ALEXANDER ENGEL KG - engel modellbau -/- R/C -/Switch Modules products

Relay Block for Conning Tower Mechanism 19,90 €

Fri, 27 Sep 2024 09:46:05 +0200

Relay Block for Dive Plane Retract Mechanism AKULA, GATO and TYPHOON.

Fully built switch board no. 602 06 050 with 2 relays, capacitors and LEDs.

Direct replacement for item no. 6018.

4-Channel Electronic Switch Module MINI 23,80 €

Sat, 18 Apr 2026 19:43:22 +0200

Miniature electronic module for switching 4 different functions
with a load of up to 4 Amps by a single R/C channel!

This is a direct replacment for item 8430. This new version is much smaller and even more powerful!

The module only needs to be plugged into the receiver; the functions are controlled simply by using a joystick or switch on the transmitter.

• Controls 4 functions
• Designed to take loads of up to 4 amps (10 sec.) or 3 amps (continuous)
• Requires a single R/C channel
• Selective memory function for 2 outputs or all 4
• Easy memory selection through jumper
• Automatic signal setup works will all R/C systems
• Approved for 2.4 GHz

Dimensions 5 x 18 x 24 mm
Weight approx. 3.5 g

Made in Germany

Duo-Switch 2-channel electronic switch 34,95 €

Tue, 07 Apr 2026 14:13:48 +0200

Two-channel switch module for operating two separate switched functions On and Off, or - with special wiring - for reversing electric motors. Designed for switching auxiliary working systems in model boats, aircraft and cars.

All switches are controlled directly from the receiver, and are fitted with an adjustor for setting the switching point.

The output of the electronic switches is galvanically separated from the relay input. The maximum switching capacity of the relay is 24 V / 5 A.

The switch modules features two alternative types of switching process:

1. Normal version, the operated function remains switched on as long as the associated transmitter control is held in the ´ON´ position.

2. Memory version, when the transmitter control is operated, the function is switched on, and the ON state is stored. The function is only switched off again when you operate the same transmitter control a second time. The relay outputs take the form of screw-terminals, so no soldering is required.

Technical Specifications:
Operational voltage 4,8 - 7,4 V
Switching voltage max. 30 V
Switching current 10 A
Dimension 42x39x19mm
Weight 29 g

Electronic Control Unit TMS for Conning Tower Mechanism 48,90 €

Thu, 05 Mar 2026 11:56:44 +0100

This electronic switch unit replaces the standard relay block of conning tower mechanism for model submarines such as AKULA and TYPHOON.

Technical Specifications:
Operational voltage 4,8 - 7,4 V
Switching voltage max. 30 V
Switching current 10 A
Dimension 42x39x19mm
Weight 29 g

Includes
electronic unit TMS
2 spacers 5 mm
2 screws A2 2.9 x 9.5 mm
manual with wiring diagram

10-Channel Electronic Switch Module 5+5 29,75 €

Wed, 18 Mar 2026 01:02:15 +0100

Miniature electronic module for switching 10 different functions
with a load of up to 350 mA by a single R/C channel!

• Each function can be switched on and off separately.
• The difference to the 10-channel switch module is that the 10 channels offered by this switch are actually operated as 2 sets of 5 channels. By tipping the control stick in one direction (e.g. upwards) actuates the first 5 functions. Tipping the control stick in the opposite direction (e.g. downwards) actuates the second set of 5 functions. This offers more comfort than the "pure" 10-channel switch module. However, the 5+5-channel switch does not offer any blinking of these channels.
• The "eleventh" output of the 5+5 switch offers steady blinking which is not R/C controlled (if not wanted, just do not connect to lamp, LED or similar).
• Switching voltage is up to 30 V with a max. load of 350 mA per channel.
• Each output switches on ground (as common in R/C).
• Requires no modifications on transmitter or receiver. Simply operated via control stick on your transmitter.
• Supply voltage can range 3.0 to 7.5 V corresponding to 4 to 5 cell NiMH pack, LiPo 2S or BEC (via speed controller).

