading edge phase control or trailing edge phase control principle

– Automatic setting of the dimming principle suitable for the load

– Operation without neutral conductor possible

– Switch-on via bulb-preserving soft start

- Switch on with last saved brightness or saved switch-on brightness

– Switch-on brightness can be saved permanently

– Minimum brightness can be saved permanently

– Electronic short-circuit protection with permanent switch-off after 7 seconds at the latest

– Electronic over-temperature protection

i Power extension possible by means of power boosters.

4 Operation

Switching light or adjusting brightness

graph TD
    A["Start"] --> B{Decision}
    B -->|Yes| C["Process Step"]
    B -->|No| D["End"]

Figure 1: Switching light or adjusting brightness

■ Press the setting knob briefly: Light switches on or off (Figure 1).
■ Turn the setting knob quickly: Brightness is changed quickly (Figure 1).
■ Turn the setting knob slowly: Brightness is changed slowly (Figure 1).

Switching the light on at minimum or maximum brightness

graph TD
    A["1. Light icon"] --> B["2. Grey arrow"]
    B --> C["3. Max. Sun icon"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cff,stroke:#333

Figure 2: Switching on the light at minimum or maximum brightness

■ Turn the setting knob by a quarter turn, then press the setting knob briefly: Light switches on at minimum brightness or maximum brightness (Figure 2).

Save switch-on brightness

■ Adjust the brightness.
■ Press the setting knob for longer than 4 seconds.

Switch-on brightness is saved. The lighting switches briefly off and on again as confirmation.

Delete switch-on brightness

■ Press the setting knob briefly: Light switches on at the saved switch-on brightness.
■ Press the setting knob for longer than 4 seconds.

The switch-on brightness is deleted. Switching on takes place at the last brightness value set. For confirmation, the light is switched off briefly and switched on again.

5 Information for electrically skilled persons

5.1 Fitting and electrical connection

DANGER!

Mortal danger of electric shock.

Disconnect the device. Cover up live parts.

Fitting and electrical connection

Figure 3: Connection diagram

Connect 600 Watt LED lamps or compact fluorescent lamps at most per 16 ampere circuit breaker. When connecting transformers, observe the data of the transformer manufacturer.
Our dimmers take into account the different electronic characteristics of most LED lamps found on the market. However, it cannot be guaranteed that in individual cases the desired results may not be achieved.

Operation without neutral conductor possible.

Figure 4: Clampable conductor cross-section

Reset the overheating protection / short-circuit protection

If the electronic overheating or short-circuit protection has been activated, separate the dimmer from the grid.

5.2 Commissioning

Setting the minimum brightness

Precondition: The dimmer is ready for operation and the load is switched off.

■ Press the setting knob for approx. 10 to 15 seconds until the light switches on and off again.
■ Press again and hold the knob within 5 seconds. Light switches on at the lowest brightness and slowly becomes brighter.
i In the lowest dimming position, a lamp light must be visible.
■ Once the desired minimum brightness is reached, release the setting knob. The minimum brightness is stored and the light is switched off.

6 Technical data

Rated voltage AC 230 V\~

Mains frequency 50 / 60 Hz

Standby power approx. 0.35 W

Power loss approx. 2 W

Ambient temperature -5 ... +45 °C

Connected load at 25 °C (Figure 5)

Figure 5: Connected load

Mixed load

ohmic-capacitive 20 ... 210 W

capacitive-inductive not permitted

ohmic-inductive 20 ... 210 VA

Ohmic and HV LED typ. 3 ... 60 W

Ohmic and compact fl lamp. typ. 3 ... 60 W

If the dimmer is adjusted to trailing edge phase control, the maximum connected load for HV-LED lamps is typ. 3 ... 120 W and electronic transformers with LV-LED lamps typ. 20 ... 120 W.
i Power specifications including transformer dissipation.
i Operate inductive transformers with at least 85% nominal load.
☐ Ohmic-inductive mixed load: maximum 50% proportion of ohmic load. Otherwise, an incorrect measurement is possible.
Operation without neutral conductor: Minimum load 50 W. Does not apply to loads with HV-LED and compact fluorescent lamps.

Power reduction

per 5°C in excess of 25°C -10%

when installed in wooden or dry construction walls -15%

when installed in multiple combinations -20%

Power boosters See power booster instructions

Total length power cable max. 100 m

7 Troubleshooting

Connected LED lamps or compact fluorescent lamps switch off in the lowest dimming position or flicker

Cause: The set minimum brightness is too low.

Increase minimum brightness.

Connected lamps do not switch on in the lowest dimming position or only after a delay

Cause: The set minimum brightness is too low.

Increase minimum brightness.

Connected LED lamps or compact fluorescent lamps flicker or buzz, no correct dimming possible, device buzzes

Cause 1: Lamps are not dimmable.

Check manufacturer's instructions.

Exchange lamps for another type.

Cause 2: Dimmer is connected without neutral conductor.

Connect neutral conductor if possible, otherwise exchange lamp for another type.

Connected LED lamps or compact fluorescent lamps in the lowest dimming position are too bright; dimming range is too small

Cause 1: The set minimum brightness is too high.

Reduce minimum brightness.

Exchange HV-LED lamps for another type.

The dimmer switches the load off briefly and then on again.

Cause: short-circuit protection has tripped but now there is no longer a fault.

The dimmer has switched off and the load cannot be switched on again

Cause 1: overheating protection has tripped.

Disconnect dimmer from mains by switching off circuit breaker.

Reduce the connected load. Exchange lamps for another type.

Let dimmer cool down for at least 15 minutes.

Switch circuit breakers and dimmer on again.

Cause 2: Surge protection has triggered.

Exchange lamps for another type.

Cause 3: short-circuit protection has tripped.

Disconnect dimmer from mains by switching off circuit breaker.

Eliminate short-circuit.

Switch circuit breakers and dimmer on again.

i Short-circuit protection is not based on a conventional fuse, no metallic separation of the operational current.

Cause 4: load failure.

Check load, replace light bulb. For inductive transformers, check primary fuse.

LED lamp is dimly lit when dimmer is switched off

Cause: LED lamp is not suitable for this dimmer.

Use a compensation module, see accessories.

Use another type of LED lamp or an LED lamp of another manufacturer.

8 Accessories

Compensation module LED Art. no. KMLED230U

9 Warranty

The warranty follows about the specialty store in between the legal framework as provided for by law

ALBRECHT JUNG GMBH & CO. KG

Vollmestraße 1

58579 Schalksmühle

GERMANY

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[e-mail]

www.jung.de