P1200S Teccor Electronics, P1200S Datasheet - Page 154

• Manufacturer Part Number: P1200S
• Description: solid state crowbar devices
• Manufacturer: Teccor Electronics

UL 497B
UL 497B
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[phone]
UL 497B provides requirements for protectors used in communication and fire alarm
circuits. This standard does not cover devices for primary protection or protection devices
used on telephone lines. SIDACtor devices are components recognized in accordance with
UL 497B under UL file number E133083.
Construction and Performance Requirements
The “Construction” section covers the following requirements:
• General
• Corrosion Protection
• Field-wiring Connections
• Components
• Spacing
• Fuses
The “Performance” section covers the following requirements:
• General
• Strike Voltage Breakdown
• Endurance Conditioning
• Temperature Test
• Dielectric Voltage-withstand Test
• Vibration Conditioning
• Jarring Test
• Discharge Test
• Repeated Discharge Test
• Polymeric Materials Test
• High Temperature Test
• Marking
Performance Requirements Specific to SIDACtor Devices
1. Strike Voltage Breakdown Test — Protectors are required to break down within the
2. Endurance Conditioning — Protectors are subjected to 50 impulse cycles. Each cycle is
3. Variable Ambient Conditioning — Protectors must comply with the strike voltage
4. Discharge Test — Protectors must comply with strike voltage requirements after being
5. Repeated Discharge Test — Protectors must not break down at a voltage higher than the
manufacturer’s specified breakdown range or within 10% of a nominal single breakdown
voltage rating. (Figure 4.12)
a 1000 V peak, 10 A, 10x1000 µs pulse. Pulses are applied in one polarity at 10-second
intervals and then repeated in the opposite polarity.
requirements after being subjected to an ambient temperature of 0 °C for four hours and
again after being subjected to an ambient temperature of 49 °C for an additional four
hours.
subjected to five successive discharges from a 2 µF capacitor charged to 1000 V dc.
(Figure 4.13)
manufacturer’s maximum rated breakdown voltage nor lower than rated stand-off
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SIDACtor
®
Data Book and Design Guide
© 2002 Teccor Electronics