Dimensions approx. 4 x 36 x 32 mm
Weight approx. 6.5 g

Made in Germany

10-Channel Electronic Switch Module 29,75 €

Wed, 18 Mar 2026 00:59:38 +0100

Miniature electronic module for switching 10 different functions
with a load of up to 350 mA by a single R/C channel!

• Each function can be switched on and off separately.
• Each output can be activated as constant or blinking. That gives 2 functions for each of the 10 channels.
• Blinking occurs in a rhythm of 1 sec., also indicating receiver signal quality and if poor blinking slows down or even stops in case of signal failure.
• Switching voltage is up to 30 V with a max. load of 350 mA per channel.
• Each output switches on ground (as common in R/C).
• Requires no modifications on transmitter or receiver. Simply operated via control stick on your transmitter.
• Supply voltage can range 3.0 to 7.5 V corresponding to 4 to 5 cell NiMH pack, LiPo 2S or BEC (via speed controller).

Dimensions approx. 4 x 36 x 32 mm
Weight approx. 6.5 g

Made in Germany

Relay Polarity Reverse Module 23,85 €

Thu, 05 Mar 2026 13:48:27 +0100

Double switch relay with connecting lead for ENGEL 4-Channel Electronic Switch Module MINI (no. 8431) increasing the MINI switch's switching capacity to 10 A. The relays are wired to provide forward / stop / reverse switching when switch module, motor and battery (main battery +/-, receiver battery +) are connected to it.

Suitable for switching high-current auxiliary working systems such as pumps, electric motors etc.

This module cannot be operated directly from a receiver but requires a 4-Channel Electronic Switch Module MINI (no. 8431) .

Technical Specifications:
Operating Voltage 4.8 - 6 V (receiver battery power)
Switching Voltage 6 - 24 V
Max. load 10 A
Switching function 1
Dimensions 43 x 27 x 20 mm
Weight 25 g

Cross-Mixer XM 22,50 €

Thu, 05 Mar 2026 12:31:36 +0100

The cross mixer can be used, for example, to control X-rudders, V-tail units, twin-screw drives, or chain drives (caterpillars, excavators, or tanks).

Simply plug the mixer into the corresponding receiver channels using two patch cables and plug the two servos (or the attitude control) into the mixer's jack cables, and you're done.

• Connection
The cross mixer has two inputs and two outputs.The servos are connected to the two outputs. If 4 servos are used, Y-cables must be used.
The inputs are connected to the two signal sources that are to be mixed. These can be two channels from the receiver, or a receiver channel and a position controller signal.

• Function
One input is connected to both outputs. The second input is also output directly to one servo and inverted to the other servo.
Different signals can be set at the two inputs; the corresponding sums of the two signals are output at the outputs.
The cross mixer automatically monitors that the outputs do not exceed 100%.
This ensures that the servos are never controlled beyond their end position, preventing damage to the control linkages.
The cross mixer is deliberately kept simple. It has no configuration options.

If, for example, the servos turn in the wrong direction, the servo linkages must be attached differently or the reverse function must be used in the transmitter. If the zero point is not correct, this must be corrected with the trim on the transmitter or by adjusting the servo linkage.

After installation, the maximum deflections should be checked. To do this, control the two channels to their possible end positions:
- up and left
- up and right
- down and left
- down and right

In each of these positions, one servo should be approximately in the center position and the other at maximum deflection.
It is not useful to limit the servo travel on the transmitter, as two signals are added together. Due to the summation, these possible results are actually always above 100%. For this reason, the cross mixer itself limits the maximum servo travel to 100%.
For this reason, increasing the servo travel in the transmitter to 150% does not make sense.

Packed in a sturdy casing and very compact!
Dimensions (height x width x length) 12x18x24 mm
Weight approx. 5 g

Includes
• Cross-Mixer XM
• 2 Patch Wire Leads 150 mm
• Manual with Wiring Diagram

Electronic Control Unit RMR for Dive Plane Retract Mechanism 48,90 €

Thu, 05 Mar 2026 13:48:39 +0100

This electronic switch unit replaces the standard relay block of dive plane retract mechanism for model submarines GATO and TYPHOON.
The dive plane servo connects directly to this unit. No cutting of servo leads necessary (as with standard relay block). This unit also identifies neutral position of the servo. Therefore, the micro switch of the standard relay block becomes redundant.

• Connections: Plug the RMR into channel of the receiver (Rx) which operates the bow dive plane servo. Alternatively this can also be a pitch controller. All other connections are made as per wiring diagram below. For connecting end switches S1 and S2 to the corresponding contact pins on the RMR use wire lead no. 9128. On the end switches only contact tags 1 and 4 are to be connected. Contact tag 2 is idle!

ENSURE that neutral position of the dive planes matches the neutral position of the dive plane servo.

• Control: Minus polarity (ground) of receiver power being connected to the (single) pin marked as “-” on the RMR commands the dive planes to extract. This contact can be switched either by a so-called decoder (i. e. robbe Multi Switch, Graupner nautic) or by an electronic switch (i. e. 4-channel switch MINI, item no. 8431).

• Operation: As soon as contact between minus polarity and this particular pin on the RMR is interrupted the retract mode is initiated. Before retraction sets in, the RMR brings the servo back to neutral; after a short pause the dive planes start to retract.

Please note: The RMR should only be operated in combination with a digital servo.

“Normal” (meaning analogue) servos tend to twitch in the instant when the receiver is turned on. This happens while the dive planes are still retracted, putting quite some tension on the servo gears as well as the dive plane mechanism. A digital servo does not show such behavior as it will only respond to actual control impulses.

Includes
electronic unit RMR
2 spacers 5 mm
2 screws A2 2.9 x 9.5 mm
manual with wiring diagram

Electronic Control Unit RME for Dive Plane Retract Mechanism 29,85 €

Thu, 05 Mar 2026 13:48:51 +0100

The RME controls the two servos used for retrct mechansim of model submarine AKULA K-317. This unit replaces the former relay block.
Both servos, for dive plane as well as retract servo, are connected to the RME at 3-pole pin rows marked A and B:
A: dive plane servo
B: servo for retraction/extraction of dive planes

The dive plane servo connects directly to the RME. This unit automatically identifies the servo’s neutral position. Therefore, the micro switch used for the standard relay block becomes redundant (cutting of servo wire is also no longer necessary).

• Connection: Wire lead marked “Rx” is plugged into dive plane servo channel of the receiver; alternatively, this can also be a pitch controller.

The second wire lead, marked “Prog” (and knotted), connects to another channel of the receiver. This channel is only used for initial adjustment of the mechanism’s end position “fully retracted” and “fully extracted” via a proportional channel on the transmitter (control stick). After this has been done, pull the wire off the reciever; it remains redundant unless the mechanism requires readjustment.

• Control: As soon as the pin on the RME marked with “-“ is connected to ground (e.g. minus polarity of reiver battery) the unit switches the dive planes to extract. This function can be switched by a so-called Decoder (like robbe Multi Switch or Graupner Nautic) or by electronic 4-channel switch MINI, item no. 8431.

• Adjustment: For initial setup only the retract servos needs to be connected to the RME. Both wire leads, “Prog” and “Rx”, must be plugged into the appropriate channels of the receiver. No linkage (clevis) is connected to the servo arm, yet. After having powered up the receiver the servo turns to position “fully retracted”. The linkage is now to be connected to the servo arm so that the dive planes actually correspond to the position “fully retracted”. Then switch the mechanism to “extract” (via Decoder of 4-channel mini switch 8431).

Both end positions can now be fine tuned via the “Prog”-channel. Then the “Prog”-cable is removed and left idle.

