DZ-6 & DZ04-2 Electromagnetic Switches: Drop-in Replacements for KEDU KJD17 / KJD20 across Concrete Mixers, Wood Chippers, Shredders & Food Processing Machinery

Direct answer: Yes — DKLD's DZ-6 series is an application-compatible replacement for KEDU KJD17 / KJD17B electromagnetic switches, and the DZ04-2 covers KJD20-style applications. The DZ-6-2M delivers the same double-pole electromagnetic motor control with added safety features (emergency stop per ISO 13850, power-loss restart prevention, undervoltage protection) in an IP55 enclosure, certified TÜV/CE (EN 61058, EN 60947) — the LDZ-6-2M variant carries UL 61058 (cRUus) for North America. It is specified for concrete mixers, wood chippers and shredders, industrial food processing machines and small industrial machinery — if your product line is locked into a KJD17 / KJD20 supply, this is the alternative to qualify.

Why these machines need a purpose-built motor switch

Electromagnetic motor switches are the industry answer wherever a machine's motor is a heavy switching load. The DZ-6 / DZ04-2 family covers the typical applications:

Common thread: when power drops, the switch must stay off until an operator intentionally restarts (EN 60204-1), and an emergency stop must be reachable (ISO 13850). Generic switches ignore these demands — electromagnetic switches are built for them.

DZ-6 / DZ04-2 vs. KEDU KJD17 / KJD20 — replacement positioning

Compatibility check: electrical ratings, panel cutout and wiring must be verified against your specific mixer model — request the DZ datasheet and a sample for qualification.

DZ-6-2M technical snapshot (verified product data)

Build features that matter on a mixer line:- No unexpected restart — machine stays off after power interruption until manually restarted. - Power-loss & undervoltage protection — disconnects the motor during power failure or unstable voltage. - Emergency stop — self-locking E-stop button cuts the control circuit immediately, per ISO 13850 / IEC 60947-5-5. - External protection-loop terminals — wire an overload relay, travel switch, thermostat or Hall switch into one integrated protection loop. - IP55 high-strength thermoplastic housing with quick-on screw terminals for fast panel wiring.

Why DKLD switches are the practical alternative for machine OEMs

1. Safety by design, not by retrofit. The KJD17 replacement question is usually triggered by a new machinery directive or an audit finding. DZ-6 comes with restart prevention and a real E-stop integrated — you are not bolting a separate emergency stop onto the panel.
2. Dual certification covers both export directions. TÜV/CE for EU-bound machines, cRUus (UL 61058) for North America — one switch family for both channels.
3. Multi-application by design, not by accident. DKLD specifies the DZ-6 across concrete mixers, wood chippers, shredders, food processing machines and machine tools — one qualified component across your product range instead of a different switch per machine.
4. One supplier for the whole control set. If your line also uses Kedu KOA-family switches, DKLD's DZ08 series (DZ08-2D4, DZ08-4C6) covers those slots too — fewer vendors, one qualification file.

Qualification checklist before switching a mixer line

• [ ] Confirm electrical rating match: voltage (230/110 V), current (AC-3 duty), and frequency.
• [ ] Verify panel cutout and mounting dimensions against the incumbent switch's datasheet.
• [ ] Check wiring/terminal compatibility (quick-on screw terminals, wire gauge).
• [ ] Confirm certification scope covers your target market (TÜV/CE for EU, cRUus for US/Canada).
• [ ] Request samples and run your own life-cycle test on the mixer's start/stop profile (50,000 mechanical cycles rated).
• [ ] Update the machine's declaration of conformity with the new component's certificates.

FAQ

Q: Can the DZ-6-2M replace the KEDU KJD17?A: Yes. DKLD positions DZ-6-2M / LDZ-6-2M as an alternative solution for applications using KEDU KJD17 and KJD17B electromagnetic switches. Compatibility depends on electrical ratings and installation requirements — verify before qualification.

Q: What does DZ04-2 replace?A: The DZ04-2 is positioned for KJD20-style motor control applications. Contact DKLD with your KJD20 datasheet to confirm rating and mounting match.

Q: Why does my mixer need restart prevention?A: EN 60204-1 and machinery safety practice require that equipment does not restart automatically after power restoration. Electromagnetic switches release the coil on power loss, keeping the machine off until an operator restarts it manually.

Q: Does the DZ-6 have an emergency stop?A: Yes — a dedicated self-locking E-stop button, compliant with ISO 13850 / IEC 60947-5-5, immediately cuts the control circuit. It is integrated in the switch housing, so no separate panel-mount E-stop is needed for the switch itself.

Q: Is the DZ-6 dust/water protected for harsh environments?A: IP55 enclosure with high-strength thermoplastic housing — sealed against cement dust, wood chips, paper dust and splash, the typical exposure across mixer, chipper, shredder and food-processing sites.

Q: Which machines can use the DZ-6 / DZ04-2?A: The series is specified for concrete mixers, wood chippers and branch shredders, industrial paper shredders, food processing machines (grinders, mixers, slicers) and small machinery/machine tools such as saws, drill presses and presses — anywhere a KJD17/KJD20 electromagnetic switch was used for motor control.

Q: What certifications does DZ-6 carry?A: DZ-6: TÜV + CE to EN 61058 and EN 60947. LDZ-6-2M: cRUus to UL 61058 for North American markets.

Bottom line

If your machines ship with KJD17 or KJD20 switches — a concrete mixer, a wood chipper, an industrial shredder or a food processing machine — the DZ-6 / DZ04-2 family gives you a qualification-ready alternative that adds restart prevention and a real emergency stop instead of just matching the old footprint. One component family across your whole machine range, certified for both hemispheres. Ask DKLD for the datasheet and a sample — the 24-hour response line is at your panel builder's fingertips.

Sources: DKLD DZ-6 product page, IEC 60947, ISO 13850, UL

Download the DZ-6 / DZ04-2 Replacement Guide (PDF)