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This product is intended to replace mechanical contactors especially when switching is frequent. The smallest product width in the range is 2.13" (54mm) (3xDIN) and goes up to 2.84" (72 mm).
Switch ON occurs at the voltage zero cross and switch OFF occurs at the current zero cross. Apart from resistive and slightly inductive loads, the SSR is certified for motor switching with associated motor ratings. Varistors are integrated for output over-voltage protection. A green LED gives indication of control voltage presence. Fan operation is controlled for the versions which have an integrated fan.
Detection of SSR overheat, mains loss, SSR malfunction and load loss is possible with the monitored (-M) versions. An EMR alarm output is available for remote signaling. An additional feature with the monitored (-M) is the electronic auxiliary output. The monitored (-M) has additional LED's for load status and alarm status indication.
Specifications are at a surrounding temperature of 77°F (25°C) unless otherwise specified.
- 3-pole AC switching solid state contactors
- Product width up to 2.84" (72 mm)
- Rated operational voltage up to 600 VAC
- Rated operational current up to 75 AAC
- Control voltages
- ....60A.. 20-275 VAC (24-190 VDC)
- ....60D.. 5-32 VDC
- Up to 15,000A²s for l²t
- Motor ratings up to 11 kW @ 400 VAC, 25 HP @ 600 VAC
- Integrated Varistor protection on output
- Optional monitoring for SSR and load malfunction
- EMR alarm output and auxiliary output
- Controlled fan operation for versions with integrated fan
- cULus & CE Listing
- 100 kA Short Circuit Current Rating according to UL 508
- DIN or panel mount
- RoHS compliant
- Line & Load accepts 10-14 AWG (20 & 25 units)
- Line & Load accepts 3-14 AWG (30, 40, 65 & 75 units)
Data Sheet
Manufacturer: MDI Relays & Switches
Delivery: 1 - 6 weeks
Please use the "Request a Quote" form
Motor Ratings HP UL 508 (kW) EN/IEC 60947-4-2 @ 104°F (40°C)
Filtering - EN/IEC 55011 Class A Compliance
3PSS60.20
220 nF / 760V / X1
Max heater AAC 25
3PSS60.25
330 nF / 760V / X1
Max heater AAC 25
3PSS60.30
470 nF / 760V / X1
Max heater AAC 30
3PSS60.40
470 nF / 760V / X1
Max heater AAC 40
3PSS60.65
470 nF / 760V / X1
Max heater AAC 65
Fusing / Short Circuit Protection
Co-ordination Type 1 (UL508) Suitable For Use On A Circuit Capable Of Delivering Not More Than 100,000 Arms Symmetrical Amperes, 600 Volts Maximum when Protected by Class J Fuses. Use Fuses Only. Tests with Class J fuses are representative of class CC fuses
3PSS60.20
Max 30A, 600 VAC
Class J or Class CC
3PSS60.25
Max 30A, 600 VAC
Class J or Class CC
3PSS60.30
Max 40A, 600 VAC Class J
Max 30A, 600 VAC Class CC
3PSS60.40
Max 40A, 600 VAC Class J
3PSS60.65
Max 60A, 600 VAC Class J
Co-ordination Type 2 Semiconductor fuses, Miniature Circuit Breakers (refer to our Spec Sheet)
3PSS60.20
Ferraz Shawmut (Mersen)
A70QS40-4
Siba
50 142 06 32
3PSS60.25
Ferraz Shawmut (Mersen)
A70QS40-4
Siba
50 142 06 32
3PSS60.30
Ferraz Shawmut (Mersen)
A70QS40-4
Siba
50 194 20 40
3PSS60.40
Ferraz Shawmut (Mersen)
A70QS50-4
Siba
50 194 20 50
3PSS60.65
Ferraz Shawmut (Mersen)
A70QS100-4
Siba
50 196 20 125
MDI Inc. Our Company!
See all MDI Electrical Products
Mercury Displacement Industries Incorporated, better known in the industry we serve as MDI, was incorporated in Michigan in 1975. The primary product line is switch gear components including mercury type contactors, tilt switches and liquid level float controls.
Contactors are rated from 30 to 100 Amperes and are commonly used in various heating, lighting, and many other industrial applications including high voltage ultraviolet type loads. The contacts are encased in hermetically sealed stainless steel tubes to provide reliable switching for millions of operations. All basic units are UL, CSA, and CE approved.
The liquid level control floats are manufactured with mechanical or mercury switches. The float material is High Impact Polystyrene for normal alarm, sump pump or water applications, For sewage, 1 or 2 H.P. or high temperature, 86°C (186°F) requirements Acrylonitrile Butadiene Styrene, (ABS) float material is provided.
MDI has 40 to 50 employees and markets products through distributors, representatives or direct to OEM accounts throughout the world.
MDI Quality Policy
It is the policy of MDI to manufacture and market products of excellent quality, durability and reliability. This policy emphasizes the importance of product reputation and customer satisfaction in the success of our business. The MDI Team is committed without exception to the continuous improvement in quality and cost, and to manufacturing productivity and efficiency.