Plug the dive plane servo onto the RME and ensure that servo trim on your transmitter is in neutral. Connect linkage to the servo’s control arm. Servo throw might need to be limited (if your Tx features such adjustment) so that the planes do not collide with the base of the mechanism.

• Operation: As long as pin marked “-“ is switched to ground, dive planes remain extracted. Once switched off, initiates the retract mode. First the dive plane servo is automatically brought to neutral; then, after a short pause, the dive planes are retracted.

Please note: The RMR should only be operated in combination with digital servos (item no. GR7946). “Normal” servos tend to twitch in the instant when the receiver is turned on. This happens while the dive planes are still retracted, putting quite some tension on the servo gears as well as the dive plane mechanism. A digital servo does not show such behavior as it will only respond to actual control impulses.

• Servo Reverse: Direction of rotation does vary amongst servo brands. Servo rotation can be inversed by plugging or unplugging the jumper on the RME.

WITH jumper: robbe/Futaba
W/O jumper: Graupner

Correct direction of rotation must be verified before initial operation!

Reverse Drive Detection BL, no BEC 16,80 €

Thu, 05 Mar 2026 13:49:09 +0100

Automatic reverse drive detection for Pitch Controller SPC2, DLx2 and LRpro in combination with a brushless motor

For SPC2:
With this unit pitch controller SPC2 will reverse the pitch of the dive planes automatically.
In combination with SPC2 this unit is required for BRUSHED as well as BRUSHLESS main drive motor.

For DLx2 and LRpro:
Pitch Controller DLx2 and LRpro reverses automatically the pitch of the dive planes when BRUSHED main drive motor switches to reverse.

This small unit is designed to work in combination with the DLx2 or LRpro and a BRUSHLESS motor. Just plug the device between receiver and speed controller and connect the two other ports to DLx2. Done.

There are two versions of this unit available:
• with BEC transit from speed controller to receiver (when not using a receiver battery)
• without BEC transit (when using a receiver battery)

This version is without BEC transit (for models using a receiver battery)

Reverse Drive Detection BL, BEC version 16,80 €

Fri, 24 Apr 2026 15:48:24 +0200

Automatic reverse drive detection for Pitch Controller SPC2, DLx2 and LRpro in combination with a brushless motor

ubmarineFor DLx2 and LRpro:
Pitch Controller DLx2 and LRpro reverses automatically the pitch of the dive planes when BRUSHED main drive motor switches to reverse.

This small unit is designed to work in combination with the DLx2 or LRpro and a BRUSHLESS motor. Just plug the device between receiver and speed controller and connect the two other ports to DLx2. Done.

There are two versions of this unit available:
• with BEC transit from speed controller to receiver (when not using a receiver battery)
• without BEC transit (when using a receiver battery)

This version is with BEC transit (for models not using a receiver battery)

UBEC 3A, Low Noise, max. 5A, 2-6S 12,95 €

Thu, 05 Mar 2026 13:49:24 +0100

A UBEC (Universal Battery Eliminating Circuit) supplies regulated (switched) DC power to the receiver.
This ensures optimal and safe functioning of the receiver and sufficient power supply for all connected R/C components (i.e. servos, modules etc.) up to 3 A.
This might not be the case if using a conventional (linear) BEC via the speed controller.
Furthermore, conventional BEC often generates excessive heat within the model which often ends with an overload and final loss of the model.

This UBEC offers LOW NOISE power supply to the receiver. Power fluctuation is compensated. No excessive heat built-up.
To reduce interference the unit's main electronic components are shielded by a metal cover and a ferrite ring is installed on the wire connecting to the receiver.

Technical Specifications
power output: 5 or 6 V (selectable by jumper)
power input: 2-6S LiPo / 5-18 NiMH (5.5-26 V)
continuous current: 3 A (max. 5 A for 10 sec.)

Important notice: If the ESC being used has a built in BEC, that BEC must be disabled when using a UBEC!
To disable the BEC of an ESC, simply disconnect the red wire on the receiver plug of the ESC.