Its advantages over fuses are that it is resettable and the device’s status is easily and clearly identified by the position of the handle. In addition to this, the user is able to select a device that precisely fits the application (of which there are many) due to the availability of a wide range of current ratings, three levels of inrush tolerance (8x, 18x or 25x) and flexible time characteristic curves (Short, Medium and Long Delay). In addition to this, the SPHM’s protection performance is not adversely affected and is resistant to abnormal or changing ambient temperatures or even excessive environmental factors. The design allows it to be utilized in environments that c an expose it to fungus, shock or unordinary vibration.

• IEC breaker recognized by UL under UL1077 and CSA under CSA 22.2 No. 235
• Used to provide overcurrent protection where branch protection (for example UL489 MCCB) is already provided or not required
• Installed as a component within or part of an appliance or a piece of electrical equipment
• Ideal replacement for fuses that are applied as a supplementary protector i.e., in addition to branch protection (if required)
• 35 mm DIN rail mountable, utilizing the molded spring clip
• Light Gray case with Off White handle, that is marked "O" for OFF and "I" for ON
• UL File Number E69553

Supplementary Protectors are ideal for providing protection in a multitude of applications, including:

• Motor Control Circuits
• Control Power Transformers
• Relays
• Contactor Coils
• PLC I/O points
• Lighting Circuits

Features, Benefits and Functions:

• Environmental, Vibration and Shock Resistant
Mil-spec qualification for fungus resistance, humidity, salt spray resistance and shock vibration resistance

• Heat Induced Nuisance Tripping Eliminated
The protector is designed to "hold in" @ 100% continuous rated current, regardless of ambient temperatures from -40 to +85 degrees C

• Immediate Reset After Trip
The protector can be reset (closed) immediately after an overcurrent trip without a "cooling off" period

• 1/2 Cycle High Inrush Tolerance — 8x (standard), 18x and 25x
The protector is available with different levels of tolerance to 1/2 cycle current spikes — standard tolerance is 8x the continuous current rating; in addition 18x and 25x are also available

• Overcurrent Curves, Long, Medium or Short Delay
Time characteristic curves are available as Short, Medium and Long Delay

• Integral Auxiliary Switch (optional selection)
One auxiliary switch (a or b) can be factory installed per pole — a separate pole for auxiliary is NOT required.

• Precise Overcurrent Calibration
The protector can be precisely calibrated to a wide variety of current ratings, from 0.1 to 50 continuous amperes

• DIN Rail Mountable
The protector can be easily mounted, utilizing its quick release spring clip to attach it to a 35 mm DIN rail

Standards and Certifications

• UL recognized under UL 1077
• CSA 22.2 No. 235
• VDE 0660
• IEC 60947-2