136G7339 Danfoss
Wake Industrial LLC is not an authorized distributor of this product.
MPN: MCD60086BT5S1X20CV1
The Danfoss 136G7339 is part of the MCD Soft Starters series and supports three phase power with an 86 Amp current rating. It features an internal bypass, IP20 rating, and is designed to handle control voltages of 24 V AC or DC. The soft starter weighs 5.5 kilograms, has a rated insulation voltage of 690 V AC, and supports up to 100000 operational cycles.
Internal Product Review
The 136G7339 from the Danfoss MCD Soft Starters series is a three-phase soft starter featuring an internal bypass and a control voltage of 24 V AC/DC. With a current rating of 86 A and impulse withstand capability of 6 kV, this unit is well-suited for demanding industrial environments. Its operational life of 100,000 cycles makes it a reliable choice for extended service.
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Product Description:
The 136G7339 is a solid-state soft starter produced by Danfoss for the MCD Soft Starters series in the VLT Soft Starter MCD product group. It provides controlled acceleration and deceleration for three-phase induction motors, minimizing inrush current and mechanical shock in conveyors, pumps, and other automated machinery. The device is intended for direct connection to three-phase power networks and ships in compact frame size 1 for panel installation in industrial control cabinets.
With a continuous current rating of 86 A, the starter handles medium-duty motor loads, and its power lugs require 4 Nm of terminal torque. A control circuit that accepts 24 V AC/V DC control power integrates easily with typical PLC outputs and auxiliary control circuits. The enclosure is rated IP20, so it must be mounted inside a cabinet but does not require extra sealing at the device body. Power components tolerate impulse voltages up to 6 kV, helping the starter withstand transient conditions on industrial supply lines. Motor protection conforms to Class 10 overload characteristics, allowing the electronic trip algorithm to respond to locked-rotor or prolonged heavy-load events. An internal bypass contactor closes after ramp-up to reduce heat, and an analog load of 600 Ω provides a reference signal for external monitoring. Additional features include a relay output capable of 10 A at 250 V AC, and the operating behavior follows the MCD 600 family control philosophy.
System fault tolerance is reinforced by a prospective short-circuit capacity of 10 kA when protected by suitable fuses, while the thyristor stack can absorb 80000 A²s of let-through energy. The insulation system supports continuous operation at 690 V AC, matching common industrial supply voltages, and mechanical durability is rated for 100000 operations, supporting long service life in repetitive start-stop duty cycles. Net weight is 5.5 kg, and the unit’s short-circuit and I²t parameters support coordination with the protected three-phase power circuit during fault conditions